organization · Reporting owner

MPM BioVentures 2014 LLC

Disclosed activity across 7 companies

Tapewire entity: 2485
SEC CIK: 0001765021

Reported relationships

Latest disclosed role at each company.

Company	Last reported as	Report date	Published
Oncorus, Inc.ONCR · Entity 112213	10% owner	October 06, 2020	October 08, 2020

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.

Oncorus, Inc.

Report date October 06, 2020 · Filed October 08, 2020

Jointly reported with MPM BioVentures 2014, L.P., Foley Todd, MPM BioVentures 2014 (B), L.P., MPM Asset Management Investors BV2014 LLC, MPM BioVentures 2014 GP LLC, MPM ASSET MANAGEMENT LLC

Security / award	Ownership account	Disclosed shares / units	Disclosure context
Common StockSEC Table I · non-derivative	IndirectSee footnote	1,899,702	Reported balance After 2020-10-06 transaction · row 1 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 1 · 2020-10-06 · Conversion · Acquired 1,783,879 · Balance 1,899,702 F1: Each share of Series A-1 Preferred and Series B Preferred Stock automatically converted into shares of Common Stock upon the closing of the Issuer's initial public offering for no additional consideration, on a one-for-one basis, and had no expiration date. F2: Each Reporting Person disclaims beneficial ownership of the securities except to the extent of his or its pecuniary interest therein. F3: The shares are held as follows: 1,382,943 by MPM BioVentures 2014, L.P. ("BV 2014"), 92,239 by MPM BioVentures 2014(B), L.P. ("BV 2014(B)"), 50,164 by MPM Asset Management Investors BV2014 LLC ("AM BV2014"), 224,924 by MPM Sunstates Fund, L.P. ("MPM SunStates"), 33,609 by MPM Asset Management Investors Sunstates Fund LLC ("AM SunStates") and 115,823 by MPM Asset Management LLC ("AM LLC"). MPM BioVentures 2014 GP LLC and MPM BioVentures 2014 LLC ("BV LLC") are the direct and indirect general partners of BV 2014 and BV 2014(B). BV LLC is the manager of AM BV2014. MPM SunStates Fund GP LLC and MPM SunStates GP Managing Member LLC ("SunStates GP") are the direct and indirect general partners of MPM SunStates. SunStates GP is the manager of AM SunStates. Luke Evnin, Ansbert Gadicke and Todd Foley are the managing directors of BV LLC, Luke Evnin and Anbsert Gadicke are the members of AM LLC and Ansbert Gadicke is a member of SunStates GP.
Common StockSEC Table I · non-derivative	IndirectSee footnote	2,675,677	Reported balance After 2020-10-06 transaction · row 2 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 2 · 2020-10-06 · Conversion · Acquired 775,975 · Balance 2,675,677 F1: Each share of Series A-1 Preferred and Series B Preferred Stock automatically converted into shares of Common Stock upon the closing of the Issuer's initial public offering for no additional consideration, on a one-for-one basis, and had no expiration date. F2: Each Reporting Person disclaims beneficial ownership of the securities except to the extent of his or its pecuniary interest therein. F4: The shares are held as follows: 2,018,001 by BV 2014, 134,595 by BV 2014(B), 73,199 by AM BV2014, 290,632 by MPM SunStates, 43,427 by AM SunStates and 115,823 by AM LLC.
Common StockSEC Table I · non-derivative	IndirectSee footnote	2,849,453	Reported balance After 2020-10-06 transaction · row 3 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 3 · 2020-10-06 · Purchase · Acquired 173,776 · Balance 2,849,453 F2: Each Reporting Person disclaims beneficial ownership of the securities except to the extent of his or its pecuniary interest therein. F5: The shares are held as follows: 2,155,108 by BV 2014, 143,740 by BV 2014(B), 78,172 by AM BV2014, 310,251 by MPM SunStates, 46,359 by AM SunStates and 115,823 by AM LLC.
Series A-1 Preferred StockSEC Table II · derivative / convertible security	IndirectSee footnote	0	Reported balance After 2020-10-06 transaction · row 4 Instrument identity requires review; Table II rows are not merged. 1 source row Row 4 · 2020-10-06 · Conversion · Disposed 1,783,879 · Balance 0 F1: Each share of Series A-1 Preferred and Series B Preferred Stock automatically converted into shares of Common Stock upon the closing of the Issuer's initial public offering for no additional consideration, on a one-for-one basis, and had no expiration date. F2: Each Reporting Person disclaims beneficial ownership of the securities except to the extent of his or its pecuniary interest therein. F6: The shares are held as follows: 1,382,943 by BV 2014, 92,239 by BV 2014(B), 50,164 by AM BV2014, 224,924 by MPM SunStates and 33,609 by AM SunStates.
Series B Preferred StockSEC Table II · derivative / convertible security	IndirectSee footnote	0	Reported balance After 2020-10-06 transaction · row 5 Instrument identity requires review; Table II rows are not merged. 1 source row Row 5 · 2020-10-06 · Conversion · Disposed 775,975 · Balance 0 F1: Each share of Series A-1 Preferred and Series B Preferred Stock automatically converted into shares of Common Stock upon the closing of the Issuer's initial public offering for no additional consideration, on a one-for-one basis, and had no expiration date. F2: Each Reporting Person disclaims beneficial ownership of the securities except to the extent of his or its pecuniary interest therein. F7: The shares are held as follows: 635,058 by BV 2014, 42,356 by BV 2014(B), 23,035 by AM BV2014, 65,708 by MPM SunStates and 9,818 by AM SunStates.

Filing footnotes · ownership attribution and instrument terms

F1: Each share of Series A-1 Preferred and Series B Preferred Stock automatically converted into shares of Common Stock upon the closing of the Issuer's initial public offering for no additional consideration, on a one-for-one basis, and had no expiration date.

F2: Each Reporting Person disclaims beneficial ownership of the securities except to the extent of his or its pecuniary interest therein.

F3: The shares are held as follows: 1,382,943 by MPM BioVentures 2014, L.P. ("BV 2014"), 92,239 by MPM BioVentures 2014(B), L.P. ("BV 2014(B)"), 50,164 by MPM Asset Management Investors BV2014 LLC ("AM BV2014"), 224,924 by MPM Sunstates Fund, L.P. ("MPM SunStates"), 33,609 by MPM Asset Management Investors Sunstates Fund LLC ("AM SunStates") and 115,823 by MPM Asset Management LLC ("AM LLC"). MPM BioVentures 2014 GP LLC and MPM BioVentures 2014 LLC ("BV LLC") are the direct and indirect general partners of BV 2014 and BV 2014(B). BV LLC is the manager of AM BV2014. MPM SunStates Fund GP LLC and MPM SunStates GP Managing Member LLC ("SunStates GP") are the direct and indirect general partners of MPM SunStates. SunStates GP is the manager of AM SunStates. Luke Evnin, Ansbert Gadicke and Todd Foley are the managing directors of BV LLC, Luke Evnin and Anbsert Gadicke are the members of AM LLC and Ansbert Gadicke is a member of SunStates GP.

F4: The shares are held as follows: 2,018,001 by BV 2014, 134,595 by BV 2014(B), 73,199 by AM BV2014, 290,632 by MPM SunStates, 43,427 by AM SunStates and 115,823 by AM LLC.

F5: The shares are held as follows: 2,155,108 by BV 2014, 143,740 by BV 2014(B), 78,172 by AM BV2014, 310,251 by MPM SunStates, 46,359 by AM SunStates and 115,823 by AM LLC.

F6: The shares are held as follows: 1,382,943 by BV 2014, 92,239 by BV 2014(B), 50,164 by AM BV2014, 224,924 by MPM SunStates and 33,609 by AM SunStates.

F7: The shares are held as follows: 635,058 by BV 2014, 42,356 by BV 2014(B), 23,035 by AM BV2014, 65,708 by MPM SunStates and 9,818 by AM SunStates.

Past disclosures · reporting ended (6)

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

Entrada Therapeutics, Inc.

Report date September 04, 2026 · Filed September 09, 2026

Jointly reported with MPM BioVentures 2014, L.P., EVNIN LUKE, GADICKE ANSBERT, Foley Todd, MPM BioVentures 2014 (B), L.P., MPM Asset Management Investors BV2014 LLC, MPM BioVentures 2014 GP LLC, MPM BIOVENTURES 2018 (B), L.P., MPM ASSET MANAGEMENT INVESTORS BV2018 LLC

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

Security / award	Ownership account	Disclosed shares / units	Disclosure context
Common StockSEC Table I · non-derivative	IndirectSee Footnote	4,106,452	Reported balance After 2026-09-04 transaction · row 1 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 1 · 2026-09-04 · Sale · Disposed 38,500 · Balance 4,106,452 F1: The shares were sold as follows: 17,482 by MPM BioVentures 2014, L.P. ("BV 2014"), 1,166 by MPM BioVentures 2014(B), L.P. ("BV 2014(B)"), 602 by MPM Asset Management Investors BV2014 LLC ("AM BV2014"), 17,942 by MPM BioVentures 2018, L.P. ("BV 2018"), 954 by MPM BioVentures 2018 (B), L.P. ("BV 2018(B)") and 354 by MPM Asset Management Investors BV2018 LLC ("AM BV2018"). MPM BioVentures 2014 GP LLC and MPM BioVentures 2014 LLC ("BV2014 LLC") are the direct and indirect general partners of BV 2014 and BV 2014(B). BV2014 LLC is the manager of AM BV2014. MPM BioVentures 2018 GP LLC and MPM BioVentures 2018 LLC ("BV2018 LLC") are the direct and indirect general partners of BV 2018 and BV 2018(B). BV 2018 LLC is the manager of AM BV2018. Messrs. Evnin, Foley and Gadicke are managing directors of BV 2014 LLC and BV 2018 LLC. F2: Price represents the weighted average sale price of the shares sold. The sale price ranged from $7.01 to $7.16 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4. F3: The shares are held as follows: 1,864,673 by BV 2014, 124,370 by BV 2014(B), 64,182 by AM BV2014, 1,913,743 by BV 2018, 101,714 by BV 2018(B) and 37,770 by AM BV2018. F4: Each Reporting Person disclaims beneficial ownership of the securities except to the extent of his or its respective pecuniary interest therein.
Common StockSEC Table I · non-derivative	IndirectSee Footnote	3,913,952	Reported balance After 2026-09-08 transaction · row 2 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 2 · 2026-09-08 · Sale · Disposed 192,500 · Balance 3,913,952 F5: The shares were sold as follows: 87,411 by BV 2014, 5,830 by BV 2014(B), 3,009 by AM BV2014, 89,712 by BV 2018, 4,768 by BV 2018(B) and 1,770 by AM BV2018. F6: Price represents the weighted average sale price of the shares sold. The sale price ranged from $6.97 to $7.70 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4. F4: Each Reporting Person disclaims beneficial ownership of the securities except to the extent of his or its respective pecuniary interest therein. F7: The shares are held as follows: 1,777,262 by BV 2014, 118,540 by BV 2014(B), 61,173 by AM BV2014, 1,824,031 by BV 2018, 96,946 by BV 2018(B) and 36,000 by AM BV2018.
Common StockSEC Table I · non-derivative	IndirectSee Footnote	3,885,115	Reported balance After 2026-09-09 transaction · row 3 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 3 · 2026-09-09 · Sale · Disposed 28,837 · Balance 3,885,115 F8: The shares were sold as follows: 13,095 by BV 2014, 873 by BV 2014(B), 451 by AM BV2014, 13,439 by BV 2018, 714 by BV 2018(B) and 265 by AM BV2018. F9: Price represents the weighted average sale price of the shares sold. The sale price ranged from $7.02 to $7.54 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4. F4: Each Reporting Person disclaims beneficial ownership of the securities except to the extent of his or its respective pecuniary interest therein. F10: The shares are held as follows: 1,764,167 by BV 2014, 117,667 by BV 2014(B), 60,722 by AM BV2014, 1,810,592 by BV 2018, 96,232 by BV 2018(B) and 35,735 by AM BV2018.

Filing footnotes · ownership attribution and instrument terms

F1: The shares were sold as follows: 17,482 by MPM BioVentures 2014, L.P. ("BV 2014"), 1,166 by MPM BioVentures 2014(B), L.P. ("BV 2014(B)"), 602 by MPM Asset Management Investors BV2014 LLC ("AM BV2014"), 17,942 by MPM BioVentures 2018, L.P. ("BV 2018"), 954 by MPM BioVentures 2018 (B), L.P. ("BV 2018(B)") and 354 by MPM Asset Management Investors BV2018 LLC ("AM BV2018"). MPM BioVentures 2014 GP LLC and MPM BioVentures 2014 LLC ("BV2014 LLC") are the direct and indirect general partners of BV 2014 and BV 2014(B). BV2014 LLC is the manager of AM BV2014. MPM BioVentures 2018 GP LLC and MPM BioVentures 2018 LLC ("BV2018 LLC") are the direct and indirect general partners of BV 2018 and BV 2018(B). BV 2018 LLC is the manager of AM BV2018. Messrs. Evnin, Foley and Gadicke are managing directors of BV 2014 LLC and BV 2018 LLC.

F2: Price represents the weighted average sale price of the shares sold. The sale price ranged from $7.01 to $7.16 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4.

F3: The shares are held as follows: 1,864,673 by BV 2014, 124,370 by BV 2014(B), 64,182 by AM BV2014, 1,913,743 by BV 2018, 101,714 by BV 2018(B) and 37,770 by AM BV2018.

F4: Each Reporting Person disclaims beneficial ownership of the securities except to the extent of his or its respective pecuniary interest therein.

F5: The shares were sold as follows: 87,411 by BV 2014, 5,830 by BV 2014(B), 3,009 by AM BV2014, 89,712 by BV 2018, 4,768 by BV 2018(B) and 1,770 by AM BV2018.

F6: Price represents the weighted average sale price of the shares sold. The sale price ranged from $6.97 to $7.70 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4.

F7: The shares are held as follows: 1,777,262 by BV 2014, 118,540 by BV 2014(B), 61,173 by AM BV2014, 1,824,031 by BV 2018, 96,946 by BV 2018(B) and 36,000 by AM BV2018.

F8: The shares were sold as follows: 13,095 by BV 2014, 873 by BV 2014(B), 451 by AM BV2014, 13,439 by BV 2018, 714 by BV 2018(B) and 265 by AM BV2018.

F9: Price represents the weighted average sale price of the shares sold. The sale price ranged from $7.02 to $7.54 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4.

F10: The shares are held as follows: 1,764,167 by BV 2014, 117,667 by BV 2014(B), 60,722 by AM BV2014, 1,810,592 by BV 2018, 96,232 by BV 2018(B) and 35,735 by AM BV2018.

Harpoon Therapeutics, Inc.

Report date April 15, 2021 · Filed April 16, 2021

Jointly reported with MPM BioVentures 2014, L.P., MPM ASSET MANAGEMENT LLC, MPM BioVentures 2014 (B), L.P., MPM Asset Management Investors BV2014 LLC, MPM BioVentures 2014 GP LLC, Foley Todd, EVNIN LUKE

Section 16 reporting ended · disclosed 2021-04-16. Current position is not established by this disclosure.

