person · Reporting owner

CHUNG PETER Y

Disclosed activity across 6 companies

Tapewire entity: 46439
SEC CIK: 0001239366

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
A10 Networks, Inc.ATEN · Entity 4574	Director	April 22, 2026	April 24, 2026
Casa Systems IncCASA · Entity 95402	Director	April 30, 2018	April 30, 2018
EngageSmart, Inc.ESMT · Entity 94837	10% owner	March 07, 2023	March 07, 2023
MACOM Technology Solutions Holdings, Inc.MTSI · Entity 3267	Director	May 14, 2026	May 18, 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 L P, SUMMIT PARTNERS GROWTH EQUITY FUND IX-B AIV, L.P., SUMMIT PARTNERS GROWTH EQUITY FUND IX-A AIV, L.P., 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.

A10 Networks, Inc.

Report date April 22, 2026 · Filed April 24, 2026

Security / award	Ownership account	Disclosed shares / units	Disclosure context
Common StockSEC Table I · non-derivative	IndirectSee Remarks	207,298	Reported balance After 2026-04-22 transaction · row 1 Account identity is unresolved; indirect or unspecified ownership is not merged. 1 source row Row 1 · 2026-04-22 · Grant · Acquired 7,233 · Balance 207,298 F1: Represents restricted stock units granted to Mr. Chung as part of the director compensation program. The restricted stock units will vest on the earlier of April 22, 2027, or the date of the Issuer's next Annual Meeting, and will settle solely by delivery of an equal number of shares of Common Stock provided that Mr. Chung remains in continuous service with the Issuer through the vesting date. F2: The 207,298 shares and restricted stock units are held in the name of Mr. Chung, which are held for the benefit of Summit Partners, L.P. F3: Mr. Chung holds any Common Stock and restricted stock units for the benefit of Summit Partners, L.P. and Mr. Chung disclaims beneficial ownership of the shares of common stock and the restricted stock units, except to the extent of their pecuniary interest therein.

Filing footnotes · ownership attribution and instrument terms

F1: Represents restricted stock units granted to Mr. Chung as part of the director compensation program. The restricted stock units will vest on the earlier of April 22, 2027, or the date of the Issuer's next Annual Meeting, and will settle solely by delivery of an equal number of shares of Common Stock provided that Mr. Chung remains in continuous service with the Issuer through the vesting date.

F2: The 207,298 shares and restricted stock units are held in the name of Mr. Chung, which are held for the benefit of Summit Partners, L.P.

F3: Mr. Chung holds any Common Stock and restricted stock units for the benefit of Summit Partners, L.P. and Mr. Chung disclaims beneficial ownership of the shares of common stock and the restricted stock units, except to the extent of their pecuniary interest therein.

Casa Systems Inc

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

Jointly reported with MANNION MARTIN J

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 entities 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 $13.00 per share. The entities 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 entities 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 $13.00 per share. The entities 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 L P, 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, 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.

MACOM Technology Solutions Holdings, Inc.

Report date May 14, 2026 · Filed May 18, 2026

Security / award	Ownership account	Disclosed shares / units	Disclosure context
Common StockSEC Table I · non-derivative	IndirectSee Remarks	6,781	Reported balance After 2026-05-14 transaction · row 1 Account identity is unresolved; indirect or unspecified ownership is not merged. 1 source row Row 1 · 2026-05-14 · Sale · Disposed 43,268 · Balance 6,781 F1: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $377.80 to $379.44. The Reporting Person undertakes to provide to the Issuer, any shareholder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. F2: The 6,781 shares and restricted stock units are held in the name of Mr. Chung, which are held for the benefit of Summit Partners, L.P. F3: Mr. Chung holds any Common Stock and restricted stock units for the benefit of Summit Partners, L.P. which he has empowered to determine when the underlying shares will be sold and which is entitled to the proceeds of any such sales. Summit Partners, L.P., through a two-person Investment Committee, responsible for voting and investment decisions with respect to the Issuer, currently composed of Scott C. Collins 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. Summit Partners, L.P., Mr. Collins and Mr. Chung disclaim beneficial ownership of the shares of common stock and the restricted stock units, except to the extent of their pecuniary interest therein.

Filing footnotes · ownership attribution and instrument terms

F1: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $377.80 to $379.44. The Reporting Person undertakes to provide to the Issuer, any shareholder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F2: The 6,781 shares and restricted stock units are held in the name of Mr. Chung, which are held for the benefit of Summit Partners, L.P.

F3: Mr. Chung holds any Common Stock and restricted stock units for the benefit of Summit Partners, L.P. which he has empowered to determine when the underlying shares will be sold and which is entitled to the proceeds of any such sales. Summit Partners, L.P., through a two-person Investment Committee, responsible for voting and investment decisions with respect to the Issuer, currently composed of Scott C. Collins 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. Summit Partners, L.P., Mr. Collins and Mr. Chung disclaim beneficial ownership of the shares of common stock and the restricted stock units, except to the extent of their pecuniary interest therein.

Past disclosures · reporting ended (1)

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

Acacia Communications, Inc.

Report date March 01, 2021 · Filed March 03, 2021

Section 16 reporting ended · disclosed 2021-03-03. Current position is not established by this disclosure.

Security / award	Ownership account	Disclosed shares / units	Disclosure context
Common StockSEC Table I · non-derivative	Direct	0	Reported balance After 2021-03-01 transaction · row 1 1 source row Row 1 · 2021-03-01 · Disposition to issuer · Disposed 14,600 · Balance 0 F1: Mr. Chung held 14,600 shares of the Company's Common Stock for the benefit of Summit Partners, L.P., which is entitled to the proceeds of any such sales. Summit Partners, L.P., through a two-person investment committee responsible for voting and investment decisions with respect to the Company's securities, currently comprised of Martin J. Mannion and Peter Y. Chung, has voting and dispositive power over the Common Stock reported herein and therefore may be deemed to beneficially own such shares. Each of Summit Partners, L.P., Mannion and Mr. Chung disclaims beneficial ownership of the Common Stock, except to the extent of their pecuniary interest therein. F2: Pursuant to the terms of the Merger Agreement, at the Effective Time, each share of the Company's Common Stock automatically converted into the right to receive the Merger Consideration.

Filing footnotes · ownership attribution and instrument terms

F1: Mr. Chung held 14,600 shares of the Company's Common Stock for the benefit of Summit Partners, L.P., which is entitled to the proceeds of any such sales. Summit Partners, L.P., through a two-person investment committee responsible for voting and investment decisions with respect to the Company's securities, currently comprised of Martin J. Mannion and Peter Y. Chung, has voting and dispositive power over the Common Stock reported herein and therefore may be deemed to beneficially own such shares. Each of Summit Partners, L.P., Mannion and Mr. Chung disclaims beneficial ownership of the Common Stock, except to the extent of their pecuniary interest therein.

F2: Pursuant to the terms of the Merger Agreement, at the Effective Time, each share of the Company's Common Stock automatically converted into the right to receive the Merger Consideration.

