Investor MPM BioVentures 2014, L.P.
13D/G Filings

This page shows a list of all the recent 13D/G filings made by MPM BioVentures 2014, L.P. . Schedule 13D is commonly referred to as a “beneficial ownership report.” The term "beneficial owner" is defined under SEC rules. It includes any person who directly or indirectly shares voting power or investment power (the power to sell the security).

When a person or group of persons acquires beneficial ownership of more than 5% of a voting class of a company’s equity securities, they are required to file a Schedule 13D within ten days after the purchase. Click the link icon to see the full transaction history.

Date Form Target Prev
Shares
Current
Shares
Change
(Percent)
Ownership
(Percent)
Change
(Percent)
2025-05-15 13D/A ITOS / iTeos Therapeutics, Inc. 4,730,197 1,803,996
2025-01-31 13D/A RPTX / Repare Therapeutics Inc. 1,941,242
2025-01-15 13D/A RPTX / Repare Therapeutics Inc. 2,149,415
2025-01-06 13D/A RPTX / Repare Therapeutics Inc. 2,658,532
2024-12-26 13D/A RPTX / Repare Therapeutics Inc. 3,882,485 3,300,856
2024-02-12 13D/A HARP / Harpoon Therapeutics, Inc. 632,806
2021-12-10 13D/A ITOS / iTeos Therapeutics, Inc. 5,137,214 4,730,197
2021-11-12 13D TRDA / Entrada Therapeutics, Inc. 4,427,092
2021-10-19 13D/A ITOS / iTeos Therapeutics, Inc. 5,576,212 5,137,214
2021-09-21 13D/A ITOS / iTeos Therapeutics, Inc. 6,062,220 5,576,212
2021-07-21 13D/A RPTX / Repare Therapeutics Inc. 4,279,231 3,882,485
2021-05-25 13D/A RPTX / Repare Therapeutics Inc. 4,672,838 4,279,231
2021-05-14 13D HOWL / Werewolf Therapeutics, Inc. 6,731,087
2021-05-06 13D/A HARP / Harpoon Therapeutics, Inc. 7,136,728 6,561,458
2021-03-23 13D/A RPTX / Repare Therapeutics Inc. 4,672,838 4,672,838
2021-03-23 13D/A RPTX / Repare Therapeutics Inc. 5,392,109 4,672,838
2021-02-16 13D/A HARP / Harpoon Therapeutics, Inc. 8,422,847 7,136,728
2020-10-21 13D ONCR / Oncorus, Inc. 5,296,279
2020-08-10 13D ITOS / iTeos Therapeutics, Inc. 6,062,220 6,062,220
2020-08-07 13D ITOS / iTeos Therapeutics, Inc. 6,062,220
2020-07-06 13D RPTX / Repare Therapeutics Inc. 5,392,109
2019-03-04 13D TCRR / Tcr2 Therapeutics Inc 7,600,116
2019-02-22 13D HARP / Harpoon Therapeutics, Inc. 8,422,847