organization · Reporting owner

SUMMIT PARTNERS L P

Disclosed activity across 7 companies

Tapewire entity: 23867
SEC CIK: 0000830588

Reported relationships

Latest disclosed role at each company.

Company	Last reported as	Report date	Published
A.K.A. BRANDS HOLDING CORP.AKA · Entity 6676	10% owner	September 22, 2021	September 22, 2021
Casa Systems IncCASA · Entity 95402	10% owner · Manager of GP of 10% owner	April 30, 2018	April 30, 2018
EngageSmart, Inc.ESMT · Entity 94837	10% owner	March 07, 2023	March 07, 2023
Klaviyo, Inc.KVYO · Entity 3775	10% owner	August 11, 2026	August 13, 2026
Solo Brands, Inc.SBDS · Entity 8034	10% owner	January 01, 2026	January 05, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

A.K.A. BRANDS HOLDING CORP.

Report date September 22, 2021 · Filed September 22, 2021

Jointly reported with NEW EXCELERATE L.P., SUMMIT PARTNERS GROWTH EQUITY FUND IX-B AIV, L.P., SUMMIT PARTNERS GROWTH EQUITY FUND IX-A AIV, L.P., CHUNG PETER Y, Fitzgerald Charles James JR

Security / award	Ownership account	Disclosed shares / units	Disclosure context
Common Stock, par value $0.001 per shareSEC Table I · non-derivative	IndirectSee Footnotes	72,644,324	Reported balance Holding disclosure · report date 2021-09-22 · row 1 Holding and transaction disclosures are not merged. 1 source row Row 1 · Balance 72,644,324 F1: Represents 72,644,324 shares of common stock held directly by New Excelerate L.P., the voting and disposition of which is controlled by Summit Partners, L.P. F2: Summit Partners, L.P. is (i) the sole shareholder of Summit Partners GE IX AIV, Ltd., which is the general partner of Summit Partners GE IX AIV, L.P., which is the general partner of Summit Partners Growth Equity Fund IX-B AIV, L.P. ("Summit IX-B") and (ii) the sole member of Summit Partners GE IX, LLC, which is the general partner of Summit Partners GE IX, L.P., which is the general partner of Summit Partners Growth Equity Fund IX-A AIV, L.P ("Summit IX-A"). F3: Summit IX-A and Summit IX-B have equal ownership of limited partnership interests of New Excelerate, L.P. Excelerate GP, Ltd. is the general partner of New Excelerate L.P. Summit Partners, L.P., through a two-person investment committee, currently comprised of Peter Y. Chung and Charles J. Fitzgerald, has voting and dispositive authority over the shares beneficially owned by each of these entities and therefore beneficially owns such shares. Mr. Chung and Mr. Fitzgerald disclaim beneficial ownership of the shares held directly by New Excelerate, L.P.

Filing footnotes · ownership attribution and instrument terms

F1: Represents 72,644,324 shares of common stock held directly by New Excelerate L.P., the voting and disposition of which is controlled by Summit Partners, L.P.

F2: Summit Partners, L.P. is (i) the sole shareholder of Summit Partners GE IX AIV, Ltd., which is the general partner of Summit Partners GE IX AIV, L.P., which is the general partner of Summit Partners Growth Equity Fund IX-B AIV, L.P. ("Summit IX-B") and (ii) the sole member of Summit Partners GE IX, LLC, which is the general partner of Summit Partners GE IX, L.P., which is the general partner of Summit Partners Growth Equity Fund IX-A AIV, L.P ("Summit IX-A").

F3: Summit IX-A and Summit IX-B have equal ownership of limited partnership interests of New Excelerate, L.P. Excelerate GP, Ltd. is the general partner of New Excelerate L.P. Summit Partners, L.P., through a two-person investment committee, currently comprised of Peter Y. Chung and Charles J. Fitzgerald, has voting and dispositive authority over the shares beneficially owned by each of these entities and therefore beneficially owns such shares. Mr. Chung and Mr. Fitzgerald disclaim beneficial ownership of the shares held directly by New Excelerate, L.P.

Casa Systems Inc

Report date April 30, 2018 · Filed April 30, 2018

Jointly reported with SUMMIT MASTER COMPANY, LLC, Summit Partners PE VII, L.P., Summit Partners PE VII, LLC, Summit Investors Management, LLC, Summit Partners Private Equity Fund VII-A, L.P., Summit Partners Private Equity Fund VII B L P, Summit Investors I, LLC, Summit Investors I (UK), L.P.

Security / award	Ownership account	Disclosed shares / units	Disclosure context
Common StockSEC Table I · non-derivative	IndirectSee Footnotes	34,124,480	Reported balance After 2018-04-30 transaction · row 1 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 1 · 2018-04-30 · Sale · Disposed 4,717,520 · Balance 34,124,480 F1: Consists of 2,940,250 shares of common stock sold by Summit Partners Private Equity Fund VII-A, L.P., 1,765,961 shares of common stock sold by Summit Partners Private Equity Fund VII-B, L.P., 10,037 shares of common stock sold by Summit Investors I, LLC and 1,272 shares of common stock sold by Summit Investors I (UK), L.P. F2: Of the shares sold by the reporting persons mentioned in footnote (1), the sale of 250,000 shares is matchable under Section 16(b) of the Securities Exchange Act of 1934, as amended, with the purchase of 250,000 shares on December 19, 2017 at $13.0 per share. The reporting persons mentioned in footnote (1) have paid to the issuer an aggregate of $2,721,875.00, representing the full amount of the profit realized in connection with the short-swing transaction, less transaction costs. F3: Consists of 21,268,476 shares of common stock held by Summit Partners Private Equity Fund VII-A, L.P., 12,774,194 shares of common stock held by Summit Partners Private Equity Fund VII-B, L.P., 72,605 shares of common stock issued held by Summit Investors I, LLC and 9,205 shares of common stock held by Summit Investors I (UK), L.P. F4: Summit Partners, L.P. is the managing member of Summit Partners PE VII, LLC, which is the general partner of Summit Partners PE VII, L.P., which is the general partner of each of Summit Partners Private Equity Fund VII-A, L.P. and Summit Partners Private Equity Fund VII-B, L.P. Summit Master Company, LLC is the managing member of Summit Investors Management, LLC, which is the manager of Summit Investors I, LLC, and the general partner of Summit Investors I (UK), L.P. Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC, has delegated investment decisions, including voting and dispositive power, to Summit Partners, L.P. and its investment committee responsible for voting and investment decisions with respect to the Issuer. F5: Summit Partners, L.P., through a three-person investment committee responsible for voting and investment decisions with respect to the Issuer, currently comprised of Peter Y. Chung, Bruce R. Evans and Martin J. Mannion, has voting and dispositive power over the shares held by each of these entities and therefore may be deemed to beneficially own such shares. Each of the Summit entities and persons mentioned in this footnote disclaims beneficial ownership of the shares, except for those shares held of record by such entity, and except to the extent of their pecuniary interest therein.

Filing footnotes · ownership attribution and instrument terms

F1: Consists of 2,940,250 shares of common stock sold by Summit Partners Private Equity Fund VII-A, L.P., 1,765,961 shares of common stock sold by Summit Partners Private Equity Fund VII-B, L.P., 10,037 shares of common stock sold by Summit Investors I, LLC and 1,272 shares of common stock sold by Summit Investors I (UK), L.P.

F2: Of the shares sold by the reporting persons mentioned in footnote (1), the sale of 250,000 shares is matchable under Section 16(b) of the Securities Exchange Act of 1934, as amended, with the purchase of 250,000 shares on December 19, 2017 at $13.0 per share. The reporting persons mentioned in footnote (1) have paid to the issuer an aggregate of $2,721,875.00, representing the full amount of the profit realized in connection with the short-swing transaction, less transaction costs.

F3: Consists of 21,268,476 shares of common stock held by Summit Partners Private Equity Fund VII-A, L.P., 12,774,194 shares of common stock held by Summit Partners Private Equity Fund VII-B, L.P., 72,605 shares of common stock issued held by Summit Investors I, LLC and 9,205 shares of common stock held by Summit Investors I (UK), L.P.

F4: Summit Partners, L.P. is the managing member of Summit Partners PE VII, LLC, which is the general partner of Summit Partners PE VII, L.P., which is the general partner of each of Summit Partners Private Equity Fund VII-A, L.P. and Summit Partners Private Equity Fund VII-B, L.P. Summit Master Company, LLC is the managing member of Summit Investors Management, LLC, which is the manager of Summit Investors I, LLC, and the general partner of Summit Investors I (UK), L.P. Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC, has delegated investment decisions, including voting and dispositive power, to Summit Partners, L.P. and its investment committee responsible for voting and investment decisions with respect to the Issuer.

F5: Summit Partners, L.P., through a three-person investment committee responsible for voting and investment decisions with respect to the Issuer, currently comprised of Peter Y. Chung, Bruce R. Evans and Martin J. Mannion, has voting and dispositive power over the shares held by each of these entities and therefore may be deemed to beneficially own such shares. Each of the Summit entities and persons mentioned in this footnote disclaims beneficial ownership of the shares, except for those shares held of record by such entity, and except to the extent of their pecuniary interest therein.

EngageSmart, Inc.

Report date March 07, 2023 · Filed March 07, 2023

Jointly reported with Summit Partners Growth Equity Fund VIII-A, L.P., Summit Partners Growth Equity Fund VIII-B, L.P., Summit Partners Entrepreneur Advisors Fund I, L.P., Summit Investors I, LLC, Summit Investors I (UK), L.P., SUMMIT MASTER COMPANY, LLC, CHUNG PETER Y, COLLINS SCOTT C

Security / award	Ownership account	Disclosed shares / units	Disclosure context
Common Stock, par value $0.001 per shareSEC Table I · non-derivative	IndirectSee Footnote	25,004,973	Reported balance After 2023-03-07 transaction · row 1 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 1 · 2023-03-07 · Sale · Disposed 252,727 · Balance 25,004,973 F1: Represents (i) 181,406 shares of Common Stock sold by Summit Partners Growth Equity Fund VIII-A, L.P., (ii) 66,271 shares of Common Stock sold by Summit Partners Growth Equity Fund VIII-B, L.P., (iii) 1,203 shares of Common Stock sold by Summit Partners Entrepreneur Advisors Fund I, L.P., (iv) 3,473 shares of Common Stock sold by Summit Investors I, LLC and (v) 374 shares of Common Stock sold by Summit Investors I (UK), L.P. The reported sales were effected pursuant to a full exercise by the underwriters of a greenshoe option of the previously reported underwritten public offering that closed on March 3, 2023. F2: This amount represents a public offering price of $19.00 per share of Common Stock of EngageSmart, Inc. (the "Company"), less an underwriting discount of $0.8075 per share for shares sold in an underwritten public offering. F3: Consists of (i) 17,948,333 shares of Common Stock held by Summit Partners Growth Equity Fund VIII-A, L.P., (ii) 6,556,911 shares of Common Stock held by Summit Partners Growth Equity Fund VIII-B, L.P.,(iii) 119,071 shares of Common Stock held by Summit Partners Entrepreneur Advisors Fund I, L.P., (iv) 343,615 shares of Common Stock held by Summit Investors I, LLC and (v) 37,043 shares of Common Stock held by Summit Investors I (UK), L.P. F4: Summit Partners, L.P. is the managing member of Summit Partners GE VIII, LLC, which is the general partner of Summit Partners GE VIII, L.P., which is the general partner of each of Summit Partners Growth Equity Fund VIII-A, L.P. and Summit Partners Growth Equity Fund VIII-B, L.P. Summit Master Company, LLC is the (A) sole managing member of Summit Partners Entrepreneur Advisors GP, LLC, which is the general partner of Summit Partners Entrepreneur Advisors Fund I, L.P., and (B) the managing member of Summit Investors Management, LLC, which is the manager of Summit Investors I, LLC and the general partner of Summit Investors I (UK), L.P. Summit Master Company, LLC, as the sole managing member of Summit Partners Entrepreneur Advisors GP, LLC and F5: (Continued from footnote 4), has delegated investment decisions, including voting and dispositive power, to Summit Partners, L.P. Investment decisions for Summit Partners, L.P. are made by its two-person Investment Committee, which is currently composed of Scott Collins and Peter Y. Chung. Summit Partners L.P., Scott Collins and Peter Y. Chung each have voting and dispositive authority over the shares held by each of these entities and therefore beneficially owns such shares. Each of the entities affiliated with Summit Partners, L.P. that are mentioned herein and each of Mr. Collins and Mr. Chung disclaims beneficial ownership of the shares of common stock, in each case, except to the extent of it or his pecuniary interest therein.

Filing footnotes · ownership attribution and instrument terms

F1: Represents (i) 181,406 shares of Common Stock sold by Summit Partners Growth Equity Fund VIII-A, L.P., (ii) 66,271 shares of Common Stock sold by Summit Partners Growth Equity Fund VIII-B, L.P., (iii) 1,203 shares of Common Stock sold by Summit Partners Entrepreneur Advisors Fund I, L.P., (iv) 3,473 shares of Common Stock sold by Summit Investors I, LLC and (v) 374 shares of Common Stock sold by Summit Investors I (UK), L.P. The reported sales were effected pursuant to a full exercise by the underwriters of a greenshoe option of the previously reported underwritten public offering that closed on March 3, 2023.

F2: This amount represents a public offering price of $19.00 per share of Common Stock of EngageSmart, Inc. (the "Company"), less an underwriting discount of $0.8075 per share for shares sold in an underwritten public offering.

F3: Consists of (i) 17,948,333 shares of Common Stock held by Summit Partners Growth Equity Fund VIII-A, L.P., (ii) 6,556,911 shares of Common Stock held by Summit Partners Growth Equity Fund VIII-B, L.P.,(iii) 119,071 shares of Common Stock held by Summit Partners Entrepreneur Advisors Fund I, L.P., (iv) 343,615 shares of Common Stock held by Summit Investors I, LLC and (v) 37,043 shares of Common Stock held by Summit Investors I (UK), L.P.

F4: Summit Partners, L.P. is the managing member of Summit Partners GE VIII, LLC, which is the general partner of Summit Partners GE VIII, L.P., which is the general partner of each of Summit Partners Growth Equity Fund VIII-A, L.P. and Summit Partners Growth Equity Fund VIII-B, L.P. Summit Master Company, LLC is the (A) sole managing member of Summit Partners Entrepreneur Advisors GP, LLC, which is the general partner of Summit Partners Entrepreneur Advisors Fund I, L.P., and (B) the managing member of Summit Investors Management, LLC, which is the manager of Summit Investors I, LLC and the general partner of Summit Investors I (UK), L.P. Summit Master Company, LLC, as the sole managing member of Summit Partners Entrepreneur Advisors GP, LLC and

F5: (Continued from footnote 4), has delegated investment decisions, including voting and dispositive power, to Summit Partners, L.P. Investment decisions for Summit Partners, L.P. are made by its two-person Investment Committee, which is currently composed of Scott Collins and Peter Y. Chung. Summit Partners L.P., Scott Collins and Peter Y. Chung each have voting and dispositive authority over the shares held by each of these entities and therefore beneficially owns such shares. Each of the entities affiliated with Summit Partners, L.P. that are mentioned herein and each of Mr. Collins and Mr. Chung disclaims beneficial ownership of the shares of common stock, in each case, except to the extent of it or his pecuniary interest therein.

Klaviyo, Inc.

Report date August 11, 2026 · Filed August 13, 2026

Jointly reported with Summit Partners Growth Equity Fund IX-A, L.P., Summit Partners Growth Equity Fund IX-B, L.P., Summit Partners Co-Invest (Kiwi), LP, SUMMIT INVESTORS GE IX/VC IV, LLC, SUMMIT INVESTORS GE IX/VC IV (UK), L.P.

Security / award	Ownership account	Disclosed shares / units	Disclosure context
Series A Common Stock, par value $0.001 per shareSEC Table I · non-derivative	IndirectSee footnotes	0	Last balance in matching sequence After 2026-08-11 transaction · row 2 Source-order balances reconcile. Account continuity and personal attribution are not independently verified. 2 source rows Row 1 · 2026-08-11 · Conversion · Acquired 5,000,000 · Balance 5,000,000 F1: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation. F2: Summit Partners, L.P. is the manager of Summit Partners GE IX, LLC, which is the general partner of Summit Partners GE IX, LP, which is the general partner of Summit Partners Growth Equity Fund IX-A, L.P. ("Fund IX-A") and Summit Partners Growth Equity Fund IX-B, L.P. ("Fund IX-B"). Summit Partners, L.P. is the managing member of Summit Partners Co-Invest Kiwi GP, LLC, which is the general partner of Summit Partners Co-Invest (Kiwi), L.P. ("Kiwi Co-Invest Fund"). Summit Master Company, LLC is the general partner of Summit Partners, L.P., which is the manager of Summit Investors Management, LLC, which is the manager of Summit Investors GE IX/VC IV, LLC ("Fund IX/VC IV") and the general partner of Summit Investors GE IX/VC IV (UK), L.P. ("Fund IX/VC IV (UK)"). F3: (continued from footnote 2) Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC, has delegated voting and investment decisions with respect to the securities held by Fund IX/VC IV and Fund IX/VC IV (UK) to Summit Partners, L.P. F4: The investment committee of Summit Partners, L.P., is currently composed of Peter Y. Chung, Scott C. Collins, and Peter L. Rottier, who may be deemed to have voting and dispositive authority over, and therefore beneficial ownership of, the reported securities. Each of the foregoing entities, Mr. Chung, Mr. Collins, and Mr. Rottier disclaims beneficial ownership of the shares, except to the extent of such person's or entity's pecuniary interest therein and the filing of this statement shall not be deemed an admission that any of the foregoing entities or persons are, for purposes of Section 16 of the Act or otherwise, the beneficial owner of any equity securities covered by this statement. Row 2 · 2026-08-11 · Sale · Disposed 5,000,000 · Balance 0 F2: Summit Partners, L.P. is the manager of Summit Partners GE IX, LLC, which is the general partner of Summit Partners GE IX, LP, which is the general partner of Summit Partners Growth Equity Fund IX-A, L.P. ("Fund IX-A") and Summit Partners Growth Equity Fund IX-B, L.P. ("Fund IX-B"). Summit Partners, L.P. is the managing member of Summit Partners Co-Invest Kiwi GP, LLC, which is the general partner of Summit Partners Co-Invest (Kiwi), L.P. ("Kiwi Co-Invest Fund"). Summit Master Company, LLC is the general partner of Summit Partners, L.P., which is the manager of Summit Investors Management, LLC, which is the manager of Summit Investors GE IX/VC IV, LLC ("Fund IX/VC IV") and the general partner of Summit Investors GE IX/VC IV (UK), L.P. ("Fund IX/VC IV (UK)"). F3: (continued from footnote 2) Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC, has delegated voting and investment decisions with respect to the securities held by Fund IX/VC IV and Fund IX/VC IV (UK) to Summit Partners, L.P. F4: The investment committee of Summit Partners, L.P., is currently composed of Peter Y. Chung, Scott C. Collins, and Peter L. Rottier, who may be deemed to have voting and dispositive authority over, and therefore beneficial ownership of, the reported securities. Each of the foregoing entities, Mr. Chung, Mr. Collins, and Mr. Rottier disclaims beneficial ownership of the shares, except to the extent of such person's or entity's pecuniary interest therein and the filing of this statement shall not be deemed an admission that any of the foregoing entities or persons are, for purposes of Section 16 of the Act or otherwise, the beneficial owner of any equity securities covered by this statement.
Series B Common Stock, par value $0.001 per shareSEC Table II · derivative / convertible security	IndirectSee footnotes	13,852,778	Reported balance After 2026-08-11 transaction · row 3 Instrument identity requires review; Table II rows are not merged. 1 source row Row 3 · 2026-08-11 · Conversion · Acquired 5,000,000 · Balance 13,852,778 F1: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation. F5: Consists of (i) 8,187,302 shares of Series B Common Stock held by Fund IX-A, (ii) 5,112,037 shares of Series B Common Stock held by Fund IX-B, (iii) 504,825 shares of Series B Common Stock held by Kiwi Co-Invest Fund, (iv) 43,030 shares of Series B Common Stock held by Fund IX/VC IV, and (v) 5,584 shares of Series B Common Stock held by Fund IX/VC IV (UK). F2: Summit Partners, L.P. is the manager of Summit Partners GE IX, LLC, which is the general partner of Summit Partners GE IX, LP, which is the general partner of Summit Partners Growth Equity Fund IX-A, L.P. ("Fund IX-A") and Summit Partners Growth Equity Fund IX-B, L.P. ("Fund IX-B"). Summit Partners, L.P. is the managing member of Summit Partners Co-Invest Kiwi GP, LLC, which is the general partner of Summit Partners Co-Invest (Kiwi), L.P. ("Kiwi Co-Invest Fund"). Summit Master Company, LLC is the general partner of Summit Partners, L.P., which is the manager of Summit Investors Management, LLC, which is the manager of Summit Investors GE IX/VC IV, LLC ("Fund IX/VC IV") and the general partner of Summit Investors GE IX/VC IV (UK), L.P. ("Fund IX/VC IV (UK)"). F3: (continued from footnote 2) Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC, has delegated voting and investment decisions with respect to the securities held by Fund IX/VC IV and Fund IX/VC IV (UK) to Summit Partners, L.P. F4: The investment committee of Summit Partners, L.P., is currently composed of Peter Y. Chung, Scott C. Collins, and Peter L. Rottier, who may be deemed to have voting and dispositive authority over, and therefore beneficial ownership of, the reported securities. Each of the foregoing entities, Mr. Chung, Mr. Collins, and Mr. Rottier disclaims beneficial ownership of the shares, except to the extent of such person's or entity's pecuniary interest therein and the filing of this statement shall not be deemed an admission that any of the foregoing entities or persons are, for purposes of Section 16 of the Act or otherwise, the beneficial owner of any equity securities covered by this statement.

Filing footnotes · ownership attribution and instrument terms

F1: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation.

F2: Summit Partners, L.P. is the manager of Summit Partners GE IX, LLC, which is the general partner of Summit Partners GE IX, LP, which is the general partner of Summit Partners Growth Equity Fund IX-A, L.P. ("Fund IX-A") and Summit Partners Growth Equity Fund IX-B, L.P. ("Fund IX-B"). Summit Partners, L.P. is the managing member of Summit Partners Co-Invest Kiwi GP, LLC, which is the general partner of Summit Partners Co-Invest (Kiwi), L.P. ("Kiwi Co-Invest Fund"). Summit Master Company, LLC is the general partner of Summit Partners, L.P., which is the manager of Summit Investors Management, LLC, which is the manager of Summit Investors GE IX/VC IV, LLC ("Fund IX/VC IV") and the general partner of Summit Investors GE IX/VC IV (UK), L.P. ("Fund IX/VC IV (UK)").

F3: (continued from footnote 2) Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC, has delegated voting and investment decisions with respect to the securities held by Fund IX/VC IV and Fund IX/VC IV (UK) to Summit Partners, L.P.

F4: The investment committee of Summit Partners, L.P., is currently composed of Peter Y. Chung, Scott C. Collins, and Peter L. Rottier, who may be deemed to have voting and dispositive authority over, and therefore beneficial ownership of, the reported securities. Each of the foregoing entities, Mr. Chung, Mr. Collins, and Mr. Rottier disclaims beneficial ownership of the shares, except to the extent of such person's or entity's pecuniary interest therein and the filing of this statement shall not be deemed an admission that any of the foregoing entities or persons are, for purposes of Section 16 of the Act or otherwise, the beneficial owner of any equity securities covered by this statement.

F5: Consists of (i) 8,187,302 shares of Series B Common Stock held by Fund IX-A, (ii) 5,112,037 shares of Series B Common Stock held by Fund IX-B, (iii) 504,825 shares of Series B Common Stock held by Kiwi Co-Invest Fund, (iv) 43,030 shares of Series B Common Stock held by Fund IX/VC IV, and (v) 5,584 shares of Series B Common Stock held by Fund IX/VC IV (UK).

Solo Brands, Inc.

