organization · Reporting owner

Atlas Venture Fund X, L.P.

Disclosed activity across 8 companies

Tapewire entity: 67257
SEC CIK: 0001628098

Reported relationships

Latest disclosed role at each company.

Company	Last reported as	Report date	Published
ImageneBio, Inc.IKNA · Entity 7139	10% owner	March 30, 2021	April 01, 2021
Kymera Therapeutics, Inc.KYMR · Entity 3545	10% owner	March 11, 2024	March 13, 2024
Q32 Bio Inc.QTTB · Entity 5594	10% owner	March 25, 2024	March 27, 2024
Tectonic Therapeutic, Inc.AVRO · Entity 5328	10% owner	July 19, 2019	July 30, 2019

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.

ImageneBio, Inc.

Report date March 30, 2021 · Filed April 01, 2021

Jointly reported with ATLAS VENTURE ASSOCIATES X, L.P., Atlas Venture Associates X, LLC, Atlas Venture Fund XI, L.P., Atlas Venture Associates XI, L.P., Atlas Venture Associates XI, LLC, Atlas Venture Opportunity Fund I, L.P., Atlas Venture Associates Opportunity I, L.P., Atlas Venture Associates Opportunity I, LLC

Security / award	Ownership account	Disclosed shares / units	Disclosure context
Common StockSEC Table I · non-derivative	IndirectSee Footnote	2,901,609	Reported balance After 2021-03-30 transaction · row 1 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 1 · 2021-03-30 · Conversion · Acquired 2,901,609 · Balance 2,901,609 F1: Each share of Series A Preferred Stock, Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock (together, the "Preferred Stock") was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock converted into Common Stock on a one-for-7.154 basis upon the closing of the Issuer's initial public offering without payment or additional consideration. The Preferred Stock had no expiration date. F2: These shares are held directly by Atlas Venture Fund X, L.P. ("Atlas X"). Atlas Venture Associates X, L.P. ("Associates X") is the general partner of Atlas X. Atlas Venture Associates X, LLC ("Associates X LLC") is the general partner of Associates X. Each of Associates X and Associates X LLC disclaims Section 16 beneficial ownership of the securities held by Atlas X, except to the extent of its pecuniary interest therein, if any.
Common StockSEC Table I · non-derivative	IndirectSee Footnote	1,268,213	Reported balance After 2021-03-30 transaction · row 2 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 2 · 2021-03-30 · Conversion · Acquired 1,099,118 · Balance 1,268,213 F1: Each share of Series A Preferred Stock, Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock (together, the "Preferred Stock") was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock converted into Common Stock on a one-for-7.154 basis upon the closing of the Issuer's initial public offering without payment or additional consideration. The Preferred Stock had no expiration date. F3: These shares are held directly by Atlas Venture Fund XI, L.P. ("Atlas XI"). Atlas Venture Associates XI, L.P. ("Associates XI") is the general partner of Atlas XI. Atlas Venture Associates XI, LLC ("Associates XI LLC") is the general partner of Associates XI. Each of Associates XI and Associates XI LLC disclaims Section 16 beneficial ownership of the securities held by Atlas XI, except to the extent of its pecuniary interest therein, if any.
Common StockSEC Table I · non-derivative	IndirectSee Footnote	749,634	Reported balance After 2021-03-30 transaction · row 3 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 3 · 2021-03-30 · Conversion · Acquired 749,634 · Balance 749,634 F1: Each share of Series A Preferred Stock, Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock (together, the "Preferred Stock") was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock converted into Common Stock on a one-for-7.154 basis upon the closing of the Issuer's initial public offering without payment or additional consideration. The Preferred Stock had no expiration date. F4: These shares are held directly by Atlas Venture Opportunity Fund I, L.P. ("Atlas Opportunity I"). Atlas Venture Associates Opportunity I, L.P. ("Associates I") is the general partner of Atlas Opportunity I. Atlas Venture Associates Opportunity I, LLC ("Associates I LLC") is the general partner of Associates I. Each of Associates I and Associates I LLC disclaims Section 16 beneficial ownership of the securities held by Atlas Opportunity I, except to the extent of its pecuniary interest therein, if any.
Series A Preferred StockSEC Table II · derivative / convertible security	IndirectSee Footnote	0	Reported balance After 2021-03-30 transaction · row 4 Instrument identity requires review; Table II rows are not merged. 1 source row Row 4 · 2021-03-30 · Conversion · Disposed 9,499,999 · Balance 0 F1: Each share of Series A Preferred Stock, Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock (together, the "Preferred Stock") was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock converted into Common Stock on a one-for-7.154 basis upon the closing of the Issuer's initial public offering without payment or additional consideration. The Preferred Stock had no expiration date. F2: These shares are held directly by Atlas Venture Fund X, L.P. ("Atlas X"). Atlas Venture Associates X, L.P. ("Associates X") is the general partner of Atlas X. Atlas Venture Associates X, LLC ("Associates X LLC") is the general partner of Associates X. Each of Associates X and Associates X LLC disclaims Section 16 beneficial ownership of the securities held by Atlas X, except to the extent of its pecuniary interest therein, if any.
Series A-1 Preferred StockSEC Table II · derivative / convertible security	IndirectSee Footnote	0	Reported balance After 2021-03-30 transaction · row 5 Instrument identity requires review; Table II rows are not merged. 1 source row Row 5 · 2021-03-30 · Conversion · Disposed 11,258,117 · Balance 0 F1: Each share of Series A Preferred Stock, Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock (together, the "Preferred Stock") was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock converted into Common Stock on a one-for-7.154 basis upon the closing of the Issuer's initial public offering without payment or additional consideration. The Preferred Stock had no expiration date. F2: These shares are held directly by Atlas Venture Fund X, L.P. ("Atlas X"). Atlas Venture Associates X, L.P. ("Associates X") is the general partner of Atlas X. Atlas Venture Associates X, LLC ("Associates X LLC") is the general partner of Associates X. Each of Associates X and Associates X LLC disclaims Section 16 beneficial ownership of the securities held by Atlas X, except to the extent of its pecuniary interest therein, if any.
Series A-2 Preferred StockSEC Table II · derivative / convertible security	IndirectSee Footnote	0	Reported balance After 2021-03-30 transaction · row 6 Instrument identity requires review; Table II rows are not merged. 1 source row Row 6 · 2021-03-30 · Conversion · Disposed 7,863,094 · Balance 0 F1: Each share of Series A Preferred Stock, Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock (together, the "Preferred Stock") was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock converted into Common Stock on a one-for-7.154 basis upon the closing of the Issuer's initial public offering without payment or additional consideration. The Preferred Stock had no expiration date. F3: These shares are held directly by Atlas Venture Fund XI, L.P. ("Atlas XI"). Atlas Venture Associates XI, L.P. ("Associates XI") is the general partner of Atlas XI. Atlas Venture Associates XI, LLC ("Associates XI LLC") is the general partner of Associates XI. Each of Associates XI and Associates XI LLC disclaims Section 16 beneficial ownership of the securities held by Atlas XI, except to the extent of its pecuniary interest therein, if any.
Series B Preferred StockSEC Table II · derivative / convertible security	IndirectSee Footnote	0	Reported balance After 2021-03-30 transaction · row 7 Instrument identity requires review; Table II rows are not merged. 1 source row Row 7 · 2021-03-30 · Conversion · Disposed 5,362,888 · Balance 0 F1: Each share of Series A Preferred Stock, Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock (together, the "Preferred Stock") was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock converted into Common Stock on a one-for-7.154 basis upon the closing of the Issuer's initial public offering without payment or additional consideration. The Preferred Stock had no expiration date. F4: These shares are held directly by Atlas Venture Opportunity Fund I, L.P. ("Atlas Opportunity I"). Atlas Venture Associates Opportunity I, L.P. ("Associates I") is the general partner of Atlas Opportunity I. Atlas Venture Associates Opportunity I, LLC ("Associates I LLC") is the general partner of Associates I. Each of Associates I and Associates I LLC disclaims Section 16 beneficial ownership of the securities held by Atlas Opportunity I, except to the extent of its pecuniary interest therein, if any.

Filing footnotes · ownership attribution and instrument terms

F1: Each share of Series A Preferred Stock, Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock (together, the "Preferred Stock") was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock converted into Common Stock on a one-for-7.154 basis upon the closing of the Issuer's initial public offering without payment or additional consideration. The Preferred Stock had no expiration date.

F2: These shares are held directly by Atlas Venture Fund X, L.P. ("Atlas X"). Atlas Venture Associates X, L.P. ("Associates X") is the general partner of Atlas X. Atlas Venture Associates X, LLC ("Associates X LLC") is the general partner of Associates X. Each of Associates X and Associates X LLC disclaims Section 16 beneficial ownership of the securities held by Atlas X, except to the extent of its pecuniary interest therein, if any.

F3: These shares are held directly by Atlas Venture Fund XI, L.P. ("Atlas XI"). Atlas Venture Associates XI, L.P. ("Associates XI") is the general partner of Atlas XI. Atlas Venture Associates XI, LLC ("Associates XI LLC") is the general partner of Associates XI. Each of Associates XI and Associates XI LLC disclaims Section 16 beneficial ownership of the securities held by Atlas XI, except to the extent of its pecuniary interest therein, if any.

F4: These shares are held directly by Atlas Venture Opportunity Fund I, L.P. ("Atlas Opportunity I"). Atlas Venture Associates Opportunity I, L.P. ("Associates I") is the general partner of Atlas Opportunity I. Atlas Venture Associates Opportunity I, LLC ("Associates I LLC") is the general partner of Associates I. Each of Associates I and Associates I LLC disclaims Section 16 beneficial ownership of the securities held by Atlas Opportunity I, except to the extent of its pecuniary interest therein, if any.

Kymera Therapeutics, Inc.

Report date March 11, 2024 · Filed March 13, 2024

Security / award	Ownership account	Disclosed shares / units	Disclosure context
Common StockSEC Table I · non-derivative	Direct	4,676,075	Last balance in matching sequence After 2024-03-13 transaction · row 10 Source-order balances reconcile. Account continuity and personal attribution are not independently verified. 6 source rows Row 1 · 2024-03-11 · Sale · Disposed 37,180 · Balance 4,930,934 F1: This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by Atlas Venture Fund X, L.P. on January 22, 2024. F2: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $42.1826 to $43.18 inclusive. The Reporting Persons undertake to provide to the Issuer, any security holder 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 ranges set forth in footnotes (2), (4), (7), (8), (9) and (10). F3: These shares are held directly by Atlas Venture Fund X, L.P. ("Atlas Venture Fund X"). The general partner of Atlas Venture Fund X is Atlas Venture Associates X, L.P. ("AVA X LP"). Atlas Venture Associates X, LLC ("AVA X LLC") is the general partner of AVA X LP. Each of AVA X LP and AVA X LLC disclaims Section 16 beneficial ownership of the securities held by Atlas Venture Fund X, except to the extent of its pecuniary interest therein, if any. Row 2 · 2024-03-11 · Sale · Disposed 5,122 · Balance 4,925,812 F1: This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by Atlas Venture Fund X, L.P. on January 22, 2024. F4: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $43.185 to $44.03 inclusive. F3: These shares are held directly by Atlas Venture Fund X, L.P. ("Atlas Venture Fund X"). The general partner of Atlas Venture Fund X is Atlas Venture Associates X, L.P. ("AVA X LP"). Atlas Venture Associates X, LLC ("AVA X LLC") is the general partner of AVA X LP. Each of AVA X LP and AVA X LLC disclaims Section 16 beneficial ownership of the securities held by Atlas Venture Fund X, except to the extent of its pecuniary interest therein, if any. Row 5 · 2024-03-12 · Sale · Disposed 126,066 · Balance 4,799,746 F1: This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by Atlas Venture Fund X, L.P. on January 22, 2024. F7: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $41.445 to $42.43 inclusive. F3: These shares are held directly by Atlas Venture Fund X, L.P. ("Atlas Venture Fund X"). The general partner of Atlas Venture Fund X is Atlas Venture Associates X, L.P. ("AVA X LP"). Atlas Venture Associates X, LLC ("AVA X LLC") is the general partner of AVA X LP. Each of AVA X LP and AVA X LLC disclaims Section 16 beneficial ownership of the securities held by Atlas Venture Fund X, except to the extent of its pecuniary interest therein, if any. Row 6 · 2024-03-12 · Sale · Disposed 8,581 · Balance 4,791,165 F1: This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by Atlas Venture Fund X, L.P. on January 22, 2024. F8: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $42.46 to $42.90 inclusive. F3: These shares are held directly by Atlas Venture Fund X, L.P. ("Atlas Venture Fund X"). The general partner of Atlas Venture Fund X is Atlas Venture Associates X, L.P. ("AVA X LP"). Atlas Venture Associates X, LLC ("AVA X LLC") is the general partner of AVA X LP. Each of AVA X LP and AVA X LLC disclaims Section 16 beneficial ownership of the securities held by Atlas Venture Fund X, except to the extent of its pecuniary interest therein, if any. Row 9 · 2024-03-13 · Sale · Disposed 108,404 · Balance 4,682,761 F1: This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by Atlas Venture Fund X, L.P. on January 22, 2024. F9: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $41.50 to $42.475 inclusive. F3: These shares are held directly by Atlas Venture Fund X, L.P. ("Atlas Venture Fund X"). The general partner of Atlas Venture Fund X is Atlas Venture Associates X, L.P. ("AVA X LP"). Atlas Venture Associates X, LLC ("AVA X LLC") is the general partner of AVA X LP. Each of AVA X LP and AVA X LLC disclaims Section 16 beneficial ownership of the securities held by Atlas Venture Fund X, except to the extent of its pecuniary interest therein, if any. Row 10 · 2024-03-13 · Sale · Disposed 6,686 · Balance 4,676,075 F1: This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by Atlas Venture Fund X, L.P. on January 22, 2024. F10: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $42.6032 to $43.0839 inclusive. F3: These shares are held directly by Atlas Venture Fund X, L.P. ("Atlas Venture Fund X"). The general partner of Atlas Venture Fund X is Atlas Venture Associates X, L.P. ("AVA X LP"). Atlas Venture Associates X, LLC ("AVA X LLC") is the general partner of AVA X LP. Each of AVA X LP and AVA X LLC disclaims Section 16 beneficial ownership of the securities held by Atlas Venture Fund X, except to the extent of its pecuniary interest therein, if any.
Common StockSEC Table I · non-derivative	IndirectSee footnote	828,830	Last balance in matching sequence After 2024-03-13 transaction · row 12 Source-order balances reconcile. Account continuity and personal attribution are not independently verified. 6 source rows Row 3 · 2024-03-11 · Sale · Disposed 7,837 · Balance 882,311 F5: This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by Atlas Venture Opportunity Fund I, L.P. on January 22, 2024. F2: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $42.1826 to $43.18 inclusive. The Reporting Persons undertake to provide to the Issuer, any security holder 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 ranges set forth in footnotes (2), (4), (7), (8), (9) and (10). F6: The shares are owned directly by Atlas Venture Opportunity Fund I, L.P. ("AVOF I"). Atlas Venture Associates Opportunity I, L.P. ("AVAO LP") is the general partner of AVOF I. Atlas Venture Associates Opportunity I, LLC ("AVAO LLC") is the general partner of AVAO LP. Each of AVAO LP and AVAO LLC disclaims Section 16 beneficial ownership of the securities held by AVOF I, except to the extent of its pecuniary interest therein, if any. Row 4 · 2024-03-11 · Sale · Disposed 1,045 · Balance 881,266 F5: This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by Atlas Venture Opportunity Fund I, L.P. on January 22, 2024. F4: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $43.185 to $44.03 inclusive. F6: The shares are owned directly by Atlas Venture Opportunity Fund I, L.P. ("AVOF I"). Atlas Venture Associates Opportunity I, L.P. ("AVAO LP") is the general partner of AVOF I. Atlas Venture Associates Opportunity I, LLC ("AVAO LLC") is the general partner of AVAO LP. Each of AVAO LP and AVAO LLC disclaims Section 16 beneficial ownership of the securities held by AVOF I, except to the extent of its pecuniary interest therein, if any. Row 7 · 2024-03-12 · Sale · Disposed 26,452 · Balance 854,814 F5: This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by Atlas Venture Opportunity Fund I, L.P. on January 22, 2024. F7: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $41.445 to $42.43 inclusive. F6: The shares are owned directly by Atlas Venture Opportunity Fund I, L.P. ("AVOF I"). Atlas Venture Associates Opportunity I, L.P. ("AVAO LP") is the general partner of AVOF I. Atlas Venture Associates Opportunity I, LLC ("AVAO LLC") is the general partner of AVAO LP. Each of AVAO LP and AVAO LLC disclaims Section 16 beneficial ownership of the securities held by AVOF I, except to the extent of its pecuniary interest therein, if any. Row 8 · 2024-03-12 · Sale · Disposed 1,819 · Balance 852,995 F5: This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by Atlas Venture Opportunity Fund I, L.P. on January 22, 2024. F8: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $42.46 to $42.90 inclusive. F6: The shares are owned directly by Atlas Venture Opportunity Fund I, L.P. ("AVOF I"). Atlas Venture Associates Opportunity I, L.P. ("AVAO LP") is the general partner of AVOF I. Atlas Venture Associates Opportunity I, LLC ("AVAO LLC") is the general partner of AVAO LP. Each of AVAO LP and AVAO LLC disclaims Section 16 beneficial ownership of the securities held by AVOF I, except to the extent of its pecuniary interest therein, if any. Row 11 · 2024-03-13 · Sale · Disposed 22,779 · Balance 830,216 F5: This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by Atlas Venture Opportunity Fund I, L.P. on January 22, 2024. F9: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $41.50 to $42.475 inclusive. F6: The shares are owned directly by Atlas Venture Opportunity Fund I, L.P. ("AVOF I"). Atlas Venture Associates Opportunity I, L.P. ("AVAO LP") is the general partner of AVOF I. Atlas Venture Associates Opportunity I, LLC ("AVAO LLC") is the general partner of AVAO LP. Each of AVAO LP and AVAO LLC disclaims Section 16 beneficial ownership of the securities held by AVOF I, except to the extent of its pecuniary interest therein, if any. Row 12 · 2024-03-13 · Sale · Disposed 1,386 · Balance 828,830 F5: This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by Atlas Venture Opportunity Fund I, L.P. on January 22, 2024. F10: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $42.6032 to $43.0839 inclusive. F6: The shares are owned directly by Atlas Venture Opportunity Fund I, L.P. ("AVOF I"). Atlas Venture Associates Opportunity I, L.P. ("AVAO LP") is the general partner of AVOF I. Atlas Venture Associates Opportunity I, LLC ("AVAO LLC") is the general partner of AVAO LP. Each of AVAO LP and AVAO LLC disclaims Section 16 beneficial ownership of the securities held by AVOF I, except to the extent of its pecuniary interest therein, if any.