Transaction history

JSON API

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
May 14, 2026 Filed May 18, 2026 20:02 UTC	MACOM Technology Solutions Holdings, Inc. MTSI · Entity 3267	SaleCommon Stock	43,268	$378.20	$16,363,922.99	Disclosure SEC source: 0001239366-26-000008 · form4-05182026_080507.xml · nonDerivative · entry 1 CHUNG PETER Y · CIK 0001239366 · Director 10b5-1 filing: No plan indicated Ownership: Indirect · See Remarks Disclosed balance after: 6,781 F1 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $377.80 to $379.44. The Reporting Person undertakes to provide to the Issuer, any shareholder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. F2 · balance_after: The 6,781 shares and restricted stock units are held in the name of Mr. Chung, which are held for the benefit of Summit Partners, L.P. F3 · ownership.nature: Mr. Chung holds any Common Stock and restricted stock units for the benefit of Summit Partners, L.P. which he has empowered to determine when the underlying shares will be sold and which is entitled to the proceeds of any such sales. Summit Partners, L.P., through a two-person Investment Committee, responsible for voting and investment decisions with respect to the Issuer, currently composed of Scott C. Collins 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. Summit Partners, L.P., Mr. Collins and Mr. Chung disclaim beneficial ownership of the shares of common stock and the restricted stock units, except to the extent of their pecuniary interest therein. Read SEC document
April 22, 2026 Filed Apr 24, 2026 20:03 UTC	A10 Networks, Inc. ATEN · Entity 4574	GrantCommon Stock	7,233	$0.00	$0.00	Disclosure SEC source: 0001239366-26-000006 · form4-04242026_080444.xml · nonDerivative · entry 1 CHUNG PETER Y · CIK 0001239366 · Director 10b5-1 filing: No plan indicated Ownership: Indirect · See Remarks Disclosed balance after: 207,298 F1 · shares: Represents restricted stock units granted to Mr. Chung as part of the director compensation program. The restricted stock units will vest on the earlier of April 22, 2027, or the date of the Issuer's next Annual Meeting, and will settle solely by delivery of an equal number of shares of Common Stock provided that Mr. Chung remains in continuous service with the Issuer through the vesting date. F2 · balance_after: The 207,298 shares and restricted stock units are held in the name of Mr. Chung, which are held for the benefit of Summit Partners, L.P. F3 · ownership.nature: Mr. Chung holds any Common Stock and restricted stock units for the benefit of Summit Partners, L.P. and Mr. Chung disclaims beneficial ownership of the shares of common stock and the restricted stock units, except to the extent of their pecuniary interest therein. Read SEC document
March 06, 2026 Filed Mar 9, 2026 20:04 UTC	MACOM Technology Solutions Holdings, Inc. MTSI · Entity 3267	GrantCommon Stock	776	$0.00	$0.00	Disclosure SEC source: 0001239366-26-000002 · form4-03092026_080322.xml · nonDerivative · entry 1 CHUNG PETER Y · CIK 0001239366 · Director 10b5-1 filing: No plan indicated Ownership: Indirect · See Remarks Disclosed balance after: 50,049 F1 · shares: Represents restricted stock units granted to Mr. Chung as part of the director compensation program. The restricted stock units will vest on March 6, 2027, and will settle solely by delivery of an equal number of shares of Common Stock provided that Mr. Chung remains in continuous service with the Issuer through the vesting date. F2 · balance_after: The 50,049 shares and restricted stock units are held in the name of Mr. Chung, which are held for the benefit of Summit Partners, L.P. F3 · ownership.nature: Mr. Chung holds any Common Stock and restricted stock units for the benefit of Summit Partners, L.P. which he has empowered to determine when the underlying shares will be sold and which is entitled to the proceeds of any such sales. Summit Partners, L.P., through a two-person Investment Committee, responsible for voting and investment decisions with respect to the Issuer, currently composed of Scott C. Collins 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. Summit Partners, L.P., Mr. Collins and Mr. Chung disclaims beneficial ownership of the shares of common stock and the restricted stock units, except to the extent of their pecuniary interest therein. Read SEC document
April 17, 2025 Filed Apr 18, 2025 20:01 UTC	A10 Networks, Inc. ATEN · Entity 4574	GrantCommon Stock	12,698	$0.00	$0.00	Disclosure SEC source: 0001415889-25-011005 · form4-04182025_080432.xml · nonDerivative · entry 1 CHUNG PETER Y · CIK 0001239366 · Director 10b5-1 filing: No plan indicated Ownership: Indirect · See Remarks Disclosed balance after: 200,065 F1 · shares: Represents restricted stock units granted to Mr. Chung as part of the director compensation program. The restricted stock units will vest on the earlier of April 17, 2026 or the date of the Issuer's next Annual Meeting, and will settle solely by delivery of an equal number of shares of Common Stock provided that Mr. Chung remains in continuous service with the Issuer through the vesting date. F2 · balance_after: The 200,065 shares and restricted stock units are held in the name of Mr. Chung, which are held for the benefit of Summit Partners, L.P. F3 · ownership.nature: Mr. Chung holds any Common Stock and restricted stock units for the benefit of Summit Partners, L.P. and Mr. Chung disclaims beneficial ownership of the shares of common stock and the restricted stock units, except to the extent of their pecuniary interest therein. Read SEC document
March 07, 2025 Filed Mar 7, 2025 21:01 UTC	MACOM Technology Solutions Holdings, Inc. MTSI · Entity 3267	GrantCommon Stock	1,623	$0.00	$0.00	Disclosure SEC source: 0001415889-25-007364 · form4-03072025_090310.xml · nonDerivative · entry 1 CHUNG PETER Y · CIK 0001239366 · Director 10b5-1 filing: No plan indicated Ownership: Indirect · See Remarks Disclosed balance after: 49,273 F1 · shares: Represents restricted stock units granted to Mr. Chung as part of the director compensation program. The restricted stock units will vest on March 7, 2026, and will settle solely by delivery of an equal number of shares of Common Stock provided that Mr. Chung remains in continuous service with the Issuer through the vesting date. F2 · balance_after: The 49,273 shares and restricted stock units are held in the name of Mr. Chung, which are held for the benefit of Summit Partners, L.P. F3 · ownership.nature: Mr. Chung holds any Common Stock and restricted stock units for the benefit of Summit Partners, L.P. which he has empowered to determine when the underlying shares will be sold and which is entitled to the proceeds of any such sales. Summit Partners, L.P., through a two-person Investment Committee, responsible for voting and investment decisions with respect to the Issuer, currently composed of Scott C. Collins 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. Summit Partners, L.P., Mr. Collins and Mr. Chung disclaims beneficial ownership of the shares of common stock and the restricted stock units, except to the extent of their pecuniary interest therein. Read SEC document
November 14, 2024 Filed Nov 18, 2024 21:01 UTC	A10 Networks, Inc. ATEN · Entity 4574	Disposition to issuerCommon Stock	329,566	$15.73	$5,184,073.18	Disclosure SEC source: 0001415889-24-027068 · form4-11182024_091126.xml · nonDerivative · entry 2 CHUNG PETER Y · CIK 0001239366 · Director 10b5-1 filing: No plan indicated Ownership: Indirect · See Remarks Disclosed balance after: 187,367 F5 · shares: Represents 240,261 shares sold by Summit Partners Growth Equity Fund VIII-A, L.P., 87,776 shares sold by Summit Partners Growth Equity Fund VIII-B, L.P., 1,405 shares sold by Summit Investors I, LLC, and 124 shares sold by Summit Investors I (UK), L.P F6 · acquired: On November 14, 2024, A10 Networks, Inc. entered into a Common Stock Repurchase Agreement (the "Agreement") with Summit Partners Growth Equity Fund VIII-A, L.P., Summit Partners Growth Equity Fund VIII-B L.P., Summit Investors I, LLC and Summit Investors I (UK), L.P. (collectively, "Summit"). Pursuant to the Agreement, the Company purchased an aggregate of 329,566 shares of the Company's common stock from Summit at $15.73 per share, or an aggregate purchase price of $5,184,732.31. F7 · balance_after: The reported securities are held as follows: 187,367 shares and restricted stock units in the name of Mr. Chung, which are held for the benefit of Summit Partners, L.P. Mr. Chung holds any Common Stock and restricted stock units for the benefit of Summit Partners, L.P., which he as empowered to determine when the underlying shares will be sold and which is entitled to the proceeds of any such sales. F3 · ownership.nature: 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 Issuer. F4 · ownership.nature: (Continued from footnote 2) Summit Partners, L.P., through a two-person Investment Committee, responsible for voting and investment decisions with respect to the Issuer, currently composed of Scott C. Collins 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 and restricted stock units. Summit Partners, L.P., Mr. Collins 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. Read SEC document
November 14, 2024 Filed Nov 18, 2024 21:01 UTC	A10 Networks, Inc. ATEN · Entity 4574	SaleCommon Stock	23,754	$16.36	$388,615.44	Disclosure SEC source: 0001415889-24-027068 · form4-11182024_091126.xml · nonDerivative · entry 1 CHUNG PETER Y · CIK 0001239366 · Director 10b5-1 filing: No plan indicated Ownership: Indirect · See Remarks Disclosed balance after: 516,933 F1 · shares: Represents 17,317 shares sold by Summit Partners Growth Equity Fund VIII-A, L.P., 6,327 shares sold by Summit Partners Growth Equity Fund VIII-B, L.P., 101 shares sold by Summit Investors I, LLC, and 9 shares sold by Summit Investors I (UK), L.P. F2 · balance_after: The reported securities are held as follows: 240,261 shares in the name of Summit Partners Growth Equity Fund VIII-A, L.P.; 87,776 shares in the name of Summit Partners Growth Equity Fund VIII-B, L.P.; 1,405 shares in the name of Summit Investors I, LLC; 124 shares in the name of Summit Investors I (UK), L.P.; 187,367 shares and restricted stock units in the name of Mr. Chung, which are held for the benefit of Summit Partners, L.P. Mr. Chung holds any Common Stock and restricted stock units for the benefit of Summit Partners, L.P., which he as empowered to determine when the underlying shares will be sold and which is entitled to the proceeds of any such sales. F3 · ownership.nature: 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 Issuer. F4 · ownership.nature: (Continued from footnote 2) Summit Partners, L.P., through a two-person Investment Committee, responsible for voting and investment decisions with respect to the Issuer, currently composed of Scott C. Collins 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 and restricted stock units. Summit Partners, L.P., Mr. Collins 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. Read SEC document