Security / award	Ownership account	Disclosed shares / units	Disclosure context
Common StockSEC Table I · non-derivative	IndirectSee Footnote	3,223,853	Reported balance After 2021-04-13 transaction · row 1 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 1 · 2021-04-13 · Sale · Disposed 1,657 · Balance 3,223,853 F1: Transaction effected pursuant to a plan established pursuant to Rule 10b5-1 on 3/16/2021. F2: The shares were sold by MPM Asset Management LLC ("AM LLC"). F3: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $18.98 to $19.88 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: The shares are held as follows: 2,657,097 by MPM BioVentures 2014, L.P. ("BV 2014"), 152,470 by MPM BioVentures 2014(B), L.P. ("BV 2014(B)"), 96,376 by MPM Asset Management Investors BV2014 LLC ("AM BV2014") and 317,910 by AM LLC. MPM BioVentures 2014 GP LLC and MPM BioVentures 2014 LLC ("BV LLC") are the direct and indirect general partners of BV 2014 and BV 2014(B). BV LLC is the manager of AM BV2014. Messrs. Evnin and Foley are the members of BV LLC and Mr. Evnin is a member of AM LLC. Each Reporting Person disclaims beneficial ownership of the securities except to the extent of his or its pecuniary interest therein.
Common StockSEC Table I · non-derivative	IndirectSee Footnote	3,223,567	Reported balance After 2021-04-13 transaction · row 2 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 2 · 2021-04-13 · Sale · Disposed 286 · Balance 3,223,567 F1: Transaction effected pursuant to a plan established pursuant to Rule 10b5-1 on 3/16/2021. F2: The shares were sold by MPM Asset Management LLC ("AM LLC"). F5: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $19.89 to $20.50 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. F6: The shares are held as follows: 2,657,097 by BV 2014, 152,470 by BV 2014(B), 96,376 by AM BV2014 and 317,624 by AM LLC. Each Reporting Person disclaims beneficial ownership of the securities except to the extent of his or its pecuniary interest therein.
Common StockSEC Table I · non-derivative	IndirectSee Footnote	3,223,446	Reported balance After 2021-04-14 transaction · row 3 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 3 · 2021-04-14 · Sale · Disposed 121 · Balance 3,223,446 F1: Transaction effected pursuant to a plan established pursuant to Rule 10b5-1 on 3/16/2021. F2: The shares were sold by MPM Asset Management LLC ("AM LLC"). F7: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $19.44 to $20.39 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. F8: The shares are held as follows: 2,657,097 by BV 2014, 152,470 by BV 2014(B), 96,376 by AM BV2014 and 317,503 by AM LLC. Each Reporting Person disclaims beneficial ownership of the securities except to the extent of his or its pecuniary interest therein.
Common StockSEC Table I · non-derivative	IndirectSee Footnote	3,221,896	Reported balance After 2021-04-14 transaction · row 4 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 4 · 2021-04-14 · Sale · Disposed 1,550 · Balance 3,221,896 F1: Transaction effected pursuant to a plan established pursuant to Rule 10b5-1 on 3/16/2021. F2: The shares were sold by MPM Asset Management LLC ("AM LLC"). F9: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $20.52 to $21.18 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. F10: The shares are held as follows: 2,657,097 by BV 2014, 152,470 by BV 2014(B), 96,376 by AM BV2014 and 315,953 by AM LLC. Each Reporting Person disclaims beneficial ownership of the securities except to the extent of his or its pecuniary interest therein.
Common StockSEC Table I · non-derivative	IndirectSee Footnote	3,220,844	Reported balance After 2021-04-15 transaction · row 5 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 5 · 2021-04-15 · Sale · Disposed 1,052 · Balance 3,220,844 F1: Transaction effected pursuant to a plan established pursuant to Rule 10b5-1 on 3/16/2021. F2: The shares were sold by MPM Asset Management LLC ("AM LLC"). F11: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $20.15 to $20.99 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 range set forth in this footnote. F12: The shares are held as follows: 2,657,097 by BV 2014, 152,470 by BV 2014(B), 96,376 by AM BV2014 and 314,901 by AM LLC. Each Reporting Person disclaims beneficial ownership of the securities except to the extent of his or its pecuniary interest therein.

Filing footnotes · ownership attribution and instrument terms

F1: Transaction effected pursuant to a plan established pursuant to Rule 10b5-1 on 3/16/2021.

F2: The shares were sold by MPM Asset Management LLC ("AM LLC").

F3: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $18.98 to $19.88 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: The shares are held as follows: 2,657,097 by MPM BioVentures 2014, L.P. ("BV 2014"), 152,470 by MPM BioVentures 2014(B), L.P. ("BV 2014(B)"), 96,376 by MPM Asset Management Investors BV2014 LLC ("AM BV2014") and 317,910 by AM LLC. MPM BioVentures 2014 GP LLC and MPM BioVentures 2014 LLC ("BV LLC") are the direct and indirect general partners of BV 2014 and BV 2014(B). BV LLC is the manager of AM BV2014. Messrs. Evnin and Foley are the members of BV LLC and Mr. Evnin is a member of AM LLC. Each Reporting Person disclaims beneficial ownership of the securities except to the extent of his or its pecuniary interest therein.

F5: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $19.89 to $20.50 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.

F6: The shares are held as follows: 2,657,097 by BV 2014, 152,470 by BV 2014(B), 96,376 by AM BV2014 and 317,624 by AM LLC. Each Reporting Person disclaims beneficial ownership of the securities except to the extent of his or its pecuniary interest therein.

F7: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $19.44 to $20.39 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.

F8: The shares are held as follows: 2,657,097 by BV 2014, 152,470 by BV 2014(B), 96,376 by AM BV2014 and 317,503 by AM LLC. Each Reporting Person disclaims beneficial ownership of the securities except to the extent of his or its pecuniary interest therein.

F9: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $20.52 to $21.18 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.

F10: The shares are held as follows: 2,657,097 by BV 2014, 152,470 by BV 2014(B), 96,376 by AM BV2014 and 315,953 by AM LLC. Each Reporting Person disclaims beneficial ownership of the securities except to the extent of his or its pecuniary interest therein.

F11: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $20.15 to $20.99 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 range set forth in this footnote.

F12: The shares are held as follows: 2,657,097 by BV 2014, 152,470 by BV 2014(B), 96,376 by AM BV2014 and 314,901 by AM LLC. Each Reporting Person disclaims beneficial ownership of the securities except to the extent of his or its pecuniary interest therein.

Repare Therapeutics Inc.

Report date June 23, 2020 · Filed June 25, 2020

Jointly reported with MPM BioVentures 2014, L.P., MPM Asset Management Investors BV2014 LLC, MPM BioVentures 2014 (B), L.P., MPM BioVentures 2014 GP LLC, EVNIN LUKE

Section 16 reporting ended · disclosed 2020-06-25. Current position is not established by this disclosure.

Security / award	Ownership account	Disclosed shares / units	Disclosure context
Common SharesSEC Table I · non-derivative	IndirectSee Footnote	1,801,581	Reported balance After 2020-06-23 transaction · row 1 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 1 · 2020-06-23 · Conversion · Acquired 1,801,581 · Balance 1,801,581 F1: All series of convertible preferred shares converted into the number of shares of the Issuer's common shares on a 1-for-1 basis, for no additional consideration, immediately prior to the closing of the Issuer's initial public offering and had no expiration date. F2: The shares are held as follows: 1,636,136 by MPM BioVentures 2014, L.P. ("BV 2014"), 109,128 by MPM BioVentures 2014(B), L.P. ("BV 2014(B)") and 56,317 by MPM Asset Management Investors BV2014 LLC ("AM BV2014"). MPM BioVentures 2014 GP LLC and MPM BioVentures 2014 LLC ("BV LLC") are the direct and indirect general partners of BV 2014 and BV 2014(B). Luke Evnin, Ansbert Gadicke and Todd Foley are the managing directors of BV LLC and members of AM BV2014. F3: The Reporting Persons disclaim beneficial ownership of the securities except to the extent of his or its respective pecuniary interest therein.
Common SharesSEC Table I · non-derivative	IndirectSee Footnote	2,753,772	Reported balance After 2020-06-23 transaction · row 2 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 2 · 2020-06-23 · Conversion · Acquired 952,191 · Balance 2,753,772 F1: All series of convertible preferred shares converted into the number of shares of the Issuer's common shares on a 1-for-1 basis, for no additional consideration, immediately prior to the closing of the Issuer's initial public offering and had no expiration date. F3: The Reporting Persons disclaim beneficial ownership of the securities except to the extent of his or its respective pecuniary interest therein. F4: The shares are held as follows: 2,500,885 by BV 2014, 166,805 by BV 2014(B) and 86,082 by AM BV2014.
Common SharesSEC Table I · non-derivative	IndirectSee Footnote	3,003,772	Reported balance After 2020-06-23 transaction · row 3 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 3 · 2020-06-23 · Purchase · Acquired 250,000 · Balance 3,003,772 F5: The shares were purchased as follows: 227,042 by BV 2014, 15,143 by BV 2014(B) and 7,815 by AM BV2014. F3: The Reporting Persons disclaim beneficial ownership of the securities except to the extent of his or its respective pecuniary interest therein. F6: The shares are held as follows: 2,727,927 by BV 2014, 181,948 by BV 2014(B) and 93,897 by AM BV2014.
Class A Preferred SharesSEC Table II · derivative / convertible security	IndirectSee Footnote	0	Reported balance After 2020-06-23 transaction · row 4 Instrument identity requires review; Table II rows are not merged. 1 source row Row 4 · 2020-06-23 · Conversion · Disposed 1,801,581 · Balance 0 F1: All series of convertible preferred shares converted into the number of shares of the Issuer's common shares on a 1-for-1 basis, for no additional consideration, immediately prior to the closing of the Issuer's initial public offering and had no expiration date. F7: No securities held by the Reporting Persons.
Class B Preferred SharesSEC Table II · derivative / convertible security	IndirectSee Footnote	0	Reported balance After 2020-06-23 transaction · row 5 Instrument identity requires review; Table II rows are not merged. 1 source row Row 5 · 2020-06-23 · Conversion · Disposed 952,191 · Balance 0 F1: All series of convertible preferred shares converted into the number of shares of the Issuer's common shares on a 1-for-1 basis, for no additional consideration, immediately prior to the closing of the Issuer's initial public offering and had no expiration date. F7: No securities held by the Reporting Persons.

Filing footnotes · ownership attribution and instrument terms

F1: All series of convertible preferred shares converted into the number of shares of the Issuer's common shares on a 1-for-1 basis, for no additional consideration, immediately prior to the closing of the Issuer's initial public offering and had no expiration date.

F2: The shares are held as follows: 1,636,136 by MPM BioVentures 2014, L.P. ("BV 2014"), 109,128 by MPM BioVentures 2014(B), L.P. ("BV 2014(B)") and 56,317 by MPM Asset Management Investors BV2014 LLC ("AM BV2014"). MPM BioVentures 2014 GP LLC and MPM BioVentures 2014 LLC ("BV LLC") are the direct and indirect general partners of BV 2014 and BV 2014(B). Luke Evnin, Ansbert Gadicke and Todd Foley are the managing directors of BV LLC and members of AM BV2014.

F3: The Reporting Persons disclaim beneficial ownership of the securities except to the extent of his or its respective pecuniary interest therein.

F4: The shares are held as follows: 2,500,885 by BV 2014, 166,805 by BV 2014(B) and 86,082 by AM BV2014.

F5: The shares were purchased as follows: 227,042 by BV 2014, 15,143 by BV 2014(B) and 7,815 by AM BV2014.

F6: The shares are held as follows: 2,727,927 by BV 2014, 181,948 by BV 2014(B) and 93,897 by AM BV2014.

F7: No securities held by the Reporting Persons.

TCR2 THERAPEUTICS INC.

Report date June 01, 2023 · Filed June 05, 2023

Jointly reported with MPM BioVentures 2014, L.P., Foley Todd, EVNIN LUKE, MPM BioVentures 2014 (B), L.P., MPM Asset Management Investors BV2014 LLC, MPM BioVentures 2014 GP LLC, MPM ASSET MANAGEMENT LLC

Section 16 reporting ended · disclosed 2023-06-05. Current position is not established by this disclosure.

Security / award	Ownership account	Disclosed shares / units	Disclosure context
Common StockSEC Table I · non-derivative	IndirectSee Footnote	0	Reported balance After 2023-06-01 transaction · row 1 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 1 · 2023-06-01 · Other · Disposed 4,158,964 · Balance 0 F1: This Form 4 reports securities disposed of pursuant to the terms of the Agreement and Plan of Merger, dated as of March 5, 2023, by and among TCR2 Therapeutics Inc. (the "Company"), Adaptimmune Therapeutics plc ("Parent") and CM Merger Sub, Inc., an indirect wholly-owned subsidiary of Parent ("Merger Sub"), as amended by that certain Amendment No. 1 to the Agreement and Plan of Merger, dated April 5, 2023, by and among the Company, Parent and Merger Sub (the "Merger Agreement"), pursuant to which Merger Sub merged with and into the Company (the "Merger") with the Company surviving the Merger as an indirect wholly-owned subsidiary of Parent effective as of June 1, 2023 (the "Effective Time"). F2: At the Effective Time, each issued and outstanding share of common stock of the Company (each, a "Share") (excluding any Shares held in treasury of the Company or owned, directly or indirectly, by Parent or Merger Sub immediately prior to the Effective Time) was cancelled and converted into the right to receive 1.5117 (the "Exchange Ratio") American Depositary Shares of Parent ("Parent ADS") representing six ordinary shares of Parent ("Parent Ordinary Shares"). F3: The Reporting Persons disclaim beneficial ownership of the securities except to the extent of their respective pecuniary interests therein. F4: The shares were held as follows: 3,056,272 by MPM BioVentures 2014, L.P. ("BV 2014"), 203,846 by MPM BioVentures 2014(B), L.P. ("BV 2014(B)"), 110,859 by MPM Asset Management Investors BV2014 LLC ("AM BV2014"), 304,001 by MPM Asset Management LLC ("AM LLC"), 421,070 by MPM SunStates Fund, L.P. ("MPM SunStates") and 62,916 by MPM Asset Management Investors Sunstates Fund LLC ("AM SunStates"). MPM BioVentures 2014 GP LLC and MPM BioVentures 2014 LLC ("BV LLC") are the direct and indirect general partners of BV 2014 and BV 2014(B) and BV LLC is the manager of AM BV2014. MPM SunStates Fund GP LLC and MPM SunStates GP Managing Member LLC ("SunStates GP") are the direct and indirect general partners of MPM SunStates and SunStates GP is the manager of AM SunStates. Luke Evnin, Ansbert Gadicke and Todd Foley are the managing directors of BV LLC, Ansbert Gadicke is a member of SunStates GP and Luke Evnin and Anbsert Gadicke are the members of AM LLC.

Filing footnotes · ownership attribution and instrument terms

F1: This Form 4 reports securities disposed of pursuant to the terms of the Agreement and Plan of Merger, dated as of March 5, 2023, by and among TCR2 Therapeutics Inc. (the "Company"), Adaptimmune Therapeutics plc ("Parent") and CM Merger Sub, Inc., an indirect wholly-owned subsidiary of Parent ("Merger Sub"), as amended by that certain Amendment No. 1 to the Agreement and Plan of Merger, dated April 5, 2023, by and among the Company, Parent and Merger Sub (the "Merger Agreement"), pursuant to which Merger Sub merged with and into the Company (the "Merger") with the Company surviving the Merger as an indirect wholly-owned subsidiary of Parent effective as of June 1, 2023 (the "Effective Time").

F2: At the Effective Time, each issued and outstanding share of common stock of the Company (each, a "Share") (excluding any Shares held in treasury of the Company or owned, directly or indirectly, by Parent or Merger Sub immediately prior to the Effective Time) was cancelled and converted into the right to receive 1.5117 (the "Exchange Ratio") American Depositary Shares of Parent ("Parent ADS") representing six ordinary shares of Parent ("Parent Ordinary Shares").

F3: The Reporting Persons disclaim beneficial ownership of the securities except to the extent of their respective pecuniary interests therein.

F4: The shares were held as follows: 3,056,272 by MPM BioVentures 2014, L.P. ("BV 2014"), 203,846 by MPM BioVentures 2014(B), L.P. ("BV 2014(B)"), 110,859 by MPM Asset Management Investors BV2014 LLC ("AM BV2014"), 304,001 by MPM Asset Management LLC ("AM LLC"), 421,070 by MPM SunStates Fund, L.P. ("MPM SunStates") and 62,916 by MPM Asset Management Investors Sunstates Fund LLC ("AM SunStates"). MPM BioVentures 2014 GP LLC and MPM BioVentures 2014 LLC ("BV LLC") are the direct and indirect general partners of BV 2014 and BV 2014(B) and BV LLC is the manager of AM BV2014. MPM SunStates Fund GP LLC and MPM SunStates GP Managing Member LLC ("SunStates GP") are the direct and indirect general partners of MPM SunStates and SunStates GP is the manager of AM SunStates. Luke Evnin, Ansbert Gadicke and Todd Foley are the managing directors of BV LLC, Ansbert Gadicke is a member of SunStates GP and Luke Evnin and Anbsert Gadicke are the members of AM LLC.

Werewolf Therapeutics, Inc.

Report date December 02, 2025 · Filed December 04, 2025

Jointly reported with MPM BioVentures 2014, L.P., MPM BioVentures 2014 (B), L.P., MPM BioVentures 2014 GP LLC, MPM Asset Management Investors BV2014 LLC

Section 16 reporting ended · disclosed 2025-12-04. Current position is not established by this disclosure.