Filing footnotes · ownership attribution and instrument terms

F1: This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by Atlas Venture Fund X, L.P. on January 22, 2024.

F2: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $42.1826 to $43.18 inclusive. The Reporting Persons undertake to provide to the Issuer, any security holder 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 ranges set forth in footnotes (2), (4), (7), (8), (9) and (10).

F3: These shares are held directly by Atlas Venture Fund X, L.P. ("Atlas Venture Fund X"). The general partner of Atlas Venture Fund X is Atlas Venture Associates X, L.P. ("AVA X LP"). Atlas Venture Associates X, LLC ("AVA X LLC") is the general partner of AVA X LP. Each of AVA X LP and AVA X LLC disclaims Section 16 beneficial ownership of the securities held by Atlas Venture Fund X, except to the extent of its pecuniary interest therein, if any.

F4: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $43.185 to $44.03 inclusive.

F5: This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by Atlas Venture Opportunity Fund I, L.P. on January 22, 2024.

F6: The shares are owned directly by Atlas Venture Opportunity Fund I, L.P. ("AVOF I"). Atlas Venture Associates Opportunity I, L.P. ("AVAO LP") is the general partner of AVOF I. Atlas Venture Associates Opportunity I, LLC ("AVAO LLC") is the general partner of AVAO LP. Each of AVAO LP and AVAO LLC disclaims Section 16 beneficial ownership of the securities held by AVOF I, except to the extent of its pecuniary interest therein, if any.

F7: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $41.445 to $42.43 inclusive.

F8: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $42.46 to $42.90 inclusive.

F9: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $41.50 to $42.475 inclusive.

F10: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $42.6032 to $43.0839 inclusive.

Q32 Bio Inc.

Report date March 25, 2024 · Filed March 27, 2024

Jointly reported with ATLAS VENTURE ASSOCIATES X, L.P., Atlas Venture Associates X, LLC, Atlas Venture Opportunity Fund I, L.P., Atlas Venture Associates Opportunity I, L.P., Atlas Venture Associates Opportunity I, LLC, Atlas Venture Opportunity Fund II, L.P., Atlas Venture Associates Opportunity II, LP, Atlas Venture Associates Opportunity II, LLC

Security / award	Ownership account	Disclosed shares / units	Disclosure context
Common StockSEC Table I · non-derivative	Direct	864,261	Reported balance Holding disclosure · report date 2024-03-25 · row 1 Holding and transaction disclosures are not merged. 1 source row Row 1 · Balance 864,261 F1: Shares held by Atlas Venture Fund X, L.P. ("Atlas Venture Fund X"). The general partner of Atlas Venture Fund X is Atlas Venture Associates X, L.P. ("AVA X LP"). Atlas Venture Associates X, LLC ("AVA X LLC") is the general partner of AVA X LP. Each of AVA X LP and AVA X LLC disclaims beneficial ownership of these shares except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that it is the beneficial owner of such shares for purposes of Section 16 of the Exchange Act or for any other purpose.
Common StockSEC Table I · non-derivative	IndirectBy Atlas Venture Opportunity Fund I, L.P.	503,296	Reported balance Holding disclosure · report date 2024-03-25 · row 2 Holding and transaction disclosures are not merged. 1 source row Row 2 · Balance 503,296 F2: Shares held by Atlas Venture Opportunity Fund I, L.P. ("AVOF I"). Atlas Venture Associates Opportunity I, L.P. ("AVAO LP") is the general partner of AVOF I. Atlas Venture Associates Opportunity I, LLC ("AVAO LLC") is the general partner of AVAO LP. Each of AVAO LP and AVAO LLC disclaims beneficial ownership of these shares except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that it is the beneficial owner of such shares for purposes of Section 16 of the Exchange Act or for any other purpose.
Common StockSEC Table I · non-derivative	IndirectBy Atlas Venture Opportunity Fund II, L.P.	724,549	Reported balance Holding disclosure · report date 2024-03-25 · row 3 Holding and transaction disclosures are not merged. 1 source row Row 3 · Balance 724,549 F3: The shares are owned directly by Atlas Venture Opportunity Fund II, L.P. ("AVOF II"). Atlas Venture Associates Opportunity II, L.P. ("AVAO II LP") is the general partner of AVOF II. Atlas Venture Associates Opportunity II, LLC ("AVAO II LLC") is the general partner of AVAO II LP. Each of AVAO II LP and AVAO II LLC disclaims beneficial ownership of these shares except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that it is the beneficial owner of such shares for purposes of Section 16 of the Exchange Act or for any other purpose.

Filing footnotes · ownership attribution and instrument terms

F1: Shares held by Atlas Venture Fund X, L.P. ("Atlas Venture Fund X"). The general partner of Atlas Venture Fund X is Atlas Venture Associates X, L.P. ("AVA X LP"). Atlas Venture Associates X, LLC ("AVA X LLC") is the general partner of AVA X LP. Each of AVA X LP and AVA X LLC disclaims beneficial ownership of these shares except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that it is the beneficial owner of such shares for purposes of Section 16 of the Exchange Act or for any other purpose.

F2: Shares held by Atlas Venture Opportunity Fund I, L.P. ("AVOF I"). Atlas Venture Associates Opportunity I, L.P. ("AVAO LP") is the general partner of AVOF I. Atlas Venture Associates Opportunity I, LLC ("AVAO LLC") is the general partner of AVAO LP. Each of AVAO LP and AVAO LLC disclaims beneficial ownership of these shares except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that it is the beneficial owner of such shares for purposes of Section 16 of the Exchange Act or for any other purpose.

F3: The shares are owned directly by Atlas Venture Opportunity Fund II, L.P. ("AVOF II"). Atlas Venture Associates Opportunity II, L.P. ("AVAO II LP") is the general partner of AVOF II. Atlas Venture Associates Opportunity II, LLC ("AVAO II LLC") is the general partner of AVAO II LP. Each of AVAO II LP and AVAO II LLC disclaims beneficial ownership of these shares except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that it is the beneficial owner of such shares for purposes of Section 16 of the Exchange Act or for any other purpose.

Tectonic Therapeutic, Inc.

Report date July 19, 2019 · Filed July 30, 2019 · Amendment

Jointly reported with ATLAS VENTURE ASSOCIATES X, L.P., Atlas Venture Associates X, LLC

Amendment: balances below belong to this corrected disclosure, not necessarily a complete replacement of earlier positions.

Security / award	Ownership account	Disclosed shares / units	Disclosure context
Common StockSEC Table I · non-derivative	IndirectSee Footnote	4,756,478	Reported balance Holding disclosure · report date 2019-07-19 · row 1 Amendment: may correct only part of an earlier disclosure. 1 source row Row 1 · Balance 4,756,478 F1: The shares are held directly by Atlas Venture Fund X, L.P. ("Atlas Venture Fund X"). The general partner of Atlas Venture Fund X is Atlas Venture Associates X, L.P. ("AVA X LP"). Atlas Venture Associates X, LLC ("AVA X LLC") is the general partner of AVA X LP. Each of AVA X LP and AVA X LLC disclaims Section 16 beneficial ownership of the securities held by Atlas Venture Fund X, except to the extent of its pecuniary interest therein, if any.

Filing footnotes · ownership attribution and instrument terms

F1: The shares are held directly by Atlas Venture Fund X, L.P. ("Atlas Venture Fund X"). The general partner of Atlas Venture Fund X is Atlas Venture Associates X, L.P. ("AVA X LP"). Atlas Venture Associates X, LLC ("AVA X LLC") is the general partner of AVA X LP. Each of AVA X LP and AVA X LLC disclaims Section 16 beneficial ownership of the securities held by Atlas Venture Fund X, except to the extent of its pecuniary interest therein, if any.

Past disclosures · reporting ended (4)

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

Dianthus Therapeutics, Inc. /DE/

Report date February 11, 2021 · Filed February 16, 2021

Section 16 reporting ended · disclosed 2021-02-16. Current position is not established by this disclosure.

Security / award	Ownership account	Disclosed shares / units	Disclosure context
Common StockSEC Table I · non-derivative	Direct	3,148,399	Reported balance After 2021-02-11 transaction · row 1 Account or security details depend on footnotes; rows are not merged. 1 source row Row 1 · 2021-02-11 · Other · Disposed 968,726 · Balance 3,148,399 F1: Represent a pro rata distribution, and not a purchase or sale of securities, by Atlas Venture Fund X, L.P. ("AVF X") to its general partner and limited partners without additional consideration. This distribution was effected pursuant to a plan adopted in accordance with Rule 10b5-1 on September 25, 2020. F2: The shares are held directly by AVF X. The general partner of AVF X is Atlas Venture Associates X, L.P. ("AVA X LP"). Atlas Venture Associates X, LLC ("AVA X LLC") is the general partner of AVA X LP. Each of AVA X LP and AVA X LLC disclaims Section 16 beneficial ownership of the securities held by AVF X, except to the extent of its pecuniary interest therein, if any.

Filing footnotes · ownership attribution and instrument terms

F1: Represent a pro rata distribution, and not a purchase or sale of securities, by Atlas Venture Fund X, L.P. ("AVF X") to its general partner and limited partners without additional consideration. This distribution was effected pursuant to a plan adopted in accordance with Rule 10b5-1 on September 25, 2020.

F2: The shares are held directly by AVF X. The general partner of AVF X is Atlas Venture Associates X, L.P. ("AVA X LP"). Atlas Venture Associates X, LLC ("AVA X LLC") is the general partner of AVA X LP. Each of AVA X LP and AVA X LLC disclaims Section 16 beneficial ownership of the securities held by AVF X, except to the extent of its pecuniary interest therein, if any.

Disc Medicine, Inc.

Report date January 23, 2024 · Filed January 25, 2024

Section 16 reporting ended · disclosed 2024-01-25. Current position is not established by this disclosure.

Security / award	Ownership account	Disclosed shares / units	Disclosure context
Common StockSEC Table I · non-derivative	Direct	1,402,186	Reported balance After 2024-01-23 transaction · row 1 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 1 · 2024-01-23 · Sale · Disposed 47,500 · Balance 1,402,186 F1: These shares are held directly by Atlas Venture Fund X, L.P. ("Atlas X"). Atlas Venture Associates X, L.P. ("Associates X") is the general partner of Atlas X. Atlas Venture Associates X, LLC ("Associates X LLC") is the general partner of Associates X. Each of Associates X and Associates X LLC disclaims Section 16 beneficial ownership of the securities held by Atlas X, except to the extent of its pecuniary interest therein, if any.
Common StockSEC Table I · non-derivative	IndirectSee footnote	703,660	Reported balance After 2024-01-23 transaction · row 2 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 2 · 2024-01-23 · Sale · Disposed 82,500 · Balance 703,660 F2: These shares are held directly by Atlas Venture Opportunity Fund I, L.P. ("Atlas Opportunity I"). Atlas Venture Associates Opportunity I, L.P. ("Associates I") is the general partner of Atlas Opportunity I. Atlas Venture Associates Opportunity I, LLC ("Associates I LLC") is the general partner of Associates I. Each of Associates I and Associates I LLC disclaims Section 16 beneficial ownership of the securities held by Atlas Opportunity I, except to the extent of its pecuniary interest therein, if any.
Common StockSEC Table I · non-derivative	IndirectSee footnote	198,326	Reported balance After 2024-01-23 transaction · row 3 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 3 · 2024-01-23 · Sale · Disposed 20,000 · Balance 198,326 F3: These shares are held directly by Atlas Venture Opportunity Fund II, L.P. ("Atlas Opportunity II"). Atlas Venture Associates Opportunity II, L.P. ("Associates II") is the general partner of Atlas Opportunity II. Atlas Venture Associates Opportunity II, LLC ("Associates II LLC") is the general partner of Associates II. Each of Associates II and Associates II LLC disclaims Section 16 beneficial ownership of the securities held by Atlas Opportunity II, except to the extent of its pecuniary interest therein, if any.