November 13, 2024 Filed Nov 15, 2024 21:00 UTC	A10 Networks, Inc. ATEN · Entity 4574	SaleCommon Stock	78,479	$16.59	$1,301,966.61	Disclosure SEC source: 0001415889-24-026938 · form4-11152024_091130.xml · nonDerivative · entry 1 CHUNG PETER Y · CIK 0001239366 · Director 10b5-1 filing: No plan indicated Ownership: Indirect · See Remarks Disclosed balance after: 540,687 F1 · shares: Represents 57,213 shares sold by Summit Partners Growth Equity Fund VIII-A, L.P., 20,902 shares sold by Summit Partners Growth Equity Fund VIII-B, L.P., 334 shares sold by Summit Investors I, LLC, and 30 shares sold by Summit Investors I (UK), L.P. F2 · balance_after: The reported securities are held as follows: 257,578 shares in the name of Summit Partners Growth Equity Fund VIII-A, L.P.; 94,103 shares in the name of Summit Partners Growth Equity Fund VIII-B, L.P.; 1,506 shares in the name of Summit Investors I, LLC; 133 shares in the name of Summit Investors I (UK), L.P.; 187,367 shares and restricted stock units in the name of Mr. Chung, which are held for the benefit of Summit Partners, L.P. Mr. Chung holds any Common Stock and restricted stock units for the benefit of Summit Partners, L.P., which he as empowered to determine when the underlying shares will be sold and which is entitled to the proceeds of any such sales. F3 · ownership.nature: 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 Issuer. F4 · ownership.nature: (Continued from footnote 3) Summit Partners, L.P., through a two-person Investment Committee, responsible for voting and investment decisions with respect to the Issuer, currently composed of Scott C. Collins 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 and restricted stock units. Summit Partners, L.P., Mr. Collins 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. Read SEC document
May 20, 2024 Filed May 22, 2024 20:31 UTC	A10 Networks, Inc. ATEN · Entity 4574	SaleCommon Stock	3,296,047	$15.40	$50,759,123.80	Disclosure SEC source: 0001415889-24-014101 · form4-05222024_080503.xml · nonDerivative · entry 1 CHUNG PETER Y · CIK 0001239366 · Director 10b5-1 filing: No plan indicated Ownership: Indirect · See Remarks Disclosed balance after: 619,166 F1 · shares: Represents 2,402,901 shares sold by Summit Partners Growth Equity Fund VIII-A, L.P., 877,861 shares sold by Summit Partners Growth Equity Fund VIII-B, L.P., 14,049 shares sold by Summit Investors I, LLC, and 1,236 shares sold by Summit Investors I (UK), L.P. F2 · balance_after: The reported securities are held as follows: 314,791 shares in the name of Summit Partners Growth Equity Fund VIII-A, L.P.; 115,005 shares in the name of Summit Partners Growth Equity Fund VIII-B, L.P.; 1,840 shares in the name of Summit Investors I, LLC; 163 shares in the name of Summit Investors I (UK), L.P.; 187,367 shares and restricted stock units in the name of Mr. Chung, which are held for the benefit of Summit Partners, L.P. F3 · ownership.nature: Mr. Chung holds any Common Stock and restricted stock units for the benefit of Summit Partners, L.P., which he as empowered to determine when the underlying shares will be sold and which is entitled to the proceeds of any such sales. F4 · ownership.nature: (Continued from footnote 3) 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 Issuer. F5 · ownership.nature: (Continued from footnote 4) Summit Partners, L.P., through a two-person Investment Committee, responsible for voting and investment decisions with respect to the Issuer, currently composed of Scott C. Collins 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 and restricted stock units. Summit Partners, L.P., Mr. Collins 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. Read SEC document
May 09, 2024 Filed May 10, 2024 20:24 UTC	A10 Networks, Inc. ATEN · Entity 4574	GrantCommon Stock	12,903	$0.00	$0.00	Disclosure SEC source: 0001415889-24-012865 · form4-05102024_080534.xml · nonDerivative · entry 1 CHUNG PETER Y · CIK 0001239366 · Director 10b5-1 filing: No plan indicated Ownership: Indirect · See Remarks Disclosed balance after: 3,915,213 F1 · shares: Represents restricted stock units granted to Mr. Chung as part of the director compensation program. The restricted stock units will vest on the earlier of May 9, 2025 or the date of the Issuer's next Annual Meeting, and will settle solely by delivery of an equal number of shares of Common Stock provided that Mr. Chung remains in continuous service with the Issuer through the vesting date. F2 · balance_after: 2. The reported securities are held as follows: 2,717,692 shares in the name of Summit Partners Growth Equity Fund VIII-A, L.P.; 992,866 shares in the name of Summit Partners Growth Equity Fund VIII-B, L.P.; 15,889 shares in the name of Summit Investors I, LLC; 1,399 shares in the name of Summit Investors I (UK), L.P.; and 187,367 shares and restricted stock units in the name of Mr. Chung, which are held for the benefit of Summit Partners, L.P. F3 · ownership.nature: Mr. Chung holds any Common Stock and restricted stock units for the benefit of Summit Partners, L.P., which he has empowered to determine when the underlying shares will be sold and which is entitled to the proceeds of any such sales. 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. F4 · ownership.nature: (Continued from footnote 3) 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 Issuer. F5 · ownership.nature: (Continued from footnote 4) Summit Partners, L.P., through a two-person Investment Committee, responsible for voting and investment decisions with respect to the Issuer, currently composed of Scott C. Collins 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 and restricted stock units. Summit Partners, L.P., Mr. Collins and Mr. Chung each disclaim beneficial ownership of the shares of Common Stock and the restricted stock units, except to the extent of its or his respective pecuniary interest therein. Read SEC document
March 08, 2024 Filed Mar 11, 2024 20:22 UTC	MACOM Technology Solutions Holdings, Inc. MTSI · Entity 3267	GrantCommon Stock	2,138	$0.00	$0.00	Disclosure SEC source: 0001415889-24-007508 · form4-03112024_080344.xml · nonDerivative · entry 1 CHUNG PETER Y · CIK 0001239366 · Director 10b5-1 filing: No plan indicated Ownership: Indirect · See Remarks Disclosed balance after: 47,650 F1 · shares: Represents restricted stock units granted to Mr. Chung as part of the director compensation program. The restricted stock units will vest on March 8, 2025, and will settle solely by delivery of an equal number of shares of Common Stock provided that Mr. Chung remains in continuous service with the Issuer through the vesting date. F2 · balance_after: The 47,650 shares and restricted stock units are held in the name of Mr. Chung, which are held for the benefit of Summit Partners, L.P. F3 · ownership.nature: Mr. Chung holds any Common Stock and restricted stock units for the benefit of Summit Partners, L.P. which he has empowered to determine when the underlying shares will be sold and which is entitled to the proceeds of any such sales. Summit Partners, L.P., through a two-person Investment Committee, responsible for voting and investment decisions with respect to the Issuer, currently composed of Scott C. Collins 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. Summit Partners, L.P., Mr. Collins and Mr. Chung disclaims beneficial ownership of the shares of common stock and the restricted stock units, except to the extent of their pecuniary interest therein. Read SEC document
May 17, 2023 Filed May 18, 2023 22:19 UTC	A10 Networks, Inc. ATEN · Entity 4574	GrantCommon Stock	14,104	$0.00	$0.00	Disclosure SEC source: 0001415889-23-008301 · form4-05182023_100536.xml · nonDerivative · entry 1 CHUNG PETER Y · CIK 0001239366 · Director 10b5-1 filing: No plan indicated Ownership: Indirect · See Remarks Disclosed balance after: 3,902,310 F1 · shares: Represents restricted stock units granted to Mr. Chung as part of the director compensation program. The restricted stock units will vest on the earlier of April 26, 2024 or the date of the Issuer's next Annual Meeting, and will settle solely by delivery of an equal number of shares of Common Stock provided that Mr. Chung remains in continuous service with the Issuer through the vesting date. F2 · balance_after: The reported securities are held as follows: 2,717,692 shares in the name of Summit Partners Growth Equity Fund VIII-A, L.P.; 992,866 shares in the name of Summit Partners Growth Equity Fund VIII-B, L.P.; 15,889 shares in the name of Summit Investors I, LLC; 1,399 shares in the name of Summit Investors I (UK), L.P.; 174,464 shares and restricted stock units in the name of Mr. Chung, which are held for the benefit of Summit Partners, L.P. F3 · ownership.nature: Mr. Chung holds any Common Stock and restricted stock units for the benefit of Summit Partners, L.P. which he has empowered to determine when the underlying shares will be sold and which is entitled to the proceeds of any such sales. 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. F4 · ownership.nature: (Continued from footnote 3) 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 Issuer. F5 · ownership.nature: (Continued from footnote 4) Summit Partners, L.P., through a two-person Investment Committee, responsible for voting and investment decisions with respect to the Issuer, currently composed of Scott C. Collins 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. Summit Partners, L.P., Mr. Collins 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. Read SEC document
March 07, 2023 Filed Mar 7, 2023 22:00 UTC	EngageSmart, Inc. ESMT · Entity 94837	SaleCommon Stock, par value $0.001 per share	252,727	$18.19	$4,597,735.95	Disclosure SEC source: 0000899243-23-007378 · doc4.xml · nonDerivative · entry 1 SUMMIT PARTNERS L P · CIK 0000830588 · 10% owner Summit Partners Growth Equity Fund VIII-A, L.P. · CIK 0001514386 · 10% owner Summit Partners Growth Equity Fund VIII-B, L.P. · CIK 0001514388 · 10% owner Summit Partners Entrepreneur Advisors Fund I, L.P. · CIK 0001604887 · 10% owner Summit Investors I, LLC · CIK 0001435565 · 10% owner Summit Investors I (UK), L.P. · CIK 0001494616 · 10% owner SUMMIT MASTER COMPANY, LLC · CIK 0001627278 · 10% owner CHUNG PETER Y · CIK 0001239366 · 10% owner COLLINS SCOTT C · CIK 0001255670 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Not disclosed Ownership: Indirect · See Footnote Disclosed balance after: 25,004,973 F1 · shares: 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 · price: 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 · balance_after: 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 · ownership.nature: 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 · ownership.nature: (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. Read SEC document