Report date January 01, 2026 · Filed January 05, 2026

Jointly reported with Summit Partners Growth Equity Fund X-A, L.P., Summit Partners Growth Equity Fund X-B, L.P., Summit Partners Growth Equity Fund X-C, L.P., SUMMIT INVESTORS X, LLC, SUMMIT INVESTORS X (UK), L.P., Summit Partners Subordinated Debt Fund V-A, L.P., Summit Partners Subordinated Debt Fund V-B, L.P., SP-SS AGGREGATOR LLC

Security / award	Ownership account	Disclosed shares / units	Disclosure context
Class A Common Stock, $0.001 par value per shareSEC Table I · non-derivative	IndirectSee Footnotes	1,100,870	Reported balance After 2026-01-01 transaction · row 1 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 1 · 2026-01-01 · Conversion · Acquired 354,189 · Balance 1,100,870 F1: On December 17, 2025, the Issuer entered into an Agreement and Plan of Merger (the "Merger Agreement") with its subsidiaries Solo Stove Holdings, LLC ("Holdings") and Solo Merger Sub LLC ("Merger Sub"), whereby effective January 1, 2026, Merger Sub merged with and into Holdings, with Holdings continuing as the surviving entity as a wholly owned subsidiary of the Issuer (the "Merger"). Pursuant to the Merger Agreement, on January 1, 2026, each of the issued and outstanding common membership interests in Holdings beneficially owned by members of Holdings was cancelled and converted automatically into a right to receive one share of Class A Common Stock. In addition, immediately following the effective time of the Merger, all of the issued and outstanding shares of Class B Common Stock were retired and cancelled in accordance with the Issuer's Amended and Restated Certificate of Incorporation and Holdings' Amended and Restated Limited Liability Company Agreement. F2: Represents 282,623, 431,780, 11,657, 14,227, 5,029, 1,268, 97 and 354,189 shares of Class A Common Stock held directly by Summit Partners Growth Equity Fund X-A, L.P., Summit Partners Growth Equity Fund X-B, L.P., Summit Partners Growth Equity Fund X-C, L.P., Summit Partners Subordinated Debt Fund V-A, L.P., Summit Partners Subordinated Debt Fund V-B, L.P., Summit Investors X, LLC, Summit Investors X (UK), L.P. and SP-SS Aggregator LLC, respectively. Summit Partners, L.P. is the managing member of Summit Partners GE X, LLC, which is the general partner of Summit Partners GE X, L.P., the general partner of each of Summit Partners Growth Equity Fund X-A, L.P., Summit Partners Growth Equity Fund X-B, L.P., and Summit Partners Growth Equity Fund X-C, L.P. Summit Partners, L.P. also is the managing member of Summit Partners SD V, LLC, which is the general partner of Summit Partners SD V, L.P., F3: (continued from footnote 2) the general partner of each of Summit Partners Subordinated Debt Fund V-A, L.P. and Summit Partners Subordinated Debt Fund V-B, L.P. Summit Master Company, LLC is the sole managing member of Summit Investors Management, LLC, which is (A) the manager of Summit Investors X, LLC, and (B) the general partner of Summit Investors X (UK), L.P. Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC, has delegated investment decisions, including voting and dispositive power, to Summit Partners, L.P. and its Investment Committee. SP-SS Aggregator LLC is managed by a manager appointed by the members holding a majority of the interests of the entity, which manager is currently designated to be Summit Partners Growth Equity Fund X-A, L.P.
Class B Common Stock, $0.001 par value per shareSEC Table I · non-derivative	IndirectSee Footnotes	0	Reported balance After 2026-01-01 transaction · row 2 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 2 · 2026-01-01 · Other · Disposed 354,189 · Balance 0 F1: On December 17, 2025, the Issuer entered into an Agreement and Plan of Merger (the "Merger Agreement") with its subsidiaries Solo Stove Holdings, LLC ("Holdings") and Solo Merger Sub LLC ("Merger Sub"), whereby effective January 1, 2026, Merger Sub merged with and into Holdings, with Holdings continuing as the surviving entity as a wholly owned subsidiary of the Issuer (the "Merger"). Pursuant to the Merger Agreement, on January 1, 2026, each of the issued and outstanding common membership interests in Holdings beneficially owned by members of Holdings was cancelled and converted automatically into a right to receive one share of Class A Common Stock. In addition, immediately following the effective time of the Merger, all of the issued and outstanding shares of Class B Common Stock were retired and cancelled in accordance with the Issuer's Amended and Restated Certificate of Incorporation and Holdings' Amended and Restated Limited Liability Company Agreement. F2: Represents 282,623, 431,780, 11,657, 14,227, 5,029, 1,268, 97 and 354,189 shares of Class A Common Stock held directly by Summit Partners Growth Equity Fund X-A, L.P., Summit Partners Growth Equity Fund X-B, L.P., Summit Partners Growth Equity Fund X-C, L.P., Summit Partners Subordinated Debt Fund V-A, L.P., Summit Partners Subordinated Debt Fund V-B, L.P., Summit Investors X, LLC, Summit Investors X (UK), L.P. and SP-SS Aggregator LLC, respectively. Summit Partners, L.P. is the managing member of Summit Partners GE X, LLC, which is the general partner of Summit Partners GE X, L.P., the general partner of each of Summit Partners Growth Equity Fund X-A, L.P., Summit Partners Growth Equity Fund X-B, L.P., and Summit Partners Growth Equity Fund X-C, L.P. Summit Partners, L.P. also is the managing member of Summit Partners SD V, LLC, which is the general partner of Summit Partners SD V, L.P., F3: (continued from footnote 2) the general partner of each of Summit Partners Subordinated Debt Fund V-A, L.P. and Summit Partners Subordinated Debt Fund V-B, L.P. Summit Master Company, LLC is the sole managing member of Summit Investors Management, LLC, which is (A) the manager of Summit Investors X, LLC, and (B) the general partner of Summit Investors X (UK), L.P. Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC, has delegated investment decisions, including voting and dispositive power, to Summit Partners, L.P. and its Investment Committee. SP-SS Aggregator LLC is managed by a manager appointed by the members holding a majority of the interests of the entity, which manager is currently designated to be Summit Partners Growth Equity Fund X-A, L.P.
Common UnitsSEC Table II · derivative / convertible security	IndirectSee Footnotes	0	Reported balance After 2026-01-01 transaction · row 3 Instrument identity requires review; Table II rows are not merged. 1 source row Row 3 · 2026-01-01 · Conversion · Disposed 354,189 · Balance 0 F1: On December 17, 2025, the Issuer entered into an Agreement and Plan of Merger (the "Merger Agreement") with its subsidiaries Solo Stove Holdings, LLC ("Holdings") and Solo Merger Sub LLC ("Merger Sub"), whereby effective January 1, 2026, Merger Sub merged with and into Holdings, with Holdings continuing as the surviving entity as a wholly owned subsidiary of the Issuer (the "Merger"). Pursuant to the Merger Agreement, on January 1, 2026, each of the issued and outstanding common membership interests in Holdings beneficially owned by members of Holdings was cancelled and converted automatically into a right to receive one share of Class A Common Stock. In addition, immediately following the effective time of the Merger, all of the issued and outstanding shares of Class B Common Stock were retired and cancelled in accordance with the Issuer's Amended and Restated Certificate of Incorporation and Holdings' Amended and Restated Limited Liability Company Agreement. F2: Represents 282,623, 431,780, 11,657, 14,227, 5,029, 1,268, 97 and 354,189 shares of Class A Common Stock held directly by Summit Partners Growth Equity Fund X-A, L.P., Summit Partners Growth Equity Fund X-B, L.P., Summit Partners Growth Equity Fund X-C, L.P., Summit Partners Subordinated Debt Fund V-A, L.P., Summit Partners Subordinated Debt Fund V-B, L.P., Summit Investors X, LLC, Summit Investors X (UK), L.P. and SP-SS Aggregator LLC, respectively. Summit Partners, L.P. is the managing member of Summit Partners GE X, LLC, which is the general partner of Summit Partners GE X, L.P., the general partner of each of Summit Partners Growth Equity Fund X-A, L.P., Summit Partners Growth Equity Fund X-B, L.P., and Summit Partners Growth Equity Fund X-C, L.P. Summit Partners, L.P. also is the managing member of Summit Partners SD V, LLC, which is the general partner of Summit Partners SD V, L.P., F3: (continued from footnote 2) the general partner of each of Summit Partners Subordinated Debt Fund V-A, L.P. and Summit Partners Subordinated Debt Fund V-B, L.P. Summit Master Company, LLC is the sole managing member of Summit Investors Management, LLC, which is (A) the manager of Summit Investors X, LLC, and (B) the general partner of Summit Investors X (UK), L.P. Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC, has delegated investment decisions, including voting and dispositive power, to Summit Partners, L.P. and its Investment Committee. SP-SS Aggregator LLC is managed by a manager appointed by the members holding a majority of the interests of the entity, which manager is currently designated to be Summit Partners Growth Equity Fund X-A, L.P.

Filing footnotes · ownership attribution and instrument terms

F1: On December 17, 2025, the Issuer entered into an Agreement and Plan of Merger (the "Merger Agreement") with its subsidiaries Solo Stove Holdings, LLC ("Holdings") and Solo Merger Sub LLC ("Merger Sub"), whereby effective January 1, 2026, Merger Sub merged with and into Holdings, with Holdings continuing as the surviving entity as a wholly owned subsidiary of the Issuer (the "Merger"). Pursuant to the Merger Agreement, on January 1, 2026, each of the issued and outstanding common membership interests in Holdings beneficially owned by members of Holdings was cancelled and converted automatically into a right to receive one share of Class A Common Stock. In addition, immediately following the effective time of the Merger, all of the issued and outstanding shares of Class B Common Stock were retired and cancelled in accordance with the Issuer's Amended and Restated Certificate of Incorporation and Holdings' Amended and Restated Limited Liability Company Agreement.

F2: Represents 282,623, 431,780, 11,657, 14,227, 5,029, 1,268, 97 and 354,189 shares of Class A Common Stock held directly by Summit Partners Growth Equity Fund X-A, L.P., Summit Partners Growth Equity Fund X-B, L.P., Summit Partners Growth Equity Fund X-C, L.P., Summit Partners Subordinated Debt Fund V-A, L.P., Summit Partners Subordinated Debt Fund V-B, L.P., Summit Investors X, LLC, Summit Investors X (UK), L.P. and SP-SS Aggregator LLC, respectively. Summit Partners, L.P. is the managing member of Summit Partners GE X, LLC, which is the general partner of Summit Partners GE X, L.P., the general partner of each of Summit Partners Growth Equity Fund X-A, L.P., Summit Partners Growth Equity Fund X-B, L.P., and Summit Partners Growth Equity Fund X-C, L.P. Summit Partners, L.P. also is the managing member of Summit Partners SD V, LLC, which is the general partner of Summit Partners SD V, L.P.,

F3: (continued from footnote 2) the general partner of each of Summit Partners Subordinated Debt Fund V-A, L.P. and Summit Partners Subordinated Debt Fund V-B, L.P. Summit Master Company, LLC is the sole managing member of Summit Investors Management, LLC, which is (A) the manager of Summit Investors X, LLC, and (B) the general partner of Summit Investors X (UK), L.P. Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC, has delegated investment decisions, including voting and dispositive power, to Summit Partners, L.P. and its Investment Committee. SP-SS Aggregator LLC is managed by a manager appointed by the members holding a majority of the interests of the entity, which manager is currently designated to be Summit Partners Growth Equity Fund X-A, L.P.

Past disclosures · reporting ended (2)

No longer tracked through insider filings. These historical balances do not imply present ownership or a zero position.

A10 Networks, Inc.

Report date September 08, 2022 · Filed September 09, 2022

Jointly reported with SUMMIT PARTNERS GE VIII, L.P., Summit Partners GE VIII, LLC, Summit Investors Management, LLC, Summit Partners Growth Equity Fund VIII-A, L.P., Summit Partners Growth Equity Fund VIII-B, L.P., Summit Investors I, LLC, Summit Investors I (UK), L.P., SUMMIT MASTER COMPANY, LLC, MANNION MARTIN J

Section 16 reporting ended · disclosed 2022-09-09. Current position is not established by this disclosure.

Security / award	Ownership account	Disclosed shares / units	Disclosure context
Common StockSEC Table I · non-derivative	IndirectSee Remarks	5,388,206	Reported balance After 2022-09-08 transaction · row 1 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 1 · 2022-09-08 · Disposition to issuer · Disposed 3,500,000 · Balance 5,388,206 F1: Represents 2,551,588 shares sold by Summit Partners Growth Equity Fund VIII-A, L.P., 932,181 shares sold by Summit Partners Growth Equity Fund VIII-B, L.P., 14,919 shares sold by Summit Investors I, LLC, and 1,312 shares sold by Summit Investors I (UK), L.P. F2: The reported securities are held as follows: 3,811,230 shares in the name of Summit Partners Growth Equity Fund VIII-A, L.P.; 1,392,372 shares in the name of Summit Partners Growth Equity Fund VIII-B, L.P.; 22,283 shares in the name of Summit Investors I, LLC; 1,961 shares in the name of Summit Investors I (UK), L.P.; 160,360 shares and restricted stock units in the name of Mr. Chung, which are held for the benefit of Summit Partners, L.P. F3: Summit Partners, L.P. is the managing member of Summit Partners GE VIII, LLC, which is the general partner of Summit Partners GE VIII, L.P., which is the general partner of each of Summit Partners Growth Equity Fund VIII-A, L.P. and Summit Partners Growth Equity Fund VIII-B, L.P. Summit Master Company, LLC is the managing member of Summit Investors Management, LLC, which is the manager of Summit Investors I, LLC and the general partner of Summit Investors I (UK), L.P. Summit Partners GE VIII, LLC, as the general partner of Summit Partners GE VIII, L.P., and Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC has each delegated investment decisions, including voting and dispositive power, to Summit Partners, L.P. and its Investment Committee responsible for voting and investment decisions with respect to the Company. Summit Partners, L.P., through a two-person Investment Committee, responsible for voting and investment decisions with respect to the Issuer, currently composed of Martin J. Mannion and Peter Y. Chung, has voting and dispositive authority over the shares and restricted stock units reported herein and therefore may be deemed to beneficially own such shares. Each of the Summit entities, Mr. Mannion and Mr. Chung each disclaim beneficial ownership of the shares of common stock and the restricted stock units, except to the extent of their respective pecuniary interest therein.

Filing footnotes · ownership attribution and instrument terms

F1: Represents 2,551,588 shares sold by Summit Partners Growth Equity Fund VIII-A, L.P., 932,181 shares sold by Summit Partners Growth Equity Fund VIII-B, L.P., 14,919 shares sold by Summit Investors I, LLC, and 1,312 shares sold by Summit Investors I (UK), L.P.

F2: The reported securities are held as follows: 3,811,230 shares in the name of Summit Partners Growth Equity Fund VIII-A, L.P.; 1,392,372 shares in the name of Summit Partners Growth Equity Fund VIII-B, L.P.; 22,283 shares in the name of Summit Investors I, LLC; 1,961 shares in the name of Summit Investors I (UK), L.P.; 160,360 shares and restricted stock units in the name of Mr. Chung, which are held for the benefit of Summit Partners, L.P.

F3: Summit Partners, L.P. is the managing member of Summit Partners GE VIII, LLC, which is the general partner of Summit Partners GE VIII, L.P., which is the general partner of each of Summit Partners Growth Equity Fund VIII-A, L.P. and Summit Partners Growth Equity Fund VIII-B, L.P. Summit Master Company, LLC is the managing member of Summit Investors Management, LLC, which is the manager of Summit Investors I, LLC and the general partner of Summit Investors I (UK), L.P. Summit Partners GE VIII, LLC, as the general partner of Summit Partners GE VIII, L.P., and Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC has each delegated investment decisions, including voting and dispositive power, to Summit Partners, L.P. and its Investment Committee responsible for voting and investment decisions with respect to the Company. Summit Partners, L.P., through a two-person Investment Committee, responsible for voting and investment decisions with respect to the Issuer, currently composed of Martin J. Mannion and Peter Y. Chung, has voting and dispositive authority over the shares and restricted stock units reported herein and therefore may be deemed to beneficially own such shares. Each of the Summit entities, Mr. Mannion and Mr. Chung each disclaim beneficial ownership of the shares of common stock and the restricted stock units, except to the extent of their respective pecuniary interest therein.

LifeStance Health Group, Inc.

Report date August 18, 2025 · Filed August 20, 2025

Jointly reported with Summit Partners Growth Equity Fund IX-A, L.P., Summit Partners Growth Equity Fund IX-B, L.P., SUMMIT INVESTORS GE IX/VC IV, LLC, SUMMIT INVESTORS GE IX/VC IV (UK), L.P., Summit Partners Entrepreneur Advisors Fund II, L.P.

Section 16 reporting ended · disclosed 2025-08-20. Current position is not established by this disclosure.

Security / award	Ownership account	Disclosed shares / units	Disclosure context
Common StockSEC Table I · non-derivative	Direct	33,524,715	Reported balance After 2025-08-18 transaction · row 1 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 1 · 2025-08-18 · Sale · Disposed 8,407,643 · Balance 33,524,715 F1: Represents 5,148,494 shares sold by Summit Partners Growth Equity Fund IX-A, L.P., 3,214,648 shares sold by Summit Partners Growth Equity Fund IX-B, L.P., 35,938 shares sold by Summit Investors GE IX/VC IV, LLC, 4,804 shares sold by Summit Partners Entrepreneur Advisors Fund II, L.P. and 3,759 shares sold by Summit Investors GE IX/VC IV (UK), L.P. F2: The reported securities are held as follows: 20,529,149 shares in the name of Summit Partners Growth Equity Fund IX-A, L.P.; 12,818,117 shares in the name of Summit Partners Growth Equity Fund IX-B, L.P.; 143,301 shares in the name of Summit Investors GE IX/VC IV, LLC; 19,157 shares in the name of Summit Partners Entrepreneur Advisors Fund II, L.P.; and 14,991 shares in the name of Summit Investors GE IX/ VC IV (UK), L.P. F3: Summit Partners, L.P. is the managing member of Summit Partners GE IX, LLC, which is general partner of Summit Partners GE IX, L.P., which is the general partner of Summit Partners Growth Equity Fund IX-A, L.P. and Summit Partners Growth Equity Fund IX-B, L.P. Summit Master Company, LLC is (i) the sole member of Summit Partners Entrepreneur Advisors GP II, LLC, which is the general partner of Summit Partners Entrepreneur Advisors Fund II, L.P. and (ii) the general partner of Summit Partners L.P., which is the manager of Summit Investors Management, LLC, which is the manager of Summit Investors GE IX/VC IV, LLC, and the general partner of Summit Investors GE IX/VC IV (UK), L.P. F4: Summit Master Company, LLC, as the sole member of Summit Partners Entrepreneur Advisors GP II, LLC and the managing member of Summit Investors Management, LLC, has delegated investment decisions, including voting and dispositive power, to Summit Partners, L.P. and its investment committee responsible for voting and investment decisions with respect to LifeStance Health Group, Inc. Summit Partners, L.P., through a four-person investment committee, currently composed of Peter Y. Chung, Mark A. deLaar, Darren M. Black and Craig D. Frances, has voting and dispositive authority over the shares held by each of these entities and therefore beneficially owns such shares. Each of the Summit Funds, Mr. Chung, Mr. deLaar, Mr. Black and Dr. Frances disclaim beneficial ownership of the shares, except, in each case, to the extent of such person's or entity's pecuniary interest therein.

Filing footnotes · ownership attribution and instrument terms

F1: Represents 5,148,494 shares sold by Summit Partners Growth Equity Fund IX-A, L.P., 3,214,648 shares sold by Summit Partners Growth Equity Fund IX-B, L.P., 35,938 shares sold by Summit Investors GE IX/VC IV, LLC, 4,804 shares sold by Summit Partners Entrepreneur Advisors Fund II, L.P. and 3,759 shares sold by Summit Investors GE IX/VC IV (UK), L.P.

F2: The reported securities are held as follows: 20,529,149 shares in the name of Summit Partners Growth Equity Fund IX-A, L.P.; 12,818,117 shares in the name of Summit Partners Growth Equity Fund IX-B, L.P.; 143,301 shares in the name of Summit Investors GE IX/VC IV, LLC; 19,157 shares in the name of Summit Partners Entrepreneur Advisors Fund II, L.P.; and 14,991 shares in the name of Summit Investors GE IX/ VC IV (UK), L.P.

F3: Summit Partners, L.P. is the managing member of Summit Partners GE IX, LLC, which is general partner of Summit Partners GE IX, L.P., which is the general partner of Summit Partners Growth Equity Fund IX-A, L.P. and Summit Partners Growth Equity Fund IX-B, L.P. Summit Master Company, LLC is (i) the sole member of Summit Partners Entrepreneur Advisors GP II, LLC, which is the general partner of Summit Partners Entrepreneur Advisors Fund II, L.P. and (ii) the general partner of Summit Partners L.P., which is the manager of Summit Investors Management, LLC, which is the manager of Summit Investors GE IX/VC IV, LLC, and the general partner of Summit Investors GE IX/VC IV (UK), L.P.

