Cullinan Therapeutics, Inc. — Insider Transactions
Form 4 filings by directors, officers, and 10%+ shareholders
SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.
| Insider | Title | Type | Shares | Price | Value | Owns After | Date |
|---|---|---|---|---|---|---|---|
| AHMED NADIM | President and CEO | Sale | 9,922 | $10.01 | $99,319 | 420,699 | Dec 23, 2025 |
| Michaelson Jennifer | Chief Scientific Officer | Sale | 1,345 | $10.01 | $13,463 | 132,635 | Dec 19, 2025 |
| SUMER JACQUELYN L | Chief Legal Officer | Sale | 3,480 | $9.67 | $33,652 | 135,432 | Dec 18, 2025 |
| Jones Jeffrey Alan | Chief Medical Officer | Sale | 4,632 | $9.67 | $44,791 | 169,532 | Dec 18, 2025 |
| Michaelson Jennifer | Chief Scientific Officer | Sale | 2,898 | $9.67 | $28,024 | 133,980 | Dec 18, 2025 |
| Michaelson Jennifer | Chief Scientific Officer | Sale | 2,148 | $12.38 | $26,592 | 137,873 | Dec 15, 2025 |
| Michaelson Jennifer | Chief Scientific Officer | Sale | 4,000 | $12.30 | $49,200 | 138,004 | Nov 24, 2025 |
| Nichols Weston | — | Purchase | 165,667 | $8.40 | $1,391,603 | 8,963,500 | Oct 28, 2025 |
| Lynx1 Capital Management LP | — | Purchase | 15,032 | $7.59 | $114,093 | 8,564,116 | Oct 15, 2025 |
| Lynx1 Capital Management LP | — | Purchase | 277,298 | $7.36 | $2,040,913 | 8,549,084 | Oct 8, 2025 |
| Jones Jeffrey Alan | Chief Medical Officer | Sale | 4,895 | $8.53 | $41,754 | 174,164 | Feb 25, 2025 |
| Michaelson Jennifer | Chief Scientific Officer | Sale | 3,756 | $8.53 | $32,039 | 142,004 | Feb 25, 2025 |
| AHMED NADIM | President and CEO | Sale | 12,529 | $8.53 | $106,872 | 430,621 | Feb 25, 2025 |
| SUMER JACQUELYN L | Chief Legal Officer | Sale | 3,756 | $8.53 | $32,039 | 136,895 | Feb 25, 2025 |
| Michaelson Jennifer | Chief Scientific Officer | Award / Grant | 50,000 | — | — | 145,760 | Feb 19, 2025 |
| Savill Corrine | Chief Business Officer | Award / Grant | 37,500 | — | — | 240,990 | Feb 19, 2025 |
| SUMER JACQUELYN L | Chief Legal Officer | Award / Grant | 50,000 | — | — | 140,651 | Feb 19, 2025 |
| AHMED NADIM | President and CEO | Award / Grant | 180,000 | — | — | 443,150 | Feb 19, 2025 |
| Jones Jeffrey Alan | Chief Medical Officer | Award / Grant | 65,000 | — | — | 179,059 | Feb 19, 2025 |
| Fenton Mary Kay | Chief Financial Officer | Award / Grant | 60,000 | — | — | 60,000 | Feb 19, 2025 |
| Michaelson Jennifer | Chief Scientific Officer | Sale | 4,000 | $12.51 | $50,040 | 95,760 | Jan 6, 2025 |
| AHMED NADIM | President and CEO | Sale | 8,400 | $11.87 | $99,708 | 263,150 | Dec 24, 2024 |
| Michaelson Jennifer | Chief Scientific Officer | Sale | 4,693 | $11.41 | $53,547 | 99,760 | Dec 18, 2024 |
| SUMER JACQUELYN L | Chief Legal Officer | Sale | 3,482 | $11.41 | $39,730 | 90,651 | Dec 18, 2024 |