Filing footnotes · ownership attribution and instrument terms

F1: These shares are held directly by Atlas Venture Fund X, L.P. ("Atlas X"). Atlas Venture Associates X, L.P. ("Associates X") is the general partner of Atlas X. Atlas Venture Associates X, LLC ("Associates X LLC") is the general partner of Associates X. Each of Associates X and Associates X LLC disclaims Section 16 beneficial ownership of the securities held by Atlas X, except to the extent of its pecuniary interest therein, if any.

F2: These shares are held directly by Atlas Venture Opportunity Fund I, L.P. ("Atlas Opportunity I"). Atlas Venture Associates Opportunity I, L.P. ("Associates I") is the general partner of Atlas Opportunity I. Atlas Venture Associates Opportunity I, LLC ("Associates I LLC") is the general partner of Associates I. Each of Associates I and Associates I LLC disclaims Section 16 beneficial ownership of the securities held by Atlas Opportunity I, except to the extent of its pecuniary interest therein, if any.

F3: These shares are held directly by Atlas Venture Opportunity Fund II, L.P. ("Atlas Opportunity II"). Atlas Venture Associates Opportunity II, L.P. ("Associates II") is the general partner of Atlas Opportunity II. Atlas Venture Associates Opportunity II, LLC ("Associates II LLC") is the general partner of Associates II. Each of Associates II and Associates II LLC disclaims Section 16 beneficial ownership of the securities held by Atlas Opportunity II, except to the extent of its pecuniary interest therein, if any.

Generation Bio Co.

Report date February 09, 2026 · Filed February 09, 2026

Section 16 reporting ended · disclosed 2026-02-09. Current position is not established by this disclosure.

Security / award	Ownership account	Disclosure context
Common StockSEC Table I · non-derivative	Direct	Reported balance After 2026-02-09 transaction · row 1 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 1 · 2026-02-09 · Other · Disposed 711,193 · Balance 0 F1: Pursuant to the terms of that certain Agreement and Plan of Merger (the "Merger Agreement"), by and among Generation Bio. Co. (the "Issuer"), XOMA Royalty Corporation ("Parent") and Parent's wholly-owned subsidiary, XRA 7 Corp. ("Merger Sub"), dated as of December 15, 2025, the shares (the "Shares") of common stock, par value $0.0001 per share, of the Issuer (the "Common Stock") that were tendered to Merger Sub prior to the expiration time of the offer were exchanged for (i) a purchase price of $4.2913 per Share to the stockholders in cash, without interest and less any applicable tax withholding (the "Cash Amount"), plus (ii) one non-tradeable contingent value right per Share (the "CVR"), F2: (continued from footnote 1) which represents the right to receive certain contingent payments in cash in accordance with the terms and subject to the conditions of a contingent value rights agreement entered into by Parent and the rights agent, with an estimated maximum contingent consideration amount of $25.01 per CVR (the Cash Amount plus one CVR, collectively, the "Offer Price"). After completion of the tender offer, pursuant to the terms of the Merger Agreement, Merger Sub merged with and into the Issuer, effective as of February 9, 2026 (the "Effective Time"), with the Issuer continuing as the surviving corporation and a wholly owned subsidiary of Parent. F3: The shares are held directly by Atlas Venture Fund X, L.P. ("Atlas Venture Fund X"). The general partner of Atlas Venture Fund X is Atlas Venture Associates X, L.P. ("AVA X LP"). Atlas Venture Associates X, LLC ("AVA X LLC") is the general partner of AVA X LP. Each of AVA X LP and AVA X LLC disclaims Section 16 beneficial ownership of the securities held by Atlas Venture Fund X, except to the extent of its pecuniary interest therein, if any.
Common StockSEC Table I · non-derivative	IndirectSee footnote	Reported balance After 2026-02-09 transaction · row 2 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 2 · 2026-02-09 · Other · Disposed 116,693 · Balance 0 F1: Pursuant to the terms of that certain Agreement and Plan of Merger (the "Merger Agreement"), by and among Generation Bio. Co. (the "Issuer"), XOMA Royalty Corporation ("Parent") and Parent's wholly-owned subsidiary, XRA 7 Corp. ("Merger Sub"), dated as of December 15, 2025, the shares (the "Shares") of common stock, par value $0.0001 per share, of the Issuer (the "Common Stock") that were tendered to Merger Sub prior to the expiration time of the offer were exchanged for (i) a purchase price of $4.2913 per Share to the stockholders in cash, without interest and less any applicable tax withholding (the "Cash Amount"), plus (ii) one non-tradeable contingent value right per Share (the "CVR"), F2: (continued from footnote 1) which represents the right to receive certain contingent payments in cash in accordance with the terms and subject to the conditions of a contingent value rights agreement entered into by Parent and the rights agent, with an estimated maximum contingent consideration amount of $25.01 per CVR (the Cash Amount plus one CVR, collectively, the "Offer Price"). After completion of the tender offer, pursuant to the terms of the Merger Agreement, Merger Sub merged with and into the Issuer, effective as of February 9, 2026 (the "Effective Time"), with the Issuer continuing as the surviving corporation and a wholly owned subsidiary of Parent. F4: The shares are held directly by Atlas Venture Opportunity Fund I, L.P. ("Atlas Venture Opportunity Fund I"). The general partner of Atlas Venture Opportunity Fund I is Atlas Venture Associates Opportunity I, LP ("AVAO I LP"). Atlas Venture Associates Opportunity I, LLC ("AVAO I LLC") is the general partner of AVAO I LP. Each of AVAO I LP and AVAO I LLC disclaims Section 16 beneficial ownership of the securities held by Atlas Venture Opportunity Fund I, except to the extent of its pecuniary interest therein, if any.
Common StockSEC Table I · non-derivative	IndirectSee footnote	Reported balance After 2026-02-09 transaction · row 3 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 3 · 2026-02-09 · Other · Disposed 60 · Balance 0 F1: Pursuant to the terms of that certain Agreement and Plan of Merger (the "Merger Agreement"), by and among Generation Bio. Co. (the "Issuer"), XOMA Royalty Corporation ("Parent") and Parent's wholly-owned subsidiary, XRA 7 Corp. ("Merger Sub"), dated as of December 15, 2025, the shares (the "Shares") of common stock, par value $0.0001 per share, of the Issuer (the "Common Stock") that were tendered to Merger Sub prior to the expiration time of the offer were exchanged for (i) a purchase price of $4.2913 per Share to the stockholders in cash, without interest and less any applicable tax withholding (the "Cash Amount"), plus (ii) one non-tradeable contingent value right per Share (the "CVR"), F2: (continued from footnote 1) which represents the right to receive certain contingent payments in cash in accordance with the terms and subject to the conditions of a contingent value rights agreement entered into by Parent and the rights agent, with an estimated maximum contingent consideration amount of $25.01 per CVR (the Cash Amount plus one CVR, collectively, the "Offer Price"). After completion of the tender offer, pursuant to the terms of the Merger Agreement, Merger Sub merged with and into the Issuer, effective as of February 9, 2026 (the "Effective Time"), with the Issuer continuing as the surviving corporation and a wholly owned subsidiary of Parent. F5: The shares are held directly by AVAO I LP. AVAO I LLC is the general partner of AVAO I LP. AVAO I LLC disclaims Section 16 beneficial ownership of the securities held by AVAO I LP except to the extent of its pecuniary interest therein, if any.

Filing footnotes · ownership attribution and instrument terms

F1: Pursuant to the terms of that certain Agreement and Plan of Merger (the "Merger Agreement"), by and among Generation Bio. Co. (the "Issuer"), XOMA Royalty Corporation ("Parent") and Parent's wholly-owned subsidiary, XRA 7 Corp. ("Merger Sub"), dated as of December 15, 2025, the shares (the "Shares") of common stock, par value $0.0001 per share, of the Issuer (the "Common Stock") that were tendered to Merger Sub prior to the expiration time of the offer were exchanged for (i) a purchase price of $4.2913 per Share to the stockholders in cash, without interest and less any applicable tax withholding (the "Cash Amount"), plus (ii) one non-tradeable contingent value right per Share (the "CVR"),

F2: (continued from footnote 1) which represents the right to receive certain contingent payments in cash in accordance with the terms and subject to the conditions of a contingent value rights agreement entered into by Parent and the rights agent, with an estimated maximum contingent consideration amount of $25.01 per CVR (the Cash Amount plus one CVR, collectively, the "Offer Price"). After completion of the tender offer, pursuant to the terms of the Merger Agreement, Merger Sub merged with and into the Issuer, effective as of February 9, 2026 (the "Effective Time"), with the Issuer continuing as the surviving corporation and a wholly owned subsidiary of Parent.

F3: The shares are held directly by Atlas Venture Fund X, L.P. ("Atlas Venture Fund X"). The general partner of Atlas Venture Fund X is Atlas Venture Associates X, L.P. ("AVA X LP"). Atlas Venture Associates X, LLC ("AVA X LLC") is the general partner of AVA X LP. Each of AVA X LP and AVA X LLC disclaims Section 16 beneficial ownership of the securities held by Atlas Venture Fund X, except to the extent of its pecuniary interest therein, if any.

F4: The shares are held directly by Atlas Venture Opportunity Fund I, L.P. ("Atlas Venture Opportunity Fund I"). The general partner of Atlas Venture Opportunity Fund I is Atlas Venture Associates Opportunity I, LP ("AVAO I LP"). Atlas Venture Associates Opportunity I, LLC ("AVAO I LLC") is the general partner of AVAO I LP. Each of AVAO I LP and AVAO I LLC disclaims Section 16 beneficial ownership of the securities held by Atlas Venture Opportunity Fund I, except to the extent of its pecuniary interest therein, if any.

F5: The shares are held directly by AVAO I LP. AVAO I LLC is the general partner of AVAO I LP. AVAO I LLC disclaims Section 16 beneficial ownership of the securities held by AVAO I LP except to the extent of its pecuniary interest therein, if any.

Replimune Group, Inc.

Report date September 15, 2020 · Filed September 17, 2020

Section 16 reporting ended · disclosed 2020-09-17. Current position is not established by this disclosure.

Security / award	Ownership account	Disclosed shares / units	Disclosure context
Common StockSEC Table I · non-derivative	Direct	2,486,296	Reported balance After 2020-09-15 transaction · row 1 1 source row Row 1 · 2020-09-15 · Other · Disposed 445,339 · Balance 2,486,296 F1: Represent a pro rata distribution, and not a purchase or sale of securities, by Atlas Venture Fund X, L.P. to its general partner and limited partners without additional consideration. This distribution was effected pursuant to a plan adopted in accordance with Rule 10b5-1 on February 28, 2020.

Filing footnotes · ownership attribution and instrument terms

F1: Represent a pro rata distribution, and not a purchase or sale of securities, by Atlas Venture Fund X, L.P. to its general partner and limited partners without additional consideration. This distribution was effected pursuant to a plan adopted in accordance with Rule 10b5-1 on February 28, 2020.