F4: Summit Master Company, LLC, as the sole member of Summit Partners Entrepreneur Advisors GP II, LLC and the managing member of Summit Investors Management, LLC, has delegated investment decisions, including voting and dispositive power, to Summit Partners, L.P. and its investment committee responsible for voting and investment decisions with respect to LifeStance Health Group, Inc. Summit Partners, L.P., through a four-person investment committee, currently composed of Peter Y. Chung, Mark A. deLaar, Darren M. Black and Craig D. Frances, has voting and dispositive authority over the shares held by each of these entities and therefore beneficially owns such shares. Each of the Summit Funds, Mr. Chung, Mr. deLaar, Mr. Black and Dr. Frances disclaim beneficial ownership of the shares, except, in each case, to the extent of such person's or entity's pecuniary interest therein.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction date	Company	Activity / security	Shares / units	Reported price	Reported value	Details
August 11, 2026 Filed Aug 13, 2026 20:30 UTC	Klaviyo, Inc. KVYO · Entity 3775	ConversionSeries B Common Stock, par value $0.001 per share · Derivative	5,000,000	Not disclosed	Not disclosed	Disclosure SEC source: 0001193125-26-349311 · ownership.xml · derivative · entry 3 SUMMIT PARTNERS L P · CIK 0000830588 · 10% owner Summit Partners Growth Equity Fund IX-A, L.P. · CIK 0001634415 · 10% owner Summit Partners Growth Equity Fund IX-B, L.P. · CIK 0001634426 · 10% owner Summit Partners Co-Invest (Kiwi), LP · CIK 0001830877 · 10% owner SUMMIT INVESTORS GE IX/VC IV, LLC · CIK 0001654074 · 10% owner SUMMIT INVESTORS GE IX/VC IV (UK), L.P. · CIK 0001846709 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See footnotes Disclosed balance after: 13,852,778 Underlying: Series A Common Stock, par value $0.001 per share · 5,000,000 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation. F1 · price: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation. F1 · derivative.exercise_date: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation. F1 · derivative.expiration_date: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation. F5 · balance_after: Consists of (i) 8,187,302 shares of Series B Common Stock held by Fund IX-A, (ii) 5,112,037 shares of Series B Common Stock held by Fund IX-B, (iii) 504,825 shares of Series B Common Stock held by Kiwi Co-Invest Fund, (iv) 43,030 shares of Series B Common Stock held by Fund IX/VC IV, and (v) 5,584 shares of Series B Common Stock held by Fund IX/VC IV (UK). F2 · ownership.nature: Summit Partners, L.P. is the manager of Summit Partners GE IX, LLC, which is the general partner of Summit Partners GE IX, LP, which is the general partner of Summit Partners Growth Equity Fund IX-A, L.P. ("Fund IX-A") and Summit Partners Growth Equity Fund IX-B, L.P. ("Fund IX-B"). Summit Partners, L.P. is the managing member of Summit Partners Co-Invest Kiwi GP, LLC, which is the general partner of Summit Partners Co-Invest (Kiwi), L.P. ("Kiwi Co-Invest Fund"). Summit Master Company, LLC is the general partner of Summit Partners, L.P., which is the manager of Summit Investors Management, LLC, which is the manager of Summit Investors GE IX/VC IV, LLC ("Fund IX/VC IV") and the general partner of Summit Investors GE IX/VC IV (UK), L.P. ("Fund IX/VC IV (UK)"). F3 · ownership.nature: (continued from footnote 2) Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC, has delegated voting and investment decisions with respect to the securities held by Fund IX/VC IV and Fund IX/VC IV (UK) to Summit Partners, L.P. F4 · ownership.nature: The investment committee of Summit Partners, L.P., is currently composed of Peter Y. Chung, Scott C. Collins, and Peter L. Rottier, who may be deemed to have voting and dispositive authority over, and therefore beneficial ownership of, the reported securities. Each of the foregoing entities, Mr. Chung, Mr. Collins, and Mr. Rottier disclaims beneficial ownership of the shares, except to the extent of such person's or entity's pecuniary interest therein and the filing of this statement shall not be deemed an admission that any of the foregoing entities or persons are, for purposes of Section 16 of the Act or otherwise, the beneficial owner of any equity securities covered by this statement. Read SEC document
August 11, 2026 Filed Aug 13, 2026 20:30 UTC	Klaviyo, Inc. KVYO · Entity 3775	SaleSeries A Common Stock, par value $0.001 per share	5,000,000	$17.71	$88,550,000.00	Disclosure SEC source: 0001193125-26-349311 · ownership.xml · nonDerivative · entry 2 SUMMIT PARTNERS L P · CIK 0000830588 · 10% owner Summit Partners Growth Equity Fund IX-A, L.P. · CIK 0001634415 · 10% owner Summit Partners Growth Equity Fund IX-B, L.P. · CIK 0001634426 · 10% owner Summit Partners Co-Invest (Kiwi), LP · CIK 0001830877 · 10% owner SUMMIT INVESTORS GE IX/VC IV, LLC · CIK 0001654074 · 10% owner SUMMIT INVESTORS GE IX/VC IV (UK), L.P. · CIK 0001846709 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See footnotes Disclosed balance after: 0 F2 · ownership.nature: Summit Partners, L.P. is the manager of Summit Partners GE IX, LLC, which is the general partner of Summit Partners GE IX, LP, which is the general partner of Summit Partners Growth Equity Fund IX-A, L.P. ("Fund IX-A") and Summit Partners Growth Equity Fund IX-B, L.P. ("Fund IX-B"). Summit Partners, L.P. is the managing member of Summit Partners Co-Invest Kiwi GP, LLC, which is the general partner of Summit Partners Co-Invest (Kiwi), L.P. ("Kiwi Co-Invest Fund"). Summit Master Company, LLC is the general partner of Summit Partners, L.P., which is the manager of Summit Investors Management, LLC, which is the manager of Summit Investors GE IX/VC IV, LLC ("Fund IX/VC IV") and the general partner of Summit Investors GE IX/VC IV (UK), L.P. ("Fund IX/VC IV (UK)"). F3 · ownership.nature: (continued from footnote 2) Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC, has delegated voting and investment decisions with respect to the securities held by Fund IX/VC IV and Fund IX/VC IV (UK) to Summit Partners, L.P. F4 · ownership.nature: The investment committee of Summit Partners, L.P., is currently composed of Peter Y. Chung, Scott C. Collins, and Peter L. Rottier, who may be deemed to have voting and dispositive authority over, and therefore beneficial ownership of, the reported securities. Each of the foregoing entities, Mr. Chung, Mr. Collins, and Mr. Rottier disclaims beneficial ownership of the shares, except to the extent of such person's or entity's pecuniary interest therein and the filing of this statement shall not be deemed an admission that any of the foregoing entities or persons are, for purposes of Section 16 of the Act or otherwise, the beneficial owner of any equity securities covered by this statement. Read SEC document
August 11, 2026 Filed Aug 13, 2026 20:30 UTC	Klaviyo, Inc. KVYO · Entity 3775	ConversionSeries A Common Stock, par value $0.001 per share	5,000,000	Not disclosed	Not disclosed	Disclosure SEC source: 0001193125-26-349311 · ownership.xml · nonDerivative · entry 1 SUMMIT PARTNERS L P · CIK 0000830588 · 10% owner Summit Partners Growth Equity Fund IX-A, L.P. · CIK 0001634415 · 10% owner Summit Partners Growth Equity Fund IX-B, L.P. · CIK 0001634426 · 10% owner Summit Partners Co-Invest (Kiwi), LP · CIK 0001830877 · 10% owner SUMMIT INVESTORS GE IX/VC IV, LLC · CIK 0001654074 · 10% owner SUMMIT INVESTORS GE IX/VC IV (UK), L.P. · CIK 0001846709 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See footnotes Disclosed balance after: 5,000,000 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation. F2 · ownership.nature: Summit Partners, L.P. is the manager of Summit Partners GE IX, LLC, which is the general partner of Summit Partners GE IX, LP, which is the general partner of Summit Partners Growth Equity Fund IX-A, L.P. ("Fund IX-A") and Summit Partners Growth Equity Fund IX-B, L.P. ("Fund IX-B"). Summit Partners, L.P. is the managing member of Summit Partners Co-Invest Kiwi GP, LLC, which is the general partner of Summit Partners Co-Invest (Kiwi), L.P. ("Kiwi Co-Invest Fund"). Summit Master Company, LLC is the general partner of Summit Partners, L.P., which is the manager of Summit Investors Management, LLC, which is the manager of Summit Investors GE IX/VC IV, LLC ("Fund IX/VC IV") and the general partner of Summit Investors GE IX/VC IV (UK), L.P. ("Fund IX/VC IV (UK)"). F3 · ownership.nature: (continued from footnote 2) Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC, has delegated voting and investment decisions with respect to the securities held by Fund IX/VC IV and Fund IX/VC IV (UK) to Summit Partners, L.P. F4 · ownership.nature: The investment committee of Summit Partners, L.P., is currently composed of Peter Y. Chung, Scott C. Collins, and Peter L. Rottier, who may be deemed to have voting and dispositive authority over, and therefore beneficial ownership of, the reported securities. Each of the foregoing entities, Mr. Chung, Mr. Collins, and Mr. Rottier disclaims beneficial ownership of the shares, except to the extent of such person's or entity's pecuniary interest therein and the filing of this statement shall not be deemed an admission that any of the foregoing entities or persons are, for purposes of Section 16 of the Act or otherwise, the beneficial owner of any equity securities covered by this statement. Read SEC document
January 01, 2026 Filed Jan 5, 2026 21:05 UTC	Solo Brands, Inc. SBDS · Entity 8034	ConversionCommon Units · Derivative	354,189	$0.00	$0.00	Disclosure SEC source: 0001193125-26-002394 · ownership.xml · derivative · entry 3 SUMMIT PARTNERS L P · CIK 0000830588 · 10% owner Summit Partners Growth Equity Fund X-A, L.P. · CIK 0001757901 · 10% owner Summit Partners Growth Equity Fund X-B, L.P. · CIK 0001757905 · 10% owner Summit Partners Growth Equity Fund X-C, L.P. · CIK 0001764048 · 10% owner SUMMIT INVESTORS X, LLC · CIK 0001777794 · 10% owner SUMMIT INVESTORS X (UK), L.P. · CIK 0001848077 · 10% owner Summit Partners Subordinated Debt Fund V-A, L.P. · CIK 0001717868 · 10% owner Summit Partners Subordinated Debt Fund V-B, L.P. · CIK 0001717713 · 10% owner SP-SS AGGREGATOR LLC · CIK 0001889449 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See Footnotes Disclosed balance after: 0 Underlying: Class A Common Stock · 354,189 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: On December 17, 2025, the Issuer entered into an Agreement and Plan of Merger (the "Merger Agreement") with its subsidiaries Solo Stove Holdings, LLC ("Holdings") and Solo Merger Sub LLC ("Merger Sub"), whereby effective January 1, 2026, Merger Sub merged with and into Holdings, with Holdings continuing as the surviving entity as a wholly owned subsidiary of the Issuer (the "Merger"). Pursuant to the Merger Agreement, on January 1, 2026, each of the issued and outstanding common membership interests in Holdings beneficially owned by members of Holdings was cancelled and converted automatically into a right to receive one share of Class A Common Stock. In addition, immediately following the effective time of the Merger, all of the issued and outstanding shares of Class B Common Stock were retired and cancelled in accordance with the Issuer's Amended and Restated Certificate of Incorporation and Holdings' Amended and Restated Limited Liability Company Agreement. F1 · kind: On December 17, 2025, the Issuer entered into an Agreement and Plan of Merger (the "Merger Agreement") with its subsidiaries Solo Stove Holdings, LLC ("Holdings") and Solo Merger Sub LLC ("Merger Sub"), whereby effective January 1, 2026, Merger Sub merged with and into Holdings, with Holdings continuing as the surviving entity as a wholly owned subsidiary of the Issuer (the "Merger"). Pursuant to the Merger Agreement, on January 1, 2026, each of the issued and outstanding common membership interests in Holdings beneficially owned by members of Holdings was cancelled and converted automatically into a right to receive one share of Class A Common Stock. In addition, immediately following the effective time of the Merger, all of the issued and outstanding shares of Class B Common Stock were retired and cancelled in accordance with the Issuer's Amended and Restated Certificate of Incorporation and Holdings' Amended and Restated Limited Liability Company Agreement. F1 · derivative.exercise_date: On December 17, 2025, the Issuer entered into an Agreement and Plan of Merger (the "Merger Agreement") with its subsidiaries Solo Stove Holdings, LLC ("Holdings") and Solo Merger Sub LLC ("Merger Sub"), whereby effective January 1, 2026, Merger Sub merged with and into Holdings, with Holdings continuing as the surviving entity as a wholly owned subsidiary of the Issuer (the "Merger"). Pursuant to the Merger Agreement, on January 1, 2026, each of the issued and outstanding common membership interests in Holdings beneficially owned by members of Holdings was cancelled and converted automatically into a right to receive one share of Class A Common Stock. In addition, immediately following the effective time of the Merger, all of the issued and outstanding shares of Class B Common Stock were retired and cancelled in accordance with the Issuer's Amended and Restated Certificate of Incorporation and Holdings' Amended and Restated Limited Liability Company Agreement. F1 · derivative.expiration_date: On December 17, 2025, the Issuer entered into an Agreement and Plan of Merger (the "Merger Agreement") with its subsidiaries Solo Stove Holdings, LLC ("Holdings") and Solo Merger Sub LLC ("Merger Sub"), whereby effective January 1, 2026, Merger Sub merged with and into Holdings, with Holdings continuing as the surviving entity as a wholly owned subsidiary of the Issuer (the "Merger"). Pursuant to the Merger Agreement, on January 1, 2026, each of the issued and outstanding common membership interests in Holdings beneficially owned by members of Holdings was cancelled and converted automatically into a right to receive one share of Class A Common Stock. In addition, immediately following the effective time of the Merger, all of the issued and outstanding shares of Class B Common Stock were retired and cancelled in accordance with the Issuer's Amended and Restated Certificate of Incorporation and Holdings' Amended and Restated Limited Liability Company Agreement. F2 · ownership.nature: Represents 282,623, 431,780, 11,657, 14,227, 5,029, 1,268, 97 and 354,189 shares of Class A Common Stock held directly by Summit Partners Growth Equity Fund X-A, L.P., Summit Partners Growth Equity Fund X-B, L.P., Summit Partners Growth Equity Fund X-C, L.P., Summit Partners Subordinated Debt Fund V-A, L.P., Summit Partners Subordinated Debt Fund V-B, L.P., Summit Investors X, LLC, Summit Investors X (UK), L.P. and SP-SS Aggregator LLC, respectively. Summit Partners, L.P. is the managing member of Summit Partners GE X, LLC, which is the general partner of Summit Partners GE X, L.P., the general partner of each of Summit Partners Growth Equity Fund X-A, L.P., Summit Partners Growth Equity Fund X-B, L.P., and Summit Partners Growth Equity Fund X-C, L.P. Summit Partners, L.P. also is the managing member of Summit Partners SD V, LLC, which is the general partner of Summit Partners SD V, L.P., F3 · ownership.nature: (continued from footnote 2) the general partner of each of Summit Partners Subordinated Debt Fund V-A, L.P. and Summit Partners Subordinated Debt Fund V-B, L.P. Summit Master Company, LLC is the sole managing member of Summit Investors Management, LLC, which is (A) the manager of Summit Investors X, LLC, and (B) the general partner of Summit Investors X (UK), L.P. Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC, has delegated investment decisions, including voting and dispositive power, to Summit Partners, L.P. and its Investment Committee. SP-SS Aggregator LLC is managed by a manager appointed by the members holding a majority of the interests of the entity, which manager is currently designated to be Summit Partners Growth Equity Fund X-A, L.P. Read SEC document
January 01, 2026 Filed Jan 5, 2026 21:05 UTC	Solo Brands, Inc. SBDS · Entity 8034	OtherClass B Common Stock, $0.001 par value per share	354,189	Not disclosed	Not disclosed	Disclosure SEC source: 0001193125-26-002394 · ownership.xml · nonDerivative · entry 2 SUMMIT PARTNERS L P · CIK 0000830588 · 10% owner Summit Partners Growth Equity Fund X-A, L.P. · CIK 0001757901 · 10% owner Summit Partners Growth Equity Fund X-B, L.P. · CIK 0001757905 · 10% owner Summit Partners Growth Equity Fund X-C, L.P. · CIK 0001764048 · 10% owner SUMMIT INVESTORS X, LLC · CIK 0001777794 · 10% owner SUMMIT INVESTORS X (UK), L.P. · CIK 0001848077 · 10% owner Summit Partners Subordinated Debt Fund V-A, L.P. · CIK 0001717868 · 10% owner Summit Partners Subordinated Debt Fund V-B, L.P. · CIK 0001717713 · 10% owner SP-SS AGGREGATOR LLC · CIK 0001889449 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See Footnotes Disclosed balance after: 0 F1 · security: On December 17, 2025, the Issuer entered into an Agreement and Plan of Merger (the "Merger Agreement") with its subsidiaries Solo Stove Holdings, LLC ("Holdings") and Solo Merger Sub LLC ("Merger Sub"), whereby effective January 1, 2026, Merger Sub merged with and into Holdings, with Holdings continuing as the surviving entity as a wholly owned subsidiary of the Issuer (the "Merger"). Pursuant to the Merger Agreement, on January 1, 2026, each of the issued and outstanding common membership interests in Holdings beneficially owned by members of Holdings was cancelled and converted automatically into a right to receive one share of Class A Common Stock. In addition, immediately following the effective time of the Merger, all of the issued and outstanding shares of Class B Common Stock were retired and cancelled in accordance with the Issuer's Amended and Restated Certificate of Incorporation and Holdings' Amended and Restated Limited Liability Company Agreement. F1 · price: On December 17, 2025, the Issuer entered into an Agreement and Plan of Merger (the "Merger Agreement") with its subsidiaries Solo Stove Holdings, LLC ("Holdings") and Solo Merger Sub LLC ("Merger Sub"), whereby effective January 1, 2026, Merger Sub merged with and into Holdings, with Holdings continuing as the surviving entity as a wholly owned subsidiary of the Issuer (the "Merger"). Pursuant to the Merger Agreement, on January 1, 2026, each of the issued and outstanding common membership interests in Holdings beneficially owned by members of Holdings was cancelled and converted automatically into a right to receive one share of Class A Common Stock. In addition, immediately following the effective time of the Merger, all of the issued and outstanding shares of Class B Common Stock were retired and cancelled in accordance with the Issuer's Amended and Restated Certificate of Incorporation and Holdings' Amended and Restated Limited Liability Company Agreement. F2 · ownership.nature: Represents 282,623, 431,780, 11,657, 14,227, 5,029, 1,268, 97 and 354,189 shares of Class A Common Stock held directly by Summit Partners Growth Equity Fund X-A, L.P., Summit Partners Growth Equity Fund X-B, L.P., Summit Partners Growth Equity Fund X-C, L.P., Summit Partners Subordinated Debt Fund V-A, L.P., Summit Partners Subordinated Debt Fund V-B, L.P., Summit Investors X, LLC, Summit Investors X (UK), L.P. and SP-SS Aggregator LLC, respectively. Summit Partners, L.P. is the managing member of Summit Partners GE X, LLC, which is the general partner of Summit Partners GE X, L.P., the general partner of each of Summit Partners Growth Equity Fund X-A, L.P., Summit Partners Growth Equity Fund X-B, L.P., and Summit Partners Growth Equity Fund X-C, L.P. Summit Partners, L.P. also is the managing member of Summit Partners SD V, LLC, which is the general partner of Summit Partners SD V, L.P., F3 · ownership.nature: (continued from footnote 2) the general partner of each of Summit Partners Subordinated Debt Fund V-A, L.P. and Summit Partners Subordinated Debt Fund V-B, L.P. Summit Master Company, LLC is the sole managing member of Summit Investors Management, LLC, which is (A) the manager of Summit Investors X, LLC, and (B) the general partner of Summit Investors X (UK), L.P. Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC, has delegated investment decisions, including voting and dispositive power, to Summit Partners, L.P. and its Investment Committee. SP-SS Aggregator LLC is managed by a manager appointed by the members holding a majority of the interests of the entity, which manager is currently designated to be Summit Partners Growth Equity Fund X-A, L.P. Read SEC document
January 01, 2026 Filed Jan 5, 2026 21:05 UTC	Solo Brands, Inc. SBDS · Entity 8034	ConversionClass A Common Stock, $0.001 par value per share	354,189	Not disclosed	Not disclosed	Disclosure SEC source: 0001193125-26-002394 · ownership.xml · nonDerivative · entry 1 SUMMIT PARTNERS L P · CIK 0000830588 · 10% owner Summit Partners Growth Equity Fund X-A, L.P. · CIK 0001757901 · 10% owner Summit Partners Growth Equity Fund X-B, L.P. · CIK 0001757905 · 10% owner Summit Partners Growth Equity Fund X-C, L.P. · CIK 0001764048 · 10% owner SUMMIT INVESTORS X, LLC · CIK 0001777794 · 10% owner SUMMIT INVESTORS X (UK), L.P. · CIK 0001848077 · 10% owner Summit Partners Subordinated Debt Fund V-A, L.P. · CIK 0001717868 · 10% owner Summit Partners Subordinated Debt Fund V-B, L.P. · CIK 0001717713 · 10% owner SP-SS AGGREGATOR LLC · CIK 0001889449 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See Footnotes Disclosed balance after: 1,100,870 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: On December 17, 2025, the Issuer entered into an Agreement and Plan of Merger (the "Merger Agreement") with its subsidiaries Solo Stove Holdings, LLC ("Holdings") and Solo Merger Sub LLC ("Merger Sub"), whereby effective January 1, 2026, Merger Sub merged with and into Holdings, with Holdings continuing as the surviving entity as a wholly owned subsidiary of the Issuer (the "Merger"). Pursuant to the Merger Agreement, on January 1, 2026, each of the issued and outstanding common membership interests in Holdings beneficially owned by members of Holdings was cancelled and converted automatically into a right to receive one share of Class A Common Stock. In addition, immediately following the effective time of the Merger, all of the issued and outstanding shares of Class B Common Stock were retired and cancelled in accordance with the Issuer's Amended and Restated Certificate of Incorporation and Holdings' Amended and Restated Limited Liability Company Agreement. F2 · ownership.nature: Represents 282,623, 431,780, 11,657, 14,227, 5,029, 1,268, 97 and 354,189 shares of Class A Common Stock held directly by Summit Partners Growth Equity Fund X-A, L.P., Summit Partners Growth Equity Fund X-B, L.P., Summit Partners Growth Equity Fund X-C, L.P., Summit Partners Subordinated Debt Fund V-A, L.P., Summit Partners Subordinated Debt Fund V-B, L.P., Summit Investors X, LLC, Summit Investors X (UK), L.P. and SP-SS Aggregator LLC, respectively. Summit Partners, L.P. is the managing member of Summit Partners GE X, LLC, which is the general partner of Summit Partners GE X, L.P., the general partner of each of Summit Partners Growth Equity Fund X-A, L.P., Summit Partners Growth Equity Fund X-B, L.P., and Summit Partners Growth Equity Fund X-C, L.P. Summit Partners, L.P. also is the managing member of Summit Partners SD V, LLC, which is the general partner of Summit Partners SD V, L.P., F3 · ownership.nature: (continued from footnote 2) the general partner of each of Summit Partners Subordinated Debt Fund V-A, L.P. and Summit Partners Subordinated Debt Fund V-B, L.P. Summit Master Company, LLC is the sole managing member of Summit Investors Management, LLC, which is (A) the manager of Summit Investors X, LLC, and (B) the general partner of Summit Investors X (UK), L.P. Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC, has delegated investment decisions, including voting and dispositive power, to Summit Partners, L.P. and its Investment Committee. SP-SS Aggregator LLC is managed by a manager appointed by the members holding a majority of the interests of the entity, which manager is currently designated to be Summit Partners Growth Equity Fund X-A, L.P. Read SEC document
