7 insiders reported 22 Form 4 transactions for Caribou Biosciences, Inc. (CRBU) over the past 18 months (most recent 2026-02-27). Recent activity: Kelly Timothy P (Chief Technology Officer) Sell 6,228 shares, Khan Ruhi Ahmad (Chief Business Officer) Buy 45,000 shares, Khan Ruhi Ahmad (Chief Business Officer) Sell 6,938 shares, Albertson Tina M. (Chief Medical Officer) Buy 55,000 shares, Albertson Tina M. (Chief Medical Officer) Sell 1,066 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-02-27 | Kelly Timothy P | Chief Technology Officer | Sell | 6,228 | $12,020 |
| 2026-02-24 | Khan Ruhi Ahmad | Chief Business Officer | Buy | 45,000 | $0 |
| 2026-02-24 | Khan Ruhi Ahmad | Chief Business Officer | Sell | 6,938 | $13,598 |
| 2026-02-24 | Albertson Tina M. | Chief Medical Officer | Buy | 55,000 | $0 |
| 2026-02-24 | Albertson Tina M. | Chief Medical Officer | Sell | 1,066 | $2,089 |
| 2026-02-24 | Kelly Timothy P | Chief Technology Officer | Buy | 45,000 | $0 |
| 2026-02-24 | Kelly Timothy P | Chief Technology Officer | Sell | 3,147 | $6,168 |
| 2026-02-24 | MCCLUNG BARBARA G | Chief Legal Officer | Buy | 45,000 | $0 |
| 2026-02-24 | MCCLUNG BARBARA G | Chief Legal Officer | Sell | 6,938 | $13,598 |
| 2026-02-20 | Haurwitz Rachel E. | President and CEO | Buy | 151,700 | $0 |
| 2026-02-20 | Ryali Sriram | Chief Financial Officer | Buy | 55,000 | $0 |
| 2025-03-17 | Haurwitz Rachel E. | President and CEO | Buy | 20,000 | $20,400 |
| 2025-02-21 | Kanner Steven | Chief Scientific Officer | Sell | 3,564 | $4,811 |
| 2025-02-21 | Kanner Steven | Chief Scientific Officer | Buy | 37,500 | $0 |
| 2025-02-21 | Khan Ruhi Ahmad | Chief Business Officer | Buy | 37,500 | $0 |
| 2025-02-21 | Khan Ruhi Ahmad | Chief Business Officer | Sell | 3,564 | $4,811 |
| 2025-02-21 | Haurwitz Rachel E. | President and CEO | Buy | 136,750 | $0 |
| 2025-02-21 | Kelly Timothy P | Chief Technology Officer | Buy | 37,500 | $0 |
| 2025-02-21 | Albertson Tina M. | Chief Medical Officer | Buy | 14,589 | $0 |
| 2025-02-21 | MCCLUNG BARBARA G | Chief Legal Officer | Buy | 37,500 | $0 |
| 2025-02-21 | MCCLUNG BARBARA G | Chief Legal Officer | Sell | 3,564 | $4,811 |
| 2025-01-30 | Ryali Sriram | Chief Financial Officer | Buy | 17,360 | $24,651 |
Source: SEC Form 4 filings · as of 2026-02-27