| Jones Jeffrey Alan | Chief Medical Officer | Sale | 4,632 | $11.41 | $52,851 | 114,059 | Dec 18, 2024 |
| Michaelson Jennifer | Chief Scientific Officer | Sale | 3,489 | $12.52 | $43,682 | 104,453 | Dec 12, 2024 |
| Michaelson Jennifer | Chief Scientific Officer | Sale | 8,000 | $15.64 | $125,120 | 107,942 | Nov 5, 2024 |
| Michaelson Jennifer | Chief Scientific Officer | Sale | 8,000 | $18.09 | $144,720 | 115,942 | Sep 5, 2024 |
| Michaelson Jennifer | Chief Scientific Officer | Sale | 8,000 | $16.33 | $130,640 | 123,942 | Jul 5, 2024 |
| Michaelson Jennifer | Chief Scientific Officer | Award / Grant | 2,360 | $9.00 | $21,240 | 131,942 | Jul 1, 2024 |
| Ebeling Thomas | — | Option Exercise | 18,450 | $13.00 | $239,850 | 186,653 | Jun 10, 2024 |
| Ebeling Thomas | — | Award / Grant | 16,475 | $12.73 | $209,727 | 168,203 | May 23, 2024 |
| Michaelson Jennifer | Chief Scientific Officer | Option Exercise | 50,000 | $4.30 | $215,000 | 187,582 | May 6, 2024 |
| Trigilio Jeffrey | Chief Financial Officer | Award / Grant | 50,000 | — | — | 133,919 | Feb 22, 2024 |
| AHMED NADIM | President and CEO | Award / Grant | 160,000 | — | — | 271,550 | Feb 22, 2024 |
| Savill Corrine | Chief Business Officer | Award / Grant | 37,500 | — | — | 203,490 | Feb 22, 2024 |
| Jones Jeffrey Alan | Chief Medical Officer | Award / Grant | 62,500 | — | — | 118,691 | Feb 22, 2024 |
| Michaelson Jennifer | Chief Scientific Officer | Award / Grant | 50,000 | — | — | 137,582 | Feb 22, 2024 |
| SUMER JACQUELYN L | Chief Legal Officer | Award / Grant | 50,000 | — | — | 94,133 | Feb 22, 2024 |
| Savill Corrine | Chief Business Officer | Option Exercise | 40,000 | $4.30 | $172,000 | 205,990 | Feb 1, 2024 |
| Savill Corrine | Chief Business Officer | Sale | 40,000 | $14.09 | $563,600 | 165,990 | Jan 29, 2024 |
| Savill Corrine | Chief Business Officer | Sale | 21,316 | $12.46 | $265,597 | 165,990 | Jan 22, 2024 |
| AHMED NADIM | President and CEO | Sale | 4,272 | $9.24 | $39,473 | 111,550 | Dec 26, 2023 |
| Jones Jeffrey Alan | Chief Medical Officer | Sale | 1,860 | $8.50 | $15,810 | 56,191 | Dec 21, 2023 |
| SUMER JACQUELYN L | Chief Legal Officer | Sale | 1,400 | $8.50 | $11,900 | 44,133 | Dec 21, 2023 |
| Trigilio Jeffrey | Chief Financial Officer | Sale | 1,920 | $8.50 | $16,320 | 83,919 | Dec 21, 2023 |
| Michaelson Jennifer | Chief Scientific Officer | Sale | 1,145 | $8.50 | $9,733 | 87,582 | Dec 21, 2023 |
| Michaelson Jennifer | Chief Scientific Officer | Sale | 238 | $8.22 | $1,956 | 88,727 | Dec 18, 2023 |
| Jones Jeffrey Alan | Chief Medical Officer | Sale | 386 | $8.22 | $3,173 | 58,051 | Dec 18, 2023 |
| SUMER JACQUELYN L | Chief Legal Officer | Sale | 290 | $8.22 | $2,384 | 45,533 | Dec 18, 2023 |