September 08, 2025 Filed Sep 10, 2025 20:15 UTC	Klaviyo, Inc. KVYO · Entity 3775	ConversionSeries B Common Stock, par value $0.001 per share · Derivative	4,000,000	$0.00	$0.00	Disclosure SEC source: 0000950170-25-113988 · ownership.xml · derivative · entry 3 SUMMIT PARTNERS L P · CIK 0000830588 · 10% owner Summit Partners Growth Equity Fund IX-A, L.P. · CIK 0001634415 · 10% owner Summit Partners Growth Equity Fund IX-B, L.P. · CIK 0001634426 · 10% owner Summit Partners Co-Invest (Kiwi), LP · CIK 0001830877 · 10% owner SUMMIT INVESTORS GE IX/VC IV, LLC · CIK 0001654074 · 10% owner SUMMIT INVESTORS GE IX/VC IV (UK), L.P. · CIK 0001846709 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See footnotes Disclosed balance after: 18,852,778 Underlying: Series A Common Stock, par value $0.001 per share · 4,000,000 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation. F1 · derivative.exercise_date: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation. F1 · derivative.expiration_date: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation. F5 · balance_after: Consists of (i) 11,142,414 shares of Series B Common Stock held by Fund IX-A, (ii) 6,957,168 shares of Series B Common Stock held by Fund IX-B, (iii) 687,035 shares of Series B Common Stock held by Kiwi Co-Invest Fund, (iv) 58,561 shares of Series B Common Stock held by Fund IX/VC IV, and (v) 7,600 shares of Series B Common Stock held by Fund IX/VC IV (UK). F2 · ownership.nature: Summit Partners, L.P. is the manager of Summit Partners GE IX, LLC, which is the general partner of Summit Partners GE IX, LP, which is the general partner of Summit Partners Growth Equity Fund IX-A, L.P. ("Fund IX-A") and Summit Partners Growth Equity Fund IX-B, L.P. ("Fund IX-B"). Summit Partners, L.P. is the managing member of Summit Partners Co-Invest Kiwi GP, LLC, which is the general partner of Summit Partners Co-Invest (Kiwi), L.P. ("Kiwi Co-Invest Fund"). Summit Master Company, LLC is the general partner of Summit Partners, L.P., which is the manager of Summit Investors Management, LLC, which is the manager of Summit Investors GE IX/VC IV, LLC ("Fund IX/VC IV") and the general partner of Summit Investors GE IX/VC IV (UK), L.P. ("Fund IX/VC IV (UK)"). F3 · ownership.nature: (continued from footnote 2) Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC, has delegated voting and investment decisions with respect to the securities held by Fund IX/VC IV and Fund IX/VC IV (UK) to Summit Partners, L.P. F4 · ownership.nature: The investment committee of Summit Partners, L.P., is currently composed of Peter Y. Chung, Scott C. Collins, and Peter L. Rottier, who may be deemed to have voting and dispositive authority over, and therefore beneficial ownership of, the reported securities. Each of the foregoing entities, Mr. Chung, Mr. Collins, and Mr. Rottier disclaims beneficial ownership of the shares, except to the extent of such person's or entity's pecuniary interest therein and the filing of this statement shall not be deemed an admission that any of the foregoing entities or persons are, for purposes of Section 16 of the Act or otherwise, the beneficial owner of any equity securities covered by this statement. Read SEC document
September 08, 2025 Filed Sep 10, 2025 20:15 UTC	Klaviyo, Inc. KVYO · Entity 3775	SaleSeries A Common Stock, par value $0.001 per share	4,000,000	$31.87	$127,480,000.00	Disclosure SEC source: 0000950170-25-113988 · ownership.xml · nonDerivative · entry 2 SUMMIT PARTNERS L P · CIK 0000830588 · 10% owner Summit Partners Growth Equity Fund IX-A, L.P. · CIK 0001634415 · 10% owner Summit Partners Growth Equity Fund IX-B, L.P. · CIK 0001634426 · 10% owner Summit Partners Co-Invest (Kiwi), LP · CIK 0001830877 · 10% owner SUMMIT INVESTORS GE IX/VC IV, LLC · CIK 0001654074 · 10% owner SUMMIT INVESTORS GE IX/VC IV (UK), L.P. · CIK 0001846709 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See footnotes Disclosed balance after: 0 F2 · ownership.nature: Summit Partners, L.P. is the manager of Summit Partners GE IX, LLC, which is the general partner of Summit Partners GE IX, LP, which is the general partner of Summit Partners Growth Equity Fund IX-A, L.P. ("Fund IX-A") and Summit Partners Growth Equity Fund IX-B, L.P. ("Fund IX-B"). Summit Partners, L.P. is the managing member of Summit Partners Co-Invest Kiwi GP, LLC, which is the general partner of Summit Partners Co-Invest (Kiwi), L.P. ("Kiwi Co-Invest Fund"). Summit Master Company, LLC is the general partner of Summit Partners, L.P., which is the manager of Summit Investors Management, LLC, which is the manager of Summit Investors GE IX/VC IV, LLC ("Fund IX/VC IV") and the general partner of Summit Investors GE IX/VC IV (UK), L.P. ("Fund IX/VC IV (UK)"). F3 · ownership.nature: (continued from footnote 2) Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC, has delegated voting and investment decisions with respect to the securities held by Fund IX/VC IV and Fund IX/VC IV (UK) to Summit Partners, L.P. F4 · ownership.nature: The investment committee of Summit Partners, L.P., is currently composed of Peter Y. Chung, Scott C. Collins, and Peter L. Rottier, who may be deemed to have voting and dispositive authority over, and therefore beneficial ownership of, the reported securities. Each of the foregoing entities, Mr. Chung, Mr. Collins, and Mr. Rottier disclaims beneficial ownership of the shares, except to the extent of such person's or entity's pecuniary interest therein and the filing of this statement shall not be deemed an admission that any of the foregoing entities or persons are, for purposes of Section 16 of the Act or otherwise, the beneficial owner of any equity securities covered by this statement. Read SEC document
September 08, 2025 Filed Sep 10, 2025 20:15 UTC	Klaviyo, Inc. KVYO · Entity 3775	ConversionSeries A Common Stock, par value $0.001 per share	4,000,000	Not disclosed	Not disclosed	Disclosure SEC source: 0000950170-25-113988 · ownership.xml · nonDerivative · entry 1 SUMMIT PARTNERS L P · CIK 0000830588 · 10% owner Summit Partners Growth Equity Fund IX-A, L.P. · CIK 0001634415 · 10% owner Summit Partners Growth Equity Fund IX-B, L.P. · CIK 0001634426 · 10% owner Summit Partners Co-Invest (Kiwi), LP · CIK 0001830877 · 10% owner SUMMIT INVESTORS GE IX/VC IV, LLC · CIK 0001654074 · 10% owner SUMMIT INVESTORS GE IX/VC IV (UK), L.P. · CIK 0001846709 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See footnotes Disclosed balance after: 4,000,000 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation. F2 · ownership.nature: Summit Partners, L.P. is the manager of Summit Partners GE IX, LLC, which is the general partner of Summit Partners GE IX, LP, which is the general partner of Summit Partners Growth Equity Fund IX-A, L.P. ("Fund IX-A") and Summit Partners Growth Equity Fund IX-B, L.P. ("Fund IX-B"). Summit Partners, L.P. is the managing member of Summit Partners Co-Invest Kiwi GP, LLC, which is the general partner of Summit Partners Co-Invest (Kiwi), L.P. ("Kiwi Co-Invest Fund"). Summit Master Company, LLC is the general partner of Summit Partners, L.P., which is the manager of Summit Investors Management, LLC, which is the manager of Summit Investors GE IX/VC IV, LLC ("Fund IX/VC IV") and the general partner of Summit Investors GE IX/VC IV (UK), L.P. ("Fund IX/VC IV (UK)"). F3 · ownership.nature: (continued from footnote 2) Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC, has delegated voting and investment decisions with respect to the securities held by Fund IX/VC IV and Fund IX/VC IV (UK) to Summit Partners, L.P. F4 · ownership.nature: The investment committee of Summit Partners, L.P., is currently composed of Peter Y. Chung, Scott C. Collins, and Peter L. Rottier, who may be deemed to have voting and dispositive authority over, and therefore beneficial ownership of, the reported securities. Each of the foregoing entities, Mr. Chung, Mr. Collins, and Mr. Rottier disclaims beneficial ownership of the shares, except to the extent of such person's or entity's pecuniary interest therein and the filing of this statement shall not be deemed an admission that any of the foregoing entities or persons are, for purposes of Section 16 of the Act or otherwise, the beneficial owner of any equity securities covered by this statement. Read SEC document
August 25, 2025 Filed Aug 27, 2025 20:05 UTC	Klaviyo, Inc. KVYO · Entity 3775	ConversionSeries B Common Stock, par value $0.001 per share · Derivative	975,000	$0.00	$0.00	Disclosure SEC source: 0001415889-25-023115 · form4-08272025_080802.xml · derivative · entry 3 SUMMIT PARTNERS L P · CIK 0000830588 · 10% owner Summit Partners Growth Equity Fund IX-A, L.P. · CIK 0001634415 · 10% owner Summit Partners Growth Equity Fund IX-B, L.P. · CIK 0001634426 · 10% owner Summit Partners Co-Invest (Kiwi), LP · CIK 0001830877 · 10% owner SUMMIT INVESTORS GE IX/VC IV, LLC · CIK 0001654074 · 10% owner SUMMIT INVESTORS GE IX/VC IV (UK), L.P. · CIK 0001846709 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See footnote Disclosed balance after: 22,852,778 Underlying: Series A Common Stock, par value $0.001 per share · 975,000 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation. F1 · derivative.exercise_date: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation. F1 · derivative.expiration_date: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation. F5 · balance_after: Consists of (i) 13,506,504 shares of Series B Common Stock held by Fund IX-A, (ii) 8,433,272 shares of Series B Common Stock held by Fund IX-B, (iii) 832,803 shares of Series B Common Stock held by Kiwi Co-Invest Fund, (iv) 70,986 shares of Series B Common Stock held by Fund IX/VC IV, and (v) 9,213 shares of Series B Common Stock held by Fund IX/VC IV (UK). F2 · ownership.nature: Summit Partners, L.P. is the manager of Summit Partners GE IX, LLC, which is the general partner of Summit Partners GE IX, LP, which is the general partner of Summit Partners Growth Equity Fund IX-A, L.P. ("Fund IX-A") and Summit Partners Growth Equity Fund IX-B, L.P. ("Fund IX-B"). Summit Partners, L.P. is the managing member of Summit Partners Co-Invest Kiwi GP, LLC, which is the general partner of Summit Partners Co-Invest (Kiwi), L.P. ("Kiwi Co-Invest Fund"). Summit Master Company, LLC is the general partner of Summit Partners, L.P., which is the manager of Summit Investors Management, LLC, which is the manager of Summit Investors GE IX/VC IV, LLC ("Fund IX/VC IV") and the general partner of Summit Investors GE IX/VC IV (UK), L.P. ("Fund IX/VC IV (UK)"). F3 · ownership.nature: (continued from footnote 2) Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC, has delegated voting and investment decisions with respect to the securities held by Fund IX/VC IV and Fund IX/VC IV (UK) to Summit Partners, L.P. F4 · ownership.nature: The investment committee of Summit Partners, L.P., is currently composed of Peter Y. Chung, Scott C. Collins, and Peter L. Rottier, who may be deemed to have voting and dispositive authority over, and therefore beneficial ownership of, the reported securities. Each of the foregoing entities, Mr. Chung, Mr. Collins, and Mr. Rottier disclaims beneficial ownership of the shares, except to the extent of such person's or entity's pecuniary interest therein and the filing of this statement shall not be deemed an admission that any of the foregoing entities or persons are, for purposes of Section 16 of the Act or otherwise, the beneficial owner of any equity securities covered by this statement. Read SEC document
August 25, 2025 Filed Aug 27, 2025 20:05 UTC	Klaviyo, Inc. KVYO · Entity 3775	SaleSeries A Common Stock, par value $0.001 per share	975,000	$30.01	$29,259,750.00	Disclosure SEC source: 0001415889-25-023115 · form4-08272025_080802.xml · nonDerivative · entry 2 SUMMIT PARTNERS L P · CIK 0000830588 · 10% owner Summit Partners Growth Equity Fund IX-A, L.P. · CIK 0001634415 · 10% owner Summit Partners Growth Equity Fund IX-B, L.P. · CIK 0001634426 · 10% owner Summit Partners Co-Invest (Kiwi), LP · CIK 0001830877 · 10% owner SUMMIT INVESTORS GE IX/VC IV, LLC · CIK 0001654074 · 10% owner SUMMIT INVESTORS GE IX/VC IV (UK), L.P. · CIK 0001846709 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See footnote Disclosed balance after: 0 F2 · ownership.nature: Summit Partners, L.P. is the manager of Summit Partners GE IX, LLC, which is the general partner of Summit Partners GE IX, LP, which is the general partner of Summit Partners Growth Equity Fund IX-A, L.P. ("Fund IX-A") and Summit Partners Growth Equity Fund IX-B, L.P. ("Fund IX-B"). Summit Partners, L.P. is the managing member of Summit Partners Co-Invest Kiwi GP, LLC, which is the general partner of Summit Partners Co-Invest (Kiwi), L.P. ("Kiwi Co-Invest Fund"). Summit Master Company, LLC is the general partner of Summit Partners, L.P., which is the manager of Summit Investors Management, LLC, which is the manager of Summit Investors GE IX/VC IV, LLC ("Fund IX/VC IV") and the general partner of Summit Investors GE IX/VC IV (UK), L.P. ("Fund IX/VC IV (UK)"). F3 · ownership.nature: (continued from footnote 2) Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC, has delegated voting and investment decisions with respect to the securities held by Fund IX/VC IV and Fund IX/VC IV (UK) to Summit Partners, L.P. F4 · ownership.nature: The investment committee of Summit Partners, L.P., is currently composed of Peter Y. Chung, Scott C. Collins, and Peter L. Rottier, who may be deemed to have voting and dispositive authority over, and therefore beneficial ownership of, the reported securities. Each of the foregoing entities, Mr. Chung, Mr. Collins, and Mr. Rottier disclaims beneficial ownership of the shares, except to the extent of such person's or entity's pecuniary interest therein and the filing of this statement shall not be deemed an admission that any of the foregoing entities or persons are, for purposes of Section 16 of the Act or otherwise, the beneficial owner of any equity securities covered by this statement. Read SEC document
August 25, 2025 Filed Aug 27, 2025 20:05 UTC	Klaviyo, Inc. KVYO · Entity 3775	ConversionSeries A Common Stock, par value $0.001 per share	975,000	Not disclosed	Not disclosed	Disclosure SEC source: 0001415889-25-023115 · form4-08272025_080802.xml · nonDerivative · entry 1 SUMMIT PARTNERS L P · CIK 0000830588 · 10% owner Summit Partners Growth Equity Fund IX-A, L.P. · CIK 0001634415 · 10% owner Summit Partners Growth Equity Fund IX-B, L.P. · CIK 0001634426 · 10% owner Summit Partners Co-Invest (Kiwi), LP · CIK 0001830877 · 10% owner SUMMIT INVESTORS GE IX/VC IV, LLC · CIK 0001654074 · 10% owner SUMMIT INVESTORS GE IX/VC IV (UK), L.P. · CIK 0001846709 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See footnote Disclosed balance after: 975,000 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation. F2 · ownership.nature: Summit Partners, L.P. is the manager of Summit Partners GE IX, LLC, which is the general partner of Summit Partners GE IX, LP, which is the general partner of Summit Partners Growth Equity Fund IX-A, L.P. ("Fund IX-A") and Summit Partners Growth Equity Fund IX-B, L.P. ("Fund IX-B"). Summit Partners, L.P. is the managing member of Summit Partners Co-Invest Kiwi GP, LLC, which is the general partner of Summit Partners Co-Invest (Kiwi), L.P. ("Kiwi Co-Invest Fund"). Summit Master Company, LLC is the general partner of Summit Partners, L.P., which is the manager of Summit Investors Management, LLC, which is the manager of Summit Investors GE IX/VC IV, LLC ("Fund IX/VC IV") and the general partner of Summit Investors GE IX/VC IV (UK), L.P. ("Fund IX/VC IV (UK)"). F3 · ownership.nature: (continued from footnote 2) Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC, has delegated voting and investment decisions with respect to the securities held by Fund IX/VC IV and Fund IX/VC IV (UK) to Summit Partners, L.P. F4 · ownership.nature: The investment committee of Summit Partners, L.P., is currently composed of Peter Y. Chung, Scott C. Collins, and Peter L. Rottier, who may be deemed to have voting and dispositive authority over, and therefore beneficial ownership of, the reported securities. Each of the foregoing entities, Mr. Chung, Mr. Collins, and Mr. Rottier disclaims beneficial ownership of the shares, except to the extent of such person's or entity's pecuniary interest therein and the filing of this statement shall not be deemed an admission that any of the foregoing entities or persons are, for purposes of Section 16 of the Act or otherwise, the beneficial owner of any equity securities covered by this statement. Read SEC document
August 21, 2025 Filed Aug 22, 2025 20:12 UTC	Klaviyo, Inc. KVYO · Entity 3775	OtherSeries A Common Stock, par value $0.001 per share	500,000	$0.00	$0.00	Disclosure SEC source: 0000950170-25-110957 · ownership.xml · nonDerivative · entry 1 SUMMIT PARTNERS L P · CIK 0000830588 · 10% owner Summit Partners Growth Equity Fund IX-A, L.P. · CIK 0001634415 · 10% owner Summit Partners Growth Equity Fund IX-B, L.P. · CIK 0001634426 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See footnote Disclosed balance after: 0 F1 · kind: Represents a distribution of 307,809 shares of Series A common stock, par value $0.001 per share ("Series A Common Stock") held by Summit Partners Growth Equity Fund IX-A, L.P. ("Fund IX-A") and 192,191 shares of Series A Common Stock held by Summit Partners Growth Equity Fund IX-B, L.P. ("Fund IX-B"), in each case to facilitate bona fide charitable gifts. F2 · ownership.nature: Summit Partners, L.P. is the manager of Summit Partners GE IX, LLC, which is the general partner of Summit Partners GE IX, LP, which is the general partner of Fund IX-A and Fund IX-B. The investment committee of Summit Partners, L.P., is currently composed of Peter Y. Chung, Scott C. Collins, and Peter L. Rottier, who may be deemed to have voting and dispositive authority over, and therefore beneficial ownership of, the reported securities. Each of the foregoing entities, Mr. Chung, Mr. Collins, and Mr. Rottier disclaims beneficial ownership of the shares, except to the extent of such person's or entity's pecuniary interest therein and the filing of this statement shall not be deemed an admission that any of the foregoing entities or persons are, for purposes of Section 16 of the Act or otherwise, the beneficial owner of any equity securities covered by this statement. Read SEC document
August 18, 2025 Filed Aug 20, 2025 20:34 UTC	LifeStance Health Group, Inc. LFST · Entity 3936	SaleCommon Stock	8,407,643	$5.07	$42,626,750.01	Disclosure SEC source: 0001415889-25-022457 · form4-08202025_080825.xml · nonDerivative · entry 1 SUMMIT PARTNERS L P · CIK 0000830588 · 10% owner Summit Partners Growth Equity Fund IX-A, L.P. · CIK 0001634415 · shareholder Summit Partners Growth Equity Fund IX-B, L.P. · CIK 0001634426 · shareholder SUMMIT INVESTORS GE IX/VC IV, LLC · CIK 0001654074 · owner SUMMIT INVESTORS GE IX/VC IV (UK), L.P. · CIK 0001846709 · Owner Summit Partners Entrepreneur Advisors Fund II, L.P. · CIK 0001660981 · Owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 33,524,715 F1 · shares: Represents 5,148,494 shares sold by Summit Partners Growth Equity Fund IX-A, L.P., 3,214,648 shares sold by Summit Partners Growth Equity Fund IX-B, L.P., 35,938 shares sold by Summit Investors GE IX/VC IV, LLC, 4,804 shares sold by Summit Partners Entrepreneur Advisors Fund II, L.P. and 3,759 shares sold by Summit Investors GE IX/VC IV (UK), L.P. F2 · balance_after: The reported securities are held as follows: 20,529,149 shares in the name of Summit Partners Growth Equity Fund IX-A, L.P.; 12,818,117 shares in the name of Summit Partners Growth Equity Fund IX-B, L.P.; 143,301 shares in the name of Summit Investors GE IX/VC IV, LLC; 19,157 shares in the name of Summit Partners Entrepreneur Advisors Fund II, L.P.; and 14,991 shares in the name of Summit Investors GE IX/ VC IV (UK), L.P. F3 · ownership.direct: Summit Partners, L.P. is the managing member of Summit Partners GE IX, LLC, which is general partner of Summit Partners GE IX, L.P., which is the general partner of Summit Partners Growth Equity Fund IX-A, L.P. and Summit Partners Growth Equity Fund IX-B, L.P. Summit Master Company, LLC is (i) the sole member of Summit Partners Entrepreneur Advisors GP II, LLC, which is the general partner of Summit Partners Entrepreneur Advisors Fund II, L.P. and (ii) the general partner of Summit Partners L.P., which is the manager of Summit Investors Management, LLC, which is the manager of Summit Investors GE IX/VC IV, LLC, and the general partner of Summit Investors GE IX/VC IV (UK), L.P. F4 · ownership.direct: Summit Master Company, LLC, as the sole member of Summit Partners Entrepreneur Advisors GP II, LLC and the managing member of Summit Investors Management, LLC, has delegated investment decisions, including voting and dispositive power, to Summit Partners, L.P. and its investment committee responsible for voting and investment decisions with respect to LifeStance Health Group, Inc. Summit Partners, L.P., through a four-person investment committee, currently composed of Peter Y. Chung, Mark A. deLaar, Darren M. Black and Craig D. Frances, has voting and dispositive authority over the shares held by each of these entities and therefore beneficially owns such shares. Each of the Summit Funds, Mr. Chung, Mr. deLaar, Mr. Black and Dr. Frances disclaim beneficial ownership of the shares, except, in each case, to the extent of such person's or entity's pecuniary interest therein. Read SEC document
August 13, 2025 Filed Aug 15, 2025 20:17 UTC	Klaviyo, Inc. KVYO · Entity 3775	ConversionSeries B Common Stock, par value $0.001 per share · Derivative	7,000,000	$0.00	$0.00	Disclosure SEC source: 0000950170-25-109399 · ownership.xml · derivative · entry 3 SUMMIT PARTNERS L P · CIK 0000830588 · 10% owner Summit Partners Growth Equity Fund IX-A, L.P. · CIK 0001634415 · 10% owner Summit Partners Growth Equity Fund IX-B, L.P. · CIK 0001634426 · 10% owner Summit Partners Co-Invest (Kiwi), LP · CIK 0001830877 · 10% owner SUMMIT INVESTORS GE IX/VC IV, LLC · CIK 0001654074 · 10% owner SUMMIT INVESTORS GE IX/VC IV (UK), L.P. · CIK 0001846709 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See footnote Disclosed balance after: 23,827,778 Underlying: Series A Common Stock, par value $0.001 per share · 7,000,000 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation. F1 · derivative.exercise_date: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation. F1 · derivative.expiration_date: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation. F6 · balance_after: Consists of (i) 14,082,751 shares of Series B Common Stock held by Fund IX-A, (ii) 8,793,072 shares of Series B Common Stock held by Fund IX-B, (iii) 868,334 shares of Series B Common Stock held by Kiwi Co-Invest Fund, (iv) 74,015 shares of Series B Common Stock held by Fund IX/VC IV, and (v) 9,606 shares of Series B Common Stock held by Fund IX/VC IV (UK). F2 · ownership.nature: Summit Partners, L.P. is the manager of Summit Partners GE IX, LLC, which is the general partner of Summit Partners GE IX, LP, which is the general partner of Summit Partners Growth Equity Fund IX-A, L.P. ("Fund IX-A") and Summit Partners Growth Equity Fund IX-B, L.P. ("Fund IX-B"). Summit Partners, L.P. is the managing member of Summit Partners Co-Invest Kiwi GP, LLC, which is the general partner of Summit Partners Co-Invest (Kiwi), L.P. ("Kiwi Co-Invest Fund"). Summit Master Company, LLC is the general partner of Summit Partners, L.P., which is the manager of Summit Investors Management, LLC, which is the manager of Summit Investors GE IX/VC IV, LLC ("Fund IX/VC IV") and the general partner of Summit Investors GE IX/VC IV (UK), L.P. ("Fund IX/VC IV (UK)"). F3 · ownership.nature: (continued from footnote 2) Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC, has delegated voting and investment decisions with respect to the securities held by Fund IX/VC IV and Fund IX/VC IV (UK) to Summit Partners, L.P. F4 · ownership.nature: The investment committee of Summit Partners, L.P., is currently composed of Peter Y. Chung, Scott C. Collins, and Peter L. Rottier, who may be deemed to have voting and dispositive authority over, and therefore beneficial ownership of, the reported securities. Each of the foregoing entities, Mr. Chung, Mr. Collins, and Mr. Rottier disclaims beneficial ownership of the shares, except to the extent of such person's or entity's pecuniary interest therein and the filing of this statement shall not be deemed an admission that any of the foregoing entities or persons are, for purposes of Section 16 of the Act or otherwise, the beneficial owner of any equity securities covered by this statement. Read SEC document
August 13, 2025 Filed Aug 15, 2025 20:17 UTC	Klaviyo, Inc. KVYO · Entity 3775	SaleSeries A Common Stock, par value $0.001 per share	6,500,000	$30.01	$195,065,000.00	Disclosure SEC source: 0000950170-25-109399 · ownership.xml · nonDerivative · entry 2 SUMMIT PARTNERS L P · CIK 0000830588 · 10% owner Summit Partners Growth Equity Fund IX-A, L.P. · CIK 0001634415 · 10% owner Summit Partners Growth Equity Fund IX-B, L.P. · CIK 0001634426 · 10% owner Summit Partners Co-Invest (Kiwi), LP · CIK 0001830877 · 10% owner SUMMIT INVESTORS GE IX/VC IV, LLC · CIK 0001654074 · 10% owner SUMMIT INVESTORS GE IX/VC IV (UK), L.P. · CIK 0001846709 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See footnotes Disclosed balance after: 500,000 F5 · balance_after: Consists of (i) 307,809 shares of Series A Common Stock held by Fund IX-A and (ii) 192,191 shares of Series A Common Stock held by Fund IX-B, in each case to facilitate charitable giving. F2 · ownership.nature: Summit Partners, L.P. is the manager of Summit Partners GE IX, LLC, which is the general partner of Summit Partners GE IX, LP, which is the general partner of Summit Partners Growth Equity Fund IX-A, L.P. ("Fund IX-A") and Summit Partners Growth Equity Fund IX-B, L.P. ("Fund IX-B"). Summit Partners, L.P. is the managing member of Summit Partners Co-Invest Kiwi GP, LLC, which is the general partner of Summit Partners Co-Invest (Kiwi), L.P. ("Kiwi Co-Invest Fund"). Summit Master Company, LLC is the general partner of Summit Partners, L.P., which is the manager of Summit Investors Management, LLC, which is the manager of Summit Investors GE IX/VC IV, LLC ("Fund IX/VC IV") and the general partner of Summit Investors GE IX/VC IV (UK), L.P. ("Fund IX/VC IV (UK)"). F3 · ownership.nature: (continued from footnote 2) Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC, has delegated voting and investment decisions with respect to the securities held by Fund IX/VC IV and Fund IX/VC IV (UK) to Summit Partners, L.P. F4 · ownership.nature: The investment committee of Summit Partners, L.P., is currently composed of Peter Y. Chung, Scott C. Collins, and Peter L. Rottier, who may be deemed to have voting and dispositive authority over, and therefore beneficial ownership of, the reported securities. Each of the foregoing entities, Mr. Chung, Mr. Collins, and Mr. Rottier disclaims beneficial ownership of the shares, except to the extent of such person's or entity's pecuniary interest therein and the filing of this statement shall not be deemed an admission that any of the foregoing entities or persons are, for purposes of Section 16 of the Act or otherwise, the beneficial owner of any equity securities covered by this statement. Read SEC document