Security / award	Ownership account	Disclosed shares / units	Disclosure context
Common StockSEC Table I · non-derivative	IndirectSee Footnotes	4,924,566	Reported balance After 2025-12-02 transaction · row 1 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 1 · 2025-12-02 · Sale · Disposed 59,277 · Balance 4,924,566 F1: Transaction effected pursuant to a plan established pursuant to Rule 10b5-1 dated September 24, 2025. F2: The shares were sold as follows: 4,070 by MPM Asset Management LLC ("AM LLC"), 25,712 by MPM BioVentures 2014, L.P. ("BV 2014"), 1,715 by MPM BioVentures 2014(B), L.P. ("BV 2014(B)"), 884 by MPM Asset Management Investors BV2014 LLC ("AM BV2014"), 5,662 by MPM Oncology Innovations Fund, L.P. ("MPM OIF") and 21,234 by UBS Oncology Impact Fund L.P. ("UBS Oncology"). F3: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $0.852 to $0.9246 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: MPM BioVentures 2014 GP LLC and MPM BioVentures 2014 LLC ("BV LLC") are the direct and indirect general partners of BV 2014 and BV 2014(B). BV LLC is the manager of AM BV2014. MPM Oncology Innovations Fund GP LLC ("MPM OIF GP") is the general partner of MPM OIF. MPM BioImpact LLC ("BioImpact") is the General Partner of Oncology Impact Fund (Cayman) Management L.P., the General Partner of UBS Oncology. Ansbert Gadicke is a member of AM LLC, a managing director of BV LLC, a manager of MPM OIF GP and the managing partner of BioImpact. Each Reporting Person disclaims beneficial ownership of the securities except to the extent of his or its pecuniary interest therein. F5: The shares are held as follows: 338,231 by AM LLC, 2,135,926 by BV 2014, 142,463 by BV 2014(B), 73,518 by AM BV2014, 468,282 by MPM OIF and 1,766,146 by UBS Oncology.
Common StockSEC Table I · non-derivative	IndirectSee Footnotes	4,867,341	Reported balance After 2025-12-03 transaction · row 2 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 2 · 2025-12-03 · Sale · Disposed 57,225 · Balance 4,867,341 F1: Transaction effected pursuant to a plan established pursuant to Rule 10b5-1 dated September 24, 2025. F6: The shares were sold as follows: 3,929 by AM LLC, 24,821 by BV 2014, 1,656 by BV 2014(B), 854 by AM BV2014, 5,466 by MPM OIF and 20,499 by UBS Oncology. F7: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $0.82 to $0.9256 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: MPM BioVentures 2014 GP LLC and MPM BioVentures 2014 LLC ("BV LLC") are the direct and indirect general partners of BV 2014 and BV 2014(B). BV LLC is the manager of AM BV2014. MPM Oncology Innovations Fund GP LLC ("MPM OIF GP") is the general partner of MPM OIF. MPM BioImpact LLC ("BioImpact") is the General Partner of Oncology Impact Fund (Cayman) Management L.P., the General Partner of UBS Oncology. Ansbert Gadicke is a member of AM LLC, a managing director of BV LLC, a manager of MPM OIF GP and the managing partner of BioImpact. Each Reporting Person disclaims beneficial ownership of the securities except to the extent of his or its pecuniary interest therein. F8: The shares are held as follows: 334,302 by AM LLC, 2,111,105 by BV 2014, 140,807 by BV 2014(B), 72,664 by AM BV2014, 462,816 by MPM OIF and 1,745,647 by UBS Oncology.
Common StockSEC Table I · non-derivative	IndirectSee Footnotes	4,784,111	Reported balance After 2025-12-04 transaction · row 3 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 3 · 2025-12-04 · Sale · Disposed 83,230 · Balance 4,784,111 F1: Transaction effected pursuant to a plan established pursuant to Rule 10b5-1 dated September 24, 2025. F9: The shares were sold as follows: 5,714 by AM LLC, 36,101 by BV 2014, 2,408 by BV 2014(B), 1,243 by AM BV2014, 7,950 by MPM OIF and 29,814 by UBS Oncology. F10: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $0.92 to $1.0208 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: MPM BioVentures 2014 GP LLC and MPM BioVentures 2014 LLC ("BV LLC") are the direct and indirect general partners of BV 2014 and BV 2014(B). BV LLC is the manager of AM BV2014. MPM Oncology Innovations Fund GP LLC ("MPM OIF GP") is the general partner of MPM OIF. MPM BioImpact LLC ("BioImpact") is the General Partner of Oncology Impact Fund (Cayman) Management L.P., the General Partner of UBS Oncology. Ansbert Gadicke is a member of AM LLC, a managing director of BV LLC, a manager of MPM OIF GP and the managing partner of BioImpact. Each Reporting Person disclaims beneficial ownership of the securities except to the extent of his or its pecuniary interest therein. F11: The shares are held as follows: 328,588 by AM LLC, 2,075,004 by BV 2014, 138,399 by BV 2014(B), 71,421 by AM BV2014, 454,866 by MPM OIF and 1,715,833 by UBS Oncology.

Filing footnotes · ownership attribution and instrument terms

F1: Transaction effected pursuant to a plan established pursuant to Rule 10b5-1 dated September 24, 2025.

F2: The shares were sold as follows: 4,070 by MPM Asset Management LLC ("AM LLC"), 25,712 by MPM BioVentures 2014, L.P. ("BV 2014"), 1,715 by MPM BioVentures 2014(B), L.P. ("BV 2014(B)"), 884 by MPM Asset Management Investors BV2014 LLC ("AM BV2014"), 5,662 by MPM Oncology Innovations Fund, L.P. ("MPM OIF") and 21,234 by UBS Oncology Impact Fund L.P. ("UBS Oncology").

F3: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $0.852 to $0.9246 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: MPM BioVentures 2014 GP LLC and MPM BioVentures 2014 LLC ("BV LLC") are the direct and indirect general partners of BV 2014 and BV 2014(B). BV LLC is the manager of AM BV2014. MPM Oncology Innovations Fund GP LLC ("MPM OIF GP") is the general partner of MPM OIF. MPM BioImpact LLC ("BioImpact") is the General Partner of Oncology Impact Fund (Cayman) Management L.P., the General Partner of UBS Oncology. Ansbert Gadicke is a member of AM LLC, a managing director of BV LLC, a manager of MPM OIF GP and the managing partner of BioImpact. Each Reporting Person disclaims beneficial ownership of the securities except to the extent of his or its pecuniary interest therein.

F5: The shares are held as follows: 338,231 by AM LLC, 2,135,926 by BV 2014, 142,463 by BV 2014(B), 73,518 by AM BV2014, 468,282 by MPM OIF and 1,766,146 by UBS Oncology.

F6: The shares were sold as follows: 3,929 by AM LLC, 24,821 by BV 2014, 1,656 by BV 2014(B), 854 by AM BV2014, 5,466 by MPM OIF and 20,499 by UBS Oncology.

F7: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $0.82 to $0.9256 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.

F8: The shares are held as follows: 334,302 by AM LLC, 2,111,105 by BV 2014, 140,807 by BV 2014(B), 72,664 by AM BV2014, 462,816 by MPM OIF and 1,745,647 by UBS Oncology.

F9: The shares were sold as follows: 5,714 by AM LLC, 36,101 by BV 2014, 2,408 by BV 2014(B), 1,243 by AM BV2014, 7,950 by MPM OIF and 29,814 by UBS Oncology.

F10: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $0.92 to $1.0208 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.

F11: The shares are held as follows: 328,588 by AM LLC, 2,075,004 by BV 2014, 138,399 by BV 2014(B), 71,421 by AM BV2014, 454,866 by MPM OIF and 1,715,833 by UBS Oncology.

iTeos Therapeutics, Inc.

Report date May 13, 2025 · Filed May 15, 2025

Jointly reported with MPM BioVentures 2014, L.P., MPM BioVentures 2014 (B), L.P., MPM Asset Management Investors BV2014 LLC, MPM BioVentures 2014 GP LLC, MPM BIOVENTURES 2018 (B), L.P., MPM ASSET MANAGEMENT INVESTORS BV2018 LLC, EVNIN LUKE, Foley Todd

Section 16 reporting ended · disclosed 2025-05-15. Current position is not established by this disclosure.

Security / award	Ownership account	Disclosed shares / units	Disclosure context
Common StockSEC Table I · non-derivative	IndirectSee Footnote	2,108,594	Reported balance After 2025-05-13 transaction · row 1 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 1 · 2025-05-13 · Sale · Disposed 630,191 · Balance 2,108,594 F1: The shares were sold as follows: 355,406 by MPM BioVentures 2014, L.P. ("BV 2014"), 22,386 by MPM BioVentures 2014 (B), L.P. ("BV 2014(B)"), 12,233 by MPM Asset Management Investors BV2014 LLC ("AM BV2014"), 224,467 by MPM BioVentures 2018, L.P. ("BV 2018"), 11,267 by MPM BioVentures 2018(B), L.P. ("BV 2018(B)") and 4,432 by MPM Asset Management Investors BV2018 LLC ("AM BV2018"). MPM BioVentures 2014 GP LLC and MPM BioVentures 2014 LLC ("BV 2014 LLC") are the direct and indirect general partners of BV 2014 and BV 2014(B). BV 2014 LLC is the manager of AM BV2014. MPM BioVentures 2018 GP LLC and MPM BioVentures 2018 LLC ("BV 2018 LLC") are the direct and indirect general partners of BV 2018 and BV 2018(B). BV 2018 LLC is the manager of AM BV2018. Messrs. Evnin and Foley are managing directors of BV 2014 LLC and BV 2018 LLC. F2: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $7.73 to $8.34 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: The shares are held as follows: 1,189,174 by BV 2014, 74,903 by BV 2014(B), 40,931 by AM BV2014, 751,056 by BV 2018, 37,699 by BV 2018(B) and 14,831 by AM BV2018. Each of the Reporting Persons disclaims beneficial ownership of the securities herein except to the extent of his or its respective pecuniary interest therein, if any.

Filing footnotes · ownership attribution and instrument terms

F1: The shares were sold as follows: 355,406 by MPM BioVentures 2014, L.P. ("BV 2014"), 22,386 by MPM BioVentures 2014 (B), L.P. ("BV 2014(B)"), 12,233 by MPM Asset Management Investors BV2014 LLC ("AM BV2014"), 224,467 by MPM BioVentures 2018, L.P. ("BV 2018"), 11,267 by MPM BioVentures 2018(B), L.P. ("BV 2018(B)") and 4,432 by MPM Asset Management Investors BV2018 LLC ("AM BV2018"). MPM BioVentures 2014 GP LLC and MPM BioVentures 2014 LLC ("BV 2014 LLC") are the direct and indirect general partners of BV 2014 and BV 2014(B). BV 2014 LLC is the manager of AM BV2014. MPM BioVentures 2018 GP LLC and MPM BioVentures 2018 LLC ("BV 2018 LLC") are the direct and indirect general partners of BV 2018 and BV 2018(B). BV 2018 LLC is the manager of AM BV2018. Messrs. Evnin and Foley are managing directors of BV 2014 LLC and BV 2018 LLC.

F2: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $7.73 to $8.34 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: The shares are held as follows: 1,189,174 by BV 2014, 74,903 by BV 2014(B), 40,931 by AM BV2014, 751,056 by BV 2018, 37,699 by BV 2018(B) and 14,831 by AM BV2018. Each of the Reporting Persons disclaims beneficial ownership of the securities herein except to the extent of his or its respective pecuniary interest therein, if any.

