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Insider trades
Open-market buys and sells by officers, directors and 10% owners, from SEC Form 4. Usually filed within two business days.
About this data
- What it is
- When a company's officers, directors or owners of more than 10% buy or sell its stock, they must report the trade to the SEC on Form 4. This feed shows purchases and sales on the open market; stock grants, option exercises and shares withheld for tax are left out.
- Who files it
- The insider, usually through the company, within two business days of the trade.
- How current
- We collect new filings throughout the day on SEC business days.
- Worth knowing
- Sales are often routine: insiders sell to diversify, to pay taxes, or under a 10b5-1 plan set up months in advance. A purchase with their own money is less common, which is why many investors pay closer attention to it.
All of this comes from public filings.
Source and freshness · Information, not investment advice (disclaimer).
Open-market trades per day, last 30 days
Purchases Sales
By trade date. Insiders have two business days to file, so the most recent days fill in later.
Latest open-market insider trades
Showing: ticker CGEM
| Traded | Insider | Company | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Nov 5, 2026 | Jennifer Michaelson Chief Scientific Officer | CGEM Cullinan Therapeutics, Inc. | Sale | 4,000 | $12.36 | $49.4K Sale | Form 4 ↗ |
| Sep 8, 2026 | Jennifer Michaelson Chief Scientific Officer | CGEM Cullinan Therapeutics, Inc. | Sale | 8,000 | $21.57 | $172.6K Sale | Form 4 ↗ |
| Aug 13, 2026 | Jennifer Michaelson Chief Scientific Officer | CGEM Cullinan Therapeutics, Inc. | Sale | 30,000 | $20.26 | $607.8K Sale | Form 4 ↗ |
| Jul 6, 2026 | Jennifer Michaelson Chief Scientific Officer | CGEM Cullinan Therapeutics, Inc. | Sale | 8,000 | $17.82 | $142.6K Sale | Form 4 ↗ |
| May 5, 2026 | Jennifer Michaelson Chief Scientific Officer | CGEM Cullinan Therapeutics, Inc. | Sale | 200 | $15.58 | $3,116 Sale | Form 4 ↗ |
| May 5, 2026 | Jennifer Michaelson Chief Scientific Officer | CGEM Cullinan Therapeutics, Inc. | Sale | 7,800 | $14.60 | $113.9K Sale | Form 4 ↗ |
| Mar 5, 2026 | Jennifer Michaelson Chief Scientific Officer | CGEM Cullinan Therapeutics, Inc. | Sale | 8,000 | $15.68 | $125.4K Sale | Form 4 ↗ |
| Feb 25, 2026 | Jennifer Michaelson Chief Scientific Officer | CGEM Cullinan Therapeutics, Inc. | Sale | 1,780 | $14.14 | $25.2K Sale | Form 4 ↗ |
| Feb 24, 2026 | Jennifer Michaelson Chief Scientific Officer | CGEM Cullinan Therapeutics, Inc. | Sale | 3,601 | $14.47 | $52.1K Sale | Form 4 ↗ |
| Feb 24, 2026 | Ahmed Nadim President and CEO, Director | CGEM Cullinan Therapeutics, Inc. | Sale | 13,515 | $14.47 | $195.6K Sale | Form 4 ↗ |
| Feb 24, 2026 | Jeffrey Alan Jones Chief Medical Officer | CGEM Cullinan Therapeutics, Inc. | Sale | 4,582 | $14.47 | $66.3K Sale | Form 4 ↗ |
| Feb 24, 2026 | Jacquelyn L. Sumer Chief Legal Officer | CGEM Cullinan Therapeutics, Inc. | Sale | 3,601 | $14.47 | $52.1K Sale | Form 4 ↗ |
| Feb 23, 2026 | Jennifer Michaelson Chief Scientific Officer | CGEM Cullinan Therapeutics, Inc. | Sale | 1,752 | $13.99 | $24.5K Sale | Form 4 ↗ |
| Feb 20, 2026 | Mary Kay Fenton Chief Financial Officer | CGEM Cullinan Therapeutics, Inc. | Sale | 4,398 | $13.62 | $59.9K Sale | Form 4 ↗ |
| Feb 20, 2026 | Jeffrey Alan Jones Chief Medical Officer | CGEM Cullinan Therapeutics, Inc. | Sale | 4,982 | $13.62 | $67.9K Sale | Form 4 ↗ |
| Feb 20, 2026 | Jennifer Michaelson Chief Scientific Officer | CGEM Cullinan Therapeutics, Inc. | Sale | 8,000 | $14.30 | $114.4K Sale | Form 4 ↗ |
| Feb 20, 2026 | Jennifer Michaelson Chief Scientific Officer | CGEM Cullinan Therapeutics, Inc. | Sale | 3,742 | $13.62 | $51.0K Sale | Form 4 ↗ |
| Feb 20, 2026 | Jacquelyn L. Sumer Chief Legal Officer | CGEM Cullinan Therapeutics, Inc. | Sale | 3,742 | $13.62 | $51.0K Sale | Form 4 ↗ |
| Feb 20, 2026 | Ahmed Nadim President and CEO, Director | CGEM Cullinan Therapeutics, Inc. | Sale | 16,381 | $13.62 | $223.1K Sale | Form 4 ↗ |
| Feb 12, 2026 | Jennifer Michaelson Chief Scientific Officer | CGEM Cullinan Therapeutics, Inc. | Sale | 416 | $12.03 | $5,004 Sale | Form 4 ↗ |
| Jan 22, 2026 | Jennifer Michaelson Chief Scientific Officer | CGEM Cullinan Therapeutics, Inc. | Sale | 4,000 | $12.30 | $49.2K Sale | Form 4 ↗ |
| Dec 23, 2025 | Ahmed Nadim President and CEO, Director | CGEM Cullinan Therapeutics, Inc. | Sale | 9,922 | $10.01 | $99.3K Sale | Form 4 ↗ |
| Dec 19, 2025 | Jennifer Michaelson Chief Scientific Officer | CGEM Cullinan Therapeutics, Inc. | Sale | 1,345 | $10.01 | $13.5K Sale | Form 4 ↗ |
| Dec 18, 