Werewolf Therapeutics's three largest insider shareholders as of April 17, 2026 are Capital Management, L.P. Ra (Director, 6.24Mn shares), Bioventures 2014, L.P. Mpm (TenPercentOwner, 5.90Mn shares), Ansbert Gadicke (TenPercentOwner, 5.90Mn shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Capital Management, L.P. Ra | - | 0 | 6,237,482 | 14 May, 2025 |
| Ansbert Gadicke | - | 0 | 5,904,720 | 06 Nov, 2025 |
| Bioventures 2014, L.P. Mpm | - | 0 | 5,904,720 | 06 Nov, 2025 |
| Capital Management, L.P. Ra | - | 0 | 5,701,056 | 10 Jan, 2023 |
| Bioventures 2014, L.P. Mpm | - | 0 | 4,784,111 | 04 Dec, 2025 |
| Ansbert Gadicke | - | 0 | 4,784,111 | 04 Dec, 2025 |
| Luke Evnin | - | 0 | 3,787,474 | 06 Nov, 2025 |
| Bioventures 2014, L.P. Mpm | - | 0 | 3,208,793 | 30 Apr, 2025 |
| Luke Evnin | - | 0 | 2,159,860 | 20 Jan, 2026 |
| Cynthia Seidel-Dugan | Chief Scientific Officer | 164,888 | 0 | 14 Jan, 2022 |
| Reid Leonard | Chief Operating Officer | 0 | 122,157 | 17 Dec, 2021 |
| Reid Leonard | Chief Operating Officer | 14,102 | 0 | 04 Jan, 2022 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 16 Jan, 2026 | Luke Evnin | Common Stock | D | 38,782 | $0.54 | 2,159,860 | I | S |
| 13 Jan, 2026 | Luke Evnin | Common Stock | D | 43,198 | $0.55 | 2,266,671 | I | S |
| 14 Jan, 2026 | Luke Evnin | Common Stock | D | 30,616 | $0.57 | 2,236,055 | I | S |
| 15 Jan, 2026 | Luke Evnin | Common Stock | D | 37,413 | $0.55 | 2,198,642 | I | S |
| 08 Jan, 2026 | Luke Evnin | Common Stock | D | 7,716 | $0.63 | 2,393,527 | I | S |
| 09 Jan, 2026 | Luke Evnin | Common Stock | D | 24,678 | $0.61 | 2,368,849 | I | S |
| 12 Jan, 2026 | Luke Evnin | Common Stock | D | 58,980 | $0.57 | 2,309,869 | I | S |
| 05 Jan, 2026 | Luke Evnin | Common Stock | D | 18,378 | $0.64 | 2,453,919 | I | S |
| 06 Jan, 2026 | Luke Evnin | Common Stock | D | 40,761 | $0.65 | 2,413,158 | I | S |
| 07 Jan, 2026 | Luke Evnin | Common Stock | D | 11,915 | $0.64 | 2,401,243 | I | S |
| 30 Dec, 2025 | Luke Evnin | Common Stock | D | 34,847 | $0.61 | 2,515,827 | I | S |
| 31 Dec, 2025 | Luke Evnin | Common Stock | D | 24,962 | $0.62 | 2,490,865 | I | S |
| 02 Jan, 2026 | Luke Evnin | Common Stock | D | 18,568 | $0.63 | 2,472,297 | I | S |
| 22 Dec, 2025 | Luke Evnin | Common Stock | D | 59,307 | $0.69 | 2,782,650 | I | S |
| 23 Dec, 2025 | Luke Evnin | Common Stock | D | 71,428 | $0.63 | 2,711,222 | I | S |
| 24 Dec, 2025 | Luke Evnin | Common Stock | D | 16,310 | $0.65 | 2,694,912 | I | S |
| 26 Dec, 2025 | Luke Evnin | Common Stock | D | 35,632 | $0.63 | 2,659,280 | I | S |
| 29 Dec, 2025 | Luke Evnin | Common Stock | D | 108,606 | $0.61 | 2,550,674 | I | S |
| 15 Dec, 2025 | Luke Evnin | Common Stock | D | 23,640 | $1.07 | 2,866,488 | I | S |
| 16 Dec, 2025 | Luke Evnin | Common Stock | D | 14,548 | $1.05 | 2,851,940 | I | S |