MPM BioVentures 2014, L.P. has filed 35 insider transactions across 3 companies since December 2024.
Most recent transaction: a sale of 83230 shares of Werewolf Therapeutics, Inc. ($HOWL) on December 04, 2025.
Activity breakdown: 0 open-market purchases and 32 sales.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dec. 4, 2025 | Werewolf Therapeutics, Inc. | $HOWL | MPM BioVentures 2014, L.P. | Not found | S | Common Stock | 83230 | $0.97 | 4,784,111.0000 | 48,540,200 | 1.71% | 0.17% |
| Dec. 3, 2025 | Werewolf Therapeutics, Inc. | $HOWL | MPM BioVentures 2014, L.P. | Not found | S | Common Stock | 57225 | $0.87 | 4,867,341.0000 | 48,540,200 | 1.16% | 0.12% |
| Dec. 2, 2025 | Werewolf Therapeutics, Inc. | $HOWL | MPM BioVentures 2014, L.P. | Not found | S | Common Stock | 59277 | $0.89 | 4,924,566.0000 | 48,540,200 | 1.19% | 0.12% |
| Nov. 26, 2025 | Werewolf Therapeutics, Inc. | $HOWL | MPM BioVentures 2014, L.P. | Not found | S | Common Stock | 60733 | $0.98 | 5,065,037.0000 | 48,540,200 | 1.18% | 0.13% |
| Dec. 1, 2025 | Werewolf Therapeutics, Inc. | $HOWL | MPM BioVentures 2014, L.P. | Not found | S | Common Stock | 60917 | $0.94 | 4,983,843.0000 | 48,540,200 | 1.21% | 0.13% |
| Nov. 28, 2025 | Werewolf Therapeutics, Inc. | $HOWL | MPM BioVentures 2014, L.P. | Not found | S | Common Stock | 20277 | $0.99 | 5,044,760.0000 | 48,540,200 | 0.40% | 0.04% |
| Nov. 24, 2025 | Werewolf Therapeutics, Inc. | $HOWL | MPM BioVentures 2014, L.P. | Not found | S | Common Stock | 88802 | $0.98 | 5,168,303.0000 | 48,540,200 | 1.69% | 0.18% |
| Nov. 25, 2025 | Werewolf Therapeutics, Inc. | $HOWL | MPM BioVentures 2014, L.P. | Not found | S | Common Stock | 42533 | $0.92 | 5,125,770.0000 | 48,540,200 | 0.82% | 0.09% |
| Nov. 21, 2025 | Werewolf Therapeutics, Inc. | $HOWL | MPM BioVentures 2014, L.P. | Not found | S | Common Stock | 64331 | $0.83 | 5,257,105.0000 | 48,540,200 | 1.21% | 0.13% |
| Nov. 19, 2025 | Werewolf Therapeutics, Inc. | $HOWL | MPM BioVentures 2014, L.P. | Not found | S | Common Stock | 66324 | $0.94 | 5,362,588.0000 | 48,540,200 | 1.22% | 0.14% |
| Nov. 20, 2025 | Werewolf Therapeutics, Inc. | $HOWL | MPM BioVentures 2014, L.P. | Not found | S | Common Stock | 41152 | $0.89 | 5,321,436.0000 | 48,540,200 | 0.77% | 0.08% |
| Nov. 18, 2025 | Werewolf Therapeutics, Inc. | $HOWL | MPM BioVentures 2014, L.P. | Not found | S | Common Stock | 52627 | $0.93 | 5,428,912.0000 | 48,540,200 | 0.96% | 0.11% |
| Nov. 14, 2025 | Werewolf Therapeutics, Inc. | $HOWL | MPM BioVentures 2014, L.P. | Not found | S | Common Stock | 61640 | $0.93 | 5,538,600.0000 | 48,540,200 | 1.10% | 0.13% |
| Nov. 17, 2025 | Werewolf Therapeutics, Inc. | $HOWL | MPM BioVentures 2014, L.P. | Not found | S | Common Stock | 57061 | $0.95 | 5,481,539.0000 | 48,540,200 | 1.03% | 0.12% |
| Nov. 13, 2025 | Werewolf Therapeutics, Inc. | $HOWL | MPM BioVentures 2014, L.P. | Not found | S | Common Stock | 90951 | $0.98 | 5,600,240.0000 | 48,540,200 | 1.60% | 0.19% |
| Nov. 10, 2025 | Werewolf Therapeutics, Inc. | $HOWL | MPM BioVentures 2014, L.P. | Not found | S | Common Stock | 48570 | $1.18 | 5,787,670.0000 | 48,540,200 | 0.83% | 0.10% |
| Nov. 7, 2025 | Werewolf Therapeutics, Inc. | $HOWL | MPM BioVentures 2014, L.P. | Not found | S | Common Stock | 68480 | $1.11 | 5,836,240.0000 | 48,540,200 | 1.16% | 0.14% |