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
January 12, 2023 Filed Jan 13, 2023 21:50 UTC	Kymera Therapeutics, Inc. KYMR · Entity 3545	SaleCommon Stock	21,592	$30.29	$654,021.68	Disclosure SEC source: 0001209191-23-003293 · doc4.xml · nonDerivative · entry 4 Atlas Venture Fund X, L.P. · CIK 0001628098 · 10% owner ATLAS VENTURE ASSOCIATES X, L.P. · CIK 0001742766 · 10% owner Atlas Venture Associates X, LLC · CIK 0001742765 · 10% owner Atlas Venture Opportunity Fund I, L.P. · CIK 0001759241 · 10% owner Atlas Venture Associates Opportunity I, L.P. · CIK 0001780065 · 10% owner Atlas Venture Associates Opportunity I, LLC · CIK 0001780066 · 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: 890,148 F1 · kind: Shares were sold pursuant to a Rule 10b5-1 trading plan. F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $29.95 to $30.65 inclusive. F4 · ownership.nature: The shares are owned directly by Atlas Venture Opportunity Fund I, L.P. ("AVOF I"). Atlas Venture Associates Opportunity I, L.P. ("AVAO LP") is the general partner of AVOF I. Atlas Venture Associates Opportunity I, LLC ("AVAO LLC") is the general partner of AVAO LP. Each of AVAO LP and AVAO LLC disclaims Section 16 beneficial ownership of the securities held by AVOF I, except to the extent of its pecuniary interest therein, if any. Read SEC document
January 12, 2023 Filed Jan 13, 2023 21:50 UTC	Kymera Therapeutics, Inc. KYMR · Entity 3545	SaleCommon Stock	77,128	$30.29	$2,336,207.12	Disclosure SEC source: 0001209191-23-003293 · doc4.xml · nonDerivative · entry 3 Atlas Venture Fund X, L.P. · CIK 0001628098 · 10% owner ATLAS VENTURE ASSOCIATES X, L.P. · CIK 0001742766 · 10% owner Atlas Venture Associates X, LLC · CIK 0001742765 · 10% owner Atlas Venture Opportunity Fund I, L.P. · CIK 0001759241 · 10% owner Atlas Venture Associates Opportunity I, L.P. · CIK 0001780065 · 10% owner Atlas Venture Associates Opportunity I, LLC · CIK 0001780066 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 4,968,114 F1 · kind: Shares were sold pursuant to a Rule 10b5-1 trading plan. F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $29.95 to $30.65 inclusive. F3 · ownership.direct: These shares are held directly by Atlas Venture Fund X, L.P. ("Atlas Venture Fund X"). The general partner of Atlas Venture Fund X is Atlas Venture Associates X, L.P. ("AVA X LP"). Atlas Venture Associates X, LLC ("AVA X LLC") is the general partner of AVA X LP. Each of AVA X LP and AVA X LLC disclaims Section 16 beneficial ownership of the securities held by Atlas Venture Fund X, except to the extent of its pecuniary interest therein, if any. Read SEC document
January 11, 2023 Filed Jan 13, 2023 21:50 UTC	Kymera Therapeutics, Inc. KYMR · Entity 3545	SaleCommon Stock	6,071	$29.96	$181,887.16	Disclosure SEC source: 0001209191-23-003293 · doc4.xml · nonDerivative · entry 2 Atlas Venture Fund X, L.P. · CIK 0001628098 · 10% owner ATLAS VENTURE ASSOCIATES X, L.P. · CIK 0001742766 · 10% owner Atlas Venture Associates X, LLC · CIK 0001742765 · 10% owner Atlas Venture Opportunity Fund I, L.P. · CIK 0001759241 · 10% owner Atlas Venture Associates Opportunity I, L.P. · CIK 0001780065 · 10% owner Atlas Venture Associates Opportunity I, LLC · CIK 0001780066 · 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: 911,740 F1 · kind: Shares were sold pursuant to a Rule 10b5-1 trading plan. F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $29.95 to $29.99 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder 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 ranges set forth in footnotes (2) and (5). F4 · ownership.nature: The shares are owned directly by Atlas Venture Opportunity Fund I, L.P. ("AVOF I"). Atlas Venture Associates Opportunity I, L.P. ("AVAO LP") is the general partner of AVOF I. Atlas Venture Associates Opportunity I, LLC ("AVAO LLC") is the general partner of AVAO LP. Each of AVAO LP and AVAO LLC disclaims Section 16 beneficial ownership of the securities held by AVOF I, except to the extent of its pecuniary interest therein, if any. Read SEC document
January 11, 2023 Filed Jan 13, 2023 21:50 UTC	Kymera Therapeutics, Inc. KYMR · Entity 3545	SaleCommon Stock	21,683	$29.96	$649,622.68	Disclosure SEC source: 0001209191-23-003293 · doc4.xml · nonDerivative · entry 1 Atlas Venture Fund X, L.P. · CIK 0001628098 · 10% owner ATLAS VENTURE ASSOCIATES X, L.P. · CIK 0001742766 · 10% owner Atlas Venture Associates X, LLC · CIK 0001742765 · 10% owner Atlas Venture Opportunity Fund I, L.P. · CIK 0001759241 · 10% owner Atlas Venture Associates Opportunity I, L.P. · CIK 0001780065 · 10% owner Atlas Venture Associates Opportunity I, LLC · CIK 0001780066 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 5,045,242 F1 · kind: Shares were sold pursuant to a Rule 10b5-1 trading plan. F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $29.95 to $29.99 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder 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 ranges set forth in footnotes (2) and (5). F3 · ownership.direct: These shares are held directly by Atlas Venture Fund X, L.P. ("Atlas Venture Fund X"). The general partner of Atlas Venture Fund X is Atlas Venture Associates X, L.P. ("AVA X LP"). Atlas Venture Associates X, LLC ("AVA X LLC") is the general partner of AVA X LP. Each of AVA X LP and AVA X LLC disclaims Section 16 beneficial ownership of the securities held by Atlas Venture Fund X, except to the extent of its pecuniary interest therein, if any. Read SEC document
December 29, 2022 Filed Jan 4, 2023 02:28 UTC	Disc Medicine, Inc. IRON · Entity 2273	OtherCommon Stock	882,224	Not disclosed	Not disclosed	Disclosure SEC source: 0000899243-23-000461 · doc4.xml · nonDerivative · entry 2 Atlas Venture Fund X, L.P. · CIK 0001628098 · 10% owner ATLAS VENTURE ASSOCIATES X, L.P. · CIK 0001742766 · 10% owner Atlas Venture Associates X, LLC · CIK 0001742765 · 10% owner Atlas Venture Opportunity Fund I, L.P. · CIK 0001759241 · 10% owner Atlas Venture Associates Opportunity I, L.P. · CIK 0001780065 · 10% owner Atlas Venture Associates Opportunity I, LLC · CIK 0001780066 · 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: 955,156 F1 · kind: Gemini Therapeutics, Inc. (" Gemini"), and Disc Medicine Opco, Inc. (f/k/a Disc Medicine, Inc.) ("Disc"), entered into an Agreement and Plan of Merger and Reorganization (the "Merger Agreement"), on August 9, 2022, pursuant to which, among other matters, a direct, wholly owned subsidiary of Gemini, Gemstone Merger Sub, Inc. ("Merger Sub"), merged with and into Disc, with Disc surviving as a wholly owned subsidiary of Gemini, and the surviving corporation of the merger, which transaction is referred to herein as the merger. The merger closed on on December 29, 2022. Following the effectiveness of the merger on December 29, 2022, the surviving corporation changed its name from Gemini to Disc Medicine, Inc. (the "Issuer"). F1 · price: Gemini Therapeutics, Inc. (" Gemini"), and Disc Medicine Opco, Inc. (f/k/a Disc Medicine, Inc.) ("Disc"), entered into an Agreement and Plan of Merger and Reorganization (the "Merger Agreement"), on August 9, 2022, pursuant to which, among other matters, a direct, wholly owned subsidiary of Gemini, Gemstone Merger Sub, Inc. ("Merger Sub"), merged with and into Disc, with Disc surviving as a wholly owned subsidiary of Gemini, and the surviving corporation of the merger, which transaction is referred to herein as the merger. The merger closed on on December 29, 2022. Following the effectiveness of the merger on December 29, 2022, the surviving corporation changed its name from Gemini to Disc Medicine, Inc. (the "Issuer"). F2 · price: (Continued from footnote 1) Upon the closing of the merger, each share of Disc common stock (after giving effect to the conversion of each share of Disc's preferred stock into Disc common stock and including all such shares that are converted into Disc common stock) was converted into the right to receive a number of shares of Gemini common stock equal to an exchange ratio of 0.1096. F4 · ownership.nature: These shares are held directly by Atlas Venture Opportunity Fund I, L.P. ("Atlas Opportunity I"). Atlas Venture Associates Opportunity I, L.P. ("Associates I") is the general partner of Atlas Opportunity I. Atlas Venture Associates Opportunity I, LLC ("Associates I LLC") is the general partner of Associates I. Each of Associates I and Associates I LLC disclaims Section 16 beneficial ownership of the securities held by Atlas Opportunity I, except to the extent of its pecuniary interest therein, if any. Read SEC document
December 29, 2022 Filed Jan 4, 2023 02:28 UTC	Disc Medicine, Inc. IRON · Entity 2273	OtherCommon Stock	1,835,799	Not disclosed	Not disclosed	Disclosure SEC source: 0000899243-23-000461 · doc4.xml · nonDerivative · entry 1 Atlas Venture Fund X, L.P. · CIK 0001628098 · 10% owner ATLAS VENTURE ASSOCIATES X, L.P. · CIK 0001742766 · 10% owner Atlas Venture Associates X, LLC · CIK 0001742765 · 10% owner Atlas Venture Opportunity Fund I, L.P. · CIK 0001759241 · 10% owner Atlas Venture Associates Opportunity I, L.P. · CIK 0001780065 · 10% owner Atlas Venture Associates Opportunity I, LLC · CIK 0001780066 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 2,237,303 F1 · kind: Gemini Therapeutics, Inc. (" Gemini"), and Disc Medicine Opco, Inc. (f/k/a Disc Medicine, Inc.) ("Disc"), entered into an Agreement and Plan of Merger and Reorganization (the "Merger Agreement"), on August 9, 2022, pursuant to which, among other matters, a direct, wholly owned subsidiary of Gemini, Gemstone Merger Sub, Inc. ("Merger Sub"), merged with and into Disc, with Disc surviving as a wholly owned subsidiary of Gemini, and the surviving corporation of the merger, which transaction is referred to herein as the merger. The merger closed on on December 29, 2022. Following the effectiveness of the merger on December 29, 2022, the surviving corporation changed its name from Gemini to Disc Medicine, Inc. (the "Issuer"). F1 · price: Gemini Therapeutics, Inc. (" Gemini"), and Disc Medicine Opco, Inc. (f/k/a Disc Medicine, Inc.) ("Disc"), entered into an Agreement and Plan of Merger and Reorganization (the "Merger Agreement"), on August 9, 2022, pursuant to which, among other matters, a direct, wholly owned subsidiary of Gemini, Gemstone Merger Sub, Inc. ("Merger Sub"), merged with and into Disc, with Disc surviving as a wholly owned subsidiary of Gemini, and the surviving corporation of the merger, which transaction is referred to herein as the merger. The merger closed on on December 29, 2022. Following the effectiveness of the merger on December 29, 2022, the surviving corporation changed its name from Gemini to Disc Medicine, Inc. (the "Issuer"). F2 · price: (Continued from footnote 1) Upon the closing of the merger, each share of Disc common stock (after giving effect to the conversion of each share of Disc's preferred stock into Disc common stock and including all such shares that are converted into Disc common stock) was converted into the right to receive a number of shares of Gemini common stock equal to an exchange ratio of 0.1096. F3 · ownership.direct: These shares are held directly by Atlas Venture Fund X, L.P. ("Atlas X"). Atlas Venture Associates X, L.P. ("Associates X") is the general partner of Atlas X. Atlas Venture Associates X, LLC ("Associates X LLC") is the general partner of Associates X. Each of Associates X and Associates X LLC disclaims Section 16 beneficial ownership of the securities held by Atlas X, except to the extent of its pecuniary interest therein, if any. Read SEC document
December 15, 2022 Filed Dec 16, 2022 22:03 UTC	Kymera Therapeutics, Inc. KYMR · Entity 3545	SaleCommon Stock	717	$30.00	$21,510.00	Disclosure SEC source: 0001209191-22-061706 · doc4.xml · nonDerivative · entry 12 Atlas Venture Fund X, L.P. · CIK 0001628098 · 10% owner ATLAS VENTURE ASSOCIATES X, L.P. · CIK 0001742766 · 10% owner Atlas Venture Associates X, LLC · CIK 0001742765 · 10% owner Atlas Venture Opportunity Fund I, L.P. · CIK 0001759241 · 10% owner Atlas Venture Associates Opportunity I, L.P. · CIK 0001780065 · 10% owner Atlas Venture Associates Opportunity I, LLC · CIK 0001780066 · 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: 917,811 F1 · kind: Shares were sold pursuant to a Rule 10b5-1 trading plan. F9 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $29.95 to $30.20 inclusive. F8 · ownership.nature: The shares are owned directly by Atlas Venture Opportunity Fund I, L.P. ("AVOF I"). Atlas Venture Associates Opportunity I, L.P. ("AVAO LP") is the general partner of AVOF I. Atlas Venture Associates Opportunity I, LLC ("AVAO LLC") is the general partner of AVAO LP. Each of AVAO LP and AVAO LLC disclaims Section 16 beneficial ownership of the securities held by AVOF I, except to the extent of its pecuniary interest therein, if any. Read SEC document
December 15, 2022 Filed Dec 16, 2022 22:03 UTC	Kymera Therapeutics, Inc. KYMR · Entity 3545	SaleCommon Stock	2,561	$30.00	$76,830.00	Disclosure SEC source: 0001209191-22-061706 · doc4.xml · nonDerivative · entry 11 Atlas Venture Fund X, L.P. · CIK 0001628098 · 10% owner ATLAS VENTURE ASSOCIATES X, L.P. · CIK 0001742766 · 10% owner Atlas Venture Associates X, LLC · CIK 0001742765 · 10% owner Atlas Venture Opportunity Fund I, L.P. · CIK 0001759241 · 10% owner Atlas Venture Associates Opportunity I, L.P. · CIK 0001780065 · 10% owner Atlas Venture Associates Opportunity I, LLC · CIK 0001780066 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 5,066,925 F1 · kind: Shares were sold pursuant to a Rule 10b5-1 trading plan. F9 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $29.95 to $30.20 inclusive. F3 · ownership.direct: These shares are held directly by Atlas Venture Fund X, L.P. ("Atlas Venture Fund X"). The general partner of Atlas Venture Fund X is Atlas Venture Associates X, L.P. ("AVA X LP"). Atlas Venture Associates X, LLC ("AVA X LLC") is the general partner of AVA X LP. Each of AVA X LP and AVA X LLC disclaims Section 16 beneficial ownership of the securities held by Atlas Venture Fund X, except to the extent of its pecuniary interest therein, if any. Read SEC document
December 14, 2022 Filed Dec 16, 2022 22:03 UTC	Kymera Therapeutics, Inc. KYMR · Entity 3545	SaleCommon Stock	3,733	$34.02	$126,996.66	Disclosure SEC source: 0001209191-22-061706 · doc4.xml · nonDerivative · entry 10 Atlas Venture Fund X, L.P. · CIK 0001628098 · 10% owner ATLAS VENTURE ASSOCIATES X, L.P. · CIK 0001742766 · 10% owner Atlas Venture Associates X, LLC · CIK 0001742765 · 10% owner Atlas Venture Opportunity Fund I, L.P. · CIK 0001759241 · 10% owner Atlas Venture Associates Opportunity I, L.P. · CIK 0001780065 · 10% owner Atlas Venture Associates Opportunity I, LLC · CIK 0001780066 · 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: 918,528 F1 · kind: Shares were sold pursuant to a Rule 10b5-1 trading plan. F7 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $33.95 to $34.20 inclusive. F8 · ownership.nature: The shares are owned directly by Atlas Venture Opportunity Fund I, L.P. ("AVOF I"). Atlas Venture Associates Opportunity I, L.P. ("AVAO LP") is the general partner of AVOF I. Atlas Venture Associates Opportunity I, LLC ("AVAO LLC") is the general partner of AVAO LP. Each of AVAO LP and AVAO LLC disclaims Section 16 beneficial ownership of the securities held by AVOF I, except to the extent of its pecuniary interest therein, if any. Read SEC document