August 13, 2025 Filed Aug 15, 2025 20:17 UTC	Klaviyo, Inc. KVYO · Entity 3775	ConversionSeries A Common Stock, par value $0.001 per share	7,000,000	Not disclosed	Not disclosed	Disclosure SEC source: 0000950170-25-109399 · ownership.xml · nonDerivative · entry 1 SUMMIT PARTNERS L P · CIK 0000830588 · 10% owner Summit Partners Growth Equity Fund IX-A, L.P. · CIK 0001634415 · 10% owner Summit Partners Growth Equity Fund IX-B, L.P. · CIK 0001634426 · 10% owner Summit Partners Co-Invest (Kiwi), LP · CIK 0001830877 · 10% owner SUMMIT INVESTORS GE IX/VC IV, LLC · CIK 0001654074 · 10% owner SUMMIT INVESTORS GE IX/VC IV (UK), L.P. · CIK 0001846709 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See footnote Disclosed balance after: 7,000,000 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation. F2 · ownership.nature: Summit Partners, L.P. is the manager of Summit Partners GE IX, LLC, which is the general partner of Summit Partners GE IX, LP, which is the general partner of Summit Partners Growth Equity Fund IX-A, L.P. ("Fund IX-A") and Summit Partners Growth Equity Fund IX-B, L.P. ("Fund IX-B"). Summit Partners, L.P. is the managing member of Summit Partners Co-Invest Kiwi GP, LLC, which is the general partner of Summit Partners Co-Invest (Kiwi), L.P. ("Kiwi Co-Invest Fund"). Summit Master Company, LLC is the general partner of Summit Partners, L.P., which is the manager of Summit Investors Management, LLC, which is the manager of Summit Investors GE IX/VC IV, LLC ("Fund IX/VC IV") and the general partner of Summit Investors GE IX/VC IV (UK), L.P. ("Fund IX/VC IV (UK)"). F3 · ownership.nature: (continued from footnote 2) Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC, has delegated voting and investment decisions with respect to the securities held by Fund IX/VC IV and Fund IX/VC IV (UK) to Summit Partners, L.P. F4 · ownership.nature: The investment committee of Summit Partners, L.P., is currently composed of Peter Y. Chung, Scott C. Collins, and Peter L. Rottier, who may be deemed to have voting and dispositive authority over, and therefore beneficial ownership of, the reported securities. Each of the foregoing entities, Mr. Chung, Mr. Collins, and Mr. Rottier disclaims beneficial ownership of the shares, except to the extent of such person's or entity's pecuniary interest therein and the filing of this statement shall not be deemed an admission that any of the foregoing entities or persons are, for purposes of Section 16 of the Act or otherwise, the beneficial owner of any equity securities covered by this statement. Read SEC document
June 04, 2025 Filed Jun 5, 2025 23:13 UTC	Klaviyo, Inc. KVYO · Entity 3775	ConversionSeries B Common Stock, par value $0.001 per share · Derivative	4,000,000	$0.00	$0.00	Disclosure SEC source: 0000950170-25-082604 · ownership.xml · derivative · entry 3 SUMMIT PARTNERS L P · CIK 0000830588 · 10% owner Summit Partners Growth Equity Fund IX-A, L.P. · CIK 0001634415 · 10% owner Summit Partners Growth Equity Fund IX-B, L.P. · CIK 0001634426 · 10% owner Summit Partners Co-Invest (Kiwi), LP · CIK 0001830877 · 10% owner SUMMIT INVESTORS GE IX/VC IV, LLC · CIK 0001654074 · 10% owner SUMMIT INVESTORS GE IX/VC IV (UK), L.P. · CIK 0001846709 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See footnote Disclosed balance after: 30,827,778 Underlying: Series A Common Stock, par value $0.001 per share · 4,000,000 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation. F1 · derivative.exercise_date: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation. F1 · derivative.expiration_date: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation. F5 · balance_after: Consists of (i) 18,219,907 shares of Series B Common Stock held by Fund IX-A, (ii) 11,376,255 shares of Series B Common Stock held by Fund IX-B, (iii) 1,123,429 shares of Series B Common Stock held by Kiwi Co-Invest Fund, (iv) 95,759 shares of Series B Common Stock held by Fund IX/VC IV, and (v) 12,428 shares of Series B Common Stock held by Fund IX/VC IV (UK). F2 · ownership.nature: Summit Partners, L.P. is the manager of Summit Partners GE IX, LLC, which is the general partner of Summit Partners GE IX, LP, which is the general partner of Summit Partners Growth Equity Fund IX-A, L.P. ("Fund IX-A") and Summit Partners Growth Equity Fund IX-B, L.P. ("Fund IX-B"). Summit Partners, L.P. is the managing member of Summit Partners Co-Invest Kiwi GP, LLC, which is the general partner of Summit Partners Co-Invest (Kiwi), L.P. ("Kiwi Co-Invest Fund"). Summit Master Company, LLC is the general partner of Summit Partners, L.P., which is the manager of Summit Investors Management, LLC, which is the manager of Summit Investors GE IX/VC IV, LLC ("Fund IX/VC IV") and the general partner of Summit Investors GE IX/VC IV (UK), L.P. ("Fund IX/VC IV (UK)"). F3 · ownership.nature: (continued from footnote 2) Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC, has delegated voting and investment decisions with respect to the securities held by Fund IX/VC IV and Fund IX/VC IV (UK) to Summit Partners, L.P. F4 · ownership.nature: The investment committee of Summit Partners, L.P., is currently composed of Peter Y. Chung, Scott C. Collins, and Peter L. Rottier, who may be deemed to have voting and dispositive authority over, and therefore beneficial ownership of, the reported securities. Each of the foregoing entities, Mr. Chung, Mr. Collins, and Mr. Rottier disclaims beneficial ownership of the shares, except to the extent of such person's or entity's pecuniary interest therein and the filing of this statement shall not be deemed an admission that any of the foregoing entities or persons are, for purposes of Section 16 of the Act or otherwise, the beneficial owner of any equity securities covered by this statement. Read SEC document
June 04, 2025 Filed Jun 5, 2025 23:13 UTC	Klaviyo, Inc. KVYO · Entity 3775	SaleSeries A Common Stock, par value $0.001 per share	4,000,000	$33.35	$133,400,000.00	Disclosure SEC source: 0000950170-25-082604 · ownership.xml · nonDerivative · entry 2 SUMMIT PARTNERS L P · CIK 0000830588 · 10% owner Summit Partners Growth Equity Fund IX-A, L.P. · CIK 0001634415 · 10% owner Summit Partners Growth Equity Fund IX-B, L.P. · CIK 0001634426 · 10% owner Summit Partners Co-Invest (Kiwi), LP · CIK 0001830877 · 10% owner SUMMIT INVESTORS GE IX/VC IV, LLC · CIK 0001654074 · 10% owner SUMMIT INVESTORS GE IX/VC IV (UK), L.P. · CIK 0001846709 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See footnotes Disclosed balance after: 0 F2 · ownership.nature: Summit Partners, L.P. is the manager of Summit Partners GE IX, LLC, which is the general partner of Summit Partners GE IX, LP, which is the general partner of Summit Partners Growth Equity Fund IX-A, L.P. ("Fund IX-A") and Summit Partners Growth Equity Fund IX-B, L.P. ("Fund IX-B"). Summit Partners, L.P. is the managing member of Summit Partners Co-Invest Kiwi GP, LLC, which is the general partner of Summit Partners Co-Invest (Kiwi), L.P. ("Kiwi Co-Invest Fund"). Summit Master Company, LLC is the general partner of Summit Partners, L.P., which is the manager of Summit Investors Management, LLC, which is the manager of Summit Investors GE IX/VC IV, LLC ("Fund IX/VC IV") and the general partner of Summit Investors GE IX/VC IV (UK), L.P. ("Fund IX/VC IV (UK)"). F3 · ownership.nature: (continued from footnote 2) Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC, has delegated voting and investment decisions with respect to the securities held by Fund IX/VC IV and Fund IX/VC IV (UK) to Summit Partners, L.P. F4 · ownership.nature: The investment committee of Summit Partners, L.P., is currently composed of Peter Y. Chung, Scott C. Collins, and Peter L. Rottier, who may be deemed to have voting and dispositive authority over, and therefore beneficial ownership of, the reported securities. Each of the foregoing entities, Mr. Chung, Mr. Collins, and Mr. Rottier disclaims beneficial ownership of the shares, except to the extent of such person's or entity's pecuniary interest therein and the filing of this statement shall not be deemed an admission that any of the foregoing entities or persons are, for purposes of Section 16 of the Act or otherwise, the beneficial owner of any equity securities covered by this statement. Read SEC document
June 04, 2025 Filed Jun 5, 2025 23:13 UTC	Klaviyo, Inc. KVYO · Entity 3775	ConversionSeries A Common Stock, par value $0.001 per share	4,000,000	Not disclosed	Not disclosed	Disclosure SEC source: 0000950170-25-082604 · ownership.xml · nonDerivative · entry 1 SUMMIT PARTNERS L P · CIK 0000830588 · 10% owner Summit Partners Growth Equity Fund IX-A, L.P. · CIK 0001634415 · 10% owner Summit Partners Growth Equity Fund IX-B, L.P. · CIK 0001634426 · 10% owner Summit Partners Co-Invest (Kiwi), LP · CIK 0001830877 · 10% owner SUMMIT INVESTORS GE IX/VC IV, LLC · CIK 0001654074 · 10% owner SUMMIT INVESTORS GE IX/VC IV (UK), L.P. · CIK 0001846709 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See footnote Disclosed balance after: 4,000,000 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation. F2 · ownership.nature: Summit Partners, L.P. is the manager of Summit Partners GE IX, LLC, which is the general partner of Summit Partners GE IX, LP, which is the general partner of Summit Partners Growth Equity Fund IX-A, L.P. ("Fund IX-A") and Summit Partners Growth Equity Fund IX-B, L.P. ("Fund IX-B"). Summit Partners, L.P. is the managing member of Summit Partners Co-Invest Kiwi GP, LLC, which is the general partner of Summit Partners Co-Invest (Kiwi), L.P. ("Kiwi Co-Invest Fund"). Summit Master Company, LLC is the general partner of Summit Partners, L.P., which is the manager of Summit Investors Management, LLC, which is the manager of Summit Investors GE IX/VC IV, LLC ("Fund IX/VC IV") and the general partner of Summit Investors GE IX/VC IV (UK), L.P. ("Fund IX/VC IV (UK)"). F3 · ownership.nature: (continued from footnote 2) Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC, has delegated voting and investment decisions with respect to the securities held by Fund IX/VC IV and Fund IX/VC IV (UK) to Summit Partners, L.P. F4 · ownership.nature: The investment committee of Summit Partners, L.P., is currently composed of Peter Y. Chung, Scott C. Collins, and Peter L. Rottier, who may be deemed to have voting and dispositive authority over, and therefore beneficial ownership of, the reported securities. Each of the foregoing entities, Mr. Chung, Mr. Collins, and Mr. Rottier disclaims beneficial ownership of the shares, except to the extent of such person's or entity's pecuniary interest therein and the filing of this statement shall not be deemed an admission that any of the foregoing entities or persons are, for purposes of Section 16 of the Act or otherwise, the beneficial owner of any equity securities covered by this statement. Read SEC document
May 19, 2025 Filed May 20, 2025 22:25 UTC	Klaviyo, Inc. KVYO · Entity 3775	ConversionSeries B Common Stock, par value $0.001 per share · Derivative	4,000,000	$0.00	$0.00	Disclosure SEC source: 0000950170-25-075445 · ownership.xml · derivative · entry 3 SUMMIT PARTNERS L P · CIK 0000830588 · 10% owner Summit Partners Growth Equity Fund IX-A, L.P. · CIK 0001634415 · 10% owner Summit Partners Growth Equity Fund IX-B, L.P. · CIK 0001634426 · 10% owner Summit Partners Co-Invest (Kiwi), LP · CIK 0001830877 · 10% owner SUMMIT INVESTORS GE IX/VC IV, LLC · CIK 0001654074 · 10% owner SUMMIT INVESTORS GE IX/VC IV (UK), L.P. · CIK 0001846709 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See footnote Disclosed balance after: 34,827,778 Underlying: Series A Common Stock, par value $0.001 per share · 4,000,000 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation. F1 · derivative.exercise_date: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation. F1 · derivative.expiration_date: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation. F5 · balance_after: Consists of (i) 20,583,996 shares of Series B Common Stock held by Fund IX-A, (ii) 12,852,359 shares of Series B Common Stock held by Fund IX-B, (iii) 1,269,198 shares of Series B Common Stock held by Kiwi Co-Invest Fund, (iv) 108,184 shares of Series B Common Stock held by Fund IX/VC IV, and (v) 14,041 shares of Series B Common Stock held by Fund IX/VC IV (UK). F2 · ownership.nature: Summit Partners, L.P. is the manager of Summit Partners GE IX, LLC, which is the general partner of Summit Partners GE IX, LP, which is the general partner of Summit Partners Growth Equity Fund IX-A, L.P. ("Fund IX-A") and Summit Partners Growth Equity Fund IX-B, L.P. ("Fund IX-B"). Summit Partners, L.P. is the managing member of Summit Partners Co-Invest Kiwi GP, LLC, which is the general partner of Summit Partners Co-Invest (Kiwi), L.P. ("Kiwi Co-Invest Fund"). Summit Master Company, LLC is the general partner of Summit Partners, L.P., which is the manager of Summit Investors Management, LLC, which is the manager of Summit Investors GE IX/VC IV, LLC ("Fund IX/VC IV") and the general partner of Summit Investors GE IX/VC IV (UK), L.P. ("Fund IX/VC IV (UK)"). F3 · ownership.nature: (continued from footnote 2) Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC, has delegated voting and investment decisions with respect to the securities held by Fund IX/VC IV and Fund IX/VC IV (UK) to Summit Partners, L.P. F4 · ownership.nature: The investment committee of Summit Partners, L.P., is currently composed of Peter Y. Chung, Scott C. Collins, and Peter L. Rottier, who may be deemed to have voting and dispositive authority over, and therefore beneficial ownership of, the reported securities. Each of the foregoing entities, Mr. Chung, Mr. Collins, and Mr. Rottier disclaims beneficial ownership of the shares, except to the extent of such person's or entity's pecuniary interest therein and the filing of this statement shall not be deemed an admission that any of the foregoing entities or persons are, for purposes of Section 16 of the Act or otherwise, the beneficial owner of any equity securities covered by this statement. Read SEC document
May 19, 2025 Filed May 20, 2025 22:25 UTC	Klaviyo, Inc. KVYO · Entity 3775	SaleSeries A Common Stock, par value $0.001 per share	4,000,000	$33.00	$132,000,000.00	Disclosure SEC source: 0000950170-25-075445 · ownership.xml · nonDerivative · entry 2 SUMMIT PARTNERS L P · CIK 0000830588 · 10% owner Summit Partners Growth Equity Fund IX-A, L.P. · CIK 0001634415 · 10% owner Summit Partners Growth Equity Fund IX-B, L.P. · CIK 0001634426 · 10% owner Summit Partners Co-Invest (Kiwi), LP · CIK 0001830877 · 10% owner SUMMIT INVESTORS GE IX/VC IV, LLC · CIK 0001654074 · 10% owner SUMMIT INVESTORS GE IX/VC IV (UK), L.P. · CIK 0001846709 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See footnotes Disclosed balance after: 0 F2 · ownership.nature: Summit Partners, L.P. is the manager of Summit Partners GE IX, LLC, which is the general partner of Summit Partners GE IX, LP, which is the general partner of Summit Partners Growth Equity Fund IX-A, L.P. ("Fund IX-A") and Summit Partners Growth Equity Fund IX-B, L.P. ("Fund IX-B"). Summit Partners, L.P. is the managing member of Summit Partners Co-Invest Kiwi GP, LLC, which is the general partner of Summit Partners Co-Invest (Kiwi), L.P. ("Kiwi Co-Invest Fund"). Summit Master Company, LLC is the general partner of Summit Partners, L.P., which is the manager of Summit Investors Management, LLC, which is the manager of Summit Investors GE IX/VC IV, LLC ("Fund IX/VC IV") and the general partner of Summit Investors GE IX/VC IV (UK), L.P. ("Fund IX/VC IV (UK)"). F3 · ownership.nature: (continued from footnote 2) Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC, has delegated voting and investment decisions with respect to the securities held by Fund IX/VC IV and Fund IX/VC IV (UK) to Summit Partners, L.P. F4 · ownership.nature: The investment committee of Summit Partners, L.P., is currently composed of Peter Y. Chung, Scott C. Collins, and Peter L. Rottier, who may be deemed to have voting and dispositive authority over, and therefore beneficial ownership of, the reported securities. Each of the foregoing entities, Mr. Chung, Mr. Collins, and Mr. Rottier disclaims beneficial ownership of the shares, except to the extent of such person's or entity's pecuniary interest therein and the filing of this statement shall not be deemed an admission that any of the foregoing entities or persons are, for purposes of Section 16 of the Act or otherwise, the beneficial owner of any equity securities covered by this statement. Read SEC document
May 19, 2025 Filed May 20, 2025 22:25 UTC	Klaviyo, Inc. KVYO · Entity 3775	ConversionSeries A Common Stock, par value $0.001 per share	4,000,000	Not disclosed	Not disclosed	Disclosure SEC source: 0000950170-25-075445 · ownership.xml · nonDerivative · entry 1 SUMMIT PARTNERS L P · CIK 0000830588 · 10% owner Summit Partners Growth Equity Fund IX-A, L.P. · CIK 0001634415 · 10% owner Summit Partners Growth Equity Fund IX-B, L.P. · CIK 0001634426 · 10% owner Summit Partners Co-Invest (Kiwi), LP · CIK 0001830877 · 10% owner SUMMIT INVESTORS GE IX/VC IV, LLC · CIK 0001654074 · 10% owner SUMMIT INVESTORS GE IX/VC IV (UK), L.P. · CIK 0001846709 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See footnote Disclosed balance after: 4,000,000 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation. F2 · ownership.nature: Summit Partners, L.P. is the manager of Summit Partners GE IX, LLC, which is the general partner of Summit Partners GE IX, LP, which is the general partner of Summit Partners Growth Equity Fund IX-A, L.P. ("Fund IX-A") and Summit Partners Growth Equity Fund IX-B, L.P. ("Fund IX-B"). Summit Partners, L.P. is the managing member of Summit Partners Co-Invest Kiwi GP, LLC, which is the general partner of Summit Partners Co-Invest (Kiwi), L.P. ("Kiwi Co-Invest Fund"). Summit Master Company, LLC is the general partner of Summit Partners, L.P., which is the manager of Summit Investors Management, LLC, which is the manager of Summit Investors GE IX/VC IV, LLC ("Fund IX/VC IV") and the general partner of Summit Investors GE IX/VC IV (UK), L.P. ("Fund IX/VC IV (UK)"). F3 · ownership.nature: (continued from footnote 2) Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC, has delegated voting and investment decisions with respect to the securities held by Fund IX/VC IV and Fund IX/VC IV (UK) to Summit Partners, L.P. F4 · ownership.nature: The investment committee of Summit Partners, L.P., is currently composed of Peter Y. Chung, Scott C. Collins, and Peter L. Rottier, who may be deemed to have voting and dispositive authority over, and therefore beneficial ownership of, the reported securities. Each of the foregoing entities, Mr. Chung, Mr. Collins, and Mr. Rottier disclaims beneficial ownership of the shares, except to the extent of such person's or entity's pecuniary interest therein and the filing of this statement shall not be deemed an admission that any of the foregoing entities or persons are, for purposes of Section 16 of the Act or otherwise, the beneficial owner of any equity securities covered by this statement. Read SEC document
March 14, 2025 Filed Mar 17, 2025 21:11 UTC	Klaviyo, Inc. KVYO · Entity 3775	ConversionSeries B Common Stock, par value $0.001 per share · Derivative	2,000,000	$0.00	$0.00	Disclosure SEC source: 0000950170-25-040470 · ownership.xml · derivative · entry 3 SUMMIT PARTNERS L P · CIK 0000830588 · 10% owner Summit Partners Growth Equity Fund IX-A, L.P. · CIK 0001634415 · 10% owner Summit Partners Growth Equity Fund IX-B, L.P. · CIK 0001634426 · 10% owner Summit Partners Co-Invest (Kiwi), LP · CIK 0001830877 · 10% owner SUMMIT INVESTORS GE IX/VC IV, LLC · CIK 0001654074 · 10% owner SUMMIT INVESTORS GE IX/VC IV (UK), L.P. · CIK 0001846709 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See footnote Disclosed balance after: 38,827,778 Underlying: Series A Common Stock, par value $0.001 per share · 2,000,000 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation. F1 · derivative.exercise_date: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation. F1 · derivative.expiration_date: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation. F5 · balance_after: Consists of (i) 22,948,085 shares of Series B Common Stock held by Fund IX-A, (ii) 14,328,463 shares of Series B Common Stock held by Fund IX-B, (iii) 1,414,967 shares of Series B Common Stock held by Kiwi Co-Invest Fund, (iv) 120,609 shares of Series B Common Stock held by Fund IX/VC IV, and (v) 15,654 shares of Series B Common Stock held by Fund IX/VC IV (UK). F2 · ownership.nature: Summit Partners, L.P. is the manager of Summit Partners GE IX, LLC, which is the general partner of Summit Partners GE IX, LP, which is the general partner of Summit Partners Growth Equity Fund IX-A, L.P. ("Fund IX-A") and Summit Partners Growth Equity Fund IX-B, L.P. ("Fund IX-B"). Summit Partners, L.P. is the managing member of Summit Partners Co-Invest Kiwi GP, LLC, which is the general partner of Summit Partners Co-Invest (Kiwi), L.P. ("Kiwi Co-Invest Fund"). Summit Master Company, LLC is the general partner of Summit Partners, L.P., which is the manager of Summit Investors Management, LLC, which is the manager of Summit Investors GE IX/VC IV, LLC ("Fund IX/VC IV") and the general partner of Summit Investors GE IX/VC IV (UK), L.P. ("Fund IX/VC IV (UK)"). F3 · ownership.nature: (continued from footnote 2) Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC, has delegated voting and investment decisions with respect to the securities held by Fund IX/VC IV and Fund IX/VC IV (UK) to Summit Partners, L.P. F4 · ownership.nature: The investment committee of Summit Partners, L.P., is currently composed of Peter Y. Chung, Scott C. Collins, and Peter L. Rottier, who may be deemed to have voting and dispositive authority over, and therefore beneficial ownership of, the reported securities. Each of the foregoing entities, Mr. Chung, Mr. Collins, and Mr. Rottier disclaims beneficial ownership of the shares, except to the extent of such person's or entity's pecuniary interest therein and the filing of this statement shall not be deemed an admission that any of the foregoing entities or persons are, for purposes of Section 16 of the Act or otherwise, the beneficial owner of any equity securities covered by this statement. Read SEC document
March 14, 2025 Filed Mar 17, 2025 21:11 UTC	Klaviyo, Inc. KVYO · Entity 3775	SaleSeries A Common Stock, par value $0.001 per share	2,000,000	$32.44	$64,880,000.00	Disclosure SEC source: 0000950170-25-040470 · ownership.xml · nonDerivative · entry 2 SUMMIT PARTNERS L P · CIK 0000830588 · 10% owner Summit Partners Growth Equity Fund IX-A, L.P. · CIK 0001634415 · 10% owner Summit Partners Growth Equity Fund IX-B, L.P. · CIK 0001634426 · 10% owner Summit Partners Co-Invest (Kiwi), LP · CIK 0001830877 · 10% owner SUMMIT INVESTORS GE IX/VC IV, LLC · CIK 0001654074 · 10% owner SUMMIT INVESTORS GE IX/VC IV (UK), L.P. · CIK 0001846709 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See footnotes Disclosed balance after: 0 F2 · ownership.nature: Summit Partners, L.P. is the manager of Summit Partners GE IX, LLC, which is the general partner of Summit Partners GE IX, LP, which is the general partner of Summit Partners Growth Equity Fund IX-A, L.P. ("Fund IX-A") and Summit Partners Growth Equity Fund IX-B, L.P. ("Fund IX-B"). Summit Partners, L.P. is the managing member of Summit Partners Co-Invest Kiwi GP, LLC, which is the general partner of Summit Partners Co-Invest (Kiwi), L.P. ("Kiwi Co-Invest Fund"). Summit Master Company, LLC is the general partner of Summit Partners, L.P., which is the manager of Summit Investors Management, LLC, which is the manager of Summit Investors GE IX/VC IV, LLC ("Fund IX/VC IV") and the general partner of Summit Investors GE IX/VC IV (UK), L.P. ("Fund IX/VC IV (UK)"). F3 · ownership.nature: (continued from footnote 2) Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC, has delegated voting and investment decisions with respect to the securities held by Fund IX/VC IV and Fund IX/VC IV (UK) to Summit Partners, L.P. F4 · ownership.nature: The investment committee of Summit Partners, L.P., is currently composed of Peter Y. Chung, Scott C. Collins, and Peter L. Rottier, who may be deemed to have voting and dispositive authority over, and therefore beneficial ownership of, the reported securities. Each of the foregoing entities, Mr. Chung, Mr. Collins, and Mr. Rottier disclaims beneficial ownership of the shares, except to the extent of such person's or entity's pecuniary interest therein and the filing of this statement shall not be deemed an admission that any of the foregoing entities or persons are, for purposes of Section 16 of the Act or otherwise, the beneficial owner of any equity securities covered by this statement. Read SEC document