Transaction history

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

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

Transaction date	Company	Activity / security	Shares / units	Reported price	Reported value	Details
September 24, 2021 Filed Sep 27, 2021 21:51 UTC	iTeos Therapeutics, Inc. ITOS · Entity 75965	SaleCommon Stock	4,913	$27.81	$136,630.53	Disclosure SEC source: 0001209191-21-057823 · doc4.xml · nonDerivative · entry 3 MPM BioVentures 2014, L.P. · CIK 0001609492 · 10% owner EVNIN LUKE · CIK 0001134657 · 10% owner Foley Todd · CIK 0001473930 · 10% owner MPM BioVentures 2014 (B), L.P. · CIK 0001609493 · 10% owner MPM Asset Management Investors BV2014 LLC · CIK 0001609495 · 10% owner MPM BioVentures 2014 LLC · CIK 0001765021 · 10% owner MPM BioVentures 2014 GP LLC · CIK 0001765091 · 10% owner MPM BIOVENTURES 2018 (B), L.P. · CIK 0001729504 · 10% owner MPM ASSET MANAGEMENT INVESTORS BV2018 LLC · CIK 0001734817 · 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: 3,321,550 F1 · kind: Transaction effected pursuant to a plan established pursuant to Rule 10b5-1. F8 · shares: The shares were sold as follows: 2,927 by BV 2014, 101 by AM BV2014, 1,849 by BV 2018 and 36 by AM BV2018. F9 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $27.39 to $28.26 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. F10 · ownership.nature: The shares are held as follows: 1,882,452 by BV 2014, 107,713 by BV 2014(B), 64,792 by AM BV2014, 1,188,916 by BV 2018, 54,213 by BV 2018(B) and 23,464 by AM BV2018. The Reporting Person disclaims beneficial ownership of the securities except to the extent of his or its respective pecuniary interest therein. Read SEC document
September 23, 2021 Filed Sep 27, 2021 21:51 UTC	iTeos Therapeutics, Inc. ITOS · Entity 75965	SaleCommon Stock	717	$28.38	$20,348.46	Disclosure SEC source: 0001209191-21-057823 · doc4.xml · nonDerivative · entry 2 MPM BioVentures 2014, L.P. · CIK 0001609492 · 10% owner EVNIN LUKE · CIK 0001134657 · 10% owner Foley Todd · CIK 0001473930 · 10% owner MPM BioVentures 2014 (B), L.P. · CIK 0001609493 · 10% owner MPM Asset Management Investors BV2014 LLC · CIK 0001609495 · 10% owner MPM BioVentures 2014 LLC · CIK 0001765021 · 10% owner MPM BioVentures 2014 GP LLC · CIK 0001765091 · 10% owner MPM BIOVENTURES 2018 (B), L.P. · CIK 0001729504 · 10% owner MPM ASSET MANAGEMENT INVESTORS BV2018 LLC · CIK 0001734817 · 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: 3,326,463 F1 · kind: Transaction effected pursuant to a plan established pursuant to Rule 10b5-1. F5 · shares: The shares were sold as follows: 427 by BV 2014, 15 by AM BV2014, 270 by BV 2018 and 5 by AM BV2018. F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $28.26 to $28.46 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. F7 · ownership.nature: The shares are held as follows: 1,885,379 by BV 2014, 107,713 by BV 2014(B), 64,893 by AM BV2014, 1,190,765 by BV 2018, 54,213 by BV 2018(B) and 23,500 by AM BV2018. Each of the Reporting Persons disclaims beneficial ownership of the securities herein except to the extent of his or its respective pecuniary interest therein, if any. Read SEC document
September 23, 2021 Filed Sep 27, 2021 21:51 UTC	iTeos Therapeutics, Inc. ITOS · Entity 75965	SaleCommon Stock	36,213	$27.96	$1,012,515.48	Disclosure SEC source: 0001209191-21-057823 · doc4.xml · nonDerivative · entry 1 MPM BioVentures 2014, L.P. · CIK 0001609492 · 10% owner EVNIN LUKE · CIK 0001134657 · 10% owner Foley Todd · CIK 0001473930 · 10% owner MPM BioVentures 2014 (B), L.P. · CIK 0001609493 · 10% owner MPM Asset Management Investors BV2014 LLC · CIK 0001609495 · 10% owner MPM BioVentures 2014 LLC · CIK 0001765021 · 10% owner MPM BioVentures 2014 GP LLC · CIK 0001765091 · 10% owner MPM BIOVENTURES 2018 (B), L.P. · CIK 0001729504 · 10% owner MPM ASSET MANAGEMENT INVESTORS BV2018 LLC · CIK 0001734817 · 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: 3,327,180 F1 · kind: Transaction effected pursuant to a plan established pursuant to Rule 10b5-1. F2 · shares: The shares were sold as follows: 21,575 by MPM BioVentures 2014, L.P. ("BV 2014"), 743 by MPM Asset Management Investors BV2014 LLC ("AM BV2014"), 13,626 by MPM BioVentures 2018, L.P. ("BV 2018") and 269 by MPM Asset Management Investors BV2018 LLC ("AM BV2018"). MPM BioVentures 2014 GP LLC and MPM BioVentures 2014 LLC ("BV 2014 LLC") are the direct and indirect general partners of BV 2014 and BV 2014(B). BV 2014 LLC is the manager of AM BV2014. MPM BioVentures 2018 GP LLC and MPM BioVentures 2018 LLC ("BV 2018 LLC") are the direct and indirect general partners of BV 2018 and BV 2018(B). BV 2018 LLC is the manager of AM BV2018. Messrs. Evnin and Foley are managing directors of BV 2014 LLC and BV 2018 LLC. F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $27.25 to $28.24 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 held as follows: 1,885,806 by BV 2014, 107,713 by MPM BioVentures 2014(B), L.P. ("BV 2014(B)"), 64,908 by AM BV2014, 1,191,035 by BV 2018, 54,213 by MPM BioVentures 2018(B), L.P. ("BV 2018(B)") and 23,505 by AM BV2018. The Reporting Person disclaims beneficial ownership of the securities except to the extent of his or its respective pecuniary interest therein. Read SEC document
September 22, 2021 Filed Sep 23, 2021 20:19 UTC	iTeos Therapeutics, Inc. ITOS · Entity 75965	SaleCommon Stock	14,294	$27.54	$393,656.76	Disclosure SEC source: 0001209191-21-057414 · doc4.xml · nonDerivative · entry 2 MPM BioVentures 2014, L.P. · CIK 0001609492 · 10% owner EVNIN LUKE · CIK 0001134657 · 10% owner Foley Todd · CIK 0001473930 · 10% owner MPM BioVentures 2014 (B), L.P. · CIK 0001609493 · 10% owner MPM Asset Management Investors BV2014 LLC · CIK 0001609495 · 10% owner MPM BioVentures 2014 LLC · CIK 0001765021 · 10% owner MPM BioVentures 2014 GP LLC · CIK 0001765091 · 10% owner MPM BIOVENTURES 2018 (B), L.P. · CIK 0001729504 · 10% owner MPM ASSET MANAGEMENT INVESTORS BV2018 LLC · CIK 0001734817 · 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: 3,363,393 F1 · kind: Transaction effected pursuant to a plan established pursuant to Rule 10b5-1. F5 · shares: The shares were sold as follows: 8,516 by BV 2014, 293 by AM BV2014, 5,379 by BV 2018 and 106 by AM BV2018. F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $27.03 to $27.75 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. F7 · ownership.nature: The shares are held as follows: 1,907,381 by BV 2014, 107,713 by BV 2014(B), 65,651 by AM BV2014, 1,204,661 by BV 2018, 54,213 by BV 2018(B) and 23,774 by AM BV2018. Each of the Reporting Persons disclaims beneficial ownership of the securities herein except to the extent of his or its respective pecuniary interest therein, if any. Read SEC document
September 21, 2021 Filed Sep 23, 2021 20:19 UTC	iTeos Therapeutics, Inc. ITOS · Entity 75965	SaleCommon Stock	19,635	$27.47	$539,373.45	Disclosure SEC source: 0001209191-21-057414 · doc4.xml · nonDerivative · entry 1 MPM BioVentures 2014, L.P. · CIK 0001609492 · 10% owner EVNIN LUKE · CIK 0001134657 · 10% owner Foley Todd · CIK 0001473930 · 10% owner MPM BioVentures 2014 (B), L.P. · CIK 0001609493 · 10% owner MPM Asset Management Investors BV2014 LLC · CIK 0001609495 · 10% owner MPM BioVentures 2014 LLC · CIK 0001765021 · 10% owner MPM BioVentures 2014 GP LLC · CIK 0001765091 · 10% owner MPM BIOVENTURES 2018 (B), L.P. · CIK 0001729504 · 10% owner MPM ASSET MANAGEMENT INVESTORS BV2018 LLC · CIK 0001734817 · 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: 3,377,687 F1 · kind: Transaction effected pursuant to a plan established pursuant to Rule 10b5-1. F2 · shares: The shares were sold as follows: 11,698 by MPM BioVentures 2014, L.P. ("BV 2014"), 403 by MPM Asset Management Investors BV2014 LLC ("AM BV2014"), 7,388 by MPM BioVentures 2018, L.P. ("BV 2018") and 146 by MPM Asset Management Investors BV2018 LLC ("AM BV2018"). MPM BioVentures 2014 GP LLC and MPM BioVentures 2014 LLC ("BV 2014 LLC") are the direct and indirect general partners of BV 2014 and BV 2014(B). BV 2014 LLC is the manager of AM BV2014. MPM BioVentures 2018 GP LLC and MPM BioVentures 2018 LLC ("BV 2018 LLC") are the direct and indirect general partners of BV 2018 and BV 2018(B). BV 2018 LLC is the manager of AM BV2018. Messrs. Evnin and Foley are managing directors of BV 2014 LLC and BV 2018 LLC. F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $26.98 to $27.72 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 held as follows: 1,915,897 by BV 2014, 107,713 by MPM BioVentures 2014(B), L.P. ("BV 2014(B)"), 65,944 by AM BV2014, 1,210,040 by BV 2018, 54,213 by MPM BioVentures 2018(B), L.P. ("BV 2018(B)") and 23,880 by AM BV2018. The Reporting Person disclaims beneficial ownership of the securities except to the extent of his pecuniary interest therein. Read SEC document
September 20, 2021 Filed Sep 20, 2021 22:38 UTC	iTeos Therapeutics, Inc. ITOS · Entity 75965	SaleCommon Stock	13,701	$27.84	$381,435.84	Disclosure SEC source: 0001209191-21-056950 · doc4.xml · nonDerivative · entry 4 MPM BioVentures 2014, L.P. · CIK 0001609492 · 10% owner EVNIN LUKE · CIK 0001134657 · 10% owner Foley Todd · CIK 0001473930 · 10% owner MPM BioVentures 2014 (B), L.P. · CIK 0001609493 · 10% owner MPM Asset Management Investors BV2014 LLC · CIK 0001609495 · 10% owner MPM BioVentures 2014 LLC · CIK 0001765021 · 10% owner MPM BioVentures 2014 GP LLC · CIK 0001765091 · 10% owner MPM BIOVENTURES 2018 (B), L.P. · CIK 0001729504 · 10% owner MPM ASSET MANAGEMENT INVESTORS BV2018 LLC · CIK 0001734817 · 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: 3,397,322 F1 · kind: Transaction effected pursuant to a plan established pursuant to Rule 10b5-1. F11 · shares: The shares were sold as follows: 8,163 by BV 2014, 281 by AM BV2014, 5,156 by BV 2018 and 101 by AM BV2018. F12 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $27.53 to $28.39 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. F13 · ownership.nature: The shares are held as follows: 1,927,595 by BV 2014, 107,713 by BV 2014(B), 66,347 by AM BV2014, 1,217,428 by BV 2018, 54,213 by BV 2018(B) and 24,026 by AM BV2018. The Reporting Person disclaims beneficial ownership of the securities except to the extent of his pecuniary interest therein. Read SEC document
September 20, 2021 Filed Sep 20, 2021 22:38 UTC	iTeos Therapeutics, Inc. ITOS · Entity 75965	SaleCommon Stock	10,602	$27.03	$286,572.06	Disclosure SEC source: 0001209191-21-056950 · doc4.xml · nonDerivative · entry 3 MPM BioVentures 2014, L.P. · CIK 0001609492 · 10% owner EVNIN LUKE · CIK 0001134657 · 10% owner Foley Todd · CIK 0001473930 · 10% owner MPM BioVentures 2014 (B), L.P. · CIK 0001609493 · 10% owner MPM Asset Management Investors BV2014 LLC · CIK 0001609495 · 10% owner MPM BioVentures 2014 LLC · CIK 0001765021 · 10% owner MPM BioVentures 2014 GP LLC · CIK 0001765091 · 10% owner MPM BIOVENTURES 2018 (B), L.P. · CIK 0001729504 · 10% owner MPM ASSET MANAGEMENT INVESTORS BV2018 LLC · CIK 0001734817 · 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: 3,411,023 F1 · kind: Transaction effected pursuant to a plan established pursuant to Rule 10b5-1. F8 · shares: The shares were sold as follows: 6,317 by BV 2014, 217 by AM BV2014, 3,990 by BV 2018 and 78 by AM BV2018. F9 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $26.535 to $27.52 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. F10 · ownership.nature: The shares are held as follows: 1,935,758 by BV 2014, 107,713 by BV 2014(B), 66,628 by AM BV2014, 1,222,584 by BV 2018, 54,213 by BV 2018(B) and 24,127 by AM BV2018. The Reporting Person disclaims beneficial ownership of the securities except to the extent of his pecuniary interest therein. Read SEC document
September 17, 2021 Filed Sep 20, 2021 22:38 UTC	iTeos Therapeutics, Inc. ITOS · Entity 75965	SaleCommon Stock	45,698	$28.82	$1,317,016.36	Disclosure SEC source: 0001209191-21-056950 · doc4.xml · nonDerivative · entry 2 MPM BioVentures 2014, L.P. · CIK 0001609492 · 10% owner EVNIN LUKE · CIK 0001134657 · 10% owner Foley Todd · CIK 0001473930 · 10% owner MPM BioVentures 2014 (B), L.P. · CIK 0001609493 · 10% owner MPM Asset Management Investors BV2014 LLC · CIK 0001609495 · 10% owner MPM BioVentures 2014 LLC · CIK 0001765021 · 10% owner MPM BioVentures 2014 GP LLC · CIK 0001765091 · 10% owner MPM BIOVENTURES 2018 (B), L.P. · CIK 0001729504 · 10% owner MPM ASSET MANAGEMENT INVESTORS BV2018 LLC · CIK 0001734817 · 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: 3,421,625 F1 · kind: Transaction effected pursuant to a plan established pursuant to Rule 10b5-1. F5 · shares: The shares were sold as follows: 27,226 by BV 2014, 937 by AM BV2014, 17,195 by BV 2018 and 340 by AM BV2018. F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $28.50 to $29.11 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. F7 · ownership.nature: The shares are held as follows: 1,942,075 by BV 2014, 107,713 by BV 2014(B), 66,845 by AM BV2014, 1,226 574 by BV 2018, 54,213 by BV 2018(B) and 24,205 by AM BV2018. Each of the Reporting Persons disclaims beneficial ownership of the securities herein except to the extent of his or its respective pecuniary interest therein, if any. Read SEC document
September 16, 2021 Filed Sep 20, 2021 22:38 UTC	iTeos Therapeutics, Inc. ITOS · Entity 75965	SaleCommon Stock	21,253	$28.47	$605,072.91	Disclosure SEC source: 0001209191-21-056950 · doc4.xml · nonDerivative · entry 1 MPM BioVentures 2014, L.P. · CIK 0001609492 · 10% owner EVNIN LUKE · CIK 0001134657 · 10% owner Foley Todd · CIK 0001473930 · 10% owner MPM BioVentures 2014 (B), L.P. · CIK 0001609493 · 10% owner MPM Asset Management Investors BV2014 LLC · CIK 0001609495 · 10% owner MPM BioVentures 2014 LLC · CIK 0001765021 · 10% owner MPM BioVentures 2014 GP LLC · CIK 0001765091 · 10% owner MPM BIOVENTURES 2018 (B), L.P. · CIK 0001729504 · 10% owner MPM ASSET MANAGEMENT INVESTORS BV2018 LLC · CIK 0001734817 · 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: 3,467,323 F1 · kind: Transaction effected pursuant to a plan established pursuant to Rule 10b5-1. F2 · shares: The shares were sold as follows: 12,662 by MPM BioVentures 2014, L.P. ("BV 2014"), 436 by MPM Asset Management Investors BV2014 LLC ("AM BV2014"), 7,997 by MPM BioVentures 2018, L.P. ("BV 2018") and 158 by MPM Asset Management Investors BV2018 LLC ("AM BV2018"). MPM BioVentures 2014 GP LLC and MPM BioVentures 2014 LLC ("BV 2014 LLC") are the direct and indirect general partners of BV 2014 and BV 2014(B). BV 2014 LLC is the manager of AM BV2014. MPM BioVentures 2018 GP LLC and MPM BioVentures 2018 LLC ("BV 2018 LLC") are the direct and indirect general partners of BV 2018 and BV 2018(B). BV 2018 LLC is the manager of AM BV2018. Messrs. Evnin and Foley are managing directors of BV 2014 LLC and BV 2018 LLC. F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $27.885 to $28.69 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 held as follows: 1,969,301 by BV 2014, 107,713 by MPM BioVentures 2014(B), L.P. ("BV 2014(B)"), 67,782 by AM BV2014, 1,243,769 by BV 2018, 54,213 by MPM BioVentures 2018(B), L.P. ("BV 2018(B)") and 24,545 by AM BV2018. The Reporting Person disclaims beneficial ownership of the securities except to the extent of his pecuniary interest therein. Read SEC document
