19 insiders reported 546 Form 4 transactions for Werewolf Therapeutics, Inc. (HOWL) over the past 18 months (most recent 2026-07-08). Recent activity: EVNIN LUKE (Director) Sell 35,770 shares, EVNIN LUKE (Director) Sell 107,429 shares, EVNIN LUKE (Director) Sell 157,084 shares, RA Capital Healthcare Fund LP (10% Owner) Sell 389,216 shares, Shah Rajeev M. (10% Owner) Sell 389,216 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-07-08 | EVNIN LUKE | Director | Sell | 35,770 | $11,446 |
| 2026-07-08 | EVNIN LUKE | Director | Sell | 107,429 | $33,303 |
| 2026-06-29 | EVNIN LUKE | Director | Sell | 157,084 | $47,125 |
| 2026-06-22 | RA Capital Healthcare Fund LP | 10% Owner | Sell | 389,216 | $136,226 |
| 2026-06-22 | Shah Rajeev M. | 10% Owner | Sell | 389,216 | $136,226 |
| 2026-06-22 | Kolchinsky Peter | 10% Owner | Sell | 389,216 | $136,226 |
| 2026-06-22 | RA CAPITAL MANAGEMENT, L.P. | 10% Owner | Sell | 389,216 | $136,226 |
| 2026-06-22 | Shah Rajeev M. | 10% Owner | Sell | 27,695 | $9,693 |
| 2026-06-22 | Kolchinsky Peter | 10% Owner | Sell | 27,695 | $9,693 |
| 2026-06-22 | RA CAPITAL MANAGEMENT, L.P. | 10% Owner | Sell | 27,695 | $9,693 |
| 2026-06-22 | RA Capital Healthcare Fund LP | 10% Owner | Sell | 27,695 | $9,693 |
| 2026-06-16 | RA Capital Healthcare Fund LP | 10% Owner | Sell | 159,119 | $63,648 |
| 2026-06-16 | Shah Rajeev M. | 10% Owner | Sell | 159,119 | $63,648 |
| 2026-06-16 | RA CAPITAL MANAGEMENT, L.P. | 10% Owner | Sell | 159,119 | $63,648 |
| 2026-06-16 | Kolchinsky Peter | 10% Owner | Sell | 159,119 | $63,648 |
| 2026-06-16 | RA Capital Healthcare Fund LP | 10% Owner | Sell | 11,322 | $4,529 |
| 2026-06-16 | Shah Rajeev M. | 10% Owner | Sell | 11,322 | $4,529 |
| 2026-06-16 | Kolchinsky Peter | 10% Owner | Sell | 11,322 | $4,529 |
| 2026-06-16 | RA CAPITAL MANAGEMENT, L.P. | 10% Owner | Sell | 11,322 | $4,529 |
| 2026-06-16 | Shah Rajeev M. | 10% Owner | Sell | 120,216 | $46,884 |
| 2026-06-16 | Kolchinsky Peter | 10% Owner | Sell | 120,216 | $46,884 |
| 2026-06-16 | RA CAPITAL MANAGEMENT, L.P. | 10% Owner | Sell | 120,216 | $46,884 |
| 2026-06-16 | RA Capital Healthcare Fund LP | 10% Owner | Sell | 120,216 | $46,884 |
| 2026-06-16 | Shah Rajeev M. | 10% Owner | Sell | 8,554 | $3,336 |
| 2026-06-16 | Kolchinsky Peter | 10% Owner | Sell | 8,554 | $3,336 |
Source: SEC Form 4 filings · as of 2026-07-08