March 14, 2025 Filed Mar 17, 2025 21:11 UTC	Klaviyo, Inc. KVYO · Entity 3775	ConversionSeries A Common Stock, par value $0.001 per share	2,000,000	Not disclosed	Not disclosed	Disclosure SEC source: 0000950170-25-040470 · ownership.xml · nonDerivative · entry 1 SUMMIT PARTNERS L P · CIK 0000830588 · 10% owner Summit Partners Growth Equity Fund IX-A, L.P. · CIK 0001634415 · 10% owner Summit Partners Growth Equity Fund IX-B, L.P. · CIK 0001634426 · 10% owner Summit Partners Co-Invest (Kiwi), LP · CIK 0001830877 · 10% owner SUMMIT INVESTORS GE IX/VC IV, LLC · CIK 0001654074 · 10% owner SUMMIT INVESTORS GE IX/VC IV (UK), L.P. · CIK 0001846709 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See footnote Disclosed balance after: 2,000,000 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation. F2 · ownership.nature: Summit Partners, L.P. is the manager of Summit Partners GE IX, LLC, which is the general partner of Summit Partners GE IX, LP, which is the general partner of Summit Partners Growth Equity Fund IX-A, L.P. ("Fund IX-A") and Summit Partners Growth Equity Fund IX-B, L.P. ("Fund IX-B"). Summit Partners, L.P. is the managing member of Summit Partners Co-Invest Kiwi GP, LLC, which is the general partner of Summit Partners Co-Invest (Kiwi), L.P. ("Kiwi Co-Invest Fund"). Summit Master Company, LLC is the general partner of Summit Partners, L.P., which is the manager of Summit Investors Management, LLC, which is the manager of Summit Investors GE IX/VC IV, LLC ("Fund IX/VC IV") and the general partner of Summit Investors GE IX/VC IV (UK), L.P. ("Fund IX/VC IV (UK)"). F3 · ownership.nature: (continued from footnote 2) Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC, has delegated voting and investment decisions with respect to the securities held by Fund IX/VC IV and Fund IX/VC IV (UK) to Summit Partners, L.P. F4 · ownership.nature: The investment committee of Summit Partners, L.P., is currently composed of Peter Y. Chung, Scott C. Collins, and Peter L. Rottier, who may be deemed to have voting and dispositive authority over, and therefore beneficial ownership of, the reported securities. Each of the foregoing entities, Mr. Chung, Mr. Collins, and Mr. Rottier disclaims beneficial ownership of the shares, except to the extent of such person's or entity's pecuniary interest therein and the filing of this statement shall not be deemed an admission that any of the foregoing entities or persons are, for purposes of Section 16 of the Act or otherwise, the beneficial owner of any equity securities covered by this statement. Read SEC document
December 09, 2024 Filed Dec 11, 2024 21:57 UTC	Klaviyo, Inc. KVYO · Entity 3775	ConversionSeries B Common Stock, par value $0.001 per share · Derivative	2,100,000	$0.00	$0.00	Disclosure SEC source: 0000950170-24-135422 · ownership.xml · derivative · entry 3 SUMMIT PARTNERS L P · CIK 0000830588 · 10% owner Summit Partners Growth Equity Fund IX-A, L.P. · CIK 0001634415 · 10% owner Summit Partners Growth Equity Fund IX-B, L.P. · CIK 0001634426 · 10% owner Summit Partners Co-Invest (Kiwi), LP · CIK 0001830877 · 10% owner SUMMIT INVESTORS GE IX/VC IV, LLC · CIK 0001654074 · 10% owner SUMMIT INVESTORS GE IX/VC IV (UK), L.P. · CIK 0001846709 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See footnote Disclosed balance after: 40,827,778 Underlying: Series A Common Stock, par value $0.001 per share · 2,100,000 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation. On December 9, 2024, the reporting persons directed the sale of an aggregate of 2,100,000 shares of their Series B Common Stock, resulting in the automatic conversion of the shares into Series A Common Stock upon execution of the sale. F1 · derivative.exercise_date: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation. On December 9, 2024, the reporting persons directed the sale of an aggregate of 2,100,000 shares of their Series B Common Stock, resulting in the automatic conversion of the shares into Series A Common Stock upon execution of the sale. F1 · derivative.expiration_date: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation. On December 9, 2024, the reporting persons directed the sale of an aggregate of 2,100,000 shares of their Series B Common Stock, resulting in the automatic conversion of the shares into Series A Common Stock upon execution of the sale. F5 · balance_after: Consists of (i) 24,130,130 shares of Series B Common Stock held by Fund IX-A, (ii) 15,066,515 shares of Series B Common Stock held by Fund IX-B, (iii) 1,487,851 shares of Series B Common Stock held by Kiwi Co-Invest Fund, (iv) 126,822 shares of Series B Common Stock held by Fund IX/VC IV, and (v) 16,460 shares of Series B Common Stock held by Fund IX/VC IV (UK). F2 · ownership.nature: Summit Partners, L.P. is the manager of Summit Partners GE IX, LLC, which is the general partner of Summit Partners GE IX, LP, which is the general partner of Summit Partners Growth Equity Fund IX-A, L.P. ("Fund IX-A") and Summit Partners Growth Equity Fund IX-B, L.P. ("Fund IX-B"). Summit Partners, L.P. is the managing member of Summit Partners Co-Invest Kiwi GP, LLC, which is the general partner of Summit Partners Co-Invest (Kiwi), L.P. ("Kiwi Co-Invest Fund"). Summit Master Company, LLC is the general partner of Summit Partners, L.P., which is the manager of Summit Investors Management, LLC, which is the manager of Summit Investors GE IX/VC IV, LLC ("Fund IX/VC IV") and the general partner of Summit Investors GE IX/VC IV (UK), L.P. ("Fund IX/VC IV (UK)"). F3 · ownership.nature: (continued from footnote 2) Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC, has delegated voting and investment decisions with respect to the Series B Common Stock held by Fund IX/VC IV and Fund IX/VC IV (UK) to Summit Partners, L.P. F4 · ownership.nature: The investment committee of Summit Partners, L.P., is currently composed of Peter Y. Chung, Scott C. Collins, and Peter L. Rottier, who may be deemed to have voting and dispositive authority over, and therefore beneficial ownership of, the reported securities. Each of the foregoing entities, Mr. Chung, Mr. Collins, and Mr. Rottier disclaims beneficial ownership of the shares, except to the extent of such person's or entity's pecuniary interest therein and the filing of this statement shall not be deemed an admission that any of the foregoing entities or persons are, for purposes of Section 16 of the Act or otherwise, the beneficial owner of any equity securities covered by this statement. Read SEC document
December 09, 2024 Filed Dec 11, 2024 21:57 UTC	Klaviyo, Inc. KVYO · Entity 3775	SaleSeries A Common Stock, par value $0.001 per share	2,100,000	$39.15	$82,215,000.00	Disclosure SEC source: 0000950170-24-135422 · ownership.xml · nonDerivative · entry 2 SUMMIT PARTNERS L P · CIK 0000830588 · 10% owner Summit Partners Growth Equity Fund IX-A, L.P. · CIK 0001634415 · 10% owner Summit Partners Growth Equity Fund IX-B, L.P. · CIK 0001634426 · 10% owner Summit Partners Co-Invest (Kiwi), LP · CIK 0001830877 · 10% owner SUMMIT INVESTORS GE IX/VC IV, LLC · CIK 0001654074 · 10% owner SUMMIT INVESTORS GE IX/VC IV (UK), L.P. · CIK 0001846709 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See footnotes Disclosed balance after: 0 F2 · ownership.nature: Summit Partners, L.P. is the manager of Summit Partners GE IX, LLC, which is the general partner of Summit Partners GE IX, LP, which is the general partner of Summit Partners Growth Equity Fund IX-A, L.P. ("Fund IX-A") and Summit Partners Growth Equity Fund IX-B, L.P. ("Fund IX-B"). Summit Partners, L.P. is the managing member of Summit Partners Co-Invest Kiwi GP, LLC, which is the general partner of Summit Partners Co-Invest (Kiwi), L.P. ("Kiwi Co-Invest Fund"). Summit Master Company, LLC is the general partner of Summit Partners, L.P., which is the manager of Summit Investors Management, LLC, which is the manager of Summit Investors GE IX/VC IV, LLC ("Fund IX/VC IV") and the general partner of Summit Investors GE IX/VC IV (UK), L.P. ("Fund IX/VC IV (UK)"). F3 · ownership.nature: (continued from footnote 2) Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC, has delegated voting and investment decisions with respect to the Series B Common Stock held by Fund IX/VC IV and Fund IX/VC IV (UK) to Summit Partners, L.P. F4 · ownership.nature: The investment committee of Summit Partners, L.P., is currently composed of Peter Y. Chung, Scott C. Collins, and Peter L. Rottier, who may be deemed to have voting and dispositive authority over, and therefore beneficial ownership of, the reported securities. Each of the foregoing entities, Mr. Chung, Mr. Collins, and Mr. Rottier disclaims beneficial ownership of the shares, except to the extent of such person's or entity's pecuniary interest therein and the filing of this statement shall not be deemed an admission that any of the foregoing entities or persons are, for purposes of Section 16 of the Act or otherwise, the beneficial owner of any equity securities covered by this statement. Read SEC document
December 09, 2024 Filed Dec 11, 2024 21:57 UTC	Klaviyo, Inc. KVYO · Entity 3775	ConversionSeries A Common Stock, par value $0.001 per share	2,100,000	Not disclosed	Not disclosed	Disclosure SEC source: 0000950170-24-135422 · ownership.xml · nonDerivative · entry 1 SUMMIT PARTNERS L P · CIK 0000830588 · 10% owner Summit Partners Growth Equity Fund IX-A, L.P. · CIK 0001634415 · 10% owner Summit Partners Growth Equity Fund IX-B, L.P. · CIK 0001634426 · 10% owner Summit Partners Co-Invest (Kiwi), LP · CIK 0001830877 · 10% owner SUMMIT INVESTORS GE IX/VC IV, LLC · CIK 0001654074 · 10% owner SUMMIT INVESTORS GE IX/VC IV (UK), L.P. · CIK 0001846709 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See footnote Disclosed balance after: 2,100,000 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation. On December 9, 2024, the reporting persons directed the sale of an aggregate of 2,100,000 shares of their Series B Common Stock, resulting in the automatic conversion of the shares into Series A Common Stock upon execution of the sale. F2 · ownership.nature: Summit Partners, L.P. is the manager of Summit Partners GE IX, LLC, which is the general partner of Summit Partners GE IX, LP, which is the general partner of Summit Partners Growth Equity Fund IX-A, L.P. ("Fund IX-A") and Summit Partners Growth Equity Fund IX-B, L.P. ("Fund IX-B"). Summit Partners, L.P. is the managing member of Summit Partners Co-Invest Kiwi GP, LLC, which is the general partner of Summit Partners Co-Invest (Kiwi), L.P. ("Kiwi Co-Invest Fund"). Summit Master Company, LLC is the general partner of Summit Partners, L.P., which is the manager of Summit Investors Management, LLC, which is the manager of Summit Investors GE IX/VC IV, LLC ("Fund IX/VC IV") and the general partner of Summit Investors GE IX/VC IV (UK), L.P. ("Fund IX/VC IV (UK)"). F3 · ownership.nature: (continued from footnote 2) Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC, has delegated voting and investment decisions with respect to the Series B Common Stock held by Fund IX/VC IV and Fund IX/VC IV (UK) to Summit Partners, L.P. F4 · ownership.nature: The investment committee of Summit Partners, L.P., is currently composed of Peter Y. Chung, Scott C. Collins, and Peter L. Rottier, who may be deemed to have voting and dispositive authority over, and therefore beneficial ownership of, the reported securities. Each of the foregoing entities, Mr. Chung, Mr. Collins, and Mr. Rottier disclaims beneficial ownership of the shares, except to the extent of such person's or entity's pecuniary interest therein and the filing of this statement shall not be deemed an admission that any of the foregoing entities or persons are, for purposes of Section 16 of the Act or otherwise, the beneficial owner of any equity securities covered by this statement. Read SEC document
November 25, 2024 Filed Nov 25, 2024 21:05 UTC	Klaviyo, Inc. KVYO · Entity 3775	OtherSeries A Common Stock, par value $0.001 per share	346,707	$0.00	$0.00	Disclosure SEC source: 0000950170-24-130550 · ownership.xml · nonDerivative · entry 1 SUMMIT PARTNERS L P · CIK 0000830588 · 10% owner Summit Partners Growth Equity Fund IX-A, L.P. · CIK 0001634415 · 10% owner Summit Partners Growth Equity Fund IX-B, L.P. · CIK 0001634426 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See footnotes Disclosed balance after: 0 F1 · kind: Represents a distribution of 213,439 shares of Series A common stock, par value $0.001 per share ("Series A Common Stock") held by Summit Partners Growth Equity Fund IX-A, L.P. ("Fund IX-A") and 133,268 shares of Series A Common Stock held by Summit Partners Growth Equity Fund IX-B, L.P. ("Fund IX-B"), in each case to facilitate bona fide charitable gifts. F2 · ownership.nature: Summit Partners, L.P. is the manager of Summit Partners GE IX, LLC, which is the general partner of Summit Partners GE IX, LP, which is the general partner of Fund IX-A and Fund IX-B. The investment committee of Summit Partners, L.P., is currently composed of Peter Y. Chung, Scott C. Collins, and Peter L. Rottier, who may be deemed to have voting and dispositive authority over, and therefore beneficial ownership of, the reported securities. Each of the foregoing entities, Mr. Chung, Mr. Collins, and Mr. Rottier disclaims beneficial ownership of the shares, except to the extent of such person's or entity's pecuniary interest therein and the filing of this statement shall not be deemed an admission that any of the foregoing entities or persons are, for purposes of Section 16 of the Act or otherwise, the beneficial owner of any equity securities covered by this statement. Read SEC document
November 14, 2024 Filed Nov 18, 2024 21:25 UTC	Klaviyo, Inc. KVYO · Entity 3775	ConversionSeries B Common Stock, par value $0.001 per share · Derivative	3,500,000	$0.00	$0.00	Disclosure SEC source: 0000950170-24-127985 · ownership.xml · derivative · entry 3 SUMMIT PARTNERS L P · CIK 0000830588 · 10% owner Summit Partners Growth Equity Fund IX-A, L.P. · CIK 0001634415 · 10% owner Summit Partners Growth Equity Fund IX-B, L.P. · CIK 0001634426 · 10% owner Summit Partners Co-Invest (Kiwi), LP · CIK 0001830877 · 10% owner SUMMIT INVESTORS GE IX/VC IV, LLC · CIK 0001654074 · 10% owner SUMMIT INVESTORS GE IX/VC IV (UK), L.P. · CIK 0001846709 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See footnote Disclosed balance after: 42,927,778 Underlying: Series A Common Stock, par value $0.001 per share · 3,500,000 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation. F1 · derivative.exercise_date: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation. F1 · derivative.expiration_date: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation. F6 · balance_after: Consists of (i) 25,371,277 shares of Series B Common Stock held by Fund IX-A, (ii) 15,841,470 shares of Series B Common Stock held by Fund IX-B, (iii) 1,564,379 shares of Series B Common Stock held by Kiwi Co-Invest Fund, (iv) 133,345 shares of Series B Common Stock held by Fund IX/VC IV, and (v) 17,307 shares of Series B Common Stock held by Fund IX/VC IV (UK). F2 · ownership.nature: Summit Partners, L.P. is the manager of Summit Partners GE IX, LLC, which is the general partner of Summit Partners GE IX, LP, which is the general partner of Summit Partners Growth Equity Fund IX-A, L.P. ("Fund IX-A") and Summit Partners Growth Equity Fund IX-B, L.P. ("Fund IX-B"). Summit Partners, L.P. is the managing member of Summit Partners Co-Invest Kiwi GP, LLC, which is the general partner of Summit Partners Co-Invest (Kiwi), L.P. ("Kiwi Co-Invest Fund"). Summit Master Company, LLC is the general partner of Summit Partners, L.P., which is the manager of Summit Investors Management, LLC, which is the manager of Summit Investors GE IX/VC IV, LLC ("Fund IX/VC IV") and the general partner of Summit Investors GE IX/VC IV (UK), L.P. ("Fund IX/VC IV (UK)"). F3 · ownership.nature: (continued from footnote 3) Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC, has delegated voting and investment decisions with respect to the securities held by Fund IX/VC IV and Fund IX/VC IV (UK) to Summit Partners, L.P. F4 · ownership.nature: The investment committee of Summit Partners, L.P., is currently composed of Peter Y. Chung, Scott C. Collins, and Peter L. Rottier, who may be deemed to have voting and dispositive authority over, and therefore beneficial ownership of, the reported securities. Each of the foregoing entities, Mr. Chung, Mr. Collins, and Mr. Rottier disclaims beneficial ownership of the shares, except to the extent of such person's or entity's pecuniary interest therein and the filing of this statement shall not be deemed an admission that any of the foregoing entities or persons are, for purposes of Section 16 of the Act or otherwise, the beneficial owner of any equity securities covered by this statement. Read SEC document
November 14, 2024 Filed Nov 18, 2024 21:25 UTC	Klaviyo, Inc. KVYO · Entity 3775	SaleSeries A Common Stock, par value $0.001 per share	3,153,293	$36.20	$114,149,206.60	Disclosure SEC source: 0000950170-24-127985 · ownership.xml · nonDerivative · entry 2 SUMMIT PARTNERS L P · CIK 0000830588 · 10% owner Summit Partners Growth Equity Fund IX-A, L.P. · CIK 0001634415 · 10% owner Summit Partners Growth Equity Fund IX-B, L.P. · CIK 0001634426 · 10% owner Summit Partners Co-Invest (Kiwi), LP · CIK 0001830877 · 10% owner SUMMIT INVESTORS GE IX/VC IV, LLC · CIK 0001654074 · 10% owner SUMMIT INVESTORS GE IX/VC IV (UK), L.P. · CIK 0001846709 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See footnotes Disclosed balance after: 346,707 F5 · balance_after: Consists of (i) 213,439 shares of Series A Common Stock held by Fund IX-A and (ii) 133,268 shares of Series A Common Stock held by Fund IX-B. F2 · ownership.nature: Summit Partners, L.P. is the manager of Summit Partners GE IX, LLC, which is the general partner of Summit Partners GE IX, LP, which is the general partner of Summit Partners Growth Equity Fund IX-A, L.P. ("Fund IX-A") and Summit Partners Growth Equity Fund IX-B, L.P. ("Fund IX-B"). Summit Partners, L.P. is the managing member of Summit Partners Co-Invest Kiwi GP, LLC, which is the general partner of Summit Partners Co-Invest (Kiwi), L.P. ("Kiwi Co-Invest Fund"). Summit Master Company, LLC is the general partner of Summit Partners, L.P., which is the manager of Summit Investors Management, LLC, which is the manager of Summit Investors GE IX/VC IV, LLC ("Fund IX/VC IV") and the general partner of Summit Investors GE IX/VC IV (UK), L.P. ("Fund IX/VC IV (UK)"). F3 · ownership.nature: (continued from footnote 3) Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC, has delegated voting and investment decisions with respect to the securities held by Fund IX/VC IV and Fund IX/VC IV (UK) to Summit Partners, L.P. F4 · ownership.nature: The investment committee of Summit Partners, L.P., is currently composed of Peter Y. Chung, Scott C. Collins, and Peter L. Rottier, who may be deemed to have voting and dispositive authority over, and therefore beneficial ownership of, the reported securities. Each of the foregoing entities, Mr. Chung, Mr. Collins, and Mr. Rottier disclaims beneficial ownership of the shares, except to the extent of such person's or entity's pecuniary interest therein and the filing of this statement shall not be deemed an admission that any of the foregoing entities or persons are, for purposes of Section 16 of the Act or otherwise, the beneficial owner of any equity securities covered by this statement. Read SEC document
November 14, 2024 Filed Nov 18, 2024 21:25 UTC	Klaviyo, Inc. KVYO · Entity 3775	ConversionSeries A Common Stock, par value $0.001 per share	3,500,000	Not disclosed	Not disclosed	Disclosure SEC source: 0000950170-24-127985 · ownership.xml · nonDerivative · entry 1 SUMMIT PARTNERS L P · CIK 0000830588 · 10% owner Summit Partners Growth Equity Fund IX-A, L.P. · CIK 0001634415 · 10% owner Summit Partners Growth Equity Fund IX-B, L.P. · CIK 0001634426 · 10% owner Summit Partners Co-Invest (Kiwi), LP · CIK 0001830877 · 10% owner SUMMIT INVESTORS GE IX/VC IV, LLC · CIK 0001654074 · 10% owner SUMMIT INVESTORS GE IX/VC IV (UK), L.P. · CIK 0001846709 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See footnote Disclosed balance after: 3,500,000 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation. F2 · ownership.nature: Summit Partners, L.P. is the manager of Summit Partners GE IX, LLC, which is the general partner of Summit Partners GE IX, LP, which is the general partner of Summit Partners Growth Equity Fund IX-A, L.P. ("Fund IX-A") and Summit Partners Growth Equity Fund IX-B, L.P. ("Fund IX-B"). Summit Partners, L.P. is the managing member of Summit Partners Co-Invest Kiwi GP, LLC, which is the general partner of Summit Partners Co-Invest (Kiwi), L.P. ("Kiwi Co-Invest Fund"). Summit Master Company, LLC is the general partner of Summit Partners, L.P., which is the manager of Summit Investors Management, LLC, which is the manager of Summit Investors GE IX/VC IV, LLC ("Fund IX/VC IV") and the general partner of Summit Investors GE IX/VC IV (UK), L.P. ("Fund IX/VC IV (UK)"). F3 · ownership.nature: (continued from footnote 3) Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC, has delegated voting and investment decisions with respect to the securities held by Fund IX/VC IV and Fund IX/VC IV (UK) to Summit Partners, L.P. F4 · ownership.nature: The investment committee of Summit Partners, L.P., is currently composed of Peter Y. Chung, Scott C. Collins, and Peter L. Rottier, who may be deemed to have voting and dispositive authority over, and therefore beneficial ownership of, the reported securities. Each of the foregoing entities, Mr. Chung, Mr. Collins, and Mr. Rottier disclaims beneficial ownership of the shares, except to the extent of such person's or entity's pecuniary interest therein and the filing of this statement shall not be deemed an admission that any of the foregoing entities or persons are, for purposes of Section 16 of the Act or otherwise, the beneficial owner of any equity securities covered by this statement. Read SEC document
September 13, 2024 Filed Sep 17, 2024 20:23 UTC	Klaviyo, Inc. KVYO · Entity 3775	ConversionSeries B Common Stock, par value $0.001 per share · Derivative	113,561	$0.00	$0.00	Disclosure SEC source: 0001415889-24-023518 · form4-09172024_080927.xml · derivative · entry 3 SUMMIT PARTNERS L P · CIK 0000830588 · 10% owner Summit Partners Growth Equity Fund IX-A, L.P. · CIK 0001634415 · 10% owner Summit Partners Growth Equity Fund IX-B, L.P. · CIK 0001634426 · 10% owner Summit Partners Co-Invest (Kiwi), LP · CIK 0001830877 · 10% owner SUMMIT INVESTORS GE IX/VC IV, LLC · CIK 0001654074 · 10% owner SUMMIT INVESTORS GE IX/VC IV (UK), L.P. · CIK 0001846709 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See footnote Disclosed balance after: 46,427,778 Underlying: Series A Common Stock, par value $0.001 per share · 113,561 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation. On September 13, 2024, the reporting persons directed the sale of an aggregate of 113,561 shares of their Series B Common Stock, resulting in the automatic conversion of the shares into Series A Common Stock upon execution of the sale. F1 · derivative.exercise_date: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation. On September 13, 2024, the reporting persons directed the sale of an aggregate of 113,561 shares of their Series B Common Stock, resulting in the automatic conversion of the shares into Series A Common Stock upon execution of the sale. F1 · derivative.expiration_date: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation. On September 13, 2024, the reporting persons directed the sale of an aggregate of 113,561 shares of their Series B Common Stock, resulting in the automatic conversion of the shares into Series A Common Stock upon execution of the sale. F5 · balance_after: Consists of (i) 27,439,856 shares of Series B Common Stock held by Fund IX-A, (ii) 17,133,061 shares of Series B Common Stock held by Fund IX-B, (iii) 1,691,926 shares of Series B Common Stock held by Kiwi Co-Invest Fund, (iv) 144,217 shares of Series B Common Stock held by Fund IX/VC IV, and (v) 18,718 shares of Series B Common Stock held by Fund IX/VC IV (UK). F2 · ownership.nature: Summit Partners, L.P. is the manager of Summit Partners GE IX, LLC, which is the general partner of Summit Partners GE IX, LP, which is the general partner of Summit Partners Growth Equity Fund IX-A, L.P. ("Fund IX-A") and Summit Partners Growth Equity Fund IX-B, L.P. ("Fund IX-B"). Summit Partners, L.P. is the managing member of Summit Partners Co-Invest Kiwi GP, LLC, which is the general partner of Summit Partners Co-Invest (Kiwi), L.P. ("Kiwi Co-Invest Fund"). Summit Master Company, LLC is the general partner of Summit Partners, L.P., which is the manager of Summit Investors Management, LLC, which is the manager of Summit Investors GE IX/VC IV, LLC ("Fund IX/VC IV") and the general partner of Summit Investors GE IX/VC IV (UK), L.P. ("Fund IX/VC IV (UK)"). F3 · ownership.nature: (continued from footnote 2) Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC, has delegated voting and investment decisions with respect to the Series B Common Stock held by Fund IX/VC IV and Fund IX/VC IV (UK) to Summit Partners, L.P. F4 · ownership.nature: The investment committee of Summit Partners, L.P., is currently composed of Peter Y. Chung, Scott C. Collins, and Peter L. Rottier, who may be deemed to have voting and dispositive authority over, and therefore beneficial ownership of, the reported securities. Each of the foregoing entities, Mr. Chung, Mr. Collins, and Mr. Rottier disclaims beneficial ownership of the shares, except to the extent of such person's or entity's pecuniary interest therein and the filing of this statement shall not be deemed an admission that any of the foregoing entities or persons are, for purposes of Section 16 of the Act or otherwise, the beneficial owner of any equity securities covered by this statement. Read SEC document
