Cullinan Therapeutics (NASDAQ: CGEM) insider transactions
In the twelve months to 10 November 2026, executives and directors of Cullinan Therapeutics reported 29 open-market sales of 169,912 shares ($2.6m) and 0 open-market purchases, by 5 people, according to the Form 4 filings they submitted to the SEC.
Latest transactions
| Date | Insider | Role | Transaction | Shares | Price | Held after | Filing |
|---|---|---|---|---|---|---|---|
| 5 November 2026 | Michaelson Jennifer | Chief Scientific Officer | Option exercise, 10b5-1 plan | +3,805 | $4.30 | 162,649 | Form 4 |
| 5 November 2026 | Michaelson Jennifer | Chief Scientific Officer | Open-market sale, 10b5-1 plan | −4,000 | $12.36 | 158,649 | Form 4 |
| 8 September 2026 | Michaelson Jennifer | Chief Scientific Officer | Option exercise | +4,000 | $4.30 | 166,844 | Form 4 |
| 8 September 2026 | Michaelson Jennifer | Chief Scientific Officer | Open-market sale | −8,000 | $21.57 | 158,844 | Form 4 |
| 13 August 2026 | Michaelson Jennifer | Chief Scientific Officer | Option exercise | +30,000 | $4.30 | 192,844 | Form 4 |
| 13 August 2026 | Michaelson Jennifer | Chief Scientific Officer | Open-market sale | −30,000 | $20.26 | 162,844 | Form 4 |
| 6 July 2026 | Michaelson Jennifer | Chief Scientific Officer | Option exercise | +4,000 | $4.30 | 170,844 | Form 4 |
| 6 July 2026 | Michaelson Jennifer | Chief Scientific Officer | Open-market sale | −8,000 | $17.82 | 162,844 | Form 4 |
| 30 June 2026 | Fenton Mary Kay | Chief Financial Officer | Grant or award | +1,541 | $8.60 | 127,921 | Form 4 |
| 30 June 2026 | Sumer Jacquelyn L | Chief Legal Officer | Grant or award | +2,470 | $8.60 | 130,559 | Form 4 |
| 5 May 2026 | Michaelson Jennifer | Chief Scientific Officer | Option exercise | +4,000 | $4.30 | 174,844 | Form 4 |
| 5 May 2026 | Michaelson Jennifer | Chief Scientific Officer | Open-market sale | −7,800 | $14.60 | 167,044 | Form 4 |
| 5 May 2026 | Michaelson Jennifer | Chief Scientific Officer | Open-market sale | −200 | $15.58 | 166,844 | Form 4 |
| 5 March 2026 | Michaelson Jennifer | Chief Scientific Officer | Option exercise | +4,000 | $4.30 | 178,844 | Form 4 |
| 5 March 2026 | Michaelson Jennifer | Chief Scientific Officer | Open-market sale | −8,000 | $15.68 | 170,844 | Form 4 |
| 25 February 2026 | Michaelson Jennifer | Chief Scientific Officer | Open-market sale | −1,780 | $14.14 | 174,844 | Form 4 |
| 24 February 2026 | Sumer Jacquelyn L | Chief Legal Officer | Open-market sale | −3,601 | $14.47 | 128,089 | Form 4 |
| 24 February 2026 | Jones Jeffrey Alan | Chief Medical Officer | Open-market sale | −4,582 | $14.47 | 159,968 | Form 4 |
| 24 February 2026 | Ahmed Nadim | President and CEO | Open-market sale | −13,515 | $14.47 | 390,803 | Form 4 |
| 24 February 2026 | Michaelson Jennifer | Chief Scientific Officer | Open-market sale | −3,601 | $14.47 | 176,624 | Form 4 |
Names appear as in the filing, surname first. A dash in the price column means the filing reports none, as in grants and gifts.
How to read the table
Only open-market purchases and sales are trades the insider chose to make at the market price, and they are the ones counted in the summary above. Grants, option exercises and shares withheld for tax come from pay plans. A sale marked as a 10b5-1 plan was scheduled in advance under a written plan.
Where each row comes from
From the Form 4 that each executive, director or large shareholder must file with the SEC within two business days of a transaction, read up to 10 November 2026. Each row links to its filing on EDGAR. Only transactions in shares are listed, not derivatives, and amended filings are left out. The accounts of the company are on the Cullinan Therapeutics page; the method, in data sources.
Information prepared from the Form 4 filings submitted to the SEC, for information purposes only. It is not financial advice or a recommendation to buy or sell. Updated on 12 November 2026.