March 03, 2023 Filed Mar 3, 2023 22:26 UTC	EngageSmart, Inc. ESMT · Entity 94837	SaleCommon Stock, par value $0.001 per share	1,669,052	$18.19	$30,364,228.51	Disclosure SEC source: 0000899243-23-007034 · doc4.xml · nonDerivative · entry 1 SUMMIT PARTNERS L P · CIK 0000830588 · 10% owner Summit Partners Growth Equity Fund VIII-A, L.P. · CIK 0001514386 · 10% owner Summit Partners Growth Equity Fund VIII-B, L.P. · CIK 0001514388 · 10% owner Summit Partners Entrepreneur Advisors Fund I, L.P. · CIK 0001604887 · 10% owner Summit Investors I, LLC · CIK 0001435565 · 10% owner Summit Investors I (UK), L.P. · CIK 0001494616 · 10% owner SUMMIT MASTER COMPANY, LLC · CIK 0001627278 · 10% owner CHUNG PETER Y · CIK 0001239366 · 10% owner COLLINS SCOTT C · CIK 0001255670 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Not disclosed Ownership: Indirect · See Footnote Disclosed balance after: 25,257,700 F1 · shares: Represents (i) 1,198,029 shares of Common Stock sold by Summit Partners Growth Equity Fund VIII-A, L.P., (ii) 437,666 shares of Common Stock sold by Summit Partners Growth Equity Fund VIII-B, L.P., (iii) 7,948 shares of Common Stock sold by Summit Partners Entrepreneur Advisors Fund I, L.P., (iv) 22,936 shares of Common Stock sold by Summit Investors I, LLC and (v) 2,473 shares of Common Stock sold by Summit Investors I (UK), L.P. F2 · price: 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 · balance_after: Consists of (i) 18,129,739 shares of Common Stock held by Summit Partners Growth Equity Fund VIII-A, L.P., (ii) 6,623,182 shares of Common Stock held by Summit Partners Growth Equity Fund VIII-B, L.P.,(iii) 120,274 shares of Common Stock held by Summit Partners Entrepreneur Advisors Fund I, L.P., (iv) 347,088 shares of Common Stock held by Summit Investors I, LLC and (v) 37,417 shares of Common Stock held by Summit Investors I (UK), L.P. This amount includes the underwriters' option to purchase up to an additional 252,727 shares of common stock within 30 days of February 28, 2023. F4 · ownership.nature: 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 the managing member of Summit Investors Management, LLC, F5 · ownership.nature: (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. Read SEC document
March 03, 2023 Filed Mar 7, 2023 21:05 UTC	MACOM Technology Solutions Holdings, Inc. MTSI · Entity 3267	GrantCommon Stock	2,244	$0.00	$0.00	Disclosure SEC source: 0001415889-23-004398 · form4-03072023_090311.xml · nonDerivative · entry 1 CHUNG PETER Y · CIK 0001239366 · Director 10b5-1 filing: Not disclosed Ownership: Indirect · See Remarks Disclosed balance after: 45,512 F1 · shares: Represents restricted stock units granted to Mr. Chung as part of the director compensation program. The restricted stock units will vest on March 3, 2024, and will settle solely by delivery of an equal number of shares of Common Stock provided that Mr. Chung remains in continuous service with the Issuer through the vesting date. F2 · balance_after: The 45,512 shares and restricted stock units are held in the name of Mr. Chung, which are held for the benefit of Summit Partners, L.P. F3 · ownership.nature: Mr. Chung holds any Common Stock and restricted stock units for the benefit of Summit Partners, L.P. which he has empowered to determine when the underlying shares will be sold and which is entitled to the proceeds of any such sales. Summit Partners, L.P., through a two-person Investment Committee, responsible for voting and investment decisions with respect to the Issuer, currently composed of Scott C. Collins 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. Summit Partners, L.P., Mr. Collins and Mr. Chung disclaims beneficial ownership of the shares of common stock and the restricted stock units, except to the extent of their pecuniary interest therein. Read SEC document
November 15, 2022 Filed Nov 17, 2022 21:13 UTC	A10 Networks, Inc. ATEN · Entity 4574	SaleCommon Stock	1,500,000	$17.20	$25,800,000.00	Disclosure SEC source: 0001415889-22-011495 · form4-11172022_091105.xml · nonDerivative · entry 1 CHUNG PETER Y · CIK 0001239366 · Director 10b5-1 filing: Not disclosed Ownership: Indirect · See Remarks Disclosed balance after: 3,888,206 F1 · shares: Represents 1,093,538 shares sold by Summit Partners Growth Equity Fund VIII-A, L.P., 399,506 shares sold by Summit Partners Growth Equity Fund VIII-B, L.P., 6,394 shares sold by Summit Investors I, LLC, and 562 shares sold by Summit Investors I (UK), L.P. F2 · balance_after: The reported securities are held as follows: 2,717,692 shares in the name of Summit Partners Growth Equity Fund VIII-A, L.P.; 992,866 shares in the name of Summit Partners Growth Equity Fund VIII-B, L.P.; 15,889 shares in the name of Summit Investors I, LLC; 1,399 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 · ownership.nature: 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. F4 · ownership.nature: 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. Read SEC document
September 08, 2022 Filed Sep 9, 2022 20:35 UTC	A10 Networks, Inc. ATEN · Entity 4574	Disposition to issuerCommon Stock	3,500,000	$12.75	$44,625,000.00	Disclosure SEC source: 0001415889-22-009500 · form4-09092022_010941.xml · nonDerivative · entry 1 CHUNG PETER Y · CIK 0001239366 · Director · 10% owner 10b5-1 filing: Not disclosed Ownership: Indirect · See Remarks Disclosed balance after: 5,388,206 F1 · shares: 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 · balance_after: 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 · ownership.nature: 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. Read SEC document
August 08, 2022 Filed Aug 10, 2022 20:13 UTC	MACOM Technology Solutions Holdings, Inc. MTSI · Entity 3267	SaleCommon Stock	850,311	$59.00	$50,168,349.00	Disclosure SEC source: 0001415889-22-008457 · form4-08102022_010809.xml · nonDerivative · entry 1 CHUNG PETER Y · CIK 0001239366 · Director 10b5-1 filing: Not disclosed Ownership: Indirect · See Remarks Disclosed balance after: 43,268 F1 · shares: Represents 530,293 shares of Common Stock sold by Summit Partners Private Equity Fund VII-A, L.P.; 318,502 shares of Common Stock sold by Summit Partners Private Equity Fund VII-B, L.P.; 1,416 shares of Common Stock sold by Summit Investors I, LLC; and 100 shares of Common Stock sold by Summit Investors I (UK), L.P. F2 · balance_after: Reflects 43,268 shares and restricted stock units in the name of Mr. Chung, which are held for the benefit of Summit Partners, L.P. F3 · ownership.nature: Mr. Chung holds any Common Stock and restricted stock units for the benefit of Summit Partners, L.P. which he has empowered to determine when the underlying shares will be sold and which is entitled to the proceeds of any such sales. 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. Summit Partners, L.P., Mr. Mannion and Mr. Chung disclaims beneficial ownership of the shares of common stock and the restricted stock units, except to the extent of their pecuniary interest therein. Read SEC document
June 24, 2022 Filed Jun 28, 2022 12:32 UTC	A10 Networks, Inc. ATEN · Entity 4574	GrantCommon Stock	10,316	$0.00	$0.00	Disclosure SEC source: 0001415889-22-007007 · form4-06282022_050602.xml · nonDerivative · entry 1 CHUNG PETER Y · CIK 0001239366 · Director · 10% owner 10b5-1 filing: Not disclosed Ownership: Indirect · See Remarks Disclosed balance after: 8,888,206 F1 · shares: Represents restricted stock units granted to Mr. Chung as part of the director compensation program. The restricted stock units will vest on June 24, 2023, and will settle solely by delivery of an equal number of shares of Common Stock provided that Mr. Chung remains in continuous service with the Issuer through the vesting date. F2 · balance_after: The Common Stock is held as follows: 6,362,818 shares in the name of Summit Partners Growth Equity Fund VIII-A, L.P.; 2,324,553 shares in the name of Summit Partners Growth Equity Fund VIII-B, L.P.; 37,202 shares in the name of Summit Investors I, LLC; 3,273 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 · ownership.nature: Mr. Chung holds any Common Stock and restricted stock units for the benefit of Summit Partners, L.P. which he has empowered to determine when the underlying shares will be sold and which is entitled to the proceeds of any such sales. 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. Summit Partners, L.P., 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. Read SEC document
March 04, 2022 Filed Mar 7, 2022 22:28 UTC	MACOM Technology Solutions Holdings, Inc. MTSI · Entity 3267	GrantCommon Stock	2,768	$0.00	$0.00	Disclosure SEC source: 0001415889-22-002671 · form4-03072022_020317.xml · nonDerivative · entry 1 CHUNG PETER Y · CIK 0001239366 · Director 10b5-1 filing: Not disclosed Ownership: Indirect · See Remarks Disclosed balance after: 893,579 F1 · shares: Represents restricted stock units granted to Mr. Chung as part of the director compensation program. The restricted stock units will vest on March 4, 2023, and will settle solely by delivery of an equal number of shares of Common Stock provided that Mr. Chung remains in continuous service with the Issuer through the vesting date. F2 · balance_after: The Common Stock is held as follows: 530,293 shares in the name of Summit Partners Private Equity Fund VII-A, L.P.; 318,502 shares in the name of Summit Partners Private Equity Fund VII-B, L.P.; 1,416 shares in the name of Summit Investors I, LLC; 100 shares in the name of Summit Investors I (UK), L.P.; 43,268 shares and restricted stock units in the name of Mr. Chung, which are held for the benefit of Summit Partners, L.P. F3 · ownership.nature: Mr. Chung holds any Common Stock and restricted stock units for the benefit of Summit Partners, L.P. which he has empowered to determine when the underlying shares will be sold and which is entitled to the proceeds of any such sales. 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. Summit Partners, L.P., Mr. Mannion and Mr. Chung disclaims beneficial ownership of the shares of common stock and the restricted stock units, except to the extent of their pecuniary interest therein. Read SEC document