September 13, 2024 Filed Sep 17, 2024 20:23 UTC	Klaviyo, Inc. KVYO · Entity 3775	SaleSeries A Common Stock, par value $0.001 per share	113,561	$31.47	$3,573,764.67	Disclosure SEC source: 0001415889-24-023518 · form4-09172024_080927.xml · nonDerivative · entry 2 SUMMIT PARTNERS L P · CIK 0000830588 · 10% owner Summit Partners Growth Equity Fund IX-A, L.P. · CIK 0001634415 · 10% owner Summit Partners Growth Equity Fund IX-B, L.P. · CIK 0001634426 · 10% owner Summit Partners Co-Invest (Kiwi), LP · CIK 0001830877 · 10% owner SUMMIT INVESTORS GE IX/VC IV, LLC · CIK 0001654074 · 10% owner SUMMIT INVESTORS GE IX/VC IV (UK), L.P. · CIK 0001846709 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See footnote Disclosed balance after: 0 F2 · ownership.nature: Summit Partners, L.P. is the manager of Summit Partners GE IX, LLC, which is the general partner of Summit Partners GE IX, LP, which is the general partner of Summit Partners Growth Equity Fund IX-A, L.P. ("Fund IX-A") and Summit Partners Growth Equity Fund IX-B, L.P. ("Fund IX-B"). Summit Partners, L.P. is the managing member of Summit Partners Co-Invest Kiwi GP, LLC, which is the general partner of Summit Partners Co-Invest (Kiwi), L.P. ("Kiwi Co-Invest Fund"). Summit Master Company, LLC is the general partner of Summit Partners, L.P., which is the manager of Summit Investors Management, LLC, which is the manager of Summit Investors GE IX/VC IV, LLC ("Fund IX/VC IV") and the general partner of Summit Investors GE IX/VC IV (UK), L.P. ("Fund IX/VC IV (UK)"). F3 · ownership.nature: (continued from footnote 2) Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC, has delegated voting and investment decisions with respect to the Series B Common Stock held by Fund IX/VC IV and Fund IX/VC IV (UK) to Summit Partners, L.P. F4 · ownership.nature: The investment committee of Summit Partners, L.P., is currently composed of Peter Y. Chung, Scott C. Collins, and Peter L. Rottier, who may be deemed to have voting and dispositive authority over, and therefore beneficial ownership of, the reported securities. Each of the foregoing entities, Mr. Chung, Mr. Collins, and Mr. Rottier disclaims beneficial ownership of the shares, except to the extent of such person's or entity's pecuniary interest therein and the filing of this statement shall not be deemed an admission that any of the foregoing entities or persons are, for purposes of Section 16 of the Act or otherwise, the beneficial owner of any equity securities covered by this statement. Read SEC document
September 13, 2024 Filed Sep 17, 2024 20:23 UTC	Klaviyo, Inc. KVYO · Entity 3775	ConversionSeries A Common Stock, par value $0.001 per share	113,561	Not disclosed	Not disclosed	Disclosure SEC source: 0001415889-24-023518 · form4-09172024_080927.xml · nonDerivative · entry 1 SUMMIT PARTNERS L P · CIK 0000830588 · 10% owner Summit Partners Growth Equity Fund IX-A, L.P. · CIK 0001634415 · 10% owner Summit Partners Growth Equity Fund IX-B, L.P. · CIK 0001634426 · 10% owner Summit Partners Co-Invest (Kiwi), LP · CIK 0001830877 · 10% owner SUMMIT INVESTORS GE IX/VC IV, LLC · CIK 0001654074 · 10% owner SUMMIT INVESTORS GE IX/VC IV (UK), L.P. · CIK 0001846709 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See footnote Disclosed balance after: 113,561 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation. On September 13, 2024, the reporting persons directed the sale of an aggregate of 113,561 shares of their Series B Common Stock, resulting in the automatic conversion of the shares into Series A Common Stock upon execution of the sale. F2 · ownership.nature: Summit Partners, L.P. is the manager of Summit Partners GE IX, LLC, which is the general partner of Summit Partners GE IX, LP, which is the general partner of Summit Partners Growth Equity Fund IX-A, L.P. ("Fund IX-A") and Summit Partners Growth Equity Fund IX-B, L.P. ("Fund IX-B"). Summit Partners, L.P. is the managing member of Summit Partners Co-Invest Kiwi GP, LLC, which is the general partner of Summit Partners Co-Invest (Kiwi), L.P. ("Kiwi Co-Invest Fund"). Summit Master Company, LLC is the general partner of Summit Partners, L.P., which is the manager of Summit Investors Management, LLC, which is the manager of Summit Investors GE IX/VC IV, LLC ("Fund IX/VC IV") and the general partner of Summit Investors GE IX/VC IV (UK), L.P. ("Fund IX/VC IV (UK)"). F3 · ownership.nature: (continued from footnote 2) Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC, has delegated voting and investment decisions with respect to the Series B Common Stock held by Fund IX/VC IV and Fund IX/VC IV (UK) to Summit Partners, L.P. F4 · ownership.nature: The investment committee of Summit Partners, L.P., is currently composed of Peter Y. Chung, Scott C. Collins, and Peter L. Rottier, who may be deemed to have voting and dispositive authority over, and therefore beneficial ownership of, the reported securities. Each of the foregoing entities, Mr. Chung, Mr. Collins, and Mr. Rottier disclaims beneficial ownership of the shares, except to the extent of such person's or entity's pecuniary interest therein and the filing of this statement shall not be deemed an admission that any of the foregoing entities or persons are, for purposes of Section 16 of the Act or otherwise, the beneficial owner of any equity securities covered by this statement. Read SEC document
September 12, 2024 Filed Sep 16, 2024 21:05 UTC	Klaviyo, Inc. KVYO · Entity 3775	ConversionSeries B Common Stock, par value $0.001 per share · Derivative	107,205	$0.00	$0.00	Disclosure SEC source: 0001415889-24-023447 · form4-09162024_090941.xml · derivative · entry 3 SUMMIT PARTNERS L P · CIK 0000830588 · 10% owner Summit Partners Growth Equity Fund IX-A, L.P. · CIK 0001634415 · 10% owner Summit Partners Growth Equity Fund IX-B, L.P. · CIK 0001634426 · 10% owner Summit Partners Co-Invest (Kiwi), LP · CIK 0001830877 · 10% owner SUMMIT INVESTORS GE IX/VC IV, LLC · CIK 0001654074 · 10% owner SUMMIT INVESTORS GE IX/VC IV (UK), L.P. · CIK 0001846709 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See footnote Disclosed balance after: 46,541,339 Underlying: Series A Common Stock, par value $0.001 per share · 107,205 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation. On September 12, 2024, the reporting persons directed the sale of an aggregate of 107,205 shares of their Series B Common Stock, resulting in the automatic conversion of the shares into Series A Common Stock upon execution of the sale. F1 · derivative.exercise_date: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation. On September 12, 2024, the reporting persons directed the sale of an aggregate of 107,205 shares of their Series B Common Stock, resulting in the automatic conversion of the shares into Series A Common Stock upon execution of the sale. F1 · derivative.expiration_date: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation. On September 12, 2024, the reporting persons directed the sale of an aggregate of 107,205 shares of their Series B Common Stock, resulting in the automatic conversion of the shares into Series A Common Stock upon execution of the sale. F5 · balance_after: Consists of (i) 27,506,973 shares of Series B Common Stock held by Fund IX-A, (ii) 17,174,968 shares of Series B Common Stock held by Fund IX-B, (iii) 1,696,064 shares of Series B Common Stock held by Kiwi Co-Invest Fund, (iv) 144,570 shares of Series B Common Stock held by Fund IX/VC IV, and (v) 18,764 shares of Series B Common Stock held by Fund IX/VC IV (UK). F2 · ownership.nature: Summit Partners, L.P. is the manager of Summit Partners GE IX, LLC, which is the general partner of Summit Partners GE IX, LP, which is the general partner of Summit Partners Growth Equity Fund IX-A, L.P. ("Fund IX-A") and Summit Partners Growth Equity Fund IX-B, L.P. ("Fund IX-B"). Summit Partners, L.P. is the managing member of Summit Partners Co-Invest Kiwi GP, LLC, which is the general partner of Summit Partners Co-Invest (Kiwi), L.P. ("Kiwi Co-Invest Fund"). Summit Master Company, LLC is the general partner of Summit Partners, L.P., which is the manager of Summit Investors Management, LLC, which is the manager of Summit Investors GE IX/VC IV, LLC ("Fund IX/VC IV") and the general partner of Summit Investors GE IX/VC IV (UK), L.P. ("Fund IX/VC IV (UK)"). F3 · ownership.nature: (continued from footnote 2) Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC, has delegated voting and investment decisions with respect to the Series B Common Stock held by Fund IX/VC IV and Fund IX/VC IV (UK) to Summit Partners, L.P. F4 · ownership.nature: The investment committee of Summit Partners, L.P., is currently composed of Peter Y. Chung, Scott C. Collins, and Peter L. Rottier, who may be deemed to have voting and dispositive authority over, and therefore beneficial ownership of, the reported securities. Each of the foregoing entities, Mr. Chung, Mr. Collins, and Mr. Rottier disclaims beneficial ownership of the shares, except to the extent of such person's or entity's pecuniary interest therein and the filing of this statement shall not be deemed an admission that any of the foregoing entities or persons are, for purposes of Section 16 of the Act or otherwise, the beneficial owner of any equity securities covered by this statement. Read SEC document
September 12, 2024 Filed Sep 16, 2024 21:05 UTC	Klaviyo, Inc. KVYO · Entity 3775	SaleSeries A Common Stock, par value $0.001 per share	107,205	$31.33	$3,358,732.65	Disclosure SEC source: 0001415889-24-023447 · form4-09162024_090941.xml · nonDerivative · entry 2 SUMMIT PARTNERS L P · CIK 0000830588 · 10% owner Summit Partners Growth Equity Fund IX-A, L.P. · CIK 0001634415 · 10% owner Summit Partners Growth Equity Fund IX-B, L.P. · CIK 0001634426 · 10% owner Summit Partners Co-Invest (Kiwi), LP · CIK 0001830877 · 10% owner SUMMIT INVESTORS GE IX/VC IV, LLC · CIK 0001654074 · 10% owner SUMMIT INVESTORS GE IX/VC IV (UK), L.P. · CIK 0001846709 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See footnote Disclosed balance after: 0 F2 · ownership.nature: Summit Partners, L.P. is the manager of Summit Partners GE IX, LLC, which is the general partner of Summit Partners GE IX, LP, which is the general partner of Summit Partners Growth Equity Fund IX-A, L.P. ("Fund IX-A") and Summit Partners Growth Equity Fund IX-B, L.P. ("Fund IX-B"). Summit Partners, L.P. is the managing member of Summit Partners Co-Invest Kiwi GP, LLC, which is the general partner of Summit Partners Co-Invest (Kiwi), L.P. ("Kiwi Co-Invest Fund"). Summit Master Company, LLC is the general partner of Summit Partners, L.P., which is the manager of Summit Investors Management, LLC, which is the manager of Summit Investors GE IX/VC IV, LLC ("Fund IX/VC IV") and the general partner of Summit Investors GE IX/VC IV (UK), L.P. ("Fund IX/VC IV (UK)"). F3 · ownership.nature: (continued from footnote 2) Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC, has delegated voting and investment decisions with respect to the Series B Common Stock held by Fund IX/VC IV and Fund IX/VC IV (UK) to Summit Partners, L.P. F4 · ownership.nature: The investment committee of Summit Partners, L.P., is currently composed of Peter Y. Chung, Scott C. Collins, and Peter L. Rottier, who may be deemed to have voting and dispositive authority over, and therefore beneficial ownership of, the reported securities. Each of the foregoing entities, Mr. Chung, Mr. Collins, and Mr. Rottier disclaims beneficial ownership of the shares, except to the extent of such person's or entity's pecuniary interest therein and the filing of this statement shall not be deemed an admission that any of the foregoing entities or persons are, for purposes of Section 16 of the Act or otherwise, the beneficial owner of any equity securities covered by this statement. Read SEC document
September 12, 2024 Filed Sep 16, 2024 21:05 UTC	Klaviyo, Inc. KVYO · Entity 3775	ConversionSeries A Common Stock, par value $0.001 per share	107,205	Not disclosed	Not disclosed	Disclosure SEC source: 0001415889-24-023447 · form4-09162024_090941.xml · nonDerivative · entry 1 SUMMIT PARTNERS L P · CIK 0000830588 · 10% owner Summit Partners Growth Equity Fund IX-A, L.P. · CIK 0001634415 · 10% owner Summit Partners Growth Equity Fund IX-B, L.P. · CIK 0001634426 · 10% owner Summit Partners Co-Invest (Kiwi), LP · CIK 0001830877 · 10% owner SUMMIT INVESTORS GE IX/VC IV, LLC · CIK 0001654074 · 10% owner SUMMIT INVESTORS GE IX/VC IV (UK), L.P. · CIK 0001846709 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See footnote Disclosed balance after: 107,205 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation. On September 12, 2024, the reporting persons directed the sale of an aggregate of 107,205 shares of their Series B Common Stock, resulting in the automatic conversion of the shares into Series A Common Stock upon execution of the sale. F2 · ownership.nature: Summit Partners, L.P. is the manager of Summit Partners GE IX, LLC, which is the general partner of Summit Partners GE IX, LP, which is the general partner of Summit Partners Growth Equity Fund IX-A, L.P. ("Fund IX-A") and Summit Partners Growth Equity Fund IX-B, L.P. ("Fund IX-B"). Summit Partners, L.P. is the managing member of Summit Partners Co-Invest Kiwi GP, LLC, which is the general partner of Summit Partners Co-Invest (Kiwi), L.P. ("Kiwi Co-Invest Fund"). Summit Master Company, LLC is the general partner of Summit Partners, L.P., which is the manager of Summit Investors Management, LLC, which is the manager of Summit Investors GE IX/VC IV, LLC ("Fund IX/VC IV") and the general partner of Summit Investors GE IX/VC IV (UK), L.P. ("Fund IX/VC IV (UK)"). F3 · ownership.nature: (continued from footnote 2) Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC, has delegated voting and investment decisions with respect to the Series B Common Stock held by Fund IX/VC IV and Fund IX/VC IV (UK) to Summit Partners, L.P. F4 · ownership.nature: The investment committee of Summit Partners, L.P., is currently composed of Peter Y. Chung, Scott C. Collins, and Peter L. Rottier, who may be deemed to have voting and dispositive authority over, and therefore beneficial ownership of, the reported securities. Each of the foregoing entities, Mr. Chung, Mr. Collins, and Mr. Rottier disclaims beneficial ownership of the shares, except to the extent of such person's or entity's pecuniary interest therein and the filing of this statement shall not be deemed an admission that any of the foregoing entities or persons are, for purposes of Section 16 of the Act or otherwise, the beneficial owner of any equity securities covered by this statement. Read SEC document
September 11, 2024 Filed Sep 13, 2024 20:01 UTC	Klaviyo, Inc. KVYO · Entity 3775	ConversionSeries B Common Stock, par value $0.001 per share · Derivative	2,942	$0.00	$0.00	Disclosure SEC source: 0001415889-24-023354 · form4-09132024_080920.xml · derivative · entry 3 SUMMIT PARTNERS L P · CIK 0000830588 · 10% owner Summit Partners Growth Equity Fund IX-A, L.P. · CIK 0001634415 · 10% owner Summit Partners Growth Equity Fund IX-B, L.P. · CIK 0001634426 · 10% owner Summit Partners Co-Invest (Kiwi), LP · CIK 0001830877 · 10% owner SUMMIT INVESTORS GE IX/VC IV, LLC · CIK 0001654074 · 10% owner SUMMIT INVESTORS GE IX/VC IV (UK), L.P. · CIK 0001846709 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See footnote Disclosed balance after: 46,648,544 Underlying: Series A Common Stock, par value $0.001 per share · 2,942 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation. On September 11, 2024, the reporting persons directed the sale of an aggregate of 2,942 shares of their Series B Common Stock, resulting in the automatic conversion of the shares into Series A Common Stock upon execution of the sale. F1 · derivative.exercise_date: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation. On September 11, 2024, the reporting persons directed the sale of an aggregate of 2,942 shares of their Series B Common Stock, resulting in the automatic conversion of the shares into Series A Common Stock upon execution of the sale. F1 · derivative.expiration_date: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation. On September 11, 2024, the reporting persons directed the sale of an aggregate of 2,942 shares of their Series B Common Stock, resulting in the automatic conversion of the shares into Series A Common Stock upon execution of the sale. F5 · balance_after: Consists of (i) 27,570,334 shares of Series B Common Stock held by Fund IX-A, (ii) 17,214,529 shares of Series B Common Stock held by Fund IX-B, (iii) 1,699,971 shares of Series B Common Stock held by Kiwi Co-Invest Fund, (iv) 144,903 shares of Series B Common Stock held by Fund IX/VC IV, and (v) 18,807 shares of Series B Common Stock held by Fund IX/VC IV (UK). F2 · ownership.nature: Summit Partners, L.P. is the manager of Summit Partners GE IX, LLC, which is the general partner of Summit Partners GE IX, LP, which is the general partner of Summit Partners Growth Equity Fund IX-A, L.P. ("Fund IX-A") and Summit Partners Growth Equity Fund IX-B, L.P. ("Fund IX-B"). Summit Partners, L.P. is the managing member of Summit Partners Co-Invest Kiwi GP, LLC, which is the general partner of Summit Partners Co-Invest (Kiwi), L.P. ("Kiwi Co-Invest Fund"). Summit Master Company, LLC is the general partner of Summit Partners, L.P., which is the manager of Summit Investors Management, LLC, which is the manager of Summit Investors GE IX/VC IV, LLC ("Fund IX/VC IV") and the general partner of Summit Investors GE IX/VC IV (UK), L.P. ("Fund IX/VC IV (UK)"). F3 · ownership.nature: (continued from footnote 2) Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC, has delegated voting and investment decisions with respect to the Series B Common Stock held by Fund IX/VC IV and Fund IX/VC IV (UK) to Summit Partners, L.P. F4 · ownership.nature: The investment committee of Summit Partners, L.P., is currently composed of Peter Y. Chung, Scott C. Collins, and Peter L. Rottier, who may be deemed to have voting and dispositive authority over, and therefore beneficial ownership of, the reported securities. Each of the foregoing entities, Mr. Chung, Mr. Collins, and Mr. Rottier disclaims beneficial ownership of the shares, except to the extent of such person's or entity's pecuniary interest therein and the filing of this statement shall not be deemed an admission that any of the foregoing entities or persons are, for purposes of Section 16 of the Act or otherwise, the beneficial owner of any equity securities covered by this statement. Read SEC document
September 11, 2024 Filed Sep 13, 2024 20:01 UTC	Klaviyo, Inc. KVYO · Entity 3775	SaleSeries A Common Stock, par value $0.001 per share	2,942	$31.01	$91,231.42	Disclosure SEC source: 0001415889-24-023354 · form4-09132024_080920.xml · nonDerivative · entry 2 SUMMIT PARTNERS L P · CIK 0000830588 · 10% owner Summit Partners Growth Equity Fund IX-A, L.P. · CIK 0001634415 · 10% owner Summit Partners Growth Equity Fund IX-B, L.P. · CIK 0001634426 · 10% owner Summit Partners Co-Invest (Kiwi), LP · CIK 0001830877 · 10% owner SUMMIT INVESTORS GE IX/VC IV, LLC · CIK 0001654074 · 10% owner SUMMIT INVESTORS GE IX/VC IV (UK), L.P. · CIK 0001846709 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See footnote Disclosed balance after: 0 F2 · ownership.nature: Summit Partners, L.P. is the manager of Summit Partners GE IX, LLC, which is the general partner of Summit Partners GE IX, LP, which is the general partner of Summit Partners Growth Equity Fund IX-A, L.P. ("Fund IX-A") and Summit Partners Growth Equity Fund IX-B, L.P. ("Fund IX-B"). Summit Partners, L.P. is the managing member of Summit Partners Co-Invest Kiwi GP, LLC, which is the general partner of Summit Partners Co-Invest (Kiwi), L.P. ("Kiwi Co-Invest Fund"). Summit Master Company, LLC is the general partner of Summit Partners, L.P., which is the manager of Summit Investors Management, LLC, which is the manager of Summit Investors GE IX/VC IV, LLC ("Fund IX/VC IV") and the general partner of Summit Investors GE IX/VC IV (UK), L.P. ("Fund IX/VC IV (UK)"). F3 · ownership.nature: (continued from footnote 2) Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC, has delegated voting and investment decisions with respect to the Series B Common Stock held by Fund IX/VC IV and Fund IX/VC IV (UK) to Summit Partners, L.P. F4 · ownership.nature: The investment committee of Summit Partners, L.P., is currently composed of Peter Y. Chung, Scott C. Collins, and Peter L. Rottier, who may be deemed to have voting and dispositive authority over, and therefore beneficial ownership of, the reported securities. Each of the foregoing entities, Mr. Chung, Mr. Collins, and Mr. Rottier disclaims beneficial ownership of the shares, except to the extent of such person's or entity's pecuniary interest therein and the filing of this statement shall not be deemed an admission that any of the foregoing entities or persons are, for purposes of Section 16 of the Act or otherwise, the beneficial owner of any equity securities covered by this statement. Read SEC document
September 11, 2024 Filed Sep 13, 2024 20:01 UTC	Klaviyo, Inc. KVYO · Entity 3775	ConversionSeries A Common Stock, par value $0.001 per share	2,942	Not disclosed	Not disclosed	Disclosure SEC source: 0001415889-24-023354 · form4-09132024_080920.xml · nonDerivative · entry 1 SUMMIT PARTNERS L P · CIK 0000830588 · 10% owner Summit Partners Growth Equity Fund IX-A, L.P. · CIK 0001634415 · 10% owner Summit Partners Growth Equity Fund IX-B, L.P. · CIK 0001634426 · 10% owner Summit Partners Co-Invest (Kiwi), LP · CIK 0001830877 · 10% owner SUMMIT INVESTORS GE IX/VC IV, LLC · CIK 0001654074 · 10% owner SUMMIT INVESTORS GE IX/VC IV (UK), L.P. · CIK 0001846709 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See footnote Disclosed balance after: 2,942 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation. On September 11, 2024, the reporting persons directed the sale of an aggregate of 2,942 shares of their Series B Common Stock, resulting in the automatic conversion of the shares into Series A Common Stock upon execution of the sale. F2 · ownership.nature: Summit Partners, L.P. is the manager of Summit Partners GE IX, LLC, which is the general partner of Summit Partners GE IX, LP, which is the general partner of Summit Partners Growth Equity Fund IX-A, L.P. ("Fund IX-A") and Summit Partners Growth Equity Fund IX-B, L.P. ("Fund IX-B"). Summit Partners, L.P. is the managing member of Summit Partners Co-Invest Kiwi GP, LLC, which is the general partner of Summit Partners Co-Invest (Kiwi), L.P. ("Kiwi Co-Invest Fund"). Summit Master Company, LLC is the general partner of Summit Partners, L.P., which is the manager of Summit Investors Management, LLC, which is the manager of Summit Investors GE IX/VC IV, LLC ("Fund IX/VC IV") and the general partner of Summit Investors GE IX/VC IV (UK), L.P. ("Fund IX/VC IV (UK)"). F3 · ownership.nature: (continued from footnote 2) Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC, has delegated voting and investment decisions with respect to the Series B Common Stock held by Fund IX/VC IV and Fund IX/VC IV (UK) to Summit Partners, L.P. F4 · ownership.nature: The investment committee of Summit Partners, L.P., is currently composed of Peter Y. Chung, Scott C. Collins, and Peter L. Rottier, who may be deemed to have voting and dispositive authority over, and therefore beneficial ownership of, the reported securities. Each of the foregoing entities, Mr. Chung, Mr. Collins, and Mr. Rottier disclaims beneficial ownership of the shares, except to the extent of such person's or entity's pecuniary interest therein and the filing of this statement shall not be deemed an admission that any of the foregoing entities or persons are, for purposes of Section 16 of the Act or otherwise, the beneficial owner of any equity securities covered by this statement. Read SEC document