December 14, 2022 Filed Dec 16, 2022 22:03 UTC	Kymera Therapeutics, Inc. KYMR · Entity 3545	SaleCommon Stock	3,919	$33.34	$130,659.46	Disclosure SEC source: 0001209191-22-061706 · doc4.xml · nonDerivative · entry 9 Atlas Venture Fund X, L.P. · CIK 0001628098 · 10% owner ATLAS VENTURE ASSOCIATES X, L.P. · CIK 0001742766 · 10% owner Atlas Venture Associates X, LLC · CIK 0001742765 · 10% owner Atlas Venture Opportunity Fund I, L.P. · CIK 0001759241 · 10% owner Atlas Venture Associates Opportunity I, L.P. · CIK 0001780065 · 10% owner Atlas Venture Associates Opportunity I, LLC · CIK 0001780066 · 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: 922,261 F1 · kind: Shares were sold pursuant to a Rule 10b5-1 trading plan. F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $32.95 to $33.89 inclusive. F8 · ownership.nature: The shares are owned directly by Atlas Venture Opportunity Fund I, L.P. ("AVOF I"). Atlas Venture Associates Opportunity I, L.P. ("AVAO LP") is the general partner of AVOF I. Atlas Venture Associates Opportunity I, LLC ("AVAO LLC") is the general partner of AVAO LP. Each of AVAO LP and AVAO LLC disclaims Section 16 beneficial ownership of the securities held by AVOF I, except to the extent of its pecuniary interest therein, if any. Read SEC document
December 14, 2022 Filed Dec 16, 2022 22:03 UTC	Kymera Therapeutics, Inc. KYMR · Entity 3545	SaleCommon Stock	15,324	$32.33	$495,424.92	Disclosure SEC source: 0001209191-22-061706 · doc4.xml · nonDerivative · entry 8 Atlas Venture Fund X, L.P. · CIK 0001628098 · 10% owner ATLAS VENTURE ASSOCIATES X, L.P. · CIK 0001742766 · 10% owner Atlas Venture Associates X, LLC · CIK 0001742765 · 10% owner Atlas Venture Opportunity Fund I, L.P. · CIK 0001759241 · 10% owner Atlas Venture Associates Opportunity I, L.P. · CIK 0001780065 · 10% owner Atlas Venture Associates Opportunity I, LLC · CIK 0001780066 · 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: 926,180 F1 · kind: Shares were sold pursuant to a Rule 10b5-1 trading plan. F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $31.95 to $32.94 inclusive. F8 · ownership.nature: The shares are owned directly by Atlas Venture Opportunity Fund I, L.P. ("AVOF I"). Atlas Venture Associates Opportunity I, L.P. ("AVAO LP") is the general partner of AVOF I. Atlas Venture Associates Opportunity I, LLC ("AVAO LLC") is the general partner of AVAO LP. Each of AVAO LP and AVAO LLC disclaims Section 16 beneficial ownership of the securities held by AVOF I, except to the extent of its pecuniary interest therein, if any. Read SEC document
December 14, 2022 Filed Dec 16, 2022 22:03 UTC	Kymera Therapeutics, Inc. KYMR · Entity 3545	SaleCommon Stock	28,329	$31.44	$890,663.76	Disclosure SEC source: 0001209191-22-061706 · doc4.xml · nonDerivative · entry 7 Atlas Venture Fund X, L.P. · CIK 0001628098 · 10% owner ATLAS VENTURE ASSOCIATES X, L.P. · CIK 0001742766 · 10% owner Atlas Venture Associates X, LLC · CIK 0001742765 · 10% owner Atlas Venture Opportunity Fund I, L.P. · CIK 0001759241 · 10% owner Atlas Venture Associates Opportunity I, L.P. · CIK 0001780065 · 10% owner Atlas Venture Associates Opportunity I, LLC · CIK 0001780066 · 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: 941,504 F1 · kind: Shares were sold pursuant to a Rule 10b5-1 trading plan. F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $30.95 to $31.945 inclusive. F8 · ownership.nature: The shares are owned directly by Atlas Venture Opportunity Fund I, L.P. ("AVOF I"). Atlas Venture Associates Opportunity I, L.P. ("AVAO LP") is the general partner of AVOF I. Atlas Venture Associates Opportunity I, LLC ("AVAO LLC") is the general partner of AVAO LP. Each of AVAO LP and AVAO LLC disclaims Section 16 beneficial ownership of the securities held by AVOF I, except to the extent of its pecuniary interest therein, if any. Read SEC document
December 14, 2022 Filed Dec 16, 2022 22:03 UTC	Kymera Therapeutics, Inc. KYMR · Entity 3545	SaleCommon Stock	31,584	$30.28	$956,363.52	Disclosure SEC source: 0001209191-22-061706 · doc4.xml · nonDerivative · entry 6 Atlas Venture Fund X, L.P. · CIK 0001628098 · 10% owner ATLAS VENTURE ASSOCIATES X, L.P. · CIK 0001742766 · 10% owner Atlas Venture Associates X, LLC · CIK 0001742765 · 10% owner Atlas Venture Opportunity Fund I, L.P. · CIK 0001759241 · 10% owner Atlas Venture Associates Opportunity I, L.P. · CIK 0001780065 · 10% owner Atlas Venture Associates Opportunity I, LLC · CIK 0001780066 · 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: 969,833 F1 · kind: Shares were sold pursuant to a Rule 10b5-1 trading plan. F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $29.95 to $30.94 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder 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 ranges set forth in footnotes (2), (4), (5), (6), (7) and (9). F8 · ownership.nature: The shares are owned directly by Atlas Venture Opportunity Fund I, L.P. ("AVOF I"). Atlas Venture Associates Opportunity I, L.P. ("AVAO LP") is the general partner of AVOF I. Atlas Venture Associates Opportunity I, LLC ("AVAO LLC") is the general partner of AVAO LP. Each of AVAO LP and AVAO LLC disclaims Section 16 beneficial ownership of the securities held by AVOF I, except to the extent of its pecuniary interest therein, if any. Read SEC document
December 14, 2022 Filed Dec 16, 2022 22:03 UTC	Kymera Therapeutics, Inc. KYMR · Entity 3545	SaleCommon Stock	13,335	$34.02	$453,656.70	Disclosure SEC source: 0001209191-22-061706 · doc4.xml · nonDerivative · entry 5 Atlas Venture Fund X, L.P. · CIK 0001628098 · 10% owner ATLAS VENTURE ASSOCIATES X, L.P. · CIK 0001742766 · 10% owner Atlas Venture Associates X, LLC · CIK 0001742765 · 10% owner Atlas Venture Opportunity Fund I, L.P. · CIK 0001759241 · 10% owner Atlas Venture Associates Opportunity I, L.P. · CIK 0001780065 · 10% owner Atlas Venture Associates Opportunity I, LLC · CIK 0001780066 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 5,069,486 F1 · kind: Shares were sold pursuant to a Rule 10b5-1 trading plan. F7 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $33.95 to $34.20 inclusive. F3 · ownership.direct: These shares are held directly by Atlas Venture Fund X, L.P. ("Atlas Venture Fund X"). The general partner of Atlas Venture Fund X is Atlas Venture Associates X, L.P. ("AVA X LP"). Atlas Venture Associates X, LLC ("AVA X LLC") is the general partner of AVA X LP. Each of AVA X LP and AVA X LLC disclaims Section 16 beneficial ownership of the securities held by Atlas Venture Fund X, except to the extent of its pecuniary interest therein, if any. Read SEC document
December 14, 2022 Filed Dec 16, 2022 22:03 UTC	Kymera Therapeutics, Inc. KYMR · Entity 3545	SaleCommon Stock	13,997	$33.34	$466,659.98	Disclosure SEC source: 0001209191-22-061706 · doc4.xml · nonDerivative · entry 4 Atlas Venture Fund X, L.P. · CIK 0001628098 · 10% owner ATLAS VENTURE ASSOCIATES X, L.P. · CIK 0001742766 · 10% owner Atlas Venture Associates X, LLC · CIK 0001742765 · 10% owner Atlas Venture Opportunity Fund I, L.P. · CIK 0001759241 · 10% owner Atlas Venture Associates Opportunity I, L.P. · CIK 0001780065 · 10% owner Atlas Venture Associates Opportunity I, LLC · CIK 0001780066 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 5,082,821 F1 · kind: Shares were sold pursuant to a Rule 10b5-1 trading plan. F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $32.95 to $33.89 inclusive. F3 · ownership.direct: These shares are held directly by Atlas Venture Fund X, L.P. ("Atlas Venture Fund X"). The general partner of Atlas Venture Fund X is Atlas Venture Associates X, L.P. ("AVA X LP"). Atlas Venture Associates X, LLC ("AVA X LLC") is the general partner of AVA X LP. Each of AVA X LP and AVA X LLC disclaims Section 16 beneficial ownership of the securities held by Atlas Venture Fund X, except to the extent of its pecuniary interest therein, if any. Read SEC document
December 14, 2022 Filed Dec 16, 2022 22:03 UTC	Kymera Therapeutics, Inc. KYMR · Entity 3545	SaleCommon Stock	54,737	$32.33	$1,769,647.21	Disclosure SEC source: 0001209191-22-061706 · doc4.xml · nonDerivative · entry 3 Atlas Venture Fund X, L.P. · CIK 0001628098 · 10% owner ATLAS VENTURE ASSOCIATES X, L.P. · CIK 0001742766 · 10% owner Atlas Venture Associates X, LLC · CIK 0001742765 · 10% owner Atlas Venture Opportunity Fund I, L.P. · CIK 0001759241 · 10% owner Atlas Venture Associates Opportunity I, L.P. · CIK 0001780065 · 10% owner Atlas Venture Associates Opportunity I, LLC · CIK 0001780066 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 5,096,818 F1 · kind: Shares were sold pursuant to a Rule 10b5-1 trading plan. F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $31.95 to $32.94 inclusive. F3 · ownership.direct: These shares are held directly by Atlas Venture Fund X, L.P. ("Atlas Venture Fund X"). The general partner of Atlas Venture Fund X is Atlas Venture Associates X, L.P. ("AVA X LP"). Atlas Venture Associates X, LLC ("AVA X LLC") is the general partner of AVA X LP. Each of AVA X LP and AVA X LLC disclaims Section 16 beneficial ownership of the securities held by Atlas Venture Fund X, except to the extent of its pecuniary interest therein, if any. Read SEC document
December 14, 2022 Filed Dec 16, 2022 22:03 UTC	Kymera Therapeutics, Inc. KYMR · Entity 3545	SaleCommon Stock	101,189	$31.44	$3,181,382.16	Disclosure SEC source: 0001209191-22-061706 · doc4.xml · nonDerivative · entry 2 Atlas Venture Fund X, L.P. · CIK 0001628098 · 10% owner ATLAS VENTURE ASSOCIATES X, L.P. · CIK 0001742766 · 10% owner Atlas Venture Associates X, LLC · CIK 0001742765 · 10% owner Atlas Venture Opportunity Fund I, L.P. · CIK 0001759241 · 10% owner Atlas Venture Associates Opportunity I, L.P. · CIK 0001780065 · 10% owner Atlas Venture Associates Opportunity I, LLC · CIK 0001780066 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 5,151,555 F1 · kind: Shares were sold pursuant to a Rule 10b5-1 trading plan. F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $30.95 to $31.945 inclusive. F3 · ownership.direct: These shares are held directly by Atlas Venture Fund X, L.P. ("Atlas Venture Fund X"). The general partner of Atlas Venture Fund X is Atlas Venture Associates X, L.P. ("AVA X LP"). Atlas Venture Associates X, LLC ("AVA X LLC") is the general partner of AVA X LP. Each of AVA X LP and AVA X LLC disclaims Section 16 beneficial ownership of the securities held by Atlas Venture Fund X, except to the extent of its pecuniary interest therein, if any. Read SEC document
December 14, 2022 Filed Dec 16, 2022 22:03 UTC	Kymera Therapeutics, Inc. KYMR · Entity 3545	SaleCommon Stock	112,819	$30.28	$3,416,159.32	Disclosure SEC source: 0001209191-22-061706 · doc4.xml · nonDerivative · entry 1 Atlas Venture Fund X, L.P. · CIK 0001628098 · 10% owner ATLAS VENTURE ASSOCIATES X, L.P. · CIK 0001742766 · 10% owner Atlas Venture Associates X, LLC · CIK 0001742765 · 10% owner Atlas Venture Opportunity Fund I, L.P. · CIK 0001759241 · 10% owner Atlas Venture Associates Opportunity I, L.P. · CIK 0001780065 · 10% owner Atlas Venture Associates Opportunity I, LLC · CIK 0001780066 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 5,252,744 F1 · kind: Shares were sold pursuant to a Rule 10b5-1 trading plan. F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $29.95 to $30.94 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder 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 ranges set forth in footnotes (2), (4), (5), (6), (7) and (9). F3 · ownership.direct: These shares are held directly by Atlas Venture Fund X, L.P. ("Atlas Venture Fund X"). The general partner of Atlas Venture Fund X is Atlas Venture Associates X, L.P. ("AVA X LP"). Atlas Venture Associates X, LLC ("AVA X LLC") is the general partner of AVA X LP. Each of AVA X LP and AVA X LLC disclaims Section 16 beneficial ownership of the securities held by Atlas Venture Fund X, except to the extent of its pecuniary interest therein, if any. Read SEC document
November 03, 2022 Filed Nov 4, 2022 20:30 UTC	Kymera Therapeutics, Inc. KYMR · Entity 3545	SaleCommon Stock	21,085	$30.00	$632,550.00	Disclosure SEC source: 0001209191-22-055808 · doc4.xml · nonDerivative · entry 4 Atlas Venture Fund X, L.P. · CIK 0001628098 · 10% owner ATLAS VENTURE ASSOCIATES X, L.P. · CIK 0001742766 · 10% owner Atlas Venture Associates X, LLC · CIK 0001742765 · 10% owner Atlas Venture Opportunity Fund I, L.P. · CIK 0001759241 · 10% owner Atlas Venture Associates Opportunity I, L.P. · CIK 0001780065 · 10% owner Atlas Venture Associates Opportunity I, LLC · CIK 0001780066 · 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: 1,001,417 F1 · kind: Shares were sold pursuant to a Rule 10b5-1 trading plan. F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $30.00 to $30.10 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder 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. F4 · ownership.nature: The shares are owned directly by Atlas Venture Opportunity Fund I, L.P. ("AVOF I"). Atlas Venture Associates Opportunity I, L.P. ("AVAO LP") is the general partner of AVOF I. Atlas Venture Associates Opportunity I, LLC ("AVAO LLC") is the general partner of AVAO LP. Each of AVAO LP and AVAO LLC disclaims Section 16 beneficial ownership of the securities held by AVOF I, except to the extent of its pecuniary interest therein, if any. Read SEC document
November 03, 2022 Filed Nov 4, 2022 20:30 UTC	Kymera Therapeutics, Inc. KYMR · Entity 3545	SaleCommon Stock	75,312	$30.00	$2,259,360.00	Disclosure SEC source: 0001209191-22-055808 · doc4.xml · nonDerivative · entry 3 Atlas Venture Fund X, L.P. · CIK 0001628098 · 10% owner ATLAS VENTURE ASSOCIATES X, L.P. · CIK 0001742766 · 10% owner Atlas Venture Associates X, LLC · CIK 0001742765 · 10% owner Atlas Venture Opportunity Fund I, L.P. · CIK 0001759241 · 10% owner Atlas Venture Associates Opportunity I, L.P. · CIK 0001780065 · 10% owner Atlas Venture Associates Opportunity I, LLC · CIK 0001780066 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 5,365,563 F1 · kind: Shares were sold pursuant to a Rule 10b5-1 trading plan. F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $30.00 to $30.10 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder 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. F3 · ownership.direct: These shares are held directly by Atlas Venture Fund X, L.P. ("Atlas Venture Fund X"). The general partner of Atlas Venture Fund X is Atlas Venture Associates X, L.P. ("AVA X LP"). Atlas Venture Associates X, LLC ("AVA X LLC") is the general partner of AVA X LP. Each of AVA X LP and AVA X LLC disclaims Section 16 beneficial ownership of the securities held by Atlas Venture Fund X, except to the extent of its pecuniary interest therein, if any. Read SEC document