September 15, 2021 Filed Sep 16, 2021 20:48 UTC	iTeos Therapeutics, Inc. ITOS · Entity 75965	SaleCommon Stock	991	$28.15	$27,896.65	Disclosure SEC source: 0001209191-21-056415 · doc4.xml · nonDerivative · entry 4 MPM BioVentures 2014, L.P. · CIK 0001609492 · 10% owner EVNIN LUKE · CIK 0001134657 · 10% owner Foley Todd · CIK 0001473930 · 10% owner MPM BioVentures 2014 (B), L.P. · CIK 0001609493 · 10% owner MPM Asset Management Investors BV2014 LLC · CIK 0001609495 · 10% owner MPM BioVentures 2014 LLC · CIK 0001765021 · 10% owner MPM BioVentures 2014 GP LLC · CIK 0001765091 · 10% owner MPM BIOVENTURES 2018 (B), L.P. · CIK 0001729504 · 10% owner MPM ASSET MANAGEMENT INVESTORS BV2018 LLC · CIK 0001734817 · 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: 3,488,576 F1 · kind: Transaction effected pursuant to a plan established pursuant to Rule 10b5-1. F11 · shares: The shares were sold as follows: 591 by BV 2014, 20 by AM BV2014, 373 by BV 2018 and 7 by AM BV2018. F12 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $28.13 to $28.19 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. F13 · ownership.nature: The shares are held as follows: 1,981,963 by BV 2014, 107,713 by BV 2014(B), 68,218 by AM BV2014, 1,251,766 by BV 2018, 54,213 by BV 2018(B) and 24,703 by AM BV2018. The Reporting Person disclaims beneficial ownership of the securities except to the extent of his pecuniary interest therein. Read SEC document
September 15, 2021 Filed Sep 16, 2021 20:48 UTC	iTeos Therapeutics, Inc. ITOS · Entity 75965	SaleCommon Stock	23,113	$27.79	$642,310.27	Disclosure SEC source: 0001209191-21-056415 · doc4.xml · nonDerivative · entry 3 MPM BioVentures 2014, L.P. · CIK 0001609492 · 10% owner EVNIN LUKE · CIK 0001134657 · 10% owner Foley Todd · CIK 0001473930 · 10% owner MPM BioVentures 2014 (B), L.P. · CIK 0001609493 · 10% owner MPM Asset Management Investors BV2014 LLC · CIK 0001609495 · 10% owner MPM BioVentures 2014 LLC · CIK 0001765021 · 10% owner MPM BioVentures 2014 GP LLC · CIK 0001765091 · 10% owner MPM BIOVENTURES 2018 (B), L.P. · CIK 0001729504 · 10% owner MPM ASSET MANAGEMENT INVESTORS BV2018 LLC · CIK 0001734817 · 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: 3,489,567 F1 · kind: Transaction effected pursuant to a plan established pursuant to Rule 10b5-1. F8 · shares: The shares were sold as follows: 13,770 by BV 2014, 474 by AM BV2014, 8,697 by BV 2018 and 172 by AM BV2018. F9 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $27.12 to $28.11 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. F10 · ownership.nature: The shares are held as follows: 1,982,554 by BV 2014, 107,713 by BV 2014(B), 68,238 by AM BV2014, 1,252,139 by BV 2018, 54,213 by BV 2018(B) and 24,710 by AM BV2018. The Reporting Person disclaims beneficial ownership of the securities except to the extent of his pecuniary interest therein. Read SEC document
September 14, 2021 Filed Sep 16, 2021 20:48 UTC	iTeos Therapeutics, Inc. ITOS · Entity 75965	SaleCommon Stock	3,623	$27.99	$101,407.77	Disclosure SEC source: 0001209191-21-056415 · doc4.xml · nonDerivative · entry 2 MPM BioVentures 2014, L.P. · CIK 0001609492 · 10% owner EVNIN LUKE · CIK 0001134657 · 10% owner Foley Todd · CIK 0001473930 · 10% owner MPM BioVentures 2014 (B), L.P. · CIK 0001609493 · 10% owner MPM Asset Management Investors BV2014 LLC · CIK 0001609495 · 10% owner MPM BioVentures 2014 LLC · CIK 0001765021 · 10% owner MPM BioVentures 2014 GP LLC · CIK 0001765091 · 10% owner MPM BIOVENTURES 2018 (B), L.P. · CIK 0001729504 · 10% owner MPM ASSET MANAGEMENT INVESTORS BV2018 LLC · CIK 0001734817 · 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: 3,512,680 F1 · kind: Transaction effected pursuant to a plan established pursuant to Rule 10b5-1. F5 · shares: The shares were sold as follows: 2,159 by BV 2014, 74 by AM BV2014, 1,363 by BV 2018 and 27 by AM BV2018. F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $27.92 to $28.055 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. F7 · ownership.nature: The shares are held as follows: 1,996,324 by BV 2014, 107,713 by BV 2014(B), 68,712 by AM BV2014, 1,260,836 by BV 2018, 54,213 by BV 2018(B) and 24,882 by AM BV2018. Each of the Reporting Persons disclaims beneficial ownership of the securities herein except to the extent of his or its respective pecuniary interest therein, if any. Read SEC document
September 14, 2021 Filed Sep 16, 2021 20:48 UTC	iTeos Therapeutics, Inc. ITOS · Entity 75965	SaleCommon Stock	17,938	$27.50	$493,295.00	Disclosure SEC source: 0001209191-21-056415 · doc4.xml · nonDerivative · entry 1 MPM BioVentures 2014, L.P. · CIK 0001609492 · 10% owner EVNIN LUKE · CIK 0001134657 · 10% owner Foley Todd · CIK 0001473930 · 10% owner MPM BioVentures 2014 (B), L.P. · CIK 0001609493 · 10% owner MPM Asset Management Investors BV2014 LLC · CIK 0001609495 · 10% owner MPM BioVentures 2014 LLC · CIK 0001765021 · 10% owner MPM BioVentures 2014 GP LLC · CIK 0001765091 · 10% owner MPM BIOVENTURES 2018 (B), L.P. · CIK 0001729504 · 10% owner MPM ASSET MANAGEMENT INVESTORS BV2018 LLC · CIK 0001734817 · 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: 3,516,303 F1 · kind: Transaction effected pursuant to a plan established pursuant to Rule 10b5-1. F2 · shares: The shares were sold as follows: 10,687 by MPM BioVentures 2014, L.P. ("BV 2014"), 368 by MPM Asset Management Investors BV2014 LLC ("AM BV2014"), 6,750 by MPM BioVentures 2018, L.P. ("BV 2018") and 133 by MPM Asset Management Investors BV2018 LLC ("AM BV2018"). MPM BioVentures 2014 GP LLC and MPM BioVentures 2014 LLC ("BV 2014 LLC") are the direct and indirect general partners of BV 2014 and BV 2014(B). BV 2014 LLC is the manager of AM BV2014. MPM BioVentures 2018 GP LLC and MPM BioVentures 2018 LLC ("BV 2018 LLC") are the direct and indirect general partners of BV 2018 and BV 2018(B). BV 2018 LLC is the manager of AM BV2018. Messrs. Evnin and Foley are managing directors of BV 2014 LLC and BV 2018 LLC. F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $26.91 to $27.90 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 held as follows: 1,998,483 by BV 2014, 107,713 by MPM BioVentures 2014(B), L.P. ("BV 2014(B)"), 68,786 by AM BV2014, 1,262,199 by BV 2018, 54,213 by MPM BioVentures 2018(B), L.P. ("BV 2018(B)") and 24,909 by AM BV2018. The Reporting Person disclaims beneficial ownership of the securities except to the extent of his pecuniary interest therein. Read SEC document
September 13, 2021 Filed Sep 13, 2021 23:01 UTC	iTeos Therapeutics, Inc. ITOS · Entity 75965	SaleCommon Stock	21,384	$27.64	$591,053.76	Disclosure SEC source: 0001209191-21-055743 · doc4.xml · nonDerivative · entry 4 MPM BioVentures 2014, L.P. · CIK 0001609492 · 10% owner EVNIN LUKE · CIK 0001134657 · 10% owner Foley Todd · CIK 0001473930 · 10% owner MPM BioVentures 2014 (B), L.P. · CIK 0001609493 · 10% owner MPM Asset Management Investors BV2014 LLC · CIK 0001609495 · 10% owner MPM BioVentures 2014 LLC · CIK 0001765021 · 10% owner MPM BioVentures 2014 GP LLC · CIK 0001765091 · 10% owner MPM BIOVENTURES 2018 (B), L.P. · CIK 0001729504 · 10% owner MPM ASSET MANAGEMENT INVESTORS BV2018 LLC · CIK 0001734817 · 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: 3,534,241 F1 · kind: Transaction effected pursuant to a plan established pursuant to Rule 10b5-1. F11 · shares: The shares were sold as follows: 12,740 by BV 2014, 439 by AM BV2014, 8,046 by BV 2018 and 159 by AM BV2018. F12 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $27.17 to $27.99 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 range set forth in this footnote. F13 · ownership.nature: The shares are held as follows: 2,009,170 by BV 2014, 107,713 by BV 2014(B), 69,154 by AM BV2014, 1,268,949 by BV 2018, 54,213 by BV 2018(B) and 25,042 by AM BV2018. The Reporting Person disclaims beneficial ownership of the securities except to the extent of his pecuniary interest therein. Read SEC document
September 10, 2021 Filed Sep 13, 2021 23:01 UTC	iTeos Therapeutics, Inc. ITOS · Entity 75965	SaleCommon Stock	6,771	$28.73	$194,530.83	Disclosure SEC source: 0001209191-21-055743 · doc4.xml · nonDerivative · entry 3 MPM BioVentures 2014, L.P. · CIK 0001609492 · 10% owner EVNIN LUKE · CIK 0001134657 · 10% owner Foley Todd · CIK 0001473930 · 10% owner MPM BioVentures 2014 (B), L.P. · CIK 0001609493 · 10% owner MPM Asset Management Investors BV2014 LLC · CIK 0001609495 · 10% owner MPM BioVentures 2014 LLC · CIK 0001765021 · 10% owner MPM BioVentures 2014 GP LLC · CIK 0001765091 · 10% owner MPM BIOVENTURES 2018 (B), L.P. · CIK 0001729504 · 10% owner MPM ASSET MANAGEMENT INVESTORS BV2018 LLC · CIK 0001734817 · 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: 3,555,625 F1 · kind: Transaction effected pursuant to a plan established pursuant to Rule 10b5-1. F8 · shares: The shares were sold as follows: 4,034 by BV 2014, 139 by AM BV2014, 2,547 by BV 2018 and 51 by AM BV2018. F9 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $28.46 to $28.91 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. F10 · ownership.nature: The shares are held as follows: 2,021,910 by BV 2014, 107,713 by BV 2014(B), 69,593 by AM BV2014, 1,276,995 by BV 2018, 54,213 by BV 2018(B) and 25,201 by AM BV2018. The Reporting Person disclaims beneficial ownership of the securities except to the extent of his pecuniary interest therein. Read SEC document
September 10, 2021 Filed Sep 13, 2021 23:01 UTC	iTeos Therapeutics, Inc. ITOS · Entity 75965	SaleCommon Stock	6,760	$27.86	$188,333.60	Disclosure SEC source: 0001209191-21-055743 · doc4.xml · nonDerivative · entry 2 MPM BioVentures 2014, L.P. · CIK 0001609492 · 10% owner EVNIN LUKE · CIK 0001134657 · 10% owner Foley Todd · CIK 0001473930 · 10% owner MPM BioVentures 2014 (B), L.P. · CIK 0001609493 · 10% owner MPM Asset Management Investors BV2014 LLC · CIK 0001609495 · 10% owner MPM BioVentures 2014 LLC · CIK 0001765021 · 10% owner MPM BioVentures 2014 GP LLC · CIK 0001765091 · 10% owner MPM BIOVENTURES 2018 (B), L.P. · CIK 0001729504 · 10% owner MPM ASSET MANAGEMENT INVESTORS BV2018 LLC · CIK 0001734817 · 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: 3,562,396 F1 · kind: Transaction effected pursuant to a plan established pursuant to Rule 10b5-1. F5 · shares: The shares were sold as follows: 4,027 by BV 2014, 139 by AM BV2014, 2,544 by BV 2018 and 50 by AM BV2018. F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $27.455 to $28.45 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. F7 · ownership.nature: The shares are held as follows: 2,025,944 by BV 2014, 107,713 by BV 2014(B), 69,732 by AM BV2014, 1,279,542 by BV 2018, 54,213 by BV 2018(B) and 25,252 by AM BV2018. Each of the Reporting Persons disclaims beneficial ownership of the securities herein except to the extent of his or its respective pecuniary interest therein, if any. Read SEC document
September 09, 2021 Filed Sep 13, 2021 23:01 UTC	iTeos Therapeutics, Inc. ITOS · Entity 75965	SaleCommon Stock	22,725	$28.97	$658,343.25	Disclosure SEC source: 0001209191-21-055743 · doc4.xml · nonDerivative · entry 1 MPM BioVentures 2014, L.P. · CIK 0001609492 · 10% owner EVNIN LUKE · CIK 0001134657 · 10% owner Foley Todd · CIK 0001473930 · 10% owner MPM BioVentures 2014 (B), L.P. · CIK 0001609493 · 10% owner MPM Asset Management Investors BV2014 LLC · CIK 0001609495 · 10% owner MPM BioVentures 2014 LLC · CIK 0001765021 · 10% owner MPM BioVentures 2014 GP LLC · CIK 0001765091 · 10% owner MPM BIOVENTURES 2018 (B), L.P. · CIK 0001729504 · 10% owner MPM ASSET MANAGEMENT INVESTORS BV2018 LLC · CIK 0001734817 · 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: 3,569,156 F1 · kind: Transaction effected pursuant to a plan established pursuant to Rule 10b5-1. F2 · shares: The shares were sold as follows: 13,539 by MPM BioVentures 2014, L.P. ("BV 2014"), 466 by MPM Asset Management Investors BV2014 LLC ("AM BV2014"), 8,551 by MPM BioVentures 2018, L.P. ("BV 2018") and 169 by MPM Asset Management Investors BV2018 LLC ("AM BV2018"). MPM BioVentures 2014 GP LLC and MPM BioVentures 2014 LLC ("BV 2014 LLC") are the direct and indirect general partners of BV 2014 and BV 2014(B). BV 2014 LLC is the manager of AM BV2014. MPM BioVentures 2018 GP LLC and MPM BioVentures 2018 LLC ("BV 2018 LLC") are the direct and indirect general partners of BV 2018 and BV 2018(B). BV 2018 LLC is the manager of AM BV2018. Messrs. Evnin and Foley are managing directors of BV 2014 LLC and BV 2018 LLC. F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $28.29 to $29.27 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 held as follows: 2,029,971 by BV 2014, 107,713 by MPM BioVentures 2014(B), L.P. ("BV 2014(B)"), 69,871 by AM BV2014, 1,282,086 by BV 2018, 54,213 by MPM BioVentures 2018(B), L.P. ("BV 2018(B)") and 25,302 by AM BV2018. The Reporting Person disclaims beneficial ownership of the securities except to the extent of his pecuniary interest therein. Read SEC document
September 08, 2021 Filed Sep 8, 2021 23:13 UTC	iTeos Therapeutics, Inc. ITOS · Entity 75965	SaleCommon Stock	940	$29.10	$27,354.00	Disclosure SEC source: 0001209191-21-055210 · doc4.xml · nonDerivative · entry 4 MPM BioVentures 2014, L.P. · CIK 0001609492 · 10% owner EVNIN LUKE · CIK 0001134657 · 10% owner Foley Todd · CIK 0001473930 · 10% owner MPM BioVentures 2014 (B), L.P. · CIK 0001609493 · 10% owner MPM Asset Management Investors BV2014 LLC · CIK 0001609495 · 10% owner MPM BioVentures 2014 LLC · CIK 0001765021 · 10% owner MPM BioVentures 2014 GP LLC · CIK 0001765091 · 10% owner MPM BIOVENTURES 2018 (B), L.P. · CIK 0001729504 · 10% owner MPM ASSET MANAGEMENT INVESTORS BV2018 LLC · CIK 0001734817 · 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: 3,591,881 F1 · kind: Transaction effected pursuant to a plan established pursuant to Rule 10b5-1. F11 · shares: The shares were sold as follows: 560 by BV 2014, 19 by AM BV2014, 354 by BV 2018 and 7 by AM BV2018. F12 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $29.04 to $29.21 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. F13 · ownership.nature: The shares are held as follows: 2,043,510 by BV 2014, 107,713 by BV 2014(B), 70,337 by AM BV2014, 1,290,637 by BV 2018, 54,213 by BV 2018(B) and 25,471 by AM BV2018. The Reporting Person disclaims beneficial ownership of the securities except to the extent of his pecuniary interest therein. Page Read SEC document
September 08, 2021 Filed Sep 8, 2021 23:13 UTC	iTeos Therapeutics, Inc. ITOS · Entity 75965	SaleCommon Stock	11,152	$28.61	$319,058.72	Disclosure SEC source: 0001209191-21-055210 · doc4.xml · nonDerivative · entry 3 MPM BioVentures 2014, L.P. · CIK 0001609492 · 10% owner EVNIN LUKE · CIK 0001134657 · 10% owner Foley Todd · CIK 0001473930 · 10% owner MPM BioVentures 2014 (B), L.P. · CIK 0001609493 · 10% owner MPM Asset Management Investors BV2014 LLC · CIK 0001609495 · 10% owner MPM BioVentures 2014 LLC · CIK 0001765021 · 10% owner MPM BioVentures 2014 GP LLC · CIK 0001765091 · 10% owner MPM BIOVENTURES 2018 (B), L.P. · CIK 0001729504 · 10% owner MPM ASSET MANAGEMENT INVESTORS BV2018 LLC · CIK 0001734817 · 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: 3,592,821 F1 · kind: Transaction effected pursuant to a plan established pursuant to Rule 10b5-1. F8 · shares: The shares were sold as follows: 6,644 by BV 2014, 229 by AM BV2014, 4,196 by BV 2018 and 83 by AM BV2018. F9 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $28.02 to $29.01 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. F10 · ownership.nature: The shares are held as follows: 2,044,070 by BV 2014, 107,713 by BV 2014(B), 70,356 by AM BV2014, 1,290,991 by BV 2018, 54,213 by BV 2018(B) and 25,478 by AM BV2018. The Reporting Person disclaims beneficial ownership of the securities except to the extent of his pecuniary interest therein. Read SEC document
