| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Kelly Timothy P | Chief Technology Officer | C/O CARIBOU BIOSCIENCES, INC., 2929 7TH STREET, SUITE 105, BERKELEY | /s/ Barbara G. McClung, as attorney-in-fact | 27 Feb 2026 | 0001754067 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | CRBU | Common Stock | Sale | $12,020 | -6,228 | -7.8% | $1.93 | 73,125 | 25 Feb 2026 | Direct |