| Nov. 11, 2025 | Werewolf Therapeutics, Inc. | $HOWL | MPM BioVentures 2014, L.P. | Not found | S | Common Stock | 55810 | $1.14 | 5,731,860.0000 | 48,540,200 | 0.96% | 0.11% |
| Nov. 12, 2025 | Werewolf Therapeutics, Inc. | $HOWL | MPM BioVentures 2014, L.P. | Not found | S | Common Stock | 40669 | $1.09 | 5,691,191.0000 | 48,540,200 | 0.71% | 0.08% |
| Nov. 6, 2025 | Werewolf Therapeutics, Inc. | $HOWL | MPM BioVentures 2014, L.P. | Not found | S | Common Stock | 54452 | $1.21 | 5,904,720.0000 | 48,540,200 | 0.91% | 0.11% |
| Nov. 5, 2025 | Werewolf Therapeutics, Inc. | $HOWL | MPM BioVentures 2014, L.P. | Not found | S | Common Stock | 47950 | $1.22 | 5,959,172.0000 | 48,540,200 | 0.80% | 0.10% |
| Nov. 4, 2025 | Werewolf Therapeutics, Inc. | $HOWL | MPM BioVentures 2014, L.P. | Not found | S | Common Stock | 140488 | $1.22 | 6,007,122.0000 | 48,540,200 | 2.29% | 0.29% |
| Oct. 30, 2025 | Werewolf Therapeutics, Inc. | $HOWL | MPM BioVentures 2014, L.P. | Not found | S | Common Stock | 86936 | $1.43 | 6,355,717.0000 | 48,540,200 | 1.35% | 0.18% |
| Nov. 3, 2025 | Werewolf Therapeutics, Inc. | $HOWL | MPM BioVentures 2014, L.P. | Not found | S | Common Stock | 94063 | $1.29 | 6,147,610.0000 | 48,540,200 | 1.51% | 0.19% |
| Oct. 31, 2025 | Werewolf Therapeutics, Inc. | $HOWL | MPM BioVentures 2014, L.P. | Not found | S | Common Stock | 114044 | $1.28 | 6,241,673.0000 | 48,540,200 | 1.79% | 0.23% |
| Oct. 27, 2025 | Werewolf Therapeutics, Inc. | $HOWL | MPM BioVentures 2014, L.P. | Not found | S | Common Stock | 72709 | $1.72 | 6,645,961.0000 | 44,827,159 | 1.08% | 0.16% |
| Oct. 29, 2025 | Werewolf Therapeutics, Inc. | $HOWL | MPM BioVentures 2014, L.P. | Not found | S | Common Stock | 134240 | $1.55 | 6,442,653.0000 | 44,827,159 | 2.04% | 0.30% |
| Oct. 28, 2025 | Werewolf Therapeutics, Inc. | $HOWL | MPM BioVentures 2014, L.P. | Not found | S | Common Stock | 69068 | $1.64 | 6,576,893.0000 | 44,827,159 | 1.04% | 0.15% |
| May 13, 2025 | iTeos Therapeutics, Inc. | $ITOS | MPM BioVentures 2014, L.P. | Not found | S | Common Stock | 630191 | $8.06 | 2,108,594.0000 | 38,194,341 | 23.01% | 1.65% |
| March 27, 2025 | Werewolf Therapeutics, Inc. | $HOWL | MPM BioVentures 2014, L.P. | Not found | X | Warrant (Right to Buy) | 4015 | $0.00 | 0.0000 | 44,827,159 | 100.00% | 0.01% |
| March 27, 2025 | Werewolf Therapeutics, Inc. | $HOWL | MPM BioVentures 2014, L.P. | Not found | X | Common Stock | 22758 | $0.09 | 3,210,756.0000 | 44,827,159 | 0.71% | 0.05% |
| March 27, 2025 | Werewolf Therapeutics, Inc. | $HOWL | MPM BioVentures 2014, L.P. | Not found | S | Common Stock | 1963 | $1.05 | 3,208,793.0000 | 44,827,159 | 0.06% | 0.00% |
| March 27, 2025 | Werewolf Therapeutics, Inc. | $HOWL | MPM BioVentures 2014, L.P. | Not found | X | Warrant (Right to Buy) | 18743 | $0.00 | 0.0000 | 44,827,159 | 100.00% | 0.04% |
| Dec. 11, 2024 | Entrada Therapeutics, Inc. | $TRDA | MPM BioVentures 2014, L.P. | Not found | S | Common Stock | 21787 | $20.23 | 4,381,062.0000 | 40,629,602 | 0.49% | 0.05% |
| Dec. 10, 2024 | Entrada Therapeutics, Inc. | $TRDA | MPM BioVentures 2014, L.P. | Not found | S | Common Stock | 22935 | $20.77 | 4,402,849.0000 | 40,629,602 | 0.52% | 0.06% |