| Name | Role | Date | Shares | Price | Value |
|---|---|---|---|---|---|
| John M. Leonard | CEO;Pres | 2026-11-02 | 9,000 | $11.99 | $107.91kSell |
| Michael P. Dube | CAO;VP | 2026-10-02 | 1,864 | $12.43 | $23.17kSell |
| John M. Leonard | CEO;Pres | 2026-08-21 | 2,785 | $13.00 | $36.21kSell |
| John M. Leonard | CEO;Pres | 2026-08-20 | 19,890 | $12.60 | $250.61kSell |
| Edward J. Dulac Iii | CFO;EVP | 2026-07-22 | 8,111 | $11.25 | $91.25kSell |
| Edward J. Dulac Iii | EVP Chief Financial Officer | 2026-07-02 | 4,677 | $18.00 | $84.19kSell |
| Michael P. Dube | VP Chief Accounting Officer | 2026-07-01 | 2,641 | $16.78 | $44.32kSell |
| Eliana Clark | EVP Chief Technical Officer | 2026-03-02 | 607 | $13.78 | $8.36kSell |
| James Basta | EVP General Counsel | 2026-03-02 | 1,211 | $13.78 | $16.69kSell |
| Birgit C. Schultes | EVP Chief Scientific Officer | 2026-01-05 | 8,508 | $9.21 | $78.36kSell |
| Name | Hold | Shares | Value | Type |
|---|---|---|---|---|
| Rachel E. Haurwitz | 3.99% | 5,593,846 | $63.83M | Insider |
| Caribou Therapeutics Holdco LLC | 3.99% | 5,593,846 | $63.83M | Insider |
| Novartis Institutes For Biomedical Research Inc | 3.10% | 4,352,295 | $49.66M | Insider |
| Caribou Biosciences Inc | 2.85% | 3,994,355 | $45.58M | Insider |
| Atlas Venture Associates IX LP | 2.66% | 3,729,788 | $42.56M | Insider |
| Atlas Venture Fund IX LP | 2.55% | 3,579,788 | $40.85M | Insider |
| Carl L. Gordon | 1.90% | 2,662,180 | $30.38M | Insider |
| Orbimed Advisors LLC | 1.90% | 2,662,180 | $30.38M | Insider |
| Temasek Holdings Private Ltd | 0.91% | 1,281,054 | $14.62M | Insider |
| John M. Leonard | 0.89% | 1,254,894 | $14.32M | Insider |