Real time insider trading transaction history:
- Insiders are prohibited from making short-swing profits by trading their shares within 6 months of the registration or acquiring the shares.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>
Common stock purchase or sale:
| Transaction Date | Reported DateTime | Company | Symbol | Insider Relationship | Shares Traded | Average Price | Total Amount | Shares Owned | Filing |
| 2025-03-14 Purchase | 2025-03-17 08:01 am | Caribou Biosciences Inc. | CRBU | Haurwitz Rachel E. President and CEO | 20,000 | $1.02 | $20,400 | 3,664,845 (Indirect Direct) | View |
| 2025-02-21 Sale | 2025-02-21 8:19 pm | Caribou Biosciences Inc. | CRBU | MCCLUNG BARBARA G Chief Legal Officer | 3,564 | $1.35 | $4,811 | 613,502 (Direct) | View |
| 2025-02-21 Sale | 2025-02-21 8:19 pm | Caribou Biosciences Inc. | CRBU | Khan Ruhi Ahmad Chief Business Officer | 3,564 | $1.35 | $4,811 | 236,936 (Direct) | View |
| 2025-02-21 Sale | 2025-02-21 8:18 pm | Caribou Biosciences Inc. | CRBU | Kanner Steven Chief Scientific Officer | 3,564 | $1.35 | $4,811 | 601,556 (Direct) | View |
| 2025-01-29 Purchase | 2025-01-30 4:02 pm | Caribou Biosciences Inc. | CRBU | Ryali Sriram Chief Financial Officer | 17,360 | $1.42 | $24,651 | 17,360 (Direct) | View |
Stock options: Exercise, Award, Grant, Conversion
| Transaction Date | Reported DateTime | Exercisable Expiration | Company | Symnbol | Insider Relationship | Shares Traded | Conversion Price | Shares Owned | Filing |
| 2025-02-20 Option Award | 2025-02-21 8:21 pm | N/A 2035-02-19 | Caribou Biosciences Inc. | CRBU | Haurwitz Rachel E. President and CEO | 755,000 | $0 | 4,263,095 (Direct) | View |
| 2025-02-20 Option Award | 2025-02-21 8:20 pm | N/A 2035-02-19 | Caribou Biosciences Inc. | CRBU | Albertson Tina M. Chief Medical Officer | 80,726 | $0 | 80,726 (Direct) | View |
| 2025-02-20 Option Award | 2025-02-21 8:19 pm | N/A 2035-02-19 | Caribou Biosciences Inc. | CRBU | MCCLUNG BARBARA G Chief Legal Officer | 207,500 | $0 | 613,502 (Direct) | View |
| 2025-02-20 Option Award | 2025-02-21 8:19 pm | N/A 2035-02-19 | Caribou Biosciences Inc. | CRBU | Khan Ruhi Ahmad Chief Business Officer | 207,500 | $0 | 236,936 (Direct) | View |
| 2025-02-20 Option Award | 2025-02-21 8:18 pm | N/A 2035-02-19 | Caribou Biosciences Inc. | CRBU | Kelly Timothy P Chief Technology Officer | 207,500 | $0 | 207,500 (Direct) | View |
| 2025-02-20 Option Award | 2025-02-21 8:18 pm | N/A 2035-02-19 | Caribou Biosciences Inc. | CRBU | Kanner Steven Chief Scientific Officer | 207,500 | $0 | 601,556 (Direct) | View |
| 2025-02-20 Option Award | 2025-02-21 8:17 pm | N/A 2035-02-19 | Caribou Biosciences Inc. | CRBU | Zheng Ran Director | 40,500 | $0 | 40,500 (Direct) | View |
| 2025-02-20 Option Award | 2025-02-21 8:17 pm | N/A 2035-02-19 | Caribou Biosciences Inc. | CRBU | Whiting Nancy Director | 40,500 | $0 | 40,500 (Direct) | View |
| 2025-02-20 Option Award | 2025-02-21 8:16 pm | N/A 2035-02-19 | Caribou Biosciences Inc. | CRBU | Sacks Natalie Director | 40,500 | $0 | 40,500 (Direct) | View |
| 2025-02-20 Option Award | 2025-02-21 8:15 pm | N/A 2035-02-19 | Caribou Biosciences Inc. | CRBU | Richardson-Heron Dara Director | 40,500 | $0 | 40,500 (Direct) | View |
| 2025-02-20 Option Award | 2025-02-21 8:14 pm | N/A 2035-02-19 | Caribou Biosciences Inc. | CRBU | JOHNSON DAVID LEE Director | 40,500 | $0 | 40,500 (Direct) | View |
| 2025-02-20 Option Award | 2025-02-21 8:14 pm | N/A 2035-02-19 | Caribou Biosciences Inc. | CRBU | GUGGENHIME ANDREW Director | 40,500 | $0 | 40,500 (Direct) | View |
| 2025-02-20 Option Award | 2025-02-21 8:13 pm | N/A 2035-02-19 | Caribou Biosciences Inc. | CRBU | Braunstein Scott Director | 40,500 | $0 | 40,500 (Direct) | View |
| 2025-01-10 Option Award | 2025-01-10 5:06 pm | N/A 2035-01-09 | Caribou Biosciences Inc. | CRBU | Ryali Sriram Chief Financial Officer | 300,000 | $0 | 300,000 (Direct) | View |