November 02, 2022 Filed Nov 4, 2022 20:30 UTC	Kymera Therapeutics, Inc. KYMR · Entity 3545	SaleCommon Stock	27,038	$30.02	$811,680.76	Disclosure SEC source: 0001209191-22-055808 · doc4.xml · nonDerivative · entry 2 Atlas Venture Fund X, L.P. · CIK 0001628098 · 10% owner ATLAS VENTURE ASSOCIATES X, L.P. · CIK 0001742766 · 10% owner Atlas Venture Associates X, LLC · CIK 0001742765 · 10% owner Atlas Venture Opportunity Fund I, L.P. · CIK 0001759241 · 10% owner Atlas Venture Associates Opportunity I, L.P. · CIK 0001780065 · 10% owner Atlas Venture Associates Opportunity I, LLC · CIK 0001780066 · 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: 1,022,502 F1 · kind: Shares were sold pursuant to a Rule 10b5-1 trading plan. F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $29.95 to $30.61 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder 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. F4 · ownership.nature: The shares are owned directly by Atlas Venture Opportunity Fund I, L.P. ("AVOF I"). Atlas Venture Associates Opportunity I, L.P. ("AVAO LP") is the general partner of AVOF I. Atlas Venture Associates Opportunity I, LLC ("AVAO LLC") is the general partner of AVAO LP. Each of AVAO LP and AVAO LLC disclaims Section 16 beneficial ownership of the securities held by AVOF I, except to the extent of its pecuniary interest therein, if any. Read SEC document
November 02, 2022 Filed Nov 4, 2022 20:30 UTC	Kymera Therapeutics, Inc. KYMR · Entity 3545	SaleCommon Stock	96,581	$30.02	$2,899,361.62	Disclosure SEC source: 0001209191-22-055808 · doc4.xml · nonDerivative · entry 1 Atlas Venture Fund X, L.P. · CIK 0001628098 · 10% owner ATLAS VENTURE ASSOCIATES X, L.P. · CIK 0001742766 · 10% owner Atlas Venture Associates X, LLC · CIK 0001742765 · 10% owner Atlas Venture Opportunity Fund I, L.P. · CIK 0001759241 · 10% owner Atlas Venture Associates Opportunity I, L.P. · CIK 0001780065 · 10% owner Atlas Venture Associates Opportunity I, LLC · CIK 0001780066 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 5,440,875 F1 · kind: Shares were sold pursuant to a Rule 10b5-1 trading plan. F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $29.95 to $30.61 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder 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. F3 · ownership.direct: These shares are held directly by Atlas Venture Fund X, L.P. ("Atlas Venture Fund X"). The general partner of Atlas Venture Fund X is Atlas Venture Associates X, L.P. ("AVA X LP"). Atlas Venture Associates X, LLC ("AVA X LLC") is the general partner of AVA X LP. Each of AVA X LP and AVA X LLC disclaims Section 16 beneficial ownership of the securities held by Atlas Venture Fund X, except to the extent of its pecuniary interest therein, if any. Read SEC document
November 01, 2022 Filed Nov 1, 2022 23:34 UTC	Kymera Therapeutics, Inc. KYMR · Entity 3545	SaleCommon Stock	1,044	$31.08	$32,447.52	Disclosure SEC source: 0001209191-22-055142 · doc4.xml · nonDerivative · entry 8 Atlas Venture Fund X, L.P. · CIK 0001628098 · 10% owner ATLAS VENTURE ASSOCIATES X, L.P. · CIK 0001742766 · 10% owner Atlas Venture Associates X, LLC · CIK 0001742765 · 10% owner Atlas Venture Opportunity Fund I, L.P. · CIK 0001759241 · 10% owner Atlas Venture Associates Opportunity I, L.P. · CIK 0001780065 · 10% owner Atlas Venture Associates Opportunity I, LLC · CIK 0001780066 · 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: 1,049,540 F1 · kind: Shares were sold pursuant to a Rule 10b5-1 trading plan. F7 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $30.95 to $31.47 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder 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. F4 · ownership.nature: The shares are owned directly by Atlas Venture Opportunity Fund I, L.P. ("AVOF I"). Atlas Venture Associates Opportunity I, L.P. ("AVAO LP") is the general partner of AVOF I. Atlas Venture Associates Opportunity I, LLC ("AVAO LLC") is the general partner of AVAO LP. Each of AVAO LP and AVAO LLC disclaims Section 16 beneficial ownership of the securities held by AVOF I, except to the extent of its pecuniary interest therein, if any. Read SEC document
November 01, 2022 Filed Nov 1, 2022 23:34 UTC	Kymera Therapeutics, Inc. KYMR · Entity 3545	SaleCommon Stock	3,727	$31.08	$115,835.16	Disclosure SEC source: 0001209191-22-055142 · doc4.xml · nonDerivative · entry 7 Atlas Venture Fund X, L.P. · CIK 0001628098 · 10% owner ATLAS VENTURE ASSOCIATES X, L.P. · CIK 0001742766 · 10% owner Atlas Venture Associates X, LLC · CIK 0001742765 · 10% owner Atlas Venture Opportunity Fund I, L.P. · CIK 0001759241 · 10% owner Atlas Venture Associates Opportunity I, L.P. · CIK 0001780065 · 10% owner Atlas Venture Associates Opportunity I, LLC · CIK 0001780066 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 5,537,456 F1 · kind: Shares were sold pursuant to a Rule 10b5-1 trading plan. F7 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $30.95 to $31.47 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder 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. F3 · ownership.direct: These shares are held directly by Atlas Venture Fund X, L.P. ("Atlas Venture Fund X"). The general partner of Atlas Venture Fund X is Atlas Venture Associates X, L.P. ("AVA X LP"). Atlas Venture Associates X, LLC ("AVA X LLC") is the general partner of AVA X LP. Each of AVA X LP and AVA X LLC disclaims Section 16 beneficial ownership of the securities held by Atlas Venture Fund X, except to the extent of its pecuniary interest therein, if any. Read SEC document
November 01, 2022 Filed Nov 1, 2022 23:34 UTC	Kymera Therapeutics, Inc. KYMR · Entity 3545	SaleCommon Stock	15,804	$30.57	$483,128.28	Disclosure SEC source: 0001209191-22-055142 · doc4.xml · nonDerivative · entry 6 Atlas Venture Fund X, L.P. · CIK 0001628098 · 10% owner ATLAS VENTURE ASSOCIATES X, L.P. · CIK 0001742766 · 10% owner Atlas Venture Associates X, LLC · CIK 0001742765 · 10% owner Atlas Venture Opportunity Fund I, L.P. · CIK 0001759241 · 10% owner Atlas Venture Associates Opportunity I, L.P. · CIK 0001780065 · 10% owner Atlas Venture Associates Opportunity I, LLC · CIK 0001780066 · 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: 1,050,584 F1 · kind: Shares were sold pursuant to a Rule 10b5-1 trading plan. F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $29.95 to $30.94 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder 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. F4 · ownership.nature: The shares are owned directly by Atlas Venture Opportunity Fund I, L.P. ("AVOF I"). Atlas Venture Associates Opportunity I, L.P. ("AVAO LP") is the general partner of AVOF I. Atlas Venture Associates Opportunity I, LLC ("AVAO LLC") is the general partner of AVAO LP. Each of AVAO LP and AVAO LLC disclaims Section 16 beneficial ownership of the securities held by AVOF I, except to the extent of its pecuniary interest therein, if any. Read SEC document
November 01, 2022 Filed Nov 1, 2022 23:34 UTC	Kymera Therapeutics, Inc. KYMR · Entity 3545	SaleCommon Stock	56,455	$30.57	$1,725,829.35	Disclosure SEC source: 0001209191-22-055142 · doc4.xml · nonDerivative · entry 5 Atlas Venture Fund X, L.P. · CIK 0001628098 · 10% owner ATLAS VENTURE ASSOCIATES X, L.P. · CIK 0001742766 · 10% owner Atlas Venture Associates X, LLC · CIK 0001742765 · 10% owner Atlas Venture Opportunity Fund I, L.P. · CIK 0001759241 · 10% owner Atlas Venture Associates Opportunity I, L.P. · CIK 0001780065 · 10% owner Atlas Venture Associates Opportunity I, LLC · CIK 0001780066 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 5,541,183 F1 · kind: Shares were sold pursuant to a Rule 10b5-1 trading plan. F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $29.95 to $30.94 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder 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. F3 · ownership.direct: These shares are held directly by Atlas Venture Fund X, L.P. ("Atlas Venture Fund X"). The general partner of Atlas Venture Fund X is Atlas Venture Associates X, L.P. ("AVA X LP"). Atlas Venture Associates X, LLC ("AVA X LLC") is the general partner of AVA X LP. Each of AVA X LP and AVA X LLC disclaims Section 16 beneficial ownership of the securities held by Atlas Venture Fund X, except to the extent of its pecuniary interest therein, if any. Read SEC document
October 31, 2022 Filed Nov 1, 2022 23:34 UTC	Kymera Therapeutics, Inc. KYMR · Entity 3545	SaleCommon Stock	26,383	$30.23	$797,558.09	Disclosure SEC source: 0001209191-22-055142 · doc4.xml · nonDerivative · entry 4 Atlas Venture Fund X, L.P. · CIK 0001628098 · 10% owner ATLAS VENTURE ASSOCIATES X, L.P. · CIK 0001742766 · 10% owner Atlas Venture Associates X, LLC · CIK 0001742765 · 10% owner Atlas Venture Opportunity Fund I, L.P. · CIK 0001759241 · 10% owner Atlas Venture Associates Opportunity I, L.P. · CIK 0001780065 · 10% owner Atlas Venture Associates Opportunity I, LLC · CIK 0001780066 · 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: 1,066,388 F1 · kind: Shares were sold pursuant to a Rule 10b5-1 trading plan. F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $29.95 to $30.67 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder 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. F4 · ownership.nature: The shares are owned directly by Atlas Venture Opportunity Fund I, L.P. ("AVOF I"). Atlas Venture Associates Opportunity I, L.P. ("AVAO LP") is the general partner of AVOF I. Atlas Venture Associates Opportunity I, LLC ("AVAO LLC") is the general partner of AVAO LP. Each of AVAO LP and AVAO LLC disclaims Section 16 beneficial ownership of the securities held by AVOF I, except to the extent of its pecuniary interest therein, if any. Read SEC document
October 31, 2022 Filed Nov 1, 2022 23:34 UTC	Kymera Therapeutics, Inc. KYMR · Entity 3545	SaleCommon Stock	94,239	$30.23	$2,848,844.97	Disclosure SEC source: 0001209191-22-055142 · doc4.xml · nonDerivative · entry 3 Atlas Venture Fund X, L.P. · CIK 0001628098 · 10% owner ATLAS VENTURE ASSOCIATES X, L.P. · CIK 0001742766 · 10% owner Atlas Venture Associates X, LLC · CIK 0001742765 · 10% owner Atlas Venture Opportunity Fund I, L.P. · CIK 0001759241 · 10% owner Atlas Venture Associates Opportunity I, L.P. · CIK 0001780065 · 10% owner Atlas Venture Associates Opportunity I, LLC · CIK 0001780066 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 5,597,638 F1 · kind: Shares were sold pursuant to a Rule 10b5-1 trading plan. F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $29.95 to $30.67 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder 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. F3 · ownership.direct: These shares are held directly by Atlas Venture Fund X, L.P. ("Atlas Venture Fund X"). The general partner of Atlas Venture Fund X is Atlas Venture Associates X, L.P. ("AVA X LP"). Atlas Venture Associates X, LLC ("AVA X LLC") is the general partner of AVA X LP. Each of AVA X LP and AVA X LLC disclaims Section 16 beneficial ownership of the securities held by Atlas Venture Fund X, except to the extent of its pecuniary interest therein, if any. Read SEC document
October 28, 2022 Filed Nov 1, 2022 23:34 UTC	Kymera Therapeutics, Inc. KYMR · Entity 3545	SaleCommon Stock	19,915	$30.00	$597,450.00	Disclosure SEC source: 0001209191-22-055142 · doc4.xml · nonDerivative · entry 2 Atlas Venture Fund X, L.P. · CIK 0001628098 · 10% owner ATLAS VENTURE ASSOCIATES X, L.P. · CIK 0001742766 · 10% owner Atlas Venture Associates X, LLC · CIK 0001742765 · 10% owner Atlas Venture Opportunity Fund I, L.P. · CIK 0001759241 · 10% owner Atlas Venture Associates Opportunity I, L.P. · CIK 0001780065 · 10% owner Atlas Venture Associates Opportunity I, LLC · CIK 0001780066 · 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: 1,092,771 F1 · kind: Shares were sold pursuant to a Rule 10b5-1 trading plan. F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $29.95 to $30.25 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder 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. F4 · ownership.nature: The shares are owned directly by Atlas Venture Opportunity Fund I, L.P. ("AVOF I"). Atlas Venture Associates Opportunity I, L.P. ("AVAO LP") is the general partner of AVOF I. Atlas Venture Associates Opportunity I, LLC ("AVAO LLC") is the general partner of AVAO LP. Each of AVAO LP and AVAO LLC disclaims Section 16 beneficial ownership of the securities held by AVOF I, except to the extent of its pecuniary interest therein, if any. Read SEC document
October 28, 2022 Filed Nov 1, 2022 23:34 UTC	Kymera Therapeutics, Inc. KYMR · Entity 3545	SaleCommon Stock	71,135	$30.00	$2,134,050.00	Disclosure SEC source: 0001209191-22-055142 · doc4.xml · nonDerivative · entry 1 Atlas Venture Fund X, L.P. · CIK 0001628098 · 10% owner ATLAS VENTURE ASSOCIATES X, L.P. · CIK 0001742766 · 10% owner Atlas Venture Associates X, LLC · CIK 0001742765 · 10% owner Atlas Venture Opportunity Fund I, L.P. · CIK 0001759241 · 10% owner Atlas Venture Associates Opportunity I, L.P. · CIK 0001780065 · 10% owner Atlas Venture Associates Opportunity I, LLC · CIK 0001780066 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 5,691,877 F1 · kind: Shares were sold pursuant to a Rule 10b5-1 trading plan. F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $29.95 to $30.25 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder 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. F3 · ownership.direct: These shares are held directly by Atlas Venture Fund X, L.P. ("Atlas Venture Fund X"). The general partner of Atlas Venture Fund X is Atlas Venture Associates X, L.P. ("AVA X LP"). Atlas Venture Associates X, LLC ("AVA X LLC") is the general partner of AVA X LP. Each of AVA X LP and AVA X LLC disclaims Section 16 beneficial ownership of the securities held by Atlas Venture Fund X, except to the extent of its pecuniary interest therein, if any. Read SEC document
September 17, 2021 Filed Sep 21, 2021 20:39 UTC	Generation Bio Co. GBIO · Entity 67174	OtherCommon Stock	100,000	$0.00	$0.00	Disclosure SEC source: 0001209191-21-057041 · doc4.xml · nonDerivative · entry 2 Atlas Venture Fund X, L.P. · CIK 0001628098 · 10% owner Atlas Venture Opportunity Fund I, L.P. · CIK 0001759241 · 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: 1,166,937 F2 · kind: Represents a pro rata distribution, and not a purchase or sale of securities, by Atlas Venture Opportunity Fund I, LP ("AVOF I") to its general partner and limited partners without additional consideration. This distribution was effected pursuant to a plan adopted by AVOF I pursuant to Rule 10b5-1 on April 20, 2021. F3 · ownership.nature: The shares are owned directly by AVOF I. Read SEC document
September 17, 2021 Filed Sep 21, 2021 20:39 UTC	Generation Bio Co. GBIO · Entity 67174	OtherCommon Stock	1,000,000	$0.00	$0.00	Disclosure SEC source: 0001209191-21-057041 · doc4.xml · nonDerivative · entry 1 Atlas Venture Fund X, L.P. · CIK 0001628098 · 10% owner Atlas Venture Opportunity Fund I, L.P. · CIK 0001759241 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 7,111,939 F1 · kind: Represents a pro rata distribution, and not a purchase or sale of securities, by Atlas Venture Fund X, L.P. ("Atlas Venture Fund X") to its general partner and limited partners without additional consideration. This distribution was effected pursuant to a plan adopted by Atlas Venture Fund X pursuant to Rule 10b5-1 on April 20, 2021. Read SEC document