September 07, 2021 Filed Sep 8, 2021 23:13 UTC	iTeos Therapeutics, Inc. ITOS · Entity 75965	OtherCommon Stock	31,340	$0.00	$0.00	Disclosure SEC source: 0001209191-21-055210 · doc4.xml · nonDerivative · entry 2 MPM BioVentures 2014, L.P. · CIK 0001609492 · 10% owner EVNIN LUKE · CIK 0001134657 · 10% owner Foley Todd · CIK 0001473930 · 10% owner MPM BioVentures 2014 (B), L.P. · CIK 0001609493 · 10% owner MPM Asset Management Investors BV2014 LLC · CIK 0001609495 · 10% owner MPM BioVentures 2014 LLC · CIK 0001765021 · 10% owner MPM BioVentures 2014 GP LLC · CIK 0001765091 · 10% owner MPM BIOVENTURES 2018 (B), L.P. · CIK 0001729504 · 10% owner MPM ASSET MANAGEMENT INVESTORS BV2018 LLC · CIK 0001734817 · 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: 3,603,793 F5 · kind: Represents a pro rata in-kind distribution from BV 2014(B) and BV 2018(B) to its respectve limited partners for no consideration. F6 · shares: The shares were distributed as follows: 20,848 by BV 2014(B) and 10,492 by AM BV 2018(B). F7 · ownership.nature: The shares are held as follows: 2,050,714 by BV 2014, 107,713 by BV 2014(B), 70,585 by AM BV2014, 1,295,187 by BV 2018, 54,213 by BV 2018(B) and 25,561 by AM BV2018. The Reporting Person disclaims beneficial ownership of the securities except to the extent of his pecuniary interest therein. Read SEC document
September 07, 2021 Filed Sep 8, 2021 23:13 UTC	iTeos Therapeutics, Inc. ITOS · Entity 75965	SaleCommon Stock	30,474	$29.18	$889,231.32	Disclosure SEC source: 0001209191-21-055210 · doc4.xml · nonDerivative · entry 1 MPM BioVentures 2014, L.P. · CIK 0001609492 · 10% owner EVNIN LUKE · CIK 0001134657 · 10% owner Foley Todd · CIK 0001473930 · 10% owner MPM BioVentures 2014 (B), L.P. · CIK 0001609493 · 10% owner MPM Asset Management Investors BV2014 LLC · CIK 0001609495 · 10% owner MPM BioVentures 2014 LLC · CIK 0001765021 · 10% owner MPM BioVentures 2014 GP LLC · CIK 0001765091 · 10% owner MPM BIOVENTURES 2018 (B), L.P. · CIK 0001729504 · 10% owner MPM ASSET MANAGEMENT INVESTORS BV2018 LLC · CIK 0001734817 · 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: 3,635,313 F1 · kind: Transaction effected pursuant to a plan established pursuant to Rule 10b5-1. F2 · shares: The shares were sold as follows: 18,156 by MPM BioVentures 2014, L.P. ("BV 2014"), 625 by MPM Asset Management Investors BV2014 LLC ("AM BV2014"), 11,467 by MPM BioVentures 2018, L.P. ("BV 2018") and 226 by MPM Asset Management Investors BV2018 LLC ("AM BV2018"). MPM BioVentures 2014 GP LLC and MPM BioVentures 2014 LLC ("BV 2014 LLC") are the direct and indirect general partners of BV 2014 and BV 2014(B). BV 2014 LLC is the manager of AM BV2014. MPM BioVentures 2018 GP LLC and MPM BioVentures 2018 LLC ("BV 2018 LLC") are the direct and indirect general partners of BV 2018 and BV 2018(B). BV 2018 LLC is the manager of AM BV2018. Messrs. Evnin and Foley are managing directors of BV 2014 LLC and BV 2018 LLC. F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $28.89 to $29.64 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 held as follows: 2,050,714 by BV 2014, 128,561 by MPM BioVentures 2014(B), L.P. ("BV 2014(B)"), 70,585 by AM BV2014, 1,295,187 by BV 2018, 64,705 by MPM BioVentures 2018(B), L.P. ("BV 2018(B)") and 25,561 by AM BV2018. The Reporting Person disclaims beneficial ownership of the securities except to the extent of his pecuniary interest therein. Read SEC document
May 04, 2021 Filed May 6, 2021 20:20 UTC	Werewolf Therapeutics, Inc. HOWL · Entity 7244	ConversionSeries B Preferred Stock · Derivative	6,621,546	$0.00	$0.00	Disclosure SEC source: 0001209191-21-030626 · doc4.xml · derivative · entry 5 MPM BioVentures 2014, L.P. · CIK 0001609492 · 10% owner MPM BioVentures 2014 (B), L.P. · CIK 0001609493 · 10% owner MPM BioVentures 2014 LLC · CIK 0001765021 · 10% owner MPM BioVentures 2014 GP LLC · CIK 0001765091 · 10% owner Foley Todd · CIK 0001473930 · 10% owner MPM Asset Management Investors BV2014 LLC · CIK 0001609495 · 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 · 763,809 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 and Series B Preferred Stock converted into common stock on a 8.6691-for-1 basis into the number of shares of common stock shown in Column 7 without payment of further consideration upon closing of the initial public offering of the Issuer's common stock. The shares had no expiration date. F1 · derivative.exercise_date: Each share of Series A Preferred Stock and Series B Preferred Stock converted into common stock on a 8.6691-for-1 basis into the number of shares of common stock shown in Column 7 without payment of further consideration upon closing of the initial public offering of the Issuer's common stock. The shares had no expiration date. F1 · derivative.expiration_date: Each share of Series A Preferred Stock and Series B Preferred Stock converted into common stock on a 8.6691-for-1 basis into the number of shares of common stock shown in Column 7 without payment of further consideration upon closing of the initial public offering of the Issuer's common stock. The shares had no expiration date. F8 · derivative.underlying_shares: The shares were held as follows: 693,667 by BV 2014, 46,266 by BV 2014(B) and 23,876 by AM BV2014. F7 · ownership.nature: No securities held by the Reporting Persons. Read SEC document
May 04, 2021 Filed May 6, 2021 20:20 UTC	Werewolf Therapeutics, Inc. HOWL · Entity 7244	ConversionSeries A Preferred Stock · Derivative	19,925,321	$0.00	$0.00	Disclosure SEC source: 0001209191-21-030626 · doc4.xml · derivative · entry 4 MPM BioVentures 2014, L.P. · CIK 0001609492 · 10% owner MPM BioVentures 2014 (B), L.P. · CIK 0001609493 · 10% owner MPM BioVentures 2014 LLC · CIK 0001765021 · 10% owner MPM BioVentures 2014 GP LLC · CIK 0001765091 · 10% owner Foley Todd · CIK 0001473930 · 10% owner MPM Asset Management Investors BV2014 LLC · CIK 0001609495 · 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 · 2,298,430 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 and Series B Preferred Stock converted into common stock on a 8.6691-for-1 basis into the number of shares of common stock shown in Column 7 without payment of further consideration upon closing of the initial public offering of the Issuer's common stock. The shares had no expiration date. F1 · derivative.exercise_date: Each share of Series A Preferred Stock and Series B Preferred Stock converted into common stock on a 8.6691-for-1 basis into the number of shares of common stock shown in Column 7 without payment of further consideration upon closing of the initial public offering of the Issuer's common stock. The shares had no expiration date. F1 · derivative.expiration_date: Each share of Series A Preferred Stock and Series B Preferred Stock converted into common stock on a 8.6691-for-1 basis into the number of shares of common stock shown in Column 7 without payment of further consideration upon closing of the initial public offering of the Issuer's common stock. The shares had no expiration date. F6 · derivative.underlying_shares: The shares were held as follows: 2,087,358 by BV 2014, 139,224 by BV 2014(B) and 71,848 by AM BV2014. F7 · ownership.nature: No securities held by the Reporting Persons. Read SEC document
May 04, 2021 Filed May 6, 2021 20:20 UTC	Werewolf Therapeutics, Inc. HOWL · Entity 7244	PurchaseCommon Stock	125,759	$16.00	$2,012,144.00	Disclosure SEC source: 0001209191-21-030626 · doc4.xml · nonDerivative · entry 3 MPM BioVentures 2014, L.P. · CIK 0001609492 · 10% owner MPM BioVentures 2014 (B), L.P. · CIK 0001609493 · 10% owner MPM BioVentures 2014 LLC · CIK 0001765021 · 10% owner MPM BioVentures 2014 GP LLC · CIK 0001765091 · 10% owner Foley Todd · CIK 0001473930 · 10% owner MPM Asset Management Investors BV2014 LLC · CIK 0001609495 · 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: 3,187,998 F4 · shares: The shares were purchased as follows: 114,210 by BV 2014, 7,618 by BV 2014(B) and 3,931 by AM BV2014. F5 · ownership.nature: The shares are held as follows: 2,895,235 by BV 2014, 193,108 by BV 2014(B) and 99,655 by AM BV2014. Each Reporting Person disclaims beneficial ownership of the securities except to the extent of his or its pecuniary interest therein. Read SEC document
May 04, 2021 Filed May 6, 2021 20:20 UTC	Werewolf Therapeutics, Inc. HOWL · Entity 7244	ConversionCommon Stock	763,809	Not disclosed	Not disclosed	Disclosure SEC source: 0001209191-21-030626 · doc4.xml · nonDerivative · entry 2 MPM BioVentures 2014, L.P. · CIK 0001609492 · 10% owner MPM BioVentures 2014 (B), L.P. · CIK 0001609493 · 10% owner MPM BioVentures 2014 LLC · CIK 0001765021 · 10% owner MPM BioVentures 2014 GP LLC · CIK 0001765091 · 10% owner Foley Todd · CIK 0001473930 · 10% owner MPM Asset Management Investors BV2014 LLC · CIK 0001609495 · 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: 3,062,239 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 and Series B Preferred Stock converted into common stock on a 8.6691-for-1 basis into the number of shares of common stock shown in Column 7 without payment of further consideration upon closing of the initial public offering of the Issuer's common stock. The shares had no expiration date. F3 · ownership.nature: The shares are held as follows: 2,781,025 by BV 2014, 185,490 by BV 2014(B) and 95,724 by AM BV2014. Each Reporting Person disclaims beneficial ownership of the securities except to the extent of his or its pecuniary interest therein. Read SEC document
May 04, 2021 Filed May 6, 2021 20:20 UTC	Werewolf Therapeutics, Inc. HOWL · Entity 7244	ConversionCommon Stock	2,298,430	Not disclosed	Not disclosed	Disclosure SEC source: 0001209191-21-030626 · doc4.xml · nonDerivative · entry 1 MPM BioVentures 2014, L.P. · CIK 0001609492 · 10% owner MPM BioVentures 2014 (B), L.P. · CIK 0001609493 · 10% owner MPM BioVentures 2014 LLC · CIK 0001765021 · 10% owner MPM BioVentures 2014 GP LLC · CIK 0001765091 · 10% owner Foley Todd · CIK 0001473930 · 10% owner MPM Asset Management Investors BV2014 LLC · CIK 0001609495 · 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: 2,298,430 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 and Series B Preferred Stock converted into common stock on a 8.6691-for-1 basis into the number of shares of common stock shown in Column 7 without payment of further consideration upon closing of the initial public offering of the Issuer's common stock. The shares had no expiration date. F2 · ownership.nature: The shares are held as follows: 2,087,358 by MPM BioVentures 2014, L.P. ("BV 2014"), 139,224 by MPM BioVentures 2014(B), L.P. ("BV 2014(B)") and 71,848 by MPM Asset Management Investors BV2014 LLC ("AM BV2014"). MPM BioVentures 2014 GP LLC and MPM BioVentures 2014 LLC ("BV LLC") are the direct and indirect general partners of BV 2014 and BV 2014(B). BV LLC is the manager of AM BV2014. Todd Foley is a Managing Director of BV LLC. Each Reporting Persons disclaims beneficial ownership of the securities except to the extent of his or its pecuniary interest therein. Read SEC document
April 15, 2021 Filed Apr 16, 2021 00:01 UTC	Harpoon Therapeutics, Inc. HARP · Entity 11424	SaleCommon Stock	1,052	$20.49	$21,555.48	Disclosure SEC source: 0001209191-21-026881 · doc4.xml · nonDerivative · entry 5 MPM BioVentures 2014, L.P. · CIK 0001609492 · Former 10% Owner MPM ASSET MANAGEMENT LLC · CIK 0001263048 · Former 10% Owner MPM BioVentures 2014 (B), L.P. · CIK 0001609493 · Former 10% Owner MPM Asset Management Investors BV2014 LLC · CIK 0001609495 · Former 10% Owner MPM BioVentures 2014 LLC · CIK 0001765021 · Former 10% Owner MPM BioVentures 2014 GP LLC · CIK 0001765091 · Former 10% Owner Foley Todd · CIK 0001473930 · Former 10% Owner EVNIN LUKE · CIK 0001134657 · Former 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: 3,220,844 F1 · kind: Transaction effected pursuant to a plan established pursuant to Rule 10b5-1 on 3/16/2021. F2 · shares: The shares were sold by MPM Asset Management LLC ("AM LLC"). F11 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $20.15 to $20.99 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 range set forth in this footnote. F12 · ownership.nature: The shares are held as follows: 2,657,097 by BV 2014, 152,470 by BV 2014(B), 96,376 by AM BV2014 and 314,901 by AM LLC. Each Reporting Person disclaims beneficial ownership of the securities except to the extent of his or its pecuniary interest therein. Read SEC document
April 14, 2021 Filed Apr 16, 2021 00:01 UTC	Harpoon Therapeutics, Inc. HARP · Entity 11424	SaleCommon Stock	1,550	$20.83	$32,286.50	Disclosure SEC source: 0001209191-21-026881 · doc4.xml · nonDerivative · entry 4 MPM BioVentures 2014, L.P. · CIK 0001609492 · Former 10% Owner MPM ASSET MANAGEMENT LLC · CIK 0001263048 · Former 10% Owner MPM BioVentures 2014 (B), L.P. · CIK 0001609493 · Former 10% Owner MPM Asset Management Investors BV2014 LLC · CIK 0001609495 · Former 10% Owner MPM BioVentures 2014 LLC · CIK 0001765021 · Former 10% Owner MPM BioVentures 2014 GP LLC · CIK 0001765091 · Former 10% Owner Foley Todd · CIK 0001473930 · Former 10% Owner EVNIN LUKE · CIK 0001134657 · Former 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: 3,221,896 F1 · kind: Transaction effected pursuant to a plan established pursuant to Rule 10b5-1 on 3/16/2021. F2 · shares: The shares were sold by MPM Asset Management LLC ("AM LLC"). F9 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $20.52 to $21.18 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. F10 · ownership.nature: The shares are held as follows: 2,657,097 by BV 2014, 152,470 by BV 2014(B), 96,376 by AM BV2014 and 315,953 by AM LLC. Each Reporting Person disclaims beneficial ownership of the securities except to the extent of his or its pecuniary interest therein. Read SEC document
April 14, 2021 Filed Apr 16, 2021 00:01 UTC	Harpoon Therapeutics, Inc. HARP · Entity 11424	SaleCommon Stock	121	$20.06	$2,427.26	Disclosure SEC source: 0001209191-21-026881 · doc4.xml · nonDerivative · entry 3 MPM BioVentures 2014, L.P. · CIK 0001609492 · Former 10% Owner MPM ASSET MANAGEMENT LLC · CIK 0001263048 · Former 10% Owner MPM BioVentures 2014 (B), L.P. · CIK 0001609493 · Former 10% Owner MPM Asset Management Investors BV2014 LLC · CIK 0001609495 · Former 10% Owner MPM BioVentures 2014 LLC · CIK 0001765021 · Former 10% Owner MPM BioVentures 2014 GP LLC · CIK 0001765091 · Former 10% Owner Foley Todd · CIK 0001473930 · Former 10% Owner EVNIN LUKE · CIK 0001134657 · Former 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: 3,223,446 F1 · kind: Transaction effected pursuant to a plan established pursuant to Rule 10b5-1 on 3/16/2021. F2 · shares: The shares were sold by MPM Asset Management LLC ("AM LLC"). F7 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $19.44 to $20.39 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. F8 · ownership.nature: The shares are held as follows: 2,657,097 by BV 2014, 152,470 by BV 2014(B), 96,376 by AM BV2014 and 317,503 by AM LLC. Each Reporting Person disclaims beneficial ownership of the securities except to the extent of his or its pecuniary interest therein. Read SEC document
April 13, 2021 Filed Apr 16, 2021 00:01 UTC	Harpoon Therapeutics, Inc. HARP · Entity 11424	SaleCommon Stock	286	$20.08	$5,742.88	Disclosure SEC source: 0001209191-21-026881 · doc4.xml · nonDerivative · entry 2 MPM BioVentures 2014, L.P. · CIK 0001609492 · Former 10% Owner MPM ASSET MANAGEMENT LLC · CIK 0001263048 · Former 10% Owner MPM BioVentures 2014 (B), L.P. · CIK 0001609493 · Former 10% Owner MPM Asset Management Investors BV2014 LLC · CIK 0001609495 · Former 10% Owner MPM BioVentures 2014 LLC · CIK 0001765021 · Former 10% Owner MPM BioVentures 2014 GP LLC · CIK 0001765091 · Former 10% Owner Foley Todd · CIK 0001473930 · Former 10% Owner EVNIN LUKE · CIK 0001134657 · Former 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: 3,223,567 F1 · kind: Transaction effected pursuant to a plan established pursuant to Rule 10b5-1 on 3/16/2021. F2 · shares: The shares were sold by MPM Asset Management LLC ("AM LLC"). F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $19.89 to $20.50 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. F6 · ownership.nature: The shares are held as follows: 2,657,097 by BV 2014, 152,470 by BV 2014(B), 96,376 by AM BV2014 and 317,624 by AM LLC. Each Reporting Person disclaims beneficial ownership of the securities except to the extent of his or its pecuniary interest therein. Read SEC document
