🕵️ Caribou Biosciences, Inc. ($CRBU)
SEC insider & ownership activity, last 12 months · CIK 1619856 · every row links its SEC filing
Over the last 12 months insiders sold $47K with no open-market buying against it. Timothy Kelly sold $18K in discretionary trades (Feb). No red-flag 8-Ks in the window.
Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
0 buyers, $0 (0 lots) · 4 sellers, $47K (5 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Timothy Kelly | 0 | – | 2 | $18K | Feb 25, 2026 |
| Barbara G. McClung | 0 | – | 1 | $14K | Feb 24, 2026 |
| Ruhi Ahmad Khan | 0 | – | 1 | $14K | Feb 24, 2026 |
| Tina M. Albertson | 0 | – | 1 | $2K | Feb 24, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| BlackRock, Inc. | 7.2% | 13G | Jul 27, 2026 | filing ↗ | |
| Felix Adler | 5.0% | 13D | Apr 22, 2025 | filing ↗ | |
| Rachel E. Haurwitz | 5.0% | 13D | Apr 22, 2025 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Timothy Kelly | $12K | Feb 25, 2026 | filing ↗ |
| Ruhi Ahmad Khan | $14K | Feb 24, 2026 | filing ↗ |
| Barbara G. McClung | $14K | Feb 24, 2026 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Earnings (2.02) | Aug 13, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 13, 2026 | filing ↗ |
| Shareholder vote (5.07) | Jun 17, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jun 17, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Jun 11, 2026 | filing ↗ |
| Other events (8.01) | Jun 11, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jun 11, 2026 | filing ↗ |
| Earnings (2.02) | May 7, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 7, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Mar 31, 2026 | filing ↗ |
| Other events (8.01) | Mar 31, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 31, 2026 | filing ↗ |
| Earnings (2.02) | Mar 5, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 5, 2026 | filing ↗ |
| Earnings (2.02) | Nov 12, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 12, 2025 | filing ↗ |
| Earnings (2.02) | Nov 3, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Nov 3, 2025 | filing ↗ |
| Other events (8.01) | Nov 3, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 3, 2025 | filing ↗ |