December 07, 2021 Filed Dec 10, 2021 11:04 UTC	A10 Networks, Inc. ATEN · Entity 4574	SaleCommon Stock	700,000	$15.05	$10,535,000.00	Disclosure SEC source: 0001179110-21-010803 · edgar.xml · nonDerivative · entry 1 CHUNG PETER Y · CIK 0001239366 · Director · 10% owner 10b5-1 filing: Not disclosed Ownership: Indirect · See Footnotes. Disclosed balance after: 8,877,890 F1 · shares: The Common Stock sold as follows: 510,318 shares in the name of Summit Partners Growth Equity Fund VIII-A, L.P.; 186,436 shares in the name of Summit Partners Growth Equity Fund VIII-B, L.P.; 2,984 shares in the name of Summit Investors I, LLC; 262 shares in the name of Summit Investors I (UK), L.P. F2 · balance_after: The Common Stock held as follows: 6,362,818 shares in the name of Summit Partners Growth Equity Fund VIII-A, L.P.; 2,324,553 shares in the name of Summit Partners Growth Equity Fund VIII-B, L.P.; 37,202 shares in the name of Summit Investors I, LLC; 3,273 shares in the name of Summit Investors I (UK), L.P.; 150,044 shares (including shares underlying RSUs) in the name of Mr. Chung, which are held for the benefit of Summit Partners, L.P. F3 · ownership.nature: 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. F4 · ownership.nature: Summit Partners, L.P., through a two-person Investment Committee responsible for voting and investment decisions with respect to the Company, currently composed of Martin J. Mannion and Mr. Chung, has voting and dispositive authority over the shares of Common Stock held by each of the entities described in the foregoing footnotes (2) and (3) and therefore may be deemed to beneficially own such shares. In addition, Mr. Chung is a member of Summit Master Company, LLC. Each of the Summit entities, Mr. Mannion and Mr. Chung disclaims beneficial ownership of the shares of Common Stock (including shares underlying RSUs) reported herein, except to the extent of their pecuniary interest therein. Read SEC document
April 29, 2021 Filed May 3, 2021 21:30 UTC	A10 Networks, Inc. ATEN · Entity 4574	GrantCommon Stock	16,949	$0.00	$0.00	Disclosure SEC source: 0001179110-21-004802 · edgar.xml · nonDerivative · entry 1 CHUNG PETER Y · CIK 0001239366 · Director · 10% owner 10b5-1 filing: Not disclosed Ownership: Indirect · See Footnotes. Disclosed balance after: 9,577,890 F1 · shares: Represents restricted stock units ("RSUs") of the Company granted to Mr. Chung as part of the Company's director compensation program. Each share is represented by a RSU. The RSUs will vest on the earlier of the first anniversary of the grant date or the date of the Issuer's next Annual Meeting, subject to the Reporting Person's continued service as of such date. Mr. Chung holds any RSUs for the benefit of Summit Partners, L.P., which he has empowered to determine when the underlying shares of Common Stock will be sold and which is entitled to the proceeds of any such sales. F2 · balance_after: The Common Stock is held as follows: 6,873,136 shares in the name of Summit Partners Growth Equity Fund VIII-A, L.P.; 2,510,989 shares in the name of Summit Partners Growth Equity Fund VIII-B, L.P.; 40,186 shares in the name of Summit Investors I, LLC; 3,535 shares in the name of Summit Investors I (UK), L.P.; 150,044 shares (including shares underlying RSUs) in the name of Mr. Chung, which are held for the benefit of Summit Partners, L.P. F3 · ownership.nature: 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. F4 · ownership.nature: Summit Partners, L.P., through a two-person Investment Committee responsible for voting and investment decisions with respect to the Company, currently composed of Martin J. Mannion and Mr. Chung, has voting and dispositive authority over the shares of Common Stock held by each of the entities described in the foregoing footnotes (2) and (3) and therefore may be deemed to beneficially own such shares. In addition, Mr. Chung is a member of Summit Master Company, LLC. Each of the Summit entities, Mr. Mannion and Mr. Chung disclaims beneficial ownership of the shares of Common Stock (including shares underlying RSUs) reported herein, except to the extent of their pecuniary interest therein. Read SEC document
March 05, 2021 Filed Mar 11, 2021 21:21 UTC	MACOM Technology Solutions Holdings, Inc. MTSI · Entity 3267	GrantCommon Stock	2,093	$0.00	$0.00	Disclosure SEC source: 0001179110-21-003262 · edgar.xml · nonDerivative · entry 1 CHUNG PETER Y · CIK 0001239366 · Director 10b5-1 filing: Not disclosed Ownership: Indirect · See Remarks. Disclosed balance after: 890,811 F1 · shares: Represents restricted stock units granted to Mr. Chung as part of the director compensation program. The restricted stock units will vest on February 15, 2022, and will settle solely by delivery of an equal number of shares of Common Stock provided that Mr. Chung remains in continuous service with the Issuer through the vesting date. F2 · balance_after: The Common Stock is held as follows: 530,293 shares in the name of Summit Partners Private Equity Fund VII-A, L.P.; 318,502 shares in the name of Summit Partners Private Equity Fund VII-B, L.P.; 1,416 shares in the name of Summit Investors I, LLC; 100 shares in the name of Summit Investors I (UK), L.P.; 40,500 shares and restricted stock units in the name of Mr. Chung, which are held for the benefit of Summit Partners, L.P. F3 · ownership.nature: Mr. Chung holds any Common Stock and restricted stock units for the benefit of Summit Partners, L.P. which he has empowered to determine when the underlying shares will be sold and which is entitled to the proceeds of any such sales. 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. Summit Partners, L.P., Mr. Mannion and Mr. Chung disclaims beneficial ownership of the shares of common stock and the restricted stock units, except to the extent of their pecuniary interest therein. Read SEC document
March 01, 2021 Filed Mar 3, 2021 22:03 UTC	Acacia Communications, Inc. ACIA · Entity 141855	Disposition to issuerCommon Stock	14,600	$115.00	$1,679,000.00	Disclosure SEC source: 0001179110-21-002698 · edgar.xml · nonDerivative · entry 1 CHUNG PETER Y · CIK 0001239366 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 0 F1 · shares: Mr. Chung held 14,600 shares of the Company's Common Stock for the benefit of Summit Partners, L.P., which is entitled to the proceeds of any such sales. Summit Partners, L.P., through a two-person investment committee responsible for voting and investment decisions with respect to the Company's securities, currently comprised of Martin J. Mannion and Peter Y. Chung, has voting and dispositive power over the Common Stock reported herein and therefore may be deemed to beneficially own such shares. Each of Summit Partners, L.P., Mannion and Mr. Chung disclaims beneficial ownership of the Common Stock, except to the extent of their pecuniary interest therein. F2 · price: Pursuant to the terms of the Merger Agreement, at the Effective Time, each share of the Company's Common Stock automatically converted into the right to receive the Merger Consideration. Read SEC document
November 11, 2020 Filed Nov 13, 2020 21:18 UTC	MACOM Technology Solutions Holdings, Inc. MTSI · Entity 3267	OtherWarrant (right to buy) · Derivative	1,270,679	$0.00 Strike: $14.05	$0.00	Disclosure SEC source: 0001179110-20-011106 · edgar.xml · derivative · entry 3 CHUNG PETER Y · CIK 0001239366 · Director 10b5-1 filing: Not disclosed Ownership: Indirect · See Remarks Disclosed balance after: 0 Underlying: Common Stock · 1,270,679 shares Expires 2020-12-21 F1 · ownership.nature: The Common Stock is held as follows: 530,293 shares in the name of Summit Partners Private Equity Fund VII-A, L.P.; 318,502 shares in the name of Summit Partners Private Equity Fund VII-B, L.P.; 1,416 shares in the name of Summit Investors I, LLC; 100 shares in the name of Summit Investors I (UK), L.P.; 38,407 shares in the name of Mr. Chung, which are held for the benefit of Summit Partners, L.P. F2 · ownership.nature: Mr. Chung holds any Common Stock for the benefit of Summit Partners, L.P. which he has empowered to determine when the shares will be sold and which is entitled to the proceeds of any such sales. 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 reported herein and therefore may be deemed to beneficially own such shares. Summit Partners, L.P., Mr. Mannion and Mr. Chung disclaim beneficial ownership of the shares of Common Stock, except to the extent of their pecuniary interest therein. Read SEC document
November 11, 2020 Filed Nov 13, 2020 21:18 UTC	MACOM Technology Solutions Holdings, Inc. MTSI · Entity 3267	SaleCommon Stock	420,368	$42.47	$17,853,028.96	Disclosure SEC source: 0001179110-20-011106 · edgar.xml · nonDerivative · entry 2 CHUNG PETER Y · CIK 0001239366 · Director 10b5-1 filing: Not disclosed Ownership: Indirect · See Remarks. Disclosed balance after: 888,718 F3 · kind: On November 11, 2020, Summit Partners Private Equity Fund VII-A, L.P., Summit Partners Private Equity Fund VII-B, L.P., Summit Investors I, LLC and Summit Investors I (UK), L.P. (collectively, the "Summit Funds") exercised a warrant to purchase 1,270,679 shares of the Issuer's common stock for $14.05 a share. The Summit Funds paid the exercise price on a cashless basis, resulting in the Issuer's withholding of 420,368 shares to pay the exercise price and issuing to the Summit Funds the remaining 850,311 shares. F1 · ownership.nature: The Common Stock is held as follows: 530,293 shares in the name of Summit Partners Private Equity Fund VII-A, L.P.; 318,502 shares in the name of Summit Partners Private Equity Fund VII-B, L.P.; 1,416 shares in the name of Summit Investors I, LLC; 100 shares in the name of Summit Investors I (UK), L.P.; 38,407 shares in the name of Mr. Chung, which are held for the benefit of Summit Partners, L.P. F2 · ownership.nature: Mr. Chung holds any Common Stock for the benefit of Summit Partners, L.P. which he has empowered to determine when the shares will be sold and which is entitled to the proceeds of any such sales. 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 reported herein and therefore may be deemed to beneficially own such shares. Summit Partners, L.P., Mr. Mannion and Mr. Chung disclaim beneficial ownership of the shares of Common Stock, except to the extent of their pecuniary interest therein. Read SEC document
November 11, 2020 Filed Nov 13, 2020 21:18 UTC	MACOM Technology Solutions Holdings, Inc. MTSI · Entity 3267	OtherCommon Stock	1,270,679	$14.05	$17,853,039.95	Disclosure SEC source: 0001179110-20-011106 · edgar.xml · nonDerivative · entry 1 CHUNG PETER Y · CIK 0001239366 · Director 10b5-1 filing: Not disclosed Ownership: Indirect · See Remarks. Disclosed balance after: 1,309,086 F1 · ownership.nature: The Common Stock is held as follows: 530,293 shares in the name of Summit Partners Private Equity Fund VII-A, L.P.; 318,502 shares in the name of Summit Partners Private Equity Fund VII-B, L.P.; 1,416 shares in the name of Summit Investors I, LLC; 100 shares in the name of Summit Investors I (UK), L.P.; 38,407 shares in the name of Mr. Chung, which are held for the benefit of Summit Partners, L.P. F2 · ownership.nature: Mr. Chung holds any Common Stock for the benefit of Summit Partners, L.P. which he has empowered to determine when the shares will be sold and which is entitled to the proceeds of any such sales. 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 reported herein and therefore may be deemed to beneficially own such shares. Summit Partners, L.P., Mr. Mannion and Mr. Chung disclaim beneficial ownership of the shares of Common Stock, except to the extent of their pecuniary interest therein. Read SEC document
