| Name | Role | Date | Shares | Price | Value | 
|---|---|---|---|---|---|
| Michael P. Dube | VP Chief Accounting Officer | 2025-10-01 | 1,871 | $17.38 | $32.52kSell | 
| Birgit C. Schultes | EVP Chief Scientific Officer | 2025-10-01 | 31 | $17.38 | $538.78Sell | 
| William J. Chase | Director | 2025-08-20 | 100,000 | $10.03 | $1.00MBuy | 
| Edward J. Dulac Iii | EVP Chief Financial Officer | 2025-07-23 | 7,462 | $14.02 | $104.62kSell | 
| Michael P. Dube | VP Chief Accounting Officer | 2025-07-02 | 2,503 | $9.95 | $24.90kSell | 
| Eliana Clark | EVP Chief Technical Officer | 2025-07-01 | 1,022 | $9.82 | $10.04kSell | 
| Jesse Goodman | Director | 2025-07-01 | 1,547 | $9.23 | $14.28kSell | 
| Jesse Goodman | Director | 2025-06-30 | 1,547 | $9.56 | $14.79kSell | 
| Muna Bhanji | Director | 2025-04-29 | 265 | $8.50 | $2.25kSell | 
| Eliana Clark | EVP Chief Technical Officer | 2025-03-04 | 679 | $8.99 | $6.10kSell | 
| Name | Hold | Shares | Value | Type | 
|---|---|---|---|---|
| Ark Investment Management LLC | 12.57% | 13,017,876 | $170.79M | Institution | 
| Vanguard Group Inc | 10.48% | 10,852,169 | $142.38M | Institution | 
| Blackrock Inc | 9.68% | 10,027,175 | $131.56M | Institution | 
| Caribou Therapeutics Holdco LLC | 5.40% | 5,593,846 | $73.39M | Insider | 
| Rachel E. Haurwitz | 5.40% | 5,593,846 | $73.39M | Insider | 
| Novartis Institutes For Biomedical Research Inc | 4.20% | 4,352,295 | $57.10M | Insider | 
| Morgan Stanley | 3.97% | 4,116,861 | $54.01M | Institution | 
| State Street Corp | 3.90% | 4,039,285 | $53.00M | Institution | 
| Caribou Biosciences Inc | 3.86% | 3,994,355 | $52.41M | Insider | 
| Atlas Venture Associates IX LP | 3.60% | 3,729,788 | $48.93M | Insider |