MPM Asset Management Investors BV2014 LLC (CIK 1609495) reported 31 SEC Form 4 insider transactions across 2 companies over the past 18 months (most recent 2025-12-04). Recent activity: Sell HOWL (57,225 shares), Sell HOWL (59,277 shares), Sell HOWL (83,230 shares), Sell HOWL (60,733 shares), Sell HOWL (20,277 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2025-12-04 | Werewolf Therapeutics, Inc. (HOWL) | Insider | Sell | 57,225 | $49,786 |
| 2025-12-04 | Werewolf Therapeutics, Inc. (HOWL) | Insider | Sell | 59,277 | $52,757 |
| 2025-12-04 | Werewolf Therapeutics, Inc. (HOWL) | Insider | Sell | 83,230 | $80,733 |
| 2025-12-01 | Werewolf Therapeutics, Inc. (HOWL) | Insider | Sell | 60,733 | $59,518 |
| 2025-12-01 | Werewolf Therapeutics, Inc. (HOWL) | Insider | Sell | 20,277 | $20,074 |
| 2025-12-01 | Werewolf Therapeutics, Inc. (HOWL) | Insider | Sell | 60,917 | $57,262 |
| 2025-11-25 | Werewolf Therapeutics, Inc. (HOWL) | Insider | Sell | 64,331 | $53,395 |
| 2025-11-25 | Werewolf Therapeutics, Inc. (HOWL) | Insider | Sell | 88,802 | $87,026 |
| 2025-11-25 | Werewolf Therapeutics, Inc. (HOWL) | Insider | Sell | 42,533 | $39,130 |
| 2025-11-20 | Werewolf Therapeutics, Inc. (HOWL) | Insider | Sell | 52,627 | $48,943 |
| 2025-11-20 | Werewolf Therapeutics, Inc. (HOWL) | Insider | Sell | 66,324 | $62,345 |
| 2025-11-20 | Werewolf Therapeutics, Inc. (HOWL) | Insider | Sell | 41,152 | $36,625 |
| 2025-11-17 | Werewolf Therapeutics, Inc. (HOWL) | Insider | Sell | 90,951 | $89,132 |
| 2025-11-17 | Werewolf Therapeutics, Inc. (HOWL) | Insider | Sell | 61,640 | $57,325 |
| 2025-11-17 | Werewolf Therapeutics, Inc. (HOWL) | Insider | Sell | 57,061 | $54,208 |
| 2025-11-12 | Werewolf Therapeutics, Inc. (HOWL) | Insider | Sell | 68,480 | $76,013 |
| 2025-11-12 | Werewolf Therapeutics, Inc. (HOWL) | Insider | Sell | 48,570 | $57,313 |
| 2025-11-12 | Werewolf Therapeutics, Inc. (HOWL) | Insider | Sell | 55,810 | $63,623 |
| 2025-11-12 | Werewolf Therapeutics, Inc. (HOWL) | Insider | Sell | 40,669 | $44,329 |
| 2025-11-06 | Werewolf Therapeutics, Inc. (HOWL) | Insider | Sell | 140,488 | $171,395 |
| 2025-11-06 | Werewolf Therapeutics, Inc. (HOWL) | Insider | Sell | 47,950 | $58,499 |
| 2025-11-06 | Werewolf Therapeutics, Inc. (HOWL) | Insider | Sell | 54,452 | $65,887 |
| 2025-11-03 | Werewolf Therapeutics, Inc. (HOWL) | Insider | Sell | 94,063 | $121,341 |
| 2025-11-03 | Werewolf Therapeutics, Inc. (HOWL) | Insider | Sell | 86,936 | $124,318 |
| 2025-11-03 | Werewolf Therapeutics, Inc. (HOWL) | Insider | Sell | 114,044 | $145,976 |
Source: SEC Form 4 filings · as of 2025-12-04