May 27, 2020 Filed May 28, 2020 20:26 UTC	A10 Networks, Inc. ATEN · Entity 4574	GrantCommon Stock	21,865	$0.00	$0.00	Disclosure SEC source: 0001179110-20-006674 · edgar.xml · nonDerivative · entry 1 CHUNG PETER Y · CIK 0001239366 · Director · 10% owner 10b5-1 filing: Not disclosed Ownership: Indirect · See Footnotes. Disclosed balance after: 9,560,941 F1 · shares: Represents restricted stock units ("RSUs") of the Issuer granted to Mr. Chung as part of the Issuer's director compensation program. The RSUs will settle solely by delivery of an equal number of shares of the Issuer's common stock, par value $0.00001 per share ("Common Stock") on the earlier of the first anniversary of the grant date or the date of the 2021 annual meeting of stockholders of the Issuer, subject to the Reporting Person's continued service on the Issuer's board of directors as of such date. Mr. Chung holds any RSUs for the benefit of Summit Partners, L.P., which he has empowered to determine when the underlying shares of Common Stock will be sold and which is entitled to the proceeds of any such sales. F2 · balance_after: The Common Stock is held as follows: 6,873,136 shares in the name of Summit Partners Growth Equity Fund VIII-A, L.P.; 2,510,989 shares in the name of Summit Partners Growth Equity Fund VIII-B, L.P.; 40,186 shares in the name of Summit Investors I, LLC; 3,535 shares in the name of Summit Investors I (UK), L.P.; 133,095 shares (including shares underlying RSUs) in the name of Mr. Chung, which are held for the benefit of Summit Partners, L.P. F3 · ownership.nature: 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 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. F4 · ownership.nature: 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 Mr. Chung, has voting and dispositive authority over the shares of Common Stock held by each of the entities described in the foregoing footnotes (2) and (3) and therefore may be deemed to beneficially own such shares. In addition, Mr. Chung is a member of Summit Master Company, LLC. Each of the Summit entities, Mr. Mannion and Mr. Chung disclaims beneficial ownership of the shares of Common Stock (including shares underlying RSUs) reported herein, except to the extent of their pecuniary interest therein. Read SEC document
March 06, 2020 Filed Mar 10, 2020 21:18 UTC	MACOM Technology Solutions Holdings, Inc. MTSI · Entity 3267	GrantCommon Stock	5,414	$0.00	$0.00	Disclosure SEC source: 0001179110-20-003415 · edgar.xml · nonDerivative · entry 1 CHUNG PETER Y · CIK 0001239366 · Director 10b5-1 filing: Not disclosed Ownership: Indirect · See Remarks. Disclosed balance after: 38,407 F1 · shares: Represents restricted stock units granted to Mr. Chung as part of the director compensation program. The restricted stock units will vest on February 15, 2021, and will settle solely by delivery of an equal number of shares of Common Stock provided that Mr. Chung remains in continuous service with the Issuer through the vesting date. F2 · ownership.nature: Mr. Chung holds any restricted stock units for the benefit of Summit Partners, L.P. which he has empowered to determine when the underlying shares will be sold and which is entitled to the proceeds of any such sales. 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. Summit Partners, L.P., Mr. Mannion and Mr. Chung disclaims beneficial ownership of the shares of common stock and the restricted stock units, except to the extent of their pecuniary interest therein. Read SEC document
December 04, 2019 Filed Dec 6, 2019 21:05 UTC	A10 Networks, Inc. ATEN · Entity 4574	GrantCommon Stock	23,547	$0.00	$0.00	Disclosure SEC source: 0001179110-19-012509 · edgar.xml · nonDerivative · entry 1 CHUNG PETER Y · CIK 0001239366 · Director · 10% owner 10b5-1 filing: Not disclosed Ownership: Indirect · See Footnotes. Disclosed balance after: 9,539,076 F1 · shares: Represents restricted stock units granted to Mr. Chung as part of the director compensation program. The restricted stock units will settle solely by delivery of an equal number of shares of Common Stock on the earlier of the first anniversary of the grant date or the date of the Issuer's next Annual Meeting, subject to the Reporting Person's continued service on the board of directors as of such date. Mr. Chung holds any restricted stock units for the benefit of Summit Partners, L.P., which he has empowered to determine when the underlying shares will be sold and which is entitled to the proceeds of any such sales. F2 · balance_after: The Common Stock is held as follows: 6,873,136 shares in the name of Summit Partners Growth Equity Fund VIII-A, L.P.; 2,510,989 shares in the name of Summit Partners Growth Equity Fund VIII-B, L.P.; 40,186 shares in the name of Summit Investors I, LLC; 3,535 shares in the name of Summit Investors I (UK), L.P.; 111,230 shares and restricted stock units in the name of Peter Y. Chung, which are held for the benefit of Summit Partners, L.P. F3 · ownership.nature: 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 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. F4 · ownership.nature: 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 held by each of these entities and therefore may be deemed to beneficially own such shares. In addition, Mr. Chung is a member of Summit Master Company, LLC. Each of the Summit entities mentioned herein, Summit Partners, L.P., Summit Master Company, LLC, Mr. Mannion and Mr. Chung disclaims beneficial ownership of the shares of Common Stock and the restricted stock units, except to the extent of their pecuniary interest therein. Read SEC document
May 16, 2019 Filed May 17, 2019 20:08 UTC	Acacia Communications, Inc. ACIA · Entity 141855	GrantCommon Stock	4,010	$0.00	$0.00	Disclosure SEC source: 0001179110-19-006260 · edgar.xml · nonDerivative · entry 1 CHUNG PETER Y · CIK 0001239366 · Director 10b5-1 filing: Not disclosed Ownership: Indirect · See Remarks. Disclosed balance after: 14,600 F1 · shares: Represents restricted stock units awarded to Mr. Chung as compensation for services rendered as a director . Each restricted stock unit represents the right to receive one share of common stock upon vesting. The restricted stock units will vest entirely on May 16, 2020. Mr. Chung holds any restricted stock units for the benefit of Summit Partners, L.P., which he has empowered to determine when the underlying shares will be sold and which is entitled to the proceeds of any such sales. F2 · balance_after: Consists of 10,590 shares and 4,010 restricted stock units held by Peter Y. Chung for the benefit of Summit Partners, L.P. F3 · ownership.nature: Mr. Chung holds any shares and restricted stock units for the benefit of Summit Partners, L.P., which he has empowered to determine when the underlying shares will be sold and which is entitled to the proceeds of any such sales. Summit Partners, L.P., through a two-person investment committee responsible for voting and investment decisions with respect to the Issuer, currently comprised of Martin J. Mannion and Peter Y. Chung, has voting and dispositive power over the shares and restricted stock units reported herein and therefore may be deemed to beneficially own such shares. Each of Summit Partners, L.P., Mannion and Mr. Chung disclaims beneficial ownership of the shares and restricted stock units, except to the extent of their pecuniary interest therein. Read SEC document
March 01, 2019 Filed Mar 5, 2019 21:02 UTC	MACOM Technology Solutions Holdings, Inc. MTSI · Entity 3267	GrantCommon Stock	6,656	$0.00	$0.00	Disclosure SEC source: 0001179110-19-003220 · edgar.xml · nonDerivative · entry 1 CHUNG PETER Y · CIK 0001239366 · Director 10b5-1 filing: Not disclosed Ownership: Indirect · See Remarks. Disclosed balance after: 32,993 F1 · shares: Represents restricted stock units granted to Mr. Chung as part of the director compensation program. The restricted stock units will settle on February 15, 2020, solely by delivery of an equal number of shares of Common Stock provided that Mr. Chung remains in continuous service with the Issuer through the vesting date. F2 · ownership.nature: Mr. Chung holds any restricted stock units for the benefit of Summit Partners, L.P. which he has empowered to determine when the underlying shares will be sold and which is entitled to the proceeds of any such sales. 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. Summit Partners, L.P., Mr. Mannion and Mr. Chung disclaims beneficial ownership of the shares of common stock and the restricted stock units, except to the extent of their pecuniary interest therein. Read SEC document
February 26, 2019 Filed Feb 28, 2019 23:02 UTC	Acacia Communications, Inc. ACIA · Entity 141855	SaleCommon Stock	1,300,127	$52.25	$67,931,635.75	Disclosure SEC source: 0001179110-19-002822 · edgar.xml · nonDerivative · entry 1 CHUNG PETER Y · CIK 0001239366 · Director 10b5-1 filing: Not disclosed Ownership: Indirect · See Footnotes Disclosed balance after: 10,590 F1 · shares: Represents shares sold by the following entities: 987,039 shares sold by Summit Partners Venture Capital Fund III-A, L.P., 299,157 shares sold by Summit Partners Venture Capital Fund III-B, L.P., 12,860 shares sold by Summit Investors I, LLC and 1,071 shares sold by Summit Investors I (UK), L.P. F2 · balance_after: Consists of 4,446 shares and 6,144 restricted stock units held by Peter Y. Chung for the benefit of Summit Partners, L.P. F3 · ownership.nature: Summit Partners, L.P. is the managing member of Summit Partners VC III, LLC, which is the general partner of Summit Partners VC III, L.P., which is the general partner of each of Summit Partners Venture Capital Fund III-A, L.P. and Summit Partners Venture Capital Fund III-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. F4 · ownership.nature: Summit Partners, L.P., through a two-person investment committee responsible for voting and investment decisions with respect to the Issuer, currently comprised of Martin J. Mannion and Peter Y. Chung, has voting and dispositive power over the shares held by each of these entities and therefore may be deemed to beneficially own such shares. Mr. Chung is a member of Summit Master Company, LLC. Each of the entities listed in this report, Mr. Mannion and Mr. Chung expressly disclaims beneficial ownership of such shares except to the extent of their pecuniary interest therein. Read SEC document