| 2024-11-20 Option Award | 2024-11-22 4:01 pm | N/A N/A | Caribou Biosciences Inc. | CRBU | Fischesser Ryan VP of Finance and Controller | 25,000 | $0 | 118,854 (Direct) | View |
Ownership | 2024-10-04 4:02 pm | N/A N/A | Caribou Biosciences Inc. | CRBU | Fischesser Ryan VP of Finance and Controller | 0 | $0 | 230,919 (Direct) | View |
| 2024-08-19 Option Award | 2024-08-20 4:07 pm | N/A 2034-08-18 | Caribou Biosciences Inc. | CRBU | Albertson Tina M. Chief Medical Officer | 300,000 | $0 | 300,000 (Direct) | View |
| 2024-02-20 Option Award | 2024-02-22 5:28 pm | N/A 2034-02-19 | Caribou Biosciences Inc. | CRBU | O'Byrne Jason Chief Financial Officer | 186,000 | $0 | 212,224 (Direct) | View |
| 2024-02-20 Option Award | 2024-02-22 5:24 pm | N/A 2034-02-19 | Caribou Biosciences Inc. | CRBU | MCCLUNG BARBARA G Chief Legal Officer | 186,000 | $0 | 562,566 (Direct) | View |
| 2024-02-20 Option Award | 2024-02-22 5:21 pm | N/A 2034-02-19 | Caribou Biosciences Inc. | CRBU | Khan Ruhi Ahmad Chief Business Officer | 186,000 | $0 | 186,000 (Direct) | View |
| 2024-02-20 Option Award | 2024-02-22 5:18 pm | N/A 2034-02-19 | Caribou Biosciences Inc. | CRBU | Haurwitz Rachel E. President and CEO | 665,650 | $0 | 4,055,045 (Direct) | View |
| 2024-02-20 Option Award | 2024-02-22 5:15 pm | N/A 2034-02-19 | Caribou Biosciences Inc. | CRBU | Kanner Steven Chief Scientific Officer | 186,000 | $0 | 540,037 (Direct) | View |
| 2024-02-20 Option Award | 2024-02-22 5:12 pm | N/A 2034-02-19 | Caribou Biosciences Inc. | CRBU | Zheng Ran Director | 39,500 | $0 | 39,500 (Direct) | View |
| 2024-02-20 Option Award | 2024-02-22 5:10 pm | N/A 2034-02-19 | Caribou Biosciences Inc. | CRBU | Whiting Nancy Director | 39,500 | $0 | 39,500 (Direct) | View |
| 2024-02-20 Option Award | 2024-02-22 5:08 pm | N/A 2034-02-19 | Caribou Biosciences Inc. | CRBU | Sacks Natalie Director | 39,500 | $0 | 39,500 (Direct) | View |
| 2024-02-20 Option Award | 2024-02-22 5:06 pm | N/A 2034-02-19 | Caribou Biosciences Inc. | CRBU | Richardson-Heron Dara Director | 39,500 | $0 | 39,500 (Direct) | View |
| 2024-02-20 Option Award | 2024-02-22 5:01 pm | N/A 2034-02-19 | Caribou Biosciences Inc. | CRBU | JOHNSON DAVID LEE Director | 39,500 | $0 | 39,500 (Direct) | View |
| 2024-02-20 Option Award | 2024-02-22 4:57 pm | N/A 2034-02-19 | Caribou Biosciences Inc. | CRBU | GUGGENHIME ANDREW Director | 39,500 | $0 | 39,500 (Direct) | View |
| 2024-02-20 Option Award | 2024-02-22 4:54 pm | N/A 2034-02-19 | Caribou Biosciences Inc. | CRBU | Braunstein Scott Director | 39,500 | $0 | 39,500 (Direct) | View |
| 2024-02-06 Exercise | 2024-02-08 5:06 pm | N/A N/A | Caribou Biosciences Inc. | CRBU | Kanner Steven Chief Scientific Officer | 30,577 | $2.69 | 375,660 (Direct) | View |
| 2024-02-06 Exercise | 2024-02-08 5:06 pm | N/A 2029-09-30 | Caribou Biosciences Inc. | CRBU | Kanner Steven Chief Scientific Officer | 30,577 | $0 | 375,660 (Direct) | View |
| 2024-01-08 Option Award | 2024-01-09 4:10 pm | N/A 2034-01-07 | Caribou Biosciences Inc. | CRBU | Kelly Timothy P Chief Technology Officer | 300,000 | $0 | 300,000 (Direct) | View |
| 2023-06-08 Exercise | 2023-06-09 4:31 pm | N/A N/A | Caribou Biosciences Inc. | CRBU | Haurwitz Rachel E. President and CEO | 10,000 | $2.96 | 3,485,745 (Direct) | View |
| 2023-06-08 Exercise | 2023-06-09 4:31 pm | N/A 2023-06-11 | Caribou Biosciences Inc. | CRBU | Haurwitz Rachel E. President and CEO | 10,000 | $0 | 3,485,745 (Direct) | View |
| 2023-03-20 Exercise | 2023-03-22 4:16 pm | N/A N/A | Caribou Biosciences Inc. | CRBU | Haurwitz Rachel E. President and CEO | 10,000 | $2.96 | 3,485,745 (Direct) | View |
| 2023-03-20 Exercise | 2023-03-22 4:16 pm | N/A 2023-06-11 | Caribou Biosciences Inc. | CRBU | Haurwitz Rachel E. President and CEO | 10,000 | $0 | 3,485,745 (Direct) | View |
| 2023-02-21 Option Award | 2023-02-23 5:14 pm | N/A 2033-02-20 | Caribou Biosciences Inc. | CRBU | Haurwitz Rachel E. President and CEO | 510,500 | $0 | 510,500 (Direct) | View |