April 13, 2021 Filed Apr 16, 2021 00:01 UTC	Harpoon Therapeutics, Inc. HARP · Entity 11424	SaleCommon Stock	1,657	$19.35	$32,062.95	Disclosure SEC source: 0001209191-21-026881 · doc4.xml · nonDerivative · entry 1 MPM BioVentures 2014, L.P. · CIK 0001609492 · Former 10% Owner MPM ASSET MANAGEMENT LLC · CIK 0001263048 · Former 10% Owner MPM BioVentures 2014 (B), L.P. · CIK 0001609493 · Former 10% Owner MPM Asset Management Investors BV2014 LLC · CIK 0001609495 · Former 10% Owner MPM BioVentures 2014 LLC · CIK 0001765021 · Former 10% Owner MPM BioVentures 2014 GP LLC · CIK 0001765091 · Former 10% Owner Foley Todd · CIK 0001473930 · Former 10% Owner EVNIN LUKE · CIK 0001134657 · Former 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: 3,223,853 F1 · kind: Transaction effected pursuant to a plan established pursuant to Rule 10b5-1 on 3/16/2021. F2 · shares: The shares were sold by MPM Asset Management LLC ("AM LLC"). F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $18.98 to $19.88 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 held as follows: 2,657,097 by MPM BioVentures 2014, L.P. ("BV 2014"), 152,470 by MPM BioVentures 2014(B), L.P. ("BV 2014(B)"), 96,376 by MPM Asset Management Investors BV2014 LLC ("AM BV2014") and 317,910 by AM LLC. MPM BioVentures 2014 GP LLC and MPM BioVentures 2014 LLC ("BV LLC") are the direct and indirect general partners of BV 2014 and BV 2014(B). BV LLC is the manager of AM BV2014. Messrs. Evnin and Foley are the members of BV LLC and Mr. Evnin is a member of AM LLC. Each Reporting Person disclaims beneficial ownership of the securities except to the extent of his or its pecuniary interest therein. Read SEC document
April 12, 2021 Filed Apr 13, 2021 20:12 UTC	Harpoon Therapeutics, Inc. HARP · Entity 11424	SaleCommon Stock	48	$22.68	$1,088.64	Disclosure SEC source: 0001209191-21-026429 · doc4.xml · nonDerivative · entry 4 MPM BioVentures 2014, L.P. · CIK 0001609492 · 10% owner MPM ASSET MANAGEMENT LLC · CIK 0001263048 · 10% owner MPM BioVentures 2014 (B), L.P. · CIK 0001609493 · 10% owner MPM Asset Management Investors BV2014 LLC · CIK 0001609495 · 10% owner MPM BioVentures 2014 LLC · CIK 0001765021 · 10% owner MPM BioVentures 2014 GP LLC · CIK 0001765091 · 10% owner Foley Todd · CIK 0001473930 · 10% owner EVNIN LUKE · CIK 0001134657 · 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: 3,225,510 F5 · kind: Transaction effected pursuant to a plan established pursuant to Rule 10b5-1 on 3/16/2021. F6 · shares: The shares were sold by AM LLC. F11 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $22.63 to $22.72 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. F12 · ownership.nature: The shares are held as follows: 2,657,097 by BV 2014, 152,470 by BV 2014(B), 96,376 by AM BV2014 and 319,567 by AM LLC. Each Reporting Person disclaims beneficial ownership of the securities except to the extent of his or its pecuniary interest therein. Read SEC document
April 12, 2021 Filed Apr 13, 2021 20:12 UTC	Harpoon Therapeutics, Inc. HARP · Entity 11424	SaleCommon Stock	811	$21.52	$17,452.72	Disclosure SEC source: 0001209191-21-026429 · doc4.xml · nonDerivative · entry 3 MPM BioVentures 2014, L.P. · CIK 0001609492 · 10% owner MPM ASSET MANAGEMENT LLC · CIK 0001263048 · 10% owner MPM BioVentures 2014 (B), L.P. · CIK 0001609493 · 10% owner MPM Asset Management Investors BV2014 LLC · CIK 0001609495 · 10% owner MPM BioVentures 2014 LLC · CIK 0001765021 · 10% owner MPM BioVentures 2014 GP LLC · CIK 0001765091 · 10% owner Foley Todd · CIK 0001473930 · 10% owner EVNIN LUKE · CIK 0001134657 · 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: 3,225,558 F5 · kind: Transaction effected pursuant to a plan established pursuant to Rule 10b5-1 on 3/16/2021. F6 · shares: The shares were sold by AM LLC. F9 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $21.25 to $22.10 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. F10 · ownership.nature: The shares are held as follows: 2,657,097 by BV 2014, 152,470 by BV 2014(B), 96,376 by AM BV2014 and 319,615 by AM LLC. Each Reporting Person disclaims beneficial ownership of the securities except to the extent of his or its pecuniary interest therein. Read SEC document
April 12, 2021 Filed Apr 13, 2021 20:12 UTC	Harpoon Therapeutics, Inc. HARP · Entity 11424	SaleCommon Stock	1,637	$20.72	$33,918.64	Disclosure SEC source: 0001209191-21-026429 · doc4.xml · nonDerivative · entry 2 MPM BioVentures 2014, L.P. · CIK 0001609492 · 10% owner MPM ASSET MANAGEMENT LLC · CIK 0001263048 · 10% owner MPM BioVentures 2014 (B), L.P. · CIK 0001609493 · 10% owner MPM Asset Management Investors BV2014 LLC · CIK 0001609495 · 10% owner MPM BioVentures 2014 LLC · CIK 0001765021 · 10% owner MPM BioVentures 2014 GP LLC · CIK 0001765091 · 10% owner Foley Todd · CIK 0001473930 · 10% owner EVNIN LUKE · CIK 0001134657 · 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: 3,226,369 F5 · kind: Transaction effected pursuant to a plan established pursuant to Rule 10b5-1 on 3/16/2021. F6 · shares: The shares were sold by AM LLC. F7 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $20.25 to $21.24 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. F8 · ownership.nature: The shares are held as follows: 2,657,097 by BV 2014, 152,470 by BV 2014(B), 96,376 by AM BV2014 and 320,426 by AM LLC. Each Reporting Person disclaims beneficial ownership of the securities except to the extent of his or its pecuniary interest therein. Read SEC document
April 09, 2021 Filed Apr 13, 2021 20:12 UTC	Harpoon Therapeutics, Inc. HARP · Entity 11424	SaleCommon Stock	10,300	$23.67	$243,801.00	Disclosure SEC source: 0001209191-21-026429 · doc4.xml · nonDerivative · entry 1 MPM BioVentures 2014, L.P. · CIK 0001609492 · 10% owner MPM ASSET MANAGEMENT LLC · CIK 0001263048 · 10% owner MPM BioVentures 2014 (B), L.P. · CIK 0001609493 · 10% owner MPM Asset Management Investors BV2014 LLC · CIK 0001609495 · 10% owner MPM BioVentures 2014 LLC · CIK 0001765021 · 10% owner MPM BioVentures 2014 GP LLC · CIK 0001765091 · 10% owner Foley Todd · CIK 0001473930 · 10% owner EVNIN LUKE · CIK 0001134657 · 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: 3,228,006 F1 · kind: Transaction effected pursuant to a plan established pursuant to Rule 10b5-1 on 12/21/2020. F2 · shares: The shares were sold as follows: 9,939 by MPM BioVentures 2014, L.P. ("BV 2014") and 361 by MPM Asset Management Investors BV2014 LLC ("AM BV2014"). F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $23.45 to $24.20 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 held as follows: 2,657,097 by BV 2014, 152,470 by MPM BioVentures 2014(B), L.P. ("BV 2014(B)"), 96,376 by AM BV2014 and 322,063 by MPM Asset Management LLC ("AM LLC"). MPM BioVentures 2014 GP LLC and MPM BioVentures 2014 LLC ("BV LLC") are the direct and indirect general partners of BV 2014 and BV 2014(B). BV LLC is the manager of AM BV2014. Messrs. Evnin and Foley are the members of BV LLC and Mr. Evnin is a member of AM LLC. Each Reporting Person disclaims beneficial ownership of the securities except to the extent of his or its pecuniary interest therein. Read SEC document
April 09, 2021 Filed Apr 13, 2021 20:16 UTC	iTeos Therapeutics, Inc. ITOS · Entity 75965	SaleCommon Stock	119	$29.99	$3,568.81	Disclosure SEC source: 0001209191-21-026437 · doc4.xml · nonDerivative · entry 1 MPM BioVentures 2014, L.P. · CIK 0001609492 · 10% owner EVNIN LUKE · CIK 0001134657 · 10% owner Foley Todd · CIK 0001473930 · 10% owner MPM BioVentures 2014 (B), L.P. · CIK 0001609493 · 10% owner MPM Asset Management Investors BV2014 LLC · CIK 0001609495 · 10% owner MPM BioVentures 2014 LLC · CIK 0001765021 · 10% owner MPM BioVentures 2014 GP LLC · CIK 0001765091 · 10% owner MPM BIOVENTURES 2018 (B), L.P. · CIK 0001729504 · 10% owner MPM ASSET MANAGEMENT INVESTORS BV2018 LLC · CIK 0001734817 · 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: 3,665,787 F1 · kind: Transaction effected pursuant to a plan established pursuant to Rule 10b5-1. F2 · shares: The shares were sold as follows: 71 by MPM BioVentures 2014, L.P. ("BV 2014"), 2 by MPM Asset Management Investors BV2014 LLC ("AM BV2014"), 45 by MPM BioVentures 2018, L.P. ("BV 2018") and 1 by MPM Asset Management Investors BV2018 LLC ("AM BV2018"). MPM BioVentures 2014 GP LLC and MPM BioVentures 2014 LLC ("BV 2014 LLC") are the direct and indirect general partners of BV 2014 and BV 2014(B). BV 2014 LLC is the manager of AM BV2014. MPM BioVentures 2018 GP LLC and MPM BioVentures 2018 LLC ("BV 2018 LLC") are the direct and indirect general partners of BV 2018 and BV 2018(B). BV 2018 LLC is the manager of AM BV2018. Messrs. Evnin and Foley are managing directors of BV 2014 LLC and BV 2018 LLC. F3 · ownership.nature: The shares are held as follows: 2,068,870 by BV 2014, 128,561 by MPM BioVentures 2014(B), L.P. ("BV 2014(B)"), 71,210 by AM BV2014, 1,306,654 by BV 2018, 64,705 by MPM BioVentures 2018(B), L.P. ("BV 2018(B)") and 25,787 by AM BV2018. The Reporting Person disclaims beneficial ownership of the securities except to the extent of his pecuniary interest therein. Read SEC document
April 08, 2021 Filed Apr 9, 2021 20:10 UTC	iTeos Therapeutics, Inc. ITOS · Entity 75965	SaleCommon Stock	247	$31.01	$7,659.47	Disclosure SEC source: 0001209191-21-026213 · doc4.xml · nonDerivative · entry 6 MPM BioVentures 2014, L.P. · CIK 0001609492 · 10% owner EVNIN LUKE · CIK 0001134657 · 10% owner Foley Todd · CIK 0001473930 · 10% owner MPM BioVentures 2014 (B), L.P. · CIK 0001609493 · 10% owner MPM Asset Management Investors BV2014 LLC · CIK 0001609495 · 10% owner MPM BioVentures 2014 LLC · CIK 0001765021 · 10% owner MPM BioVentures 2014 GP LLC · CIK 0001765091 · 10% owner MPM BIOVENTURES 2018 (B), L.P. · CIK 0001729504 · 10% owner MPM ASSET MANAGEMENT INVESTORS BV2018 LLC · CIK 0001734817 · 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: 3,655,906 F1 · kind: Transaction effected pursuant to a plan established pursuant to Rule 10b5-1. F17 · shares: The shares were sold as follows: 147 by BV 2014, 5 by AM BV2014, 93 by BV 2018 and 2 by AM BV2018. F18 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $30.945 to $31.19 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. F19 · ownership.nature: The shares are held as follows: 2,068,941 by BV 2014, 128,561 by BV 2014(B), 71,212 by AM BV2014, 1,306,699 by BV 2018, 64,705 by BV 2018(B) and 25,788 by AM BV2018. The Reporting Person disclaims beneficial ownership of the securities except to the extent of his pecuniary interest therein. Read SEC document
April 08, 2021 Filed Apr 9, 2021 20:10 UTC	iTeos Therapeutics, Inc. ITOS · Entity 75965	SaleCommon Stock	19,057	$30.51	$581,429.07	Disclosure SEC source: 0001209191-21-026213 · doc4.xml · nonDerivative · entry 5 MPM BioVentures 2014, L.P. · CIK 0001609492 · 10% owner EVNIN LUKE · CIK 0001134657 · 10% owner Foley Todd · CIK 0001473930 · 10% owner MPM BioVentures 2014 (B), L.P. · CIK 0001609493 · 10% owner MPM Asset Management Investors BV2014 LLC · CIK 0001609495 · 10% owner MPM BioVentures 2014 LLC · CIK 0001765021 · 10% owner MPM BioVentures 2014 GP LLC · CIK 0001765091 · 10% owner MPM BIOVENTURES 2018 (B), L.P. · CIK 0001729504 · 10% owner MPM ASSET MANAGEMENT INVESTORS BV2018 LLC · CIK 0001734817 · 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: 3,666,153 F1 · kind: Transaction effected pursuant to a plan established pursuant to Rule 10b5-1. F14 · shares: The shares were sold as follows: 11,354 by BV 2014, 391 by AM BV2014, 7,171 by BV 2018 and 141 by AM BV2018. F15 · 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 $30.92 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. F16 · ownership.nature: The shares are held as follows: 2,069,088 by BV 2014, 128,561 by BV 2014(B), 71,217 by AM BV2014, 1,306,792 by BV 2018, 64,705 by BV 2018(B) and 25,790 by AM BV2018. The Reporting Person disclaims beneficial ownership of the securities except to the extent of his pecuniary interest therein. Read SEC document
April 07, 2021 Filed Apr 9, 2021 20:10 UTC	iTeos Therapeutics, Inc. ITOS · Entity 75965	OtherCommon Stock	15,670	$0.00	$0.00	Disclosure SEC source: 0001209191-21-026213 · doc4.xml · nonDerivative · entry 4 MPM BioVentures 2014, L.P. · CIK 0001609492 · 10% owner EVNIN LUKE · CIK 0001134657 · 10% owner Foley Todd · CIK 0001473930 · 10% owner MPM BioVentures 2014 (B), L.P. · CIK 0001609493 · 10% owner MPM Asset Management Investors BV2014 LLC · CIK 0001609495 · 10% owner MPM BioVentures 2014 LLC · CIK 0001765021 · 10% owner MPM BioVentures 2014 GP LLC · CIK 0001765091 · 10% owner MPM BIOVENTURES 2018 (B), L.P. · CIK 0001729504 · 10% owner MPM ASSET MANAGEMENT INVESTORS BV2018 LLC · CIK 0001734817 · 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: 3,685,210 F11 · kind: Represents a pro rata in-kind distribution from BV 2014(B) and BV 2018(B) to its respectve limited partners for no consideration. F12 · shares: The shares were distributed as follows: 10,424 by BV 2014(B) and 5,246 by AM BV 2018(B). F13 · ownership.nature: The shares are held as follows: 2,080,442 by BV 2014, 128,561 by BV 2014(B), 71,608 by AM BV2014, 1,313,963 by BV 2018, 64,705 by BV 2018(B) and 25,931 by AM BV2018. The Reporting Person disclaims beneficial ownership of the securities except to the extent of his pecuniary interest therein. Read SEC document
April 07, 2021 Filed Apr 9, 2021 20:10 UTC	iTeos Therapeutics, Inc. ITOS · Entity 75965	SaleCommon Stock	777	$33.84	$26,293.68	Disclosure SEC source: 0001209191-21-026213 · doc4.xml · nonDerivative · entry 3 MPM BioVentures 2014, L.P. · CIK 0001609492 · 10% owner EVNIN LUKE · CIK 0001134657 · 10% owner Foley Todd · CIK 0001473930 · 10% owner MPM BioVentures 2014 (B), L.P. · CIK 0001609493 · 10% owner MPM Asset Management Investors BV2014 LLC · CIK 0001609495 · 10% owner MPM BioVentures 2014 LLC · CIK 0001765021 · 10% owner MPM BioVentures 2014 GP LLC · CIK 0001765091 · 10% owner MPM BIOVENTURES 2018 (B), L.P. · CIK 0001729504 · 10% owner MPM ASSET MANAGEMENT INVESTORS BV2018 LLC · CIK 0001734817 · 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: 3,700,880 F1 · kind: Transaction effected pursuant to a plan established pursuant to Rule 10b5-1. F8 · shares: The shares were sold as follows: 463 by BV 2014, 16 by AM BV2014, 292 by BV 2018 and 6 by AM BV2018. F9 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $33.50 to $34.25 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. F10 · ownership.nature: The shares are held as follows: 2,080,442 by BV 2014, 138,985 by BV 2014(B), 71,608 by AM BV2014, 1,313,963 by BV 2018, 69,951 by BV 2018(B) and 25,931 by AM BV2018. The Reporting Person disclaims beneficial ownership of the securities except to the extent of his pecuniary interest therein. Read SEC document
April 07, 2021 Filed Apr 9, 2021 20:10 UTC	iTeos Therapeutics, Inc. ITOS · Entity 75965	SaleCommon Stock	1,842	$32.84	$60,491.28	Disclosure SEC source: 0001209191-21-026213 · doc4.xml · nonDerivative · entry 2 MPM BioVentures 2014, L.P. · CIK 0001609492 · 10% owner EVNIN LUKE · CIK 0001134657 · 10% owner Foley Todd · CIK 0001473930 · 10% owner MPM BioVentures 2014 (B), L.P. · CIK 0001609493 · 10% owner MPM Asset Management Investors BV2014 LLC · CIK 0001609495 · 10% owner MPM BioVentures 2014 LLC · CIK 0001765021 · 10% owner MPM BioVentures 2014 GP LLC · CIK 0001765091 · 10% owner MPM BIOVENTURES 2018 (B), L.P. · CIK 0001729504 · 10% owner MPM ASSET MANAGEMENT INVESTORS BV2018 LLC · CIK 0001734817 · 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: 3,701,657 F1 · kind: Transaction effected pursuant to a plan established pursuant to Rule 10b5-1. F5 · shares: The shares were sold as follows: 1,097 by BV 2014, 38 by AM BV2014, 693 by BV 2018 and 14 by AM BV2018. F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $32.50 to $33.265 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. F7 · ownership.nature: The shares are held as follows: 2,080,905 by BV 2014, 138,985 by BV 2014(B), 71,624 by AM BV2014, 1,314,255 by BV 2018, 69,951 by BV 2018(B) and 25,937 by AM BV2018. The Reporting Person disclaims beneficial ownership of the securities except to the extent of his pecuniary interest therein. Read SEC document