November 07, 2018 Filed Nov 9, 2018 21:21 UTC	A10 Networks, Inc. ATEN · Entity 4574	GrantCommon Stock	23,112	$0.00	$0.00	Disclosure SEC source: 0001179110-18-012728 · edgar.xml · nonDerivative · entry 1 CHUNG PETER Y · CIK 0001239366 · Director · 10% owner 10b5-1 filing: Not disclosed Ownership: Indirect · See Footnotes. Disclosed balance after: 9,515,529 F1 · shares: Represents restricted stock units granted to Mr. Chung as part of the director compensation program. The restricted stock units will settle solely by delivery of an equal number of shares of Common Stock on the earlier of the first anniversary of the grant date or the date of the Issuer's next Annual Meeting, subject to the Reporting Person's continued service on the board of directors as of such date. Mr. Chung holds any restricted stock units for the benefit of Summit Partners, L.P., which he has empowered to determine when the underlying shares will be sold and which is entitled to the proceeds of any such sales. F2 · balance_after: The Common Stock is held as follows: 6,873,136 shares in the name of Summit Partners Growth Equity Fund VIII-A, L.P.; 2,510,989 shares in the name of Summit Partners Growth Equity Fund VIII-B, L.P.; 40,186 shares in the name of Summit Investors I, LLC; 3,535 shares in the name of Summit Investors I (UK), L.P.; 87,683 shares and restricted stock units in the name of Peter Y. Chung, which are held for the benefit of Summit Partners, L.P. F3 · ownership.nature: 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 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. F4 · ownership.nature: 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 held by each of these entities and therefore may be deemed to beneficially own such shares. In addition, Mr. Chung is a member of Summit Master Company, LLC. Each of the Summit entities mentioned herein, Summit Partners, L.P., Summit Master Company, LLC, Mr. Mannion and Mr. Chung disclaims beneficial ownership of the shares of Common Stock and the restricted stock units, except to the extent of their pecuniary interest therein. Read SEC document
May 17, 2018 Filed May 21, 2018 21:10 UTC	Acacia Communications, Inc. ACIA · Entity 141855	GrantCommon Stock	6,144	$0.00	$0.00	Disclosure SEC source: 0001179110-18-007252 · edgar.xml · nonDerivative · entry 1 CHUNG PETER Y · CIK 0001239366 · Director 10b5-1 filing: Not disclosed Ownership: Indirect · See Remarks. Disclosed balance after: 1,310,717 F1 · shares: Represents restricted stock units awarded to Mr. Chung as compensation for services rendered as a director . Each restricted stock unit represents the right to receive one share of common stock upon vesting. The restricted stock units will vest entirely on May 17, 2019. Mr. Chung holds any restricted stock units for the benefit of Summit Partners, L.P., which he has empowered to determine when the underlying shares will be sold and which is entitled to the proceeds of any such sales. F2 · balance_after: Consists of 987,039 shares held by Summit Partners Venture Capital Fund III-A, L.P., 299,157 shares held by Summit Partners Venture Capital Fund III-B, L.P., 12,860 shares held by Summit Investors I, LLC; 1,071 shares held by Summit Investors I (UK), L.P. and 4,446 shares and 6,144 restricted stock units held by Peter Y. Chung for the benefit of Summit Partners, L.P. F3 · ownership.nature: Summit Partners, L.P. is the managing member of Summit Partners VC III, LLC, which is the general partner of Summit Partners VC III, L.P., which is the general partner of each of Summit Partners Venture Capital Fund III-A, L.P. and Summit Partners Venture Capital Fund III-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 dispositive power, to Summit Partners, L.P. and its investment committee responsible for voting and investment decisions with respect to the Issuer. F4 · ownership.nature: Summit Partners, L.P., through a two-person investment committee responsible for voting and investment decisions with respect to the Issuer, currently comprised of Martin J. Mannion and Peter Y. Chung, has voting and dispositive power over the shares held by each of the entities listed above and Mr. Chung and therefore, may be deemed to beneficially own such shares. Mr. Chung is a member of Summit Master Company, LLC. Each of Summit Partners, L.P., the entities listed above, Mr. Mannion and Mr. Chung expressly disclaims beneficial ownership of such shares except to the extent of their pecuniary interest therein. Read SEC document
April 30, 2018 Filed Apr 30, 2018 16:03 UTC	Casa Systems Inc CASA · Entity 95402	SaleCommon Stock	4,717,520	$25.00	$117,938,000.00	Disclosure SEC source: 0001179110-18-005946 · edgar.xml · nonDerivative · entry 1 CHUNG PETER Y · CIK 0001239366 · Director MANNION MARTIN J · CIK 0001018067 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Not disclosed Ownership: Indirect · See Footnotes. Disclosed balance after: 34,124,480 F1 · shares: 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 · shares: Of the shares sold by the entities 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 $13.00 per share. The entities 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 · balance_after: 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 · balance_after: 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. F4 · ownership.nature: 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 · ownership.nature: 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. Read SEC document
March 02, 2018 Filed Mar 6, 2018 21:08 UTC	MACOM Technology Solutions Holdings, Inc. MTSI · Entity 3267	GrantCommon Stock	6,086	$0.00	$0.00	Disclosure SEC source: 0001179110-18-003598 · edgar.xml · nonDerivative · entry 1 CHUNG PETER Y · CIK 0001239366 · Director 10b5-1 filing: Not disclosed Ownership: Indirect · See Remarks. Disclosed balance after: 26,337 F1 · shares: Represents restricted stock units granted to Mr. Chung as part of the director compensation program. The restricted stock units will settle on February 15, 2019, solely by delivery of an equal number of shares of Common Stock provided that Mr. Chung remains in continuous service with the Issuer through the vesting date. F2 · ownership.nature: Mr. Chung holds any restricted stock units for the benefit of Summit Partners, L.P. which he has empowered to determine when the underlying shares will be sold and which is entitled to the proceeds of any such sales. 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. Summit Partners, L.P., Mr. Mannion and Mr. Chung disclaims beneficial ownership of the shares of common stock and the restricted stock units, except to the extent of their pecuniary interest therein. Read SEC document
December 19, 2017 Filed Dec 19, 2017 16:03 UTC	Casa Systems Inc CASA · Entity 95402	ConversionSeries C Convertible Preferred Stock · Derivative	3,859,200	$0.00	$0.00	Disclosure SEC source: 0001179110-17-015610 · edgar.xml · derivative · entry 3 CHUNG PETER Y · CIK 0001239366 · 10% owner MANNION MARTIN J · CIK 0001018067 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Not disclosed Ownership: Indirect · See Footnotes. Disclosed balance after: 0 Underlying: Common Stock · 38,592,000 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 C Convertible Preferred Stock automatically converted into common stock of Casa Systems, Inc. (the "Issuer") on a ten-for-one basis upon the closing of the Issuer's initial public offering. The Series C Convertible Preferred Stock had no expiration date. F1 · price: The Series C Convertible Preferred Stock automatically converted into common stock of Casa Systems, Inc. (the "Issuer") on a ten-for-one basis upon the closing of the Issuer's initial public offering. The Series C Convertible Preferred Stock had no expiration date. F1 · derivative.exercise_date: The Series C Convertible Preferred Stock automatically converted into common stock of Casa Systems, Inc. (the "Issuer") on a ten-for-one basis upon the closing of the Issuer's initial public offering. The Series C Convertible Preferred Stock had no expiration date. F1 · derivative.expiration_date: The Series C Convertible Preferred Stock automatically converted into common stock of Casa Systems, Inc. (the "Issuer") on a ten-for-one basis upon the closing of the Issuer's initial public offering. The Series C Convertible Preferred Stock had no expiration date. F2 · derivative.underlying_shares: Consists of 24,052,910 shares of common stock issued upon the conversion of Series C Convertible Preferred Stock held by Summit Partners Private Equity Fund VII-A, L.P., 14,446,570 shares of common stock issued upon the conversion of Series C Convertible Preferred Stock held by Summit Partners Private Equity Fund VII-B, L.P., 82,110 shares of common stock issued upon the conversion of Series C Convertible Preferred Stock held by Summit Investors I, LLC and 10,410 shares of common stock issued upon the conversion of Series C Convertible Preferred Stock held by Summit Investors I (UK), L.P. F3 · ownership.nature: 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. F4 · ownership.nature: 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. Read SEC document
December 19, 2017 Filed Dec 19, 2017 16:03 UTC	Casa Systems Inc CASA · Entity 95402	PurchaseCommon Stock	250,000	$13.00	$3,250,000.00	Disclosure SEC source: 0001179110-17-015610 · edgar.xml · nonDerivative · entry 2 CHUNG PETER Y · CIK 0001239366 · 10% owner MANNION MARTIN J · CIK 0001018067 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Not disclosed Ownership: Indirect · See Footnotes. Disclosed balance after: 38,842,000 F5 · shares: Consists of 155,816 shares of common stock purchased by Summit Partners Private Equity Fund VII-A, L.P., 93,585 shares of common stock purchased by Summit Partners Private Equity Fund VII-B, L.P., 532 shares of common stock issued purchased by Summit Investors I, LLC and 67 shares of common stock purchased by Summit Investors I (UK), L.P. F6 · balance_after: Consists of 24,208,726 shares of common stock held by Summit Partners Private Equity Fund VII-A, L.P., 14,540,155 shares of common stock held by Summit Partners Private Equity Fund VII-B, L.P., 82,642 shares of common stock held by Summit Investors I, LLC and 10,477 shares of common stock held by Summit Investors I (UK), L.P. F3 · ownership.nature: 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. F4 · ownership.nature: 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. Read SEC document
December 19, 2017 Filed Dec 19, 2017 16:03 UTC	Casa Systems Inc CASA · Entity 95402	ConversionCommon Stock	38,592,000	Not disclosed	Not disclosed	Disclosure SEC source: 0001179110-17-015610 · edgar.xml · nonDerivative · entry 1 CHUNG PETER Y · CIK 0001239366 · 10% owner MANNION MARTIN J · CIK 0001018067 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Not disclosed Ownership: Indirect · See Footnotes. Disclosed balance after: 38,592,000 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 C Convertible Preferred Stock automatically converted into common stock of Casa Systems, Inc. (the "Issuer") on a ten-for-one basis upon the closing of the Issuer's initial public offering. The Series C Convertible Preferred Stock had no expiration date. F2 · balance_after: Consists of 24,052,910 shares of common stock issued upon the conversion of Series C Convertible Preferred Stock held by Summit Partners Private Equity Fund VII-A, L.P., 14,446,570 shares of common stock issued upon the conversion of Series C Convertible Preferred Stock held by Summit Partners Private Equity Fund VII-B, L.P., 82,110 shares of common stock issued upon the conversion of Series C Convertible Preferred Stock held by Summit Investors I, LLC and 10,410 shares of common stock issued upon the conversion of Series C Convertible Preferred Stock held by Summit Investors I (UK), L.P. F3 · ownership.nature: 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. F4 · ownership.nature: 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. Read SEC document