June 16, 2021 Filed Jun 21, 2021 20:50 UTC	Generation Bio Co. GBIO · Entity 67174	OtherCommon Stock	100,000	$0.00	$0.00	Disclosure SEC source: 0001209191-21-042076 · doc4.xml · nonDerivative · entry 2 Atlas Venture Fund X, L.P. · CIK 0001628098 · 10% owner Atlas Venture Opportunity Fund I, L.P. · CIK 0001759241 · 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: 1,266,937 F2 · kind: Represents a pro rata distribution, and not a purchase or sale of securities, by Atlas Venture Opportunity Fund I, LP ("AVOF I") to its general partner and limited partners without additional consideration. This distribution was effected pursuant to a plan adopted by AVOF I pursuant to Rule 10b5-1 on April 20, 2021. F3 · ownership.nature: The shares are owned directly by AVOF I. Read SEC document
June 16, 2021 Filed Jun 21, 2021 20:50 UTC	Generation Bio Co. GBIO · Entity 67174	OtherCommon Stock	1,000,000	$0.00	$0.00	Disclosure SEC source: 0001209191-21-042076 · doc4.xml · nonDerivative · entry 1 Atlas Venture Fund X, L.P. · CIK 0001628098 · 10% owner Atlas Venture Opportunity Fund I, L.P. · CIK 0001759241 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 8,111,939 F1 · kind: Represents a pro rata distribution, and not a purchase or sale of securities, by Atlas Venture Fund X, L.P. ("Atlas Venture Fund X") to its general partner and limited partners without additional consideration. This distribution was effected pursuant to a plan adopted by Atlas Venture Fund X pursuant to Rule 10b5-1 on April 20, 2021. Read SEC document
May 18, 2021 Filed May 18, 2021 22:17 UTC	Kymera Therapeutics, Inc. KYMR · Entity 3545	OtherCommon Stock	1,122,619	$0.00	$0.00	Disclosure SEC source: 0001209191-21-033694 · doc4.xml · nonDerivative · entry 1 Atlas Venture Fund X, L.P. · CIK 0001628098 · 10% owner 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 5,763,012 F1 · kind: Represent a pro rata distribution, and not a purchase or sale of securities, by Atlas Venture Fund X, L.P. to its general partner and limited partners without additional consideration. This distribution was effected pursuant to a plan adopted in accordance with Rule 10b5-1 on November 17, 2020. Read SEC document
March 30, 2021 Filed Apr 1, 2021 22:16 UTC	ImageneBio, Inc. IKNA · Entity 7139	ConversionSeries B Preferred Stock · Derivative	5,362,888	Not disclosed	Not disclosed	Disclosure SEC source: 0000899243-21-014389 · doc4.xml · derivative · entry 7 Atlas Venture Fund X, L.P. · CIK 0001628098 · 10% owner ATLAS VENTURE ASSOCIATES X, L.P. · CIK 0001742766 · 10% owner Atlas Venture Associates X, LLC · CIK 0001742765 · 10% owner Atlas Venture Fund XI, L.P. · CIK 0001708269 · 10% owner Atlas Venture Associates XI, L.P. · CIK 0001780068 · 10% owner Atlas Venture Associates XI, LLC · CIK 0001780067 · 10% owner Atlas Venture Opportunity Fund I, L.P. · CIK 0001759241 · 10% owner Atlas Venture Associates Opportunity I, L.P. · CIK 0001780065 · 10% owner Atlas Venture Associates Opportunity I, LLC · CIK 0001780066 · 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: 0 Underlying: Common Stock · 749,634 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: Each share of Series A Preferred Stock, Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock (together, the "Preferred Stock") was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock converted into Common Stock on a one-for-7.154 basis upon the closing of the Issuer's initial public offering without payment or additional consideration. The Preferred Stock had no expiration date. F1 · price: Each share of Series A Preferred Stock, Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock (together, the "Preferred Stock") was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock converted into Common Stock on a one-for-7.154 basis upon the closing of the Issuer's initial public offering without payment or additional consideration. The Preferred Stock had no expiration date. F1 · derivative.exercise_date: Each share of Series A Preferred Stock, Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock (together, the "Preferred Stock") was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock converted into Common Stock on a one-for-7.154 basis upon the closing of the Issuer's initial public offering without payment or additional consideration. The Preferred Stock had no expiration date. F1 · derivative.expiration_date: Each share of Series A Preferred Stock, Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock (together, the "Preferred Stock") was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock converted into Common Stock on a one-for-7.154 basis upon the closing of the Issuer's initial public offering without payment or additional consideration. The Preferred Stock had no expiration date. F4 · ownership.nature: These shares are held directly by Atlas Venture Opportunity Fund I, L.P. ("Atlas Opportunity I"). Atlas Venture Associates Opportunity I, L.P. ("Associates I") is the general partner of Atlas Opportunity I. Atlas Venture Associates Opportunity I, LLC ("Associates I LLC") is the general partner of Associates I. Each of Associates I and Associates I LLC disclaims Section 16 beneficial ownership of the securities held by Atlas Opportunity I, except to the extent of its pecuniary interest therein, if any. Read SEC document
March 30, 2021 Filed Apr 1, 2021 22:16 UTC	ImageneBio, Inc. IKNA · Entity 7139	ConversionSeries A-2 Preferred Stock · Derivative	7,863,094	Not disclosed	Not disclosed	Disclosure SEC source: 0000899243-21-014389 · doc4.xml · derivative · entry 6 Atlas Venture Fund X, L.P. · CIK 0001628098 · 10% owner ATLAS VENTURE ASSOCIATES X, L.P. · CIK 0001742766 · 10% owner Atlas Venture Associates X, LLC · CIK 0001742765 · 10% owner Atlas Venture Fund XI, L.P. · CIK 0001708269 · 10% owner Atlas Venture Associates XI, L.P. · CIK 0001780068 · 10% owner Atlas Venture Associates XI, LLC · CIK 0001780067 · 10% owner Atlas Venture Opportunity Fund I, L.P. · CIK 0001759241 · 10% owner Atlas Venture Associates Opportunity I, L.P. · CIK 0001780065 · 10% owner Atlas Venture Associates Opportunity I, LLC · CIK 0001780066 · 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: 0 Underlying: Common Stock · 1,099,118 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: Each share of Series A Preferred Stock, Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock (together, the "Preferred Stock") was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock converted into Common Stock on a one-for-7.154 basis upon the closing of the Issuer's initial public offering without payment or additional consideration. The Preferred Stock had no expiration date. F1 · price: Each share of Series A Preferred Stock, Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock (together, the "Preferred Stock") was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock converted into Common Stock on a one-for-7.154 basis upon the closing of the Issuer's initial public offering without payment or additional consideration. The Preferred Stock had no expiration date. F1 · derivative.exercise_date: Each share of Series A Preferred Stock, Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock (together, the "Preferred Stock") was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock converted into Common Stock on a one-for-7.154 basis upon the closing of the Issuer's initial public offering without payment or additional consideration. The Preferred Stock had no expiration date. F1 · derivative.expiration_date: Each share of Series A Preferred Stock, Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock (together, the "Preferred Stock") was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock converted into Common Stock on a one-for-7.154 basis upon the closing of the Issuer's initial public offering without payment or additional consideration. The Preferred Stock had no expiration date. F3 · ownership.nature: These shares are held directly by Atlas Venture Fund XI, L.P. ("Atlas XI"). Atlas Venture Associates XI, L.P. ("Associates XI") is the general partner of Atlas XI. Atlas Venture Associates XI, LLC ("Associates XI LLC") is the general partner of Associates XI. Each of Associates XI and Associates XI LLC disclaims Section 16 beneficial ownership of the securities held by Atlas XI, except to the extent of its pecuniary interest therein, if any. Read SEC document
March 30, 2021 Filed Apr 1, 2021 22:16 UTC	ImageneBio, Inc. IKNA · Entity 7139	ConversionSeries A-1 Preferred Stock · Derivative	11,258,117	Not disclosed	Not disclosed	Disclosure SEC source: 0000899243-21-014389 · doc4.xml · derivative · entry 5 Atlas Venture Fund X, L.P. · CIK 0001628098 · 10% owner ATLAS VENTURE ASSOCIATES X, L.P. · CIK 0001742766 · 10% owner Atlas Venture Associates X, LLC · CIK 0001742765 · 10% owner Atlas Venture Fund XI, L.P. · CIK 0001708269 · 10% owner Atlas Venture Associates XI, L.P. · CIK 0001780068 · 10% owner Atlas Venture Associates XI, LLC · CIK 0001780067 · 10% owner Atlas Venture Opportunity Fund I, L.P. · CIK 0001759241 · 10% owner Atlas Venture Associates Opportunity I, L.P. · CIK 0001780065 · 10% owner Atlas Venture Associates Opportunity I, LLC · CIK 0001780066 · 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: 0 Underlying: Common Stock · 1,573,682 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: Each share of Series A Preferred Stock, Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock (together, the "Preferred Stock") was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock converted into Common Stock on a one-for-7.154 basis upon the closing of the Issuer's initial public offering without payment or additional consideration. The Preferred Stock had no expiration date. F1 · price: Each share of Series A Preferred Stock, Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock (together, the "Preferred Stock") was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock converted into Common Stock on a one-for-7.154 basis upon the closing of the Issuer's initial public offering without payment or additional consideration. The Preferred Stock had no expiration date. F1 · derivative.exercise_date: Each share of Series A Preferred Stock, Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock (together, the "Preferred Stock") was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock converted into Common Stock on a one-for-7.154 basis upon the closing of the Issuer's initial public offering without payment or additional consideration. The Preferred Stock had no expiration date. F1 · derivative.expiration_date: Each share of Series A Preferred Stock, Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock (together, the "Preferred Stock") was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock converted into Common Stock on a one-for-7.154 basis upon the closing of the Issuer's initial public offering without payment or additional consideration. The Preferred Stock had no expiration date. F2 · ownership.nature: These shares are held directly by Atlas Venture Fund X, L.P. ("Atlas X"). Atlas Venture Associates X, L.P. ("Associates X") is the general partner of Atlas X. Atlas Venture Associates X, LLC ("Associates X LLC") is the general partner of Associates X. Each of Associates X and Associates X LLC disclaims Section 16 beneficial ownership of the securities held by Atlas X, except to the extent of its pecuniary interest therein, if any. Read SEC document
March 30, 2021 Filed Apr 1, 2021 22:16 UTC	ImageneBio, Inc. IKNA · Entity 7139	ConversionSeries A Preferred Stock · Derivative	9,499,999	Not disclosed	Not disclosed	Disclosure SEC source: 0000899243-21-014389 · doc4.xml · derivative · entry 4 Atlas Venture Fund X, L.P. · CIK 0001628098 · 10% owner ATLAS VENTURE ASSOCIATES X, L.P. · CIK 0001742766 · 10% owner Atlas Venture Associates X, LLC · CIK 0001742765 · 10% owner Atlas Venture Fund XI, L.P. · CIK 0001708269 · 10% owner Atlas Venture Associates XI, L.P. · CIK 0001780068 · 10% owner Atlas Venture Associates XI, LLC · CIK 0001780067 · 10% owner Atlas Venture Opportunity Fund I, L.P. · CIK 0001759241 · 10% owner Atlas Venture Associates Opportunity I, L.P. · CIK 0001780065 · 10% owner Atlas Venture Associates Opportunity I, LLC · CIK 0001780066 · 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: 0 Underlying: Common Stock · 1,327,927 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: Each share of Series A Preferred Stock, Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock (together, the "Preferred Stock") was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock converted into Common Stock on a one-for-7.154 basis upon the closing of the Issuer's initial public offering without payment or additional consideration. The Preferred Stock had no expiration date. F1 · price: Each share of Series A Preferred Stock, Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock (together, the "Preferred Stock") was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock converted into Common Stock on a one-for-7.154 basis upon the closing of the Issuer's initial public offering without payment or additional consideration. The Preferred Stock had no expiration date. F1 · derivative.exercise_date: Each share of Series A Preferred Stock, Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock (together, the "Preferred Stock") was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock converted into Common Stock on a one-for-7.154 basis upon the closing of the Issuer's initial public offering without payment or additional consideration. The Preferred Stock had no expiration date. F1 · derivative.expiration_date: Each share of Series A Preferred Stock, Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock (together, the "Preferred Stock") was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock converted into Common Stock on a one-for-7.154 basis upon the closing of the Issuer's initial public offering without payment or additional consideration. The Preferred Stock had no expiration date. F2 · ownership.nature: These shares are held directly by Atlas Venture Fund X, L.P. ("Atlas X"). Atlas Venture Associates X, L.P. ("Associates X") is the general partner of Atlas X. Atlas Venture Associates X, LLC ("Associates X LLC") is the general partner of Associates X. Each of Associates X and Associates X LLC disclaims Section 16 beneficial ownership of the securities held by Atlas X, except to the extent of its pecuniary interest therein, if any. Read SEC document