April 07, 2021 Filed Apr 9, 2021 20:10 UTC	iTeos Therapeutics, Inc. ITOS · Entity 75965	SaleCommon Stock	3,164	$32.07	$101,469.48	Disclosure SEC source: 0001209191-21-026213 · doc4.xml · nonDerivative · entry 1 MPM BioVentures 2014, L.P. · CIK 0001609492 · 10% owner EVNIN LUKE · CIK 0001134657 · 10% owner Foley Todd · CIK 0001473930 · 10% owner MPM BioVentures 2014 (B), L.P. · CIK 0001609493 · 10% owner MPM Asset Management Investors BV2014 LLC · CIK 0001609495 · 10% owner MPM BioVentures 2014 LLC · CIK 0001765021 · 10% owner MPM BioVentures 2014 GP LLC · CIK 0001765091 · 10% owner MPM BIOVENTURES 2018 (B), L.P. · CIK 0001729504 · 10% owner MPM ASSET MANAGEMENT INVESTORS BV2018 LLC · CIK 0001734817 · 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: 3,703,499 F1 · kind: Transaction effected pursuant to a plan established pursuant to Rule 10b5-1. F2 · shares: The shares were sold as follows: 1,885 by MPM BioVentures 2014, L.P. ("BV 2014"), 65 by MPM Asset Management Investors BV2014 LLC ("AM BV2014"), 1,191 by MPM BioVentures 2018, L.P. ("BV 2018") and 23 by MPM Asset Management Investors BV2018 LLC ("AM BV2018"). MPM BioVentures 2014 GP LLC and MPM BioVentures 2014 LLC ("BV 2014 LLC") are the direct and indirect general partners of BV 2014 and BV 2014(B). BV 2014 LLC is the manager of AM BV2014. MPM BioVentures 2018 GP LLC and MPM BioVentures 2018 LLC ("BV 2018 LLC") are the direct and indirect general partners of BV 2018 and BV 2018(B). BV 2018 LLC is the manager of AM BV2018. Messrs. Evnin and Foley are managing directors of BV 2014 LLC and BV 2018 LLC. F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $31.50 to $32.42 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 held as follows: 2,082,002 by BV 2014, 138,985 by MPM BioVentures 2014(B), L.P. ("BV 2014(B)"), 71,662 by AM BV2014, 1,314,948 by BV 2018, 69,951 by MPM BioVentures 2018(B), L.P. ("BV 2018(B)") and 25,951 by AM BV2018. The Reporting Person disclaims beneficial ownership of the securities except to the extent of his pecuniary interest therein. Read SEC document
February 10, 2021 Filed Feb 12, 2021 22:03 UTC	Harpoon Therapeutics, Inc. HARP · Entity 11424	SaleCommon Stock	183,051	$20.00	$3,661,020.00	Disclosure SEC source: 0001209191-21-010209 · doc4.xml · nonDerivative · entry 1 MPM BioVentures 2014, L.P. · CIK 0001609492 · 10% owner MPM ASSET MANAGEMENT LLC · CIK 0001263048 · 10% owner MPM BioVentures 2014 (B), L.P. · CIK 0001609493 · 10% owner MPM Asset Management Investors BV2014 LLC · CIK 0001609495 · 10% owner MPM BioVentures 2014 LLC · CIK 0001765021 · 10% owner MPM BioVentures 2014 GP LLC · CIK 0001765091 · 10% owner Foley Todd · CIK 0001473930 · 10% owner GADICKE ANSBERT · CIK 0001134655 · 10% owner EVNIN LUKE · CIK 0001134657 · 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: 3,238,306 F1 · kind: Transaction effected pursuant to a plan established pursuant to Rule 10b5-1 on 12/21/2020. F2 · shares: The shares were sold as follows: 176,644 by MPM BioVentures 2014, L.P. ("BV 2014") and 6,407 by MPM Asset Management Investors BV2014 LLC ("AM BV2014"). F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $20.00 to $20.32 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 held as follows: 2,667,036 by BV 2014, 152,470 by MPM BioVentures 2014(B), L.P. ("BV 2014(B)"), 96,737 by AM BV2014 and 322,063 by MPM Asset Management LLC ("AM LLC"). MPM BioVentures 2014 GP LLC and MPM BioVentures 2014 LLC ("BV LLC") are the direct and indirect general partners of BV 2014 and BV 2014(B). BV LLC is the manager of AM BV2014. Luke Evnin, Ansbert Gadicke and Todd Foley are the members of BV LLC and Luke Evnin and Anbert Gadicke are the members of AM LLC. F5 · ownership.nature: Each Reporting Person disclaims beneficial ownership of the securities except to the extent of his or its pecuniary interest therein. Read SEC document
February 09, 2021 Filed Feb 9, 2021 23:14 UTC	Harpoon Therapeutics, Inc. HARP · Entity 11424	SaleCommon Stock	9,400	$20.25	$190,350.00	Disclosure SEC source: 0001209191-21-008935 · doc4.xml · nonDerivative · entry 3 MPM BioVentures 2014, L.P. · CIK 0001609492 · 10% owner MPM ASSET MANAGEMENT LLC · CIK 0001263048 · 10% owner MPM BioVentures 2014 (B), L.P. · CIK 0001609493 · 10% owner MPM Asset Management Investors BV2014 LLC · CIK 0001609495 · 10% owner MPM BioVentures 2014 LLC · CIK 0001765021 · 10% owner MPM BioVentures 2014 GP LLC · CIK 0001765091 · 10% owner Foley Todd · CIK 0001473930 · 10% owner GADICKE ANSBERT · CIK 0001134655 · 10% owner EVNIN LUKE · CIK 0001134657 · 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: 3,421,357 F1 · kind: Transaction effected pursuant to a plan established pursuant to Rule 10b5-1 on 12/21/2020. F9 · shares: The shares were sold as follows: 9,071 by BV 2014 and 329 by AM BV2014. F10 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $20.00 to $20.54 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. F5 · ownership.nature: Each Reporting Person disclaims beneficial ownership of the securities except to the extent of his or its pecuniary interest therein. F11 · ownership.nature: The shares are held as follows: 2,843,680 by BV 2014, 152,470 by BV 2014(B), 103,144 by AM BV2014 and 322,063 by AM LLC. MPM BioVentures 2014 GP LLC and BV LLC are the direct and indirect general partners of BV 2014 and BV 2014(B). BV LLC is the manager of AM BV2014. Luke Evnin, Ansbert Gadicke and Todd Foley are the members of BV LLC and Luke Evnin and Anbert Gadicke are the members of AM LLC. Read SEC document
February 08, 2021 Filed Feb 9, 2021 23:14 UTC	Harpoon Therapeutics, Inc. HARP · Entity 11424	SaleCommon Stock	72,128	$20.04	$1,445,445.12	Disclosure SEC source: 0001209191-21-008935 · doc4.xml · nonDerivative · entry 2 MPM BioVentures 2014, L.P. · CIK 0001609492 · 10% owner MPM ASSET MANAGEMENT LLC · CIK 0001263048 · 10% owner MPM BioVentures 2014 (B), L.P. · CIK 0001609493 · 10% owner MPM Asset Management Investors BV2014 LLC · CIK 0001609495 · 10% owner MPM BioVentures 2014 LLC · CIK 0001765021 · 10% owner MPM BioVentures 2014 GP LLC · CIK 0001765091 · 10% owner Foley Todd · CIK 0001473930 · 10% owner GADICKE ANSBERT · CIK 0001134655 · 10% owner EVNIN LUKE · CIK 0001134657 · 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: 3,430,757 F1 · kind: Transaction effected pursuant to a plan established pursuant to Rule 10b5-1 on 12/21/2020. F6 · shares: The shares were sold as follows: 69,604 by BV 2014 and 2,524 by AM BV2014. F7 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $19.95 to $20.28 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. F5 · ownership.nature: Each Reporting Person disclaims beneficial ownership of the securities except to the extent of his or its pecuniary interest therein. F8 · ownership.nature: The shares are held as follows: 2,852,751 by BV 2014, 152,470 by BV 2014(B), 103,473 by AM BV2014 and 322,063 by AM LLC. MPM BioVentures 2014 GP LLC and BV LLC are the direct and indirect general partners of BV 2014 and BV 2014(B). BV LLC is the manager of AM BV2014. Luke Evnin, Ansbert Gadicke and Todd Foley are the members of BV LLC and Luke Evnin and Anbert Gadicke are the members of AM LLC. Read SEC document
February 05, 2021 Filed Feb 9, 2021 23:14 UTC	Harpoon Therapeutics, Inc. HARP · Entity 11424	SaleCommon Stock	10,172	$20.01	$203,541.72	Disclosure SEC source: 0001209191-21-008935 · doc4.xml · nonDerivative · entry 1 MPM BioVentures 2014, L.P. · CIK 0001609492 · 10% owner MPM ASSET MANAGEMENT LLC · CIK 0001263048 · 10% owner MPM BioVentures 2014 (B), L.P. · CIK 0001609493 · 10% owner MPM Asset Management Investors BV2014 LLC · CIK 0001609495 · 10% owner MPM BioVentures 2014 LLC · CIK 0001765021 · 10% owner MPM BioVentures 2014 GP LLC · CIK 0001765091 · 10% owner Foley Todd · CIK 0001473930 · 10% owner GADICKE ANSBERT · CIK 0001134655 · 10% owner EVNIN LUKE · CIK 0001134657 · 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: 3,502,885 F1 · kind: Transaction effected pursuant to a plan established pursuant to Rule 10b5-1 on 12/21/2020. F2 · shares: The shares were sold as follows: 9,816 by MPM BioVentures 2014, L.P. ("BV 2014") and 356 by MPM Asset Management Investors BV2014 LLC ("AM BV2014"). F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $19.96 to $20.11 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 held as follows: 2,922,355 by BV 2014, 152,470 by MPM BioVentures 2014(B), L.P. ("BV 2014(B)"), 105,997 by AM BV2014 and 322,063 by MPM Asset Management LLC ("AM LLC"). MPM BioVentures 2014 GP LLC and MPM BioVentures 2014 LLC ("BV LLC") are the direct and indirect general partners of BV 2014 and BV 2014(B). BV LLC is the manager of AM BV2014. Luke Evnin, Ansbert Gadicke and Todd Foley are the members of BV LLC and Luke Evnin and Anbert Gadicke are the members of AM LLC. F5 · ownership.nature: Each Reporting Person disclaims beneficial ownership of the securities except to the extent of his or its pecuniary interest therein. Read SEC document
February 04, 2021 Filed Feb 5, 2021 00:30 UTC	Harpoon Therapeutics, Inc. HARP · Entity 11424	SaleCommon Stock	29,730	$20.37	$605,600.10	Disclosure SEC source: 0001209191-21-007900 · doc4.xml · nonDerivative · entry 3 MPM BioVentures 2014, L.P. · CIK 0001609492 · 10% owner MPM ASSET MANAGEMENT LLC · CIK 0001263048 · 10% owner MPM BioVentures 2014 (B), L.P. · CIK 0001609493 · 10% owner MPM Asset Management Investors BV2014 LLC · CIK 0001609495 · 10% owner MPM BioVentures 2014 LLC · CIK 0001765021 · 10% owner MPM BioVentures 2014 GP LLC · CIK 0001765091 · 10% owner Foley Todd · CIK 0001473930 · 10% owner GADICKE ANSBERT · CIK 0001134655 · 10% owner EVNIN LUKE · CIK 0001134657 · 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: 3,513,057 F1 · kind: Transaction effected pursuant to a plan established pursuant to Rule 10b5-1 on 12/21/2020. F9 · shares: The shares were sold as follows: 28,689 by BV 2014 and 1,041 by AM BV2014. F10 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $20.00 to $20.83 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. F5 · ownership.nature: Each Reporting Person disclaims beneficial ownership of the securities except to the extent of his or its pecuniary interest therein. F11 · ownership.nature: The shares are held as follows: 2,932,171 by BV 2014, 152,470 by BV 2014(B), 106,353 by AM BV2014 and 322,063 by AM LLC. MPM BioVentures 2014 GP LLC and BV LLC are the direct and indirect general partners of BV 2014 and BV 2014(B). BV LLC is the manager of AM BV2014. Luke Evnin, Ansbert Gadicke and Todd Foley are the members of BV LLC and Luke Evnin and Anbert Gadicke are the members of AM LLC. Read SEC document
February 03, 2021 Filed Feb 5, 2021 00:30 UTC	Harpoon Therapeutics, Inc. HARP · Entity 11424	SaleCommon Stock	41,922	$20.21	$847,243.62	Disclosure SEC source: 0001209191-21-007900 · doc4.xml · nonDerivative · entry 2 MPM BioVentures 2014, L.P. · CIK 0001609492 · 10% owner MPM ASSET MANAGEMENT LLC · CIK 0001263048 · 10% owner MPM BioVentures 2014 (B), L.P. · CIK 0001609493 · 10% owner MPM Asset Management Investors BV2014 LLC · CIK 0001609495 · 10% owner MPM BioVentures 2014 LLC · CIK 0001765021 · 10% owner MPM BioVentures 2014 GP LLC · CIK 0001765091 · 10% owner Foley Todd · CIK 0001473930 · 10% owner GADICKE ANSBERT · CIK 0001134655 · 10% owner EVNIN LUKE · CIK 0001134657 · 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: 3,542,787 F1 · kind: Transaction effected pursuant to a plan established pursuant to Rule 10b5-1 on 12/21/2020. F6 · shares: The shares were sold as follows: 40,455 by BV 2014 and 1,467 by AM BV2014. F7 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $20.02 to $20.56 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. F5 · ownership.nature: Each Reporting Person disclaims beneficial ownership of the securities except to the extent of his or its pecuniary interest therein. F8 · ownership.nature: The shares are held as follows: 2,960,860 by BV 2014, 152,470 by BV 2014(B), 107,394 by AM BV2014 and 322,063 by AM LLC. MPM BioVentures 2014 GP LLC and BV LLC are the direct and indirect general partners of BV 2014 and BV 2014(B). BV LLC is the manager of AM BV2014. Luke Evnin, Ansbert Gadicke and Todd Foley are the members of BV LLC and Luke Evnin and Anbert Gadicke are the members of AM LLC. Read SEC document
February 02, 2021 Filed Feb 5, 2021 00:30 UTC	Harpoon Therapeutics, Inc. HARP · Entity 11424	SaleCommon Stock	48,421	$20.13	$974,714.73	Disclosure SEC source: 0001209191-21-007900 · doc4.xml · nonDerivative · entry 1 MPM BioVentures 2014, L.P. · CIK 0001609492 · 10% owner MPM ASSET MANAGEMENT LLC · CIK 0001263048 · 10% owner MPM BioVentures 2014 (B), L.P. · CIK 0001609493 · 10% owner MPM Asset Management Investors BV2014 LLC · CIK 0001609495 · 10% owner MPM BioVentures 2014 LLC · CIK 0001765021 · 10% owner MPM BioVentures 2014 GP LLC · CIK 0001765091 · 10% owner Foley Todd · CIK 0001473930 · 10% owner GADICKE ANSBERT · CIK 0001134655 · 10% owner EVNIN LUKE · CIK 0001134657 · 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: 3,584,709 F1 · kind: Transaction effected pursuant to a plan established pursuant to Rule 10b5-1 on 12/21/2020. F2 · shares: The shares were sold as follows: 46,726 by MPM BioVentures 2014, L.P. ("BV 2014") and 1,695 by MPM Asset Management Investors BV2014 LLC ("AM BV2014"). F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $20.00 to $20.63 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 held as follows: 3,001,315 by BV 2014, 152,470 by MPM BioVentures 2014(B), L.P. ("BV 2014(B)"), 108,861 by AM BV2014 and 322,063 by MPM Asset Management LLC ("AM LLC"). MPM BioVentures 2014 GP LLC and MPM BioVentures 2014 LLC ("BV LLC") are the direct and indirect general partners of BV 2014 and BV 2014(B). BV LLC is the manager of AM BV2014. Luke Evnin, Ansbert Gadicke and Todd Foley are the members of BV LLC and Luke Evnin and Anbert Gadicke are the members of AM LLC. F5 · ownership.nature: Each Reporting Person disclaims beneficial ownership of the securities except to the extent of his or its pecuniary interest therein. Read SEC document
January 27, 2021 Filed Jan 28, 2021 01:35 UTC	Harpoon Therapeutics, Inc. HARP · Entity 11424	SaleCommon Stock	706,825	$20.00	$14,136,500.00	Disclosure SEC source: 0001209191-21-005787 · doc4.xml · nonDerivative · entry 3 MPM BioVentures 2014, L.P. · CIK 0001609492 · 10% owner MPM ASSET MANAGEMENT LLC · CIK 0001263048 · 10% owner MPM BioVentures 2014 (B), L.P. · CIK 0001609493 · 10% owner MPM Asset Management Investors BV2014 LLC · CIK 0001609495 · 10% owner MPM BioVentures 2014 LLC · CIK 0001765021 · 10% owner MPM BioVentures 2014 GP LLC · CIK 0001765091 · 10% owner Foley Todd · CIK 0001473930 · 10% owner GADICKE ANSBERT · CIK 0001134655 · 10% owner EVNIN LUKE · CIK 0001134657 · 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: 3,633,130 F1 · kind: Transaction effected pursuant to a plan established pursuant to Rule 10b5-1 on 12/21/2020. F9 · shares: The shares were sold as follows: 682,084 by BV 2014 and 24,741 by AM BV2014. F5 · ownership.nature: Each Reporting Person disclaims beneficial ownership of the securities except to the extent of his or its pecuniary interest therein. F10 · ownership.nature: The shares are held as follows: 3,048,041 by BV 2014, 152,470 by BV 2014(B), 110,556 by AM BV2014 and 322,063 by AM LLC. MPM BioVentures 2014 GP LLC and BV LLC are the direct and indirect general partners of BV 2014 and BV 2014(B). BV LLC is the manager of AM BV2014. Luke Evnin, Ansbert Gadicke and Todd Foley are the members of BV LLC and Luke Evnin and Anbert Gadicke are the members of AM LLC. 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.