May 31, 2017 Filed Jun 2, 2017 20:07 UTC	A10 Networks, Inc. ATEN · Entity 4574	GrantCommon Stock	18,359	$0.00	$0.00	Disclosure SEC source: 0001179110-17-008430 · edgar.xml · nonDerivative · entry 1 CHUNG PETER Y · CIK 0001239366 · Director · 10% owner 10b5-1 filing: Not disclosed Ownership: Indirect · See Footnotes. Disclosed balance after: 9,492,417 F1 · shares: Represents restricted stock units granted to Mr. Chung as part of the director compensation program. The restricted stock units will settle solely by delivery of an equal number of shares of Common Stock on the the first anniversary of the grant date, subject to the Reporting Person's continued service on the board of directors as of such date. Mr. Chung holds any restricted stock units for the benefit of Summit Partners, L.P., which he has empowered to determine when the underlying shares will be sold and which is entitled to the proceeds of any such sales. F2 · balance_after: The Common Stock is held as follows: 6,873,136 shares in the name of Summit Partners Growth Equity Fund VIII-A, L.P.; 2,510,989 shares in the name of Summit Partners Growth Equity Fund VIII-B, L.P.; 40,186 shares in the name of Summit Investors I, LLC; 3,535 shares in the name of Summit Investors I (UK), L.P.; 64,571 shares and restricted stock units in the name of Peter Y. Chung, which are held for the benefit of Summit Partners, L.P. F3 · ownership.nature: 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 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. F4 · ownership.nature: 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 held by each of these entities and therefore may be deemed to beneficially own such shares. In addition, Mr. Chung is a member of Summit Master Company, LLC. Each of the Summit entities mentioned herein, Summit Partners, L.P., Summit Master Company, LLC, Mr. Mannion and Mr. Chung disclaims beneficial ownership of the shares of Common Stock and the restricted stock units, except to the extent of their pecuniary interest therein. Read SEC document
May 18, 2017 Filed May 22, 2017 22:15 UTC	Acacia Communications, Inc. ACIA · Entity 141855	GrantCommon Stock	4,446	$0.00	$0.00	Disclosure SEC source: 0001179110-17-007771 · edgar.xml · nonDerivative · entry 1 CHUNG PETER Y · CIK 0001239366 · Director 10b5-1 filing: Not disclosed Ownership: Indirect · See Remarks. Disclosed balance after: 1,304,573 F1 · shares: Represents restricted stock units awarded to Mr. Chung as compensation for services rendered as a director . Each restricted stock unit represents the right to receive one share of common stock upon vesting. The restricted stock units will vest entirely on May 18, 2018. Mr. Chung holds any restricted stock units for the benefit of Summit Partners, L.P., which he has empowered to determine when the underlying shares will be sold and which is entitled to the proceeds of any such sales. F2 · balance_after: Consists of 987,039 shares held by Summit Partners Venture Capital Fund III-A, L.P., 299,157 shares held by Summit Partners Venture Capital Fund III-B, L.P., 12,860 shares held by Summit Investors I, LLC; 1,071 shares held by Summit Investors I (UK), L.P.and 4,446 restricted stock units held in the name of Peter Y. Chung, which are held for the benefit of Summit Partners, L.P. F3 · ownership.nature: Summit Partners, L.P. is the managing member of Summit Partners VC III, LLC, which is the general partner of Summit Partners VC III, L.P., which is the general partner of each of Summit Partners Venture Capital Fund III-A, L.P. and Summit Partners Venture Capital Fund III-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 dispositive power, to Summit Partners, L.P. and its investment committee responsible for voting and investment decisions with respect to the Issuer. F4 · ownership.nature: Summit Partners, L.P., through a two-person investment committee responsible for voting and investment decisions with respect to the Issuer, currently comprised of Martin J. Mannion and Peter Y. Chung, has voting and dispositive power over the shares held by each of the entities listed above and Mr. Chung and therefore, may be deemed to beneficially own such shares. Mr. Chung is a member of Summit Master Company, LLC. Each of Summit Partners, L.P., the entities listed above, Mr. Mannion and Mr. Chung expressly disclaims beneficial ownership of such shares except to the extent of their pecuniary interest therein. Read SEC document
March 09, 2017 Filed Mar 13, 2017 22:35 UTC	Acacia Communications, Inc. ACIA · Entity 141855	SaleCommon Stock	1,250,000	$50.25	$62,812,500.00	Disclosure SEC source: 0001179110-17-004516 · edgar.xml · nonDerivative · entry 1 CHUNG PETER Y · CIK 0001239366 · Director 10b5-1 filing: Not disclosed Ownership: Indirect · See Footnotes Disclosed balance after: 1,300,127 F1 · shares: Represents shares sold by the following entities: 948,982 shares sold by Summit Partners Venture Capital Fund III-A, L.P., 287,624 shares sold by Summit Partners Venture Capital Fund III-B, L.P., 12,364 shares sold by Summit Investors I, LLC and 1,030 shares sold by Summit Investors I (UK), L.P. F2 · balance_after: Consists of 987,039 shares held by Summit Partners Venture Capital Fund III-A, L.P., 299,157 shares held by Summit Partners Venture Capital Fund III-B, L.P., 12,860 shares held by Summit Investors I, LLC and 1,071 shares held by Summit Investors I (UK), L.P. F3 · ownership.nature: Summit Partners, L.P. is the managing member of Summit Partners VC III, LLC, which is the general partner of Summit Partners VC III, L.P., which is the general partner of each of Summit Partners Venture Capital Fund III-A, L.P. and Summit Partners Venture Capital Fund III-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. F4 · ownership.nature: Summit Partners, L.P., through a two-person investment committee responsible for voting and investment decisions with respect to the Issuer, currently comprised of Martin J. Mannion and Peter Y. Chung, has voting and dispositive power over the shares held by each of these entities and therefore may be deemed to beneficially own such shares. Mr. Chung is a member of Summit Master Company, LLC. Each of Summit Partners, L.P., Mr. Mannion and Mr. Chung expressly disclaims beneficial ownership of such shares except to the extent of their pecuniary interest therein. Read SEC document
March 03, 2017 Filed Mar 7, 2017 21:23 UTC	MACOM Technology Solutions Holdings, Inc. MTSI · Entity 3267	GrantCommon Stock	2,835	$0.00	$0.00	Disclosure SEC source: 0001179110-17-004091 · edgar.xml · nonDerivative · entry 1 CHUNG PETER Y · CIK 0001239366 · Director 10b5-1 filing: Not disclosed Ownership: Indirect · See Remarks. Disclosed balance after: 20,251 F1 · shares: Represents restricted stock units granted to Mr. Chung as part of the director compensation program. The restricted stock units will settle on February 15, 2018, provided that Mr. Chung remains in continuous service with the Issuer through the vesting date, solely by delivery of an equal number of shares of Common Stock. Mr. Chung holds any restricted stock units for the benefit of Summit Partners, L.P. which he has empowered to determine when the underlying shares will be sold and which is entitled to the proceeds of any such sales. F2 · ownership.nature: 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. In addition, Mr. Chung is a member of Summit Master Company, LLC. Summit Partners, L.P., Mr. Mannion and Mr. Chung disclaims beneficial ownership of the shares of common stock and the restricted stock units, except to the extent of their pecuniary interest therein. Read SEC document
February 02, 2017 Filed Feb 6, 2017 21:19 UTC	MACOM Technology Solutions Holdings, Inc. MTSI · Entity 3267	SaleCommon Stock	1,201,635	$46.55	$55,936,109.25	Disclosure SEC source: 0001179110-17-001777 · edgar.xml · nonDerivative · entry 1 CHUNG PETER Y · CIK 0001239366 · Director 10b5-1 filing: Not disclosed Ownership: Indirect · See Remarks. Disclosed balance after: 17,416 F1 · shares: Represents shares sold by the following entities: 749,394 shares of common stock sold by Summit Partners Private Equity Fund VII-A, L.P.; 450,099 shares of common stock sold by Summit Partners Private Equity Fund VII-B, L.P.; 2,001 shares of common stock sold by Summit Investors I, LLC; 141 shares of common stock sold by Summit Investors I (UK), L.P. F2 · balance_after: Represents shares and restricted stock units in the name of Peter Y. Chung, which are held for the benefit of Summit Partners, L.P. Read SEC document
October 13, 2016 Filed Oct 14, 2016 20:06 UTC	Acacia Communications, Inc. ACIA · Entity 141855	SaleCommon Stock	346,202	$96.50	$33,408,493.00	Disclosure SEC source: 0001179110-16-030721 · edgar.xml · nonDerivative · entry 1 CHUNG PETER Y · CIK 0001239366 · Director 10b5-1 filing: Not disclosed Ownership: Indirect · See Footnotes Disclosed balance after: 2,550,127 F1 · shares: Represents shares sold by the following entities: 262,832 shares sold by Summit Partners Venture Capital Fund III-A, L.P., 79,661 shares sold by Summit Partners Venture Capital Fund III-B, L.P., 3,424 shares sold by Summit Investors I, LLC and 285 shares sold by Summit Investors I (UK), L.P. F2 · price: Represents the offering price to the public of $100 per share, net of underwriters' discount of $3.50. F3 · balance_after: Consists of 1,936,021 shares held by Summit Partners Venture Capital Fund III-A, L.P., 586,781 shares held by Summit Partners Venture Capital Fund III-B, L.P., 25,224 shares held by Summit Investors I, LLC and 2,101 shares held by Summit Investors I (UK), L.P. F4 · ownership.nature: Summit Partners, L.P. is the managing member of Summit Partners VC III, LLC, which is the general partner of Summit Partners VC III, L.P., which is the general partner of each of Summit Partners Venture Capital Fund III-A, L.P. and Summit Partners Venture Capital Fund III-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 · ownership.nature: Summit Partners, L.P., through a three-person investment committee responsible for voting and investment decisions with respect to the Issuer, currently comprised of Martin J. Mannion, Bruce R. Evans and Peter Y. Chung, has voting and dispositive power over the shares held by each of these entities and therefore may be deemed to beneficially own such shares. Mr. Chung is a member of Summit Master Company, LLC. Mr. Chung may be deemed to share beneficial ownership of the shares of the Issuer held of record by the Summit entities and has an indirect pecuniary interest in such shares through his membership in Summit Master Company, LLC. Mr. Chung expressly disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein. 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.