September 03, 2024 Filed Sep 5, 2024 20:00 UTC	Klaviyo, Inc. KVYO · Entity 3775	ConversionSeries B Common Stock, par value $0.001 per share · Derivative	6,039	$0.00	$0.00	Disclosure SEC source: 0001415889-24-022891 · form4-09052024_080933.xml · derivative · entry 3 SUMMIT PARTNERS L P · CIK 0000830588 · 10% owner Summit Partners Growth Equity Fund IX-A, L.P. · CIK 0001634415 · 10% owner Summit Partners Growth Equity Fund IX-B, L.P. · CIK 0001634426 · 10% owner Summit Partners Co-Invest (Kiwi), LP · CIK 0001830877 · 10% owner SUMMIT INVESTORS GE IX/VC IV, LLC · CIK 0001654074 · 10% owner SUMMIT INVESTORS GE IX/VC IV (UK), L.P. · CIK 0001846709 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See footnote Disclosed balance after: 46,651,486 Underlying: Series A Common Stock, par value $0.001 per share · 6,039 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation. On September 3, 2024, the reporting persons directed the sale of an aggregate of 6,039 shares of their Series B Common Stock, resulting in the automatic conversion of the shares into Series A Common Stock upon execution of the sale. F1 · derivative.exercise_date: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation. On September 3, 2024, the reporting persons directed the sale of an aggregate of 6,039 shares of their Series B Common Stock, resulting in the automatic conversion of the shares into Series A Common Stock upon execution of the sale. F1 · derivative.expiration_date: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation. On September 3, 2024, the reporting persons directed the sale of an aggregate of 6,039 shares of their Series B Common Stock, resulting in the automatic conversion of the shares into Series A Common Stock upon execution of the sale. F5 · balance_after: Consists of (i) 27,572,073 shares of Series B Common Stock held by Fund IX-A, (ii) 17,215,614 shares of Series B Common Stock held by Fund IX-B, (iii) 1,700,078 shares of Series B Common Stock held by Kiwi Co-Invest Fund, (iv) 144,912 shares of Series B Common Stock held by Fund IX/VC IV, and (v) 18,809 shares of Series B Common Stock held by Fund IX/VC IV (UK). F2 · ownership.nature: Summit Partners, L.P. is the manager of Summit Partners GE IX, LLC, which is the general partner of Summit Partners GE IX, LP, which is the general partner of Summit Partners Growth Equity Fund IX-A, L.P. ("Fund IX-A") and Summit Partners Growth Equity Fund IX-B, L.P. ("Fund IX-B"). Summit Partners, L.P. is the managing member of Summit Partners Co-Invest Kiwi GP, LLC, which is the general partner of Summit Partners Co-Invest (Kiwi), L.P. ("Kiwi Co-Invest Fund"). Summit Master Company, LLC is the general partner of Summit Partners, L.P., which is the manager of Summit Investors Management, LLC, which is the manager of Summit Investors GE IX/VC IV, LLC ("Fund IX/VC IV") and the general partner of Summit Investors GE IX/VC IV (UK), L.P. ("Fund IX/VC IV (UK)"). F3 · ownership.nature: (continued from footnote 2) Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC, has delegated voting and investment decisions with respect to the Series B Common Stock held by Fund IX/VC IV and Fund IX/VC IV (UK) to Summit Partners, L.P. F4 · ownership.nature: The investment committee of Summit Partners, L.P., is currently composed of Peter Y. Chung, Scott C. Collins, and Peter L. Rottier, who may be deemed to have voting and dispositive authority over, and therefore beneficial ownership of, the reported securities. Each of the foregoing entities, Mr. Chung, Mr. Collins, and Mr. Rottier disclaims beneficial ownership of the shares, except to the extent of such person's or entity's pecuniary interest therein and the filing of this statement shall not be deemed an admission that any of the foregoing entities or persons are, for purposes of Section 16 of the Act or otherwise, the beneficial owner of any equity securities covered by this statement. Read SEC document
September 03, 2024 Filed Sep 5, 2024 20:00 UTC	Klaviyo, Inc. KVYO · Entity 3775	SaleSeries A Common Stock, par value $0.001 per share	6,039	$31.53	$190,409.67	Disclosure SEC source: 0001415889-24-022891 · form4-09052024_080933.xml · nonDerivative · entry 2 SUMMIT PARTNERS L P · CIK 0000830588 · 10% owner Summit Partners Growth Equity Fund IX-A, L.P. · CIK 0001634415 · 10% owner Summit Partners Growth Equity Fund IX-B, L.P. · CIK 0001634426 · 10% owner Summit Partners Co-Invest (Kiwi), LP · CIK 0001830877 · 10% owner SUMMIT INVESTORS GE IX/VC IV, LLC · CIK 0001654074 · 10% owner SUMMIT INVESTORS GE IX/VC IV (UK), L.P. · CIK 0001846709 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See footnote Disclosed balance after: 0 F2 · ownership.nature: Summit Partners, L.P. is the manager of Summit Partners GE IX, LLC, which is the general partner of Summit Partners GE IX, LP, which is the general partner of Summit Partners Growth Equity Fund IX-A, L.P. ("Fund IX-A") and Summit Partners Growth Equity Fund IX-B, L.P. ("Fund IX-B"). Summit Partners, L.P. is the managing member of Summit Partners Co-Invest Kiwi GP, LLC, which is the general partner of Summit Partners Co-Invest (Kiwi), L.P. ("Kiwi Co-Invest Fund"). Summit Master Company, LLC is the general partner of Summit Partners, L.P., which is the manager of Summit Investors Management, LLC, which is the manager of Summit Investors GE IX/VC IV, LLC ("Fund IX/VC IV") and the general partner of Summit Investors GE IX/VC IV (UK), L.P. ("Fund IX/VC IV (UK)"). F3 · ownership.nature: (continued from footnote 2) Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC, has delegated voting and investment decisions with respect to the Series B Common Stock held by Fund IX/VC IV and Fund IX/VC IV (UK) to Summit Partners, L.P. F4 · ownership.nature: The investment committee of Summit Partners, L.P., is currently composed of Peter Y. Chung, Scott C. Collins, and Peter L. Rottier, who may be deemed to have voting and dispositive authority over, and therefore beneficial ownership of, the reported securities. Each of the foregoing entities, Mr. Chung, Mr. Collins, and Mr. Rottier disclaims beneficial ownership of the shares, except to the extent of such person's or entity's pecuniary interest therein and the filing of this statement shall not be deemed an admission that any of the foregoing entities or persons are, for purposes of Section 16 of the Act or otherwise, the beneficial owner of any equity securities covered by this statement. Read SEC document
September 03, 2024 Filed Sep 5, 2024 20:00 UTC	Klaviyo, Inc. KVYO · Entity 3775	ConversionSeries A Common Stock, par value $0.001 per share	6,039	Not disclosed	Not disclosed	Disclosure SEC source: 0001415889-24-022891 · form4-09052024_080933.xml · nonDerivative · entry 1 SUMMIT PARTNERS L P · CIK 0000830588 · 10% owner Summit Partners Growth Equity Fund IX-A, L.P. · CIK 0001634415 · 10% owner Summit Partners Growth Equity Fund IX-B, L.P. · CIK 0001634426 · 10% owner Summit Partners Co-Invest (Kiwi), LP · CIK 0001830877 · 10% owner SUMMIT INVESTORS GE IX/VC IV, LLC · CIK 0001654074 · 10% owner SUMMIT INVESTORS GE IX/VC IV (UK), L.P. · CIK 0001846709 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See footnote Disclosed balance after: 6,039 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation. On September 3, 2024, the reporting persons directed the sale of an aggregate of 6,039 shares of their Series B Common Stock, resulting in the automatic conversion of the shares into Series A Common Stock upon execution of the sale. F2 · ownership.nature: Summit Partners, L.P. is the manager of Summit Partners GE IX, LLC, which is the general partner of Summit Partners GE IX, LP, which is the general partner of Summit Partners Growth Equity Fund IX-A, L.P. ("Fund IX-A") and Summit Partners Growth Equity Fund IX-B, L.P. ("Fund IX-B"). Summit Partners, L.P. is the managing member of Summit Partners Co-Invest Kiwi GP, LLC, which is the general partner of Summit Partners Co-Invest (Kiwi), L.P. ("Kiwi Co-Invest Fund"). Summit Master Company, LLC is the general partner of Summit Partners, L.P., which is the manager of Summit Investors Management, LLC, which is the manager of Summit Investors GE IX/VC IV, LLC ("Fund IX/VC IV") and the general partner of Summit Investors GE IX/VC IV (UK), L.P. ("Fund IX/VC IV (UK)"). F3 · ownership.nature: (continued from footnote 2) Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC, has delegated voting and investment decisions with respect to the Series B Common Stock held by Fund IX/VC IV and Fund IX/VC IV (UK) to Summit Partners, L.P. F4 · ownership.nature: The investment committee of Summit Partners, L.P., is currently composed of Peter Y. Chung, Scott C. Collins, and Peter L. Rottier, who may be deemed to have voting and dispositive authority over, and therefore beneficial ownership of, the reported securities. Each of the foregoing entities, Mr. Chung, Mr. Collins, and Mr. Rottier disclaims beneficial ownership of the shares, except to the extent of such person's or entity's pecuniary interest therein and the filing of this statement shall not be deemed an admission that any of the foregoing entities or persons are, for purposes of Section 16 of the Act or otherwise, the beneficial owner of any equity securities covered by this statement. Read SEC document
August 30, 2024 Filed Sep 4, 2024 21:40 UTC	Klaviyo, Inc. KVYO · Entity 3775	ConversionSeries B Common Stock, par value $0.001 per share · Derivative	1,300	$0.00	$0.00	Disclosure SEC source: 0001415889-24-022793 · form4-09042024_080932.xml · derivative · entry 3 SUMMIT PARTNERS L P · CIK 0000830588 · 10% owner Summit Partners Growth Equity Fund IX-A, L.P. · CIK 0001634415 · 10% owner Summit Partners Growth Equity Fund IX-B, L.P. · CIK 0001634426 · 10% owner Summit Partners Co-Invest (Kiwi), LP · CIK 0001830877 · 10% owner SUMMIT INVESTORS GE IX/VC IV, LLC · CIK 0001654074 · 10% owner SUMMIT INVESTORS GE IX/VC IV (UK), L.P. · CIK 0001846709 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See footnote Disclosed balance after: 46,657,525 Underlying: Series A Common Stock, par value $0.001 per share · 1,300 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation. On August 30, 2024, the reporting persons directed the sale of an aggregate of 1,300 shares of their Series B Common Stock, resulting in the automatic conversion of the shares into Series A Common Stock upon execution of the sale. F1 · derivative.exercise_date: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation. On August 30, 2024, the reporting persons directed the sale of an aggregate of 1,300 shares of their Series B Common Stock, resulting in the automatic conversion of the shares into Series A Common Stock upon execution of the sale. F1 · derivative.expiration_date: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation. On August 30, 2024, the reporting persons directed the sale of an aggregate of 1,300 shares of their Series B Common Stock, resulting in the automatic conversion of the shares into Series A Common Stock upon execution of the sale. F5 · balance_after: Consists of (i) 27,575,642 shares of Series B Common Stock held by Fund IX-A, (ii) 17,217,843 shares of Series B Common Stock held by Fund IX-B, (iii) 1,700,298 shares of Series B Common Stock held by Kiwi Co-Invest Fund, (iv) 144,931 shares of Series B Common Stock held by Fund IX/VC IV, and (v) 18,811 shares of Series B Common Stock held by Fund IX/VC IV (UK). F2 · ownership.nature: Summit Partners, L.P. is the manager of Summit Partners GE IX, LLC, which is the general partner of Summit Partners GE IX, LP, which is the general partner of Summit Partners Growth Equity Fund IX-A, L.P. ("Fund IX-A") and Summit Partners Growth Equity Fund IX-B, L.P. ("Fund IX-B"). Summit Partners, L.P. is the managing member of Summit Partners Co-Invest Kiwi GP, LLC, which is the general partner of Summit Partners Co-Invest (Kiwi), L.P. ("Kiwi Co-Invest Fund"). Summit Master Company, LLC is the general partner of Summit Partners, L.P., which is the manager of Summit Investors Management, LLC, which is the manager of Summit Investors GE IX/VC IV, LLC ("Fund IX/VC IV") and the general partner of Summit Investors GE IX/VC IV (UK), L.P. ("Fund IX/VC IV (UK)"). F3 · ownership.nature: (continued from footnote 2) Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC, has delegated voting and investment decisions with respect to the Series B Common Stock held by Fund IX/VC IV and Fund IX/VC IV (UK) to Summit Partners, L.P. F4 · ownership.nature: The investment committee of Summit Partners, L.P., is currently composed of Peter Y. Chung, Scott C. Collins, and Peter L. Rottier, who may be deemed to have voting and dispositive authority over, and therefore beneficial ownership of, the reported securities. Each of the foregoing entities, Mr. Chung, Mr. Collins, and Mr. Rottier disclaims beneficial ownership of the shares, except to the extent of such person's or entity's pecuniary interest therein and the filing of this statement shall not be deemed an admission that any of the foregoing entities or persons are, for purposes of Section 16 of the Act or otherwise, the beneficial owner of any equity securities covered by this statement. Read SEC document
August 30, 2024 Filed Sep 4, 2024 21:40 UTC	Klaviyo, Inc. KVYO · Entity 3775	SaleSeries A Common Stock, par value $0.001 per share	1,300	$31.64	$41,132.00	Disclosure SEC source: 0001415889-24-022793 · form4-09042024_080932.xml · nonDerivative · entry 2 SUMMIT PARTNERS L P · CIK 0000830588 · 10% owner Summit Partners Growth Equity Fund IX-A, L.P. · CIK 0001634415 · 10% owner Summit Partners Growth Equity Fund IX-B, L.P. · CIK 0001634426 · 10% owner Summit Partners Co-Invest (Kiwi), LP · CIK 0001830877 · 10% owner SUMMIT INVESTORS GE IX/VC IV, LLC · CIK 0001654074 · 10% owner SUMMIT INVESTORS GE IX/VC IV (UK), L.P. · CIK 0001846709 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See footnote Disclosed balance after: 0 F2 · ownership.nature: Summit Partners, L.P. is the manager of Summit Partners GE IX, LLC, which is the general partner of Summit Partners GE IX, LP, which is the general partner of Summit Partners Growth Equity Fund IX-A, L.P. ("Fund IX-A") and Summit Partners Growth Equity Fund IX-B, L.P. ("Fund IX-B"). Summit Partners, L.P. is the managing member of Summit Partners Co-Invest Kiwi GP, LLC, which is the general partner of Summit Partners Co-Invest (Kiwi), L.P. ("Kiwi Co-Invest Fund"). Summit Master Company, LLC is the general partner of Summit Partners, L.P., which is the manager of Summit Investors Management, LLC, which is the manager of Summit Investors GE IX/VC IV, LLC ("Fund IX/VC IV") and the general partner of Summit Investors GE IX/VC IV (UK), L.P. ("Fund IX/VC IV (UK)"). F3 · ownership.nature: (continued from footnote 2) Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC, has delegated voting and investment decisions with respect to the Series B Common Stock held by Fund IX/VC IV and Fund IX/VC IV (UK) to Summit Partners, L.P. F4 · ownership.nature: The investment committee of Summit Partners, L.P., is currently composed of Peter Y. Chung, Scott C. Collins, and Peter L. Rottier, who may be deemed to have voting and dispositive authority over, and therefore beneficial ownership of, the reported securities. Each of the foregoing entities, Mr. Chung, Mr. Collins, and Mr. Rottier disclaims beneficial ownership of the shares, except to the extent of such person's or entity's pecuniary interest therein and the filing of this statement shall not be deemed an admission that any of the foregoing entities or persons are, for purposes of Section 16 of the Act or otherwise, the beneficial owner of any equity securities covered by this statement. Read SEC document
August 30, 2024 Filed Sep 4, 2024 21:40 UTC	Klaviyo, Inc. KVYO · Entity 3775	ConversionSeries A Common Stock, par value $0.001 per share	1,300	Not disclosed	Not disclosed	Disclosure SEC source: 0001415889-24-022793 · form4-09042024_080932.xml · nonDerivative · entry 1 SUMMIT PARTNERS L P · CIK 0000830588 · 10% owner Summit Partners Growth Equity Fund IX-A, L.P. · CIK 0001634415 · 10% owner Summit Partners Growth Equity Fund IX-B, L.P. · CIK 0001634426 · 10% owner Summit Partners Co-Invest (Kiwi), LP · CIK 0001830877 · 10% owner SUMMIT INVESTORS GE IX/VC IV, LLC · CIK 0001654074 · 10% owner SUMMIT INVESTORS GE IX/VC IV (UK), L.P. · CIK 0001846709 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See footnote Disclosed balance after: 1,300 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation. On August 30, 2024, the reporting persons directed the sale of an aggregate of 1,300 shares of their Series B Common Stock, resulting in the automatic conversion of the shares into Series A Common Stock upon execution of the sale. F2 · ownership.nature: Summit Partners, L.P. is the manager of Summit Partners GE IX, LLC, which is the general partner of Summit Partners GE IX, LP, which is the general partner of Summit Partners Growth Equity Fund IX-A, L.P. ("Fund IX-A") and Summit Partners Growth Equity Fund IX-B, L.P. ("Fund IX-B"). Summit Partners, L.P. is the managing member of Summit Partners Co-Invest Kiwi GP, LLC, which is the general partner of Summit Partners Co-Invest (Kiwi), L.P. ("Kiwi Co-Invest Fund"). Summit Master Company, LLC is the general partner of Summit Partners, L.P., which is the manager of Summit Investors Management, LLC, which is the manager of Summit Investors GE IX/VC IV, LLC ("Fund IX/VC IV") and the general partner of Summit Investors GE IX/VC IV (UK), L.P. ("Fund IX/VC IV (UK)"). F3 · ownership.nature: (continued from footnote 2) Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC, has delegated voting and investment decisions with respect to the Series B Common Stock held by Fund IX/VC IV and Fund IX/VC IV (UK) to Summit Partners, L.P. F4 · ownership.nature: The investment committee of Summit Partners, L.P., is currently composed of Peter Y. Chung, Scott C. Collins, and Peter L. Rottier, who may be deemed to have voting and dispositive authority over, and therefore beneficial ownership of, the reported securities. Each of the foregoing entities, Mr. Chung, Mr. Collins, and Mr. Rottier disclaims beneficial ownership of the shares, except to the extent of such person's or entity's pecuniary interest therein and the filing of this statement shall not be deemed an admission that any of the foregoing entities or persons are, for purposes of Section 16 of the Act or otherwise, the beneficial owner of any equity securities covered by this statement. Read SEC document
August 29, 2024 Filed Sep 3, 2024 20:20 UTC	Klaviyo, Inc. KVYO · Entity 3775	ConversionSeries B Common Stock, par value $0.001 per share · Derivative	16,931	$0.00	$0.00	Disclosure SEC source: 0001415889-24-022689 · form4-09032024_080950.xml · derivative · entry 3 SUMMIT PARTNERS L P · CIK 0000830588 · 10% owner Summit Partners Growth Equity Fund IX-A, L.P. · CIK 0001634415 · 10% owner Summit Partners Growth Equity Fund IX-B, L.P. · CIK 0001634426 · 10% owner Summit Partners Co-Invest (Kiwi), LP · CIK 0001830877 · 10% owner SUMMIT INVESTORS GE IX/VC IV, LLC · CIK 0001654074 · 10% owner SUMMIT INVESTORS GE IX/VC IV (UK), L.P. · CIK 0001846709 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See footnote Disclosed balance after: 46,658,825 Underlying: Series A Common Stock, par value $0.001 per share · 16,931 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation. On August 29, 2024, the reporting persons directed the sale of an aggregate of 16,931 shares of their Series B Common Stock, resulting in the automatic conversion of the shares into Series A Common Stock upon execution of the sale. F1 · derivative.exercise_date: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation. On August 29, 2024, the reporting persons directed the sale of an aggregate of 16,931 shares of their Series B Common Stock, resulting in the automatic conversion of the shares into Series A Common Stock upon execution of the sale. F1 · derivative.expiration_date: The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation. On August 29, 2024, the reporting persons directed the sale of an aggregate of 16,931 shares of their Series B Common Stock, resulting in the automatic conversion of the shares into Series A Common Stock upon execution of the sale. F5 · balance_after: Consists of (i) 27,576,410 shares of Series B common stock held by Fund IX-A, (ii) 17,218,323 shares of Series B Common Stock held by Fund IX-B, (iii) 1,700,345 shares of Series B Common Stock held by Kiwi Co-Invest Fund, (iv) 144,935 shares of Series B Common Stock held by Fund IX/VC IV, and (v) 18,812 shares of Series B Common Stock held by Fund IX/VC IV (UK). F2 · ownership.nature: Summit Partners, L.P. is the manager of Summit Partners GE IX, LLC, which is the general partner of Summit Partners GE IX, LP, which is the general partner of Summit Partners Growth Equity Fund IX-A, L.P. ("Fund IX-A") and Summit Partners Growth Equity Fund IX-B, L.P. ("Fund IX-B"). Summit Partners, L.P. is the managing member of Summit Partners Co-Invest Kiwi GP, LLC, which is the general partner of Summit Partners Co-Invest (Kiwi), L.P. ("Kiwi Co-Invest Fund"). Summit Master Company, LLC is the general partner of Summit Partners, L.P., which is the manager of Summit Investors Management, LLC, which is the manager of Summit Investors GE IX/VC IV, LLC ("Fund IX/VC IV") and the general partner of Summit Investors GE IX/VC IV (UK), L.P. ("Fund IX/VC IV (UK)"). F3 · ownership.nature: (continued from footnote 2) Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC, has delegated voting and investment decisions with respect to the Series B Common Stock held by Fund IX/VC IV and Fund IX/VC IV (UK) to Summit Partners, L.P. F4 · ownership.nature: The investment committee of Summit Partners, L.P., is currently composed of Peter Y. Chung, Scott C. Collins, and Peter L. Rottier, who may be deemed to have voting and dispositive authority over, and therefore beneficial ownership of, the reported securities. Each of the foregoing entities, Mr. Chung, Mr. Collins, and Mr. Rottier disclaims beneficial ownership of the shares, except to the extent of such person's or entity's pecuniary interest therein and the filing of this statement shall not be deemed an admission that any of the foregoing entities or persons are, for purposes of Section 16 of the Act or otherwise, the beneficial owner of any equity securities covered by this statement. Read SEC document
August 29, 2024 Filed Sep 3, 2024 20:20 UTC	Klaviyo, Inc. KVYO · Entity 3775	SaleSeries A Common Stock, par value $0.001 per share	16,931	$31.55	$534,173.05	Disclosure SEC source: 0001415889-24-022689 · form4-09032024_080950.xml · nonDerivative · entry 2 SUMMIT PARTNERS L P · CIK 0000830588 · 10% owner Summit Partners Growth Equity Fund IX-A, L.P. · CIK 0001634415 · 10% owner Summit Partners Growth Equity Fund IX-B, L.P. · CIK 0001634426 · 10% owner Summit Partners Co-Invest (Kiwi), LP · CIK 0001830877 · 10% owner SUMMIT INVESTORS GE IX/VC IV, LLC · CIK 0001654074 · 10% owner SUMMIT INVESTORS GE IX/VC IV (UK), L.P. · CIK 0001846709 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See footnote Disclosed balance after: 0 F2 · ownership.nature: Summit Partners, L.P. is the manager of Summit Partners GE IX, LLC, which is the general partner of Summit Partners GE IX, LP, which is the general partner of Summit Partners Growth Equity Fund IX-A, L.P. ("Fund IX-A") and Summit Partners Growth Equity Fund IX-B, L.P. ("Fund IX-B"). Summit Partners, L.P. is the managing member of Summit Partners Co-Invest Kiwi GP, LLC, which is the general partner of Summit Partners Co-Invest (Kiwi), L.P. ("Kiwi Co-Invest Fund"). Summit Master Company, LLC is the general partner of Summit Partners, L.P., which is the manager of Summit Investors Management, LLC, which is the manager of Summit Investors GE IX/VC IV, LLC ("Fund IX/VC IV") and the general partner of Summit Investors GE IX/VC IV (UK), L.P. ("Fund IX/VC IV (UK)"). F3 · ownership.nature: (continued from footnote 2) Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC, has delegated voting and investment decisions with respect to the Series B Common Stock held by Fund IX/VC IV and Fund IX/VC IV (UK) to Summit Partners, L.P. F4 · ownership.nature: The investment committee of Summit Partners, L.P., is currently composed of Peter Y. Chung, Scott C. Collins, and Peter L. Rottier, who may be deemed to have voting and dispositive authority over, and therefore beneficial ownership of, the reported securities. Each of the foregoing entities, Mr. Chung, Mr. Collins, and Mr. Rottier disclaims beneficial ownership of the shares, except to the extent of such person's or entity's pecuniary interest therein and the filing of this statement shall not be deemed an admission that any of the foregoing entities or persons are, for purposes of Section 16 of the Act or otherwise, the beneficial owner of any equity securities covered by this statement. Read SEC document

Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.