March 30, 2021 Filed Apr 1, 2021 22:16 UTC	ImageneBio, Inc. IKNA · Entity 7139	ConversionCommon Stock	749,634	Not disclosed	Not disclosed	Disclosure SEC source: 0000899243-21-014389 · doc4.xml · nonDerivative · entry 3 Atlas Venture Fund X, L.P. · CIK 0001628098 · 10% owner ATLAS VENTURE ASSOCIATES X, L.P. · CIK 0001742766 · 10% owner Atlas Venture Associates X, LLC · CIK 0001742765 · 10% owner Atlas Venture Fund XI, L.P. · CIK 0001708269 · 10% owner Atlas Venture Associates XI, L.P. · CIK 0001780068 · 10% owner Atlas Venture Associates XI, LLC · CIK 0001780067 · 10% owner Atlas Venture Opportunity Fund I, L.P. · CIK 0001759241 · 10% owner Atlas Venture Associates Opportunity I, L.P. · CIK 0001780065 · 10% owner Atlas Venture Associates Opportunity I, LLC · CIK 0001780066 · 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: 749,634 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: Each share of Series A Preferred Stock, Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock (together, the "Preferred Stock") was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock converted into Common Stock on a one-for-7.154 basis upon the closing of the Issuer's initial public offering without payment or additional consideration. The Preferred Stock had no expiration date. F4 · ownership.nature: These shares are held directly by Atlas Venture Opportunity Fund I, L.P. ("Atlas Opportunity I"). Atlas Venture Associates Opportunity I, L.P. ("Associates I") is the general partner of Atlas Opportunity I. Atlas Venture Associates Opportunity I, LLC ("Associates I LLC") is the general partner of Associates I. Each of Associates I and Associates I LLC disclaims Section 16 beneficial ownership of the securities held by Atlas Opportunity I, except to the extent of its pecuniary interest therein, if any. Read SEC document
March 30, 2021 Filed Apr 1, 2021 22:16 UTC	ImageneBio, Inc. IKNA · Entity 7139	ConversionCommon Stock	1,099,118	Not disclosed	Not disclosed	Disclosure SEC source: 0000899243-21-014389 · doc4.xml · nonDerivative · entry 2 Atlas Venture Fund X, L.P. · CIK 0001628098 · 10% owner ATLAS VENTURE ASSOCIATES X, L.P. · CIK 0001742766 · 10% owner Atlas Venture Associates X, LLC · CIK 0001742765 · 10% owner Atlas Venture Fund XI, L.P. · CIK 0001708269 · 10% owner Atlas Venture Associates XI, L.P. · CIK 0001780068 · 10% owner Atlas Venture Associates XI, LLC · CIK 0001780067 · 10% owner Atlas Venture Opportunity Fund I, L.P. · CIK 0001759241 · 10% owner Atlas Venture Associates Opportunity I, L.P. · CIK 0001780065 · 10% owner Atlas Venture Associates Opportunity I, LLC · CIK 0001780066 · 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: 1,268,213 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: Each share of Series A Preferred Stock, Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock (together, the "Preferred Stock") was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock converted into Common Stock on a one-for-7.154 basis upon the closing of the Issuer's initial public offering without payment or additional consideration. The Preferred Stock had no expiration date. F3 · ownership.nature: These shares are held directly by Atlas Venture Fund XI, L.P. ("Atlas XI"). Atlas Venture Associates XI, L.P. ("Associates XI") is the general partner of Atlas XI. Atlas Venture Associates XI, LLC ("Associates XI LLC") is the general partner of Associates XI. Each of Associates XI and Associates XI LLC disclaims Section 16 beneficial ownership of the securities held by Atlas XI, except to the extent of its pecuniary interest therein, if any. Read SEC document
March 30, 2021 Filed Apr 1, 2021 22:16 UTC	ImageneBio, Inc. IKNA · Entity 7139	ConversionCommon Stock	2,901,609	Not disclosed	Not disclosed	Disclosure SEC source: 0000899243-21-014389 · doc4.xml · nonDerivative · entry 1 Atlas Venture Fund X, L.P. · CIK 0001628098 · 10% owner ATLAS VENTURE ASSOCIATES X, L.P. · CIK 0001742766 · 10% owner Atlas Venture Associates X, LLC · CIK 0001742765 · 10% owner Atlas Venture Fund XI, L.P. · CIK 0001708269 · 10% owner Atlas Venture Associates XI, L.P. · CIK 0001780068 · 10% owner Atlas Venture Associates XI, LLC · CIK 0001780067 · 10% owner Atlas Venture Opportunity Fund I, L.P. · CIK 0001759241 · 10% owner Atlas Venture Associates Opportunity I, L.P. · CIK 0001780065 · 10% owner Atlas Venture Associates Opportunity I, LLC · CIK 0001780066 · 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: 2,901,609 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: Each share of Series A Preferred Stock, Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock (together, the "Preferred Stock") was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock converted into Common Stock on a one-for-7.154 basis upon the closing of the Issuer's initial public offering without payment or additional consideration. The Preferred Stock had no expiration date. F2 · ownership.nature: These shares are held directly by Atlas Venture Fund X, L.P. ("Atlas X"). Atlas Venture Associates X, L.P. ("Associates X") is the general partner of Atlas X. Atlas Venture Associates X, LLC ("Associates X LLC") is the general partner of Associates X. Each of Associates X and Associates X LLC disclaims Section 16 beneficial ownership of the securities held by Atlas X, except to the extent of its pecuniary interest therein, if any. Read SEC document
March 16, 2021 Filed Mar 18, 2021 21:08 UTC	Generation Bio Co. GBIO · Entity 67174	OtherCommon Stock	1,000,000	$0.00	$0.00	Disclosure SEC source: 0001209191-21-021807 · doc4.xml · nonDerivative · entry 1 Atlas Venture Fund X, L.P. · CIK 0001628098 · 10% owner 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 9,111,939 F1 · kind: Represents a pro rata distribution, and not a purchase or sale of securities, by Atlas Venture Fund X, L.P. ("Atlas Venture Fund X") to its general partner and limited partners without additional consideration. This distribution was effected pursuant to a plan adopted by Atlas Venture Fund X pursuant to Rule 10b5-1 on July 7, 2020. Read SEC document
February 18, 2021 Filed Feb 22, 2021 21:58 UTC	Kymera Therapeutics, Inc. KYMR · Entity 3545	OtherCommon Stock	1,063,351	$0.00	$0.00	Disclosure SEC source: 0001209191-21-012760 · doc4.xml · nonDerivative · entry 1 Atlas Venture Fund X, L.P. · CIK 0001628098 · 10% owner 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 6,885,631 F1 · kind: Represent a pro rata distribution, and not a purchase or sale of securities, by Atlas Venture Fund X, L.P. to its general partner and limited partners without additional consideration. This distribution was effected pursuant to a plan adopted in accordance with Rule 10b5-1 on November 17, 2020. Read SEC document
February 11, 2021 Filed Feb 16, 2021 23:15 UTC	Dianthus Therapeutics, Inc. /DE/ MGTA · Entity 1813	OtherCommon Stock	968,726	$0.00	$0.00	Disclosure SEC source: 0001209191-21-010943 · doc4.xml · nonDerivative · entry 1 Atlas Venture Fund X, L.P. · CIK 0001628098 · 10% owner 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 3,148,399 F1 · kind: Represent a pro rata distribution, and not a purchase or sale of securities, by Atlas Venture Fund X, L.P. ("AVF X") to its general partner and limited partners without additional consideration. This distribution was effected pursuant to a plan adopted in accordance with Rule 10b5-1 on September 25, 2020. F2 · ownership.direct: The shares are held directly by AVF X. The general partner of AVF X is Atlas Venture Associates X, L.P. ("AVA X LP"). Atlas Venture Associates X, LLC ("AVA X LLC") is the general partner of AVA X LP. Each of AVA X LP and AVA X LLC disclaims Section 16 beneficial ownership of the securities held by AVF X, except to the extent of its pecuniary interest therein, if any. Read SEC document
December 15, 2020 Filed Dec 17, 2020 23:20 UTC	Generation Bio Co. GBIO · Entity 67174	OtherCommon Stock	1,151,882	$0.00	$0.00	Disclosure SEC source: 0001209191-20-064185 · doc4.xml · nonDerivative · entry 1 Atlas Venture Fund X, L.P. · CIK 0001628098 · 10% owner Atlas Venture Opportunity Fund I, L.P. · CIK 0001759241 · 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: 11,478,876 F1 · kind: Represents a pro rata distribution, and not a purchase or sale of securities, by each of Atlas Venture Fund X, L.P. ("Atlas Venture Fund X") and Atlas Venture Opportunity Fund I, L.P. ("Atlas Venture Opportunity Fund I") to its respective general partners and limited partners without additional consideration. These distributions were effected pursuant to plans adopted by Atlas Venture Fund X and Atlas Venture Opportunity Fund I pursuant to Rule 10b5-1 on July 7, 2020. F2 · shares: Includes 1,000,000 shares distributed by Atlas Venture Fund X and 151,882 shares by Atlas Venture Opportunity Fund I. F3 · ownership.nature: Includes 10,111,939 shares held by Atlas Venture Fund X and 1,366,937 shares held by Atlas Venture Opportunity Fund I. Read SEC document
September 15, 2020 Filed Sep 17, 2020 20:48 UTC	Replimune Group, Inc. REPL · Entity 4707	OtherCommon Stock	445,339	$0.00	$0.00	Disclosure SEC source: 0001209191-20-050942 · doc4.xml · nonDerivative · entry 1 Atlas Venture Fund X, L.P. · CIK 0001628098 · 10% owner 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 2,486,296 F1 · kind: Represent a pro rata distribution, and not a purchase or sale of securities, by Atlas Venture Fund X, L.P. to its general partner and limited partners without additional consideration. This distribution was effected pursuant to a plan adopted in accordance with Rule 10b5-1 on February 28, 2020. Read SEC document
August 25, 2020 Filed Aug 25, 2020 20:30 UTC	Kymera Therapeutics, Inc. KYMR · Entity 3545	ConversionSeries C Convertible Preferred Stock · Derivative	1,774,624	$0.00	$0.00	Disclosure SEC source: 0000899243-20-023368 · doc4.xml · derivative · entry 6 Atlas Venture Fund X, L.P. · CIK 0001628098 · 10% owner Atlas Venture Associates X, LLC · CIK 0001742765 · 10% owner ATLAS VENTURE ASSOCIATES X, L.P. · CIK 0001742766 · 10% owner Atlas Venture Associates Opportunity I, L.P. · CIK 0001780065 · 10% owner Atlas Venture Associates Opportunity I, LLC · CIK 0001780066 · 10% owner Atlas Venture Opportunity Fund I, L.P. · CIK 0001759241 · 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: 0 Underlying: Common Stock · 1,112,686 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. F2 · derivative.exercise_price: All series of preferred stock automatically converted into the Issuer's common stock on a one-for-1.5949 basis upon the closing of the Issuer's initial public offering and had no expiration date. F2 · derivative.exercise_date: All series of preferred stock automatically converted into the Issuer's common stock on a one-for-1.5949 basis upon the closing of the Issuer's initial public offering and had no expiration date. F2 · derivative.expiration_date: All series of preferred stock automatically converted into the Issuer's common stock on a one-for-1.5949 basis upon the closing of the Issuer's initial public offering and had no expiration date. F4 · ownership.nature: The shares are owned directly by Atlas Venture Opportunity Fund I, L.P. ("AVOF I"). Atlas Venture Associates Opportunity I, L.P. ("AVAO LP") is the general partner of AVOF I. Atlas Venture Associates Opportunity I, LLC ("AVAO LLC") is the general partner of AVAO LP. Dr. Booth is a member of AVAO LLC and disclaims beneficial ownership of such securities held by Atlas Venture Fund X, except to the extent of his pecuniary interest therein, if any. Read SEC document
August 25, 2020 Filed Aug 25, 2020 20:30 UTC	Kymera Therapeutics, Inc. KYMR · Entity 3545	ConversionSeries B Convertible Preferred Stock · Derivative	1,477,832	$0.00	$0.00	Disclosure SEC source: 0000899243-20-023368 · doc4.xml · derivative · entry 5 Atlas Venture Fund X, L.P. · CIK 0001628098 · 10% owner Atlas Venture Associates X, LLC · CIK 0001742765 · 10% owner ATLAS VENTURE ASSOCIATES X, L.P. · CIK 0001742766 · 10% owner Atlas Venture Associates Opportunity I, L.P. · CIK 0001780065 · 10% owner Atlas Venture Associates Opportunity I, LLC · CIK 0001780066 · 10% owner Atlas Venture Opportunity Fund I, L.P. · CIK 0001759241 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 926,599 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. F2 · derivative.exercise_price: All series of preferred stock automatically converted into the Issuer's common stock on a one-for-1.5949 basis upon the closing of the Issuer's initial public offering and had no expiration date. F2 · derivative.exercise_date: All series of preferred stock automatically converted into the Issuer's common stock on a one-for-1.5949 basis upon the closing of the Issuer's initial public offering and had no expiration date. F2 · derivative.expiration_date: All series of preferred stock automatically converted into the Issuer's common stock on a one-for-1.5949 basis upon the closing of the Issuer's initial public offering and had no expiration date. F3 · ownership.direct: These shares are held directly by Atlas Venture Fund X, L.P. ("Atlas Venture Fund X"). The general partner of Atlas Venture Fund X is Atlas Venture Associates X, L.P. ("AVA X LP"). Atlas Venture Associates X, LLC ("AVA X LLC") is the general partner of AVA X LP. Dr. Booth is a member of AVA X LLC and disclaims beneficial ownership of such securities held by Atlas Venture Fund X, except to the extent of his pecuniary interest therein, if any. Read SEC document
August 25, 2020 Filed Aug 25, 2020 20:30 UTC	Kymera Therapeutics, Inc. KYMR · Entity 3545	ConversionSeries A Convertible Preferred Stock · Derivative	7,000,000	$0.00	$0.00	Disclosure SEC source: 0000899243-20-023368 · doc4.xml · derivative · entry 4 Atlas Venture Fund X, L.P. · CIK 0001628098 · 10% owner Atlas Venture Associates X, LLC · CIK 0001742765 · 10% owner ATLAS VENTURE ASSOCIATES X, L.P. · CIK 0001742766 · 10% owner Atlas Venture Associates Opportunity I, L.P. · CIK 0001780065 · 10% owner Atlas Venture Associates Opportunity I, LLC · CIK 0001780066 · 10% owner Atlas Venture Opportunity Fund I, L.P. · CIK 0001759241 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 4,388,990 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. F2 · derivative.exercise_price: All series of preferred stock automatically converted into the Issuer's common stock on a one-for-1.5949 basis upon the closing of the Issuer's initial public offering and had no expiration date. F2 · derivative.exercise_date: All series of preferred stock automatically converted into the Issuer's common stock on a one-for-1.5949 basis upon the closing of the Issuer's initial public offering and had no expiration date. F2 · derivative.expiration_date: All series of preferred stock automatically converted into the Issuer's common stock on a one-for-1.5949 basis upon the closing of the Issuer's initial public offering and had no expiration date. F3 · ownership.direct: These shares are held directly by Atlas Venture Fund X, L.P. ("Atlas Venture Fund X"). The general partner of Atlas Venture Fund X is Atlas Venture Associates X, L.P. ("AVA X LP"). Atlas Venture Associates X, LLC ("AVA X LLC") is the general partner of AVA X LP. Dr. Booth is a member of AVA X LLC and disclaims beneficial ownership of such securities held by Atlas Venture Fund X, except to the extent of his pecuniary interest therein, if any. 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.