Michaelson Jennifer (CIK 1838061) reported 23 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-08-14). Recent activity: Buy CGEM (30,000 shares), Sell CGEM (30,000 shares), Buy CGEM (4,000 shares), Sell CGEM (8,000 shares), Buy CGEM (4,000 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-14 | Cullinan Therapeutics, Inc. (CGEM) | Chief Scientific Officer | Buy | 30,000 | $129,000 |
| 2026-08-14 | Cullinan Therapeutics, Inc. (CGEM) | Chief Scientific Officer | Sell | 30,000 | $607,800 |
| 2026-07-07 | Cullinan Therapeutics, Inc. (CGEM) | Chief Scientific Officer | Buy | 4,000 | $17,200 |
| 2026-07-07 | Cullinan Therapeutics, Inc. (CGEM) | Chief Scientific Officer | Sell | 8,000 | $142,560 |
| 2026-05-06 | Cullinan Therapeutics, Inc. (CGEM) | Chief Scientific Officer | Buy | 4,000 | $17,200 |
| 2026-05-06 | Cullinan Therapeutics, Inc. (CGEM) | Chief Scientific Officer | Sell | 7,800 | $113,880 |
| 2026-05-06 | Cullinan Therapeutics, Inc. (CGEM) | Chief Scientific Officer | Sell | 200 | $3,116 |
| 2026-03-09 | Cullinan Therapeutics, Inc. (CGEM) | Chief Scientific Officer | Buy | 4,000 | $17,200 |
| 2026-03-09 | Cullinan Therapeutics, Inc. (CGEM) | Chief Scientific Officer | Sell | 8,000 | $125,440 |
| 2026-02-26 | Cullinan Therapeutics, Inc. (CGEM) | Chief Scientific Officer | Sell | 1,780 | $25,169 |
| 2026-02-25 | Cullinan Therapeutics, Inc. (CGEM) | Chief Scientific Officer | Sell | 1,752 | $24,510 |
| 2026-02-25 | Cullinan Therapeutics, Inc. (CGEM) | Chief Scientific Officer | Sell | 3,601 | $52,106 |
| 2026-02-23 | Cullinan Therapeutics, Inc. (CGEM) | Chief Scientific Officer | Sell | 3,742 | $50,966 |
| 2026-02-23 | Cullinan Therapeutics, Inc. (CGEM) | Chief Scientific Officer | Buy | 8,000 | $34,400 |
| 2026-02-23 | Cullinan Therapeutics, Inc. (CGEM) | Chief Scientific Officer | Sell | 8,000 | $114,400 |
| 2026-02-19 | Cullinan Therapeutics, Inc. (CGEM) | Chief Scientific Officer | Buy | 57,500 | $0 |
| 2026-02-13 | Cullinan Therapeutics, Inc. (CGEM) | Chief Scientific Officer | Sell | 416 | $5,004 |
| 2026-01-23 | Cullinan Therapeutics, Inc. (CGEM) | Chief Scientific Officer | Sell | 4,000 | $49,200 |
| 2025-12-22 | Cullinan Therapeutics, Inc. (CGEM) | Chief Scientific Officer | Sell | 1,345 | $13,463 |
| 2025-12-19 | Cullinan Therapeutics, Inc. (CGEM) | Chief Scientific Officer | Sell | 2,898 | $28,024 |
| 2025-12-16 | Cullinan Therapeutics, Inc. (CGEM) | Chief Scientific Officer | Sell | 2,148 | $26,592 |
| 2025-12-16 | Cullinan Therapeutics, Inc. (CGEM) | Chief Scientific Officer | Sell | 995 | $11,840 |
| 2025-11-25 | Cullinan Therapeutics, Inc. (CGEM) | Chief Scientific Officer | Sell | 4,000 | $49,200 |
Source: SEC Form 4 filings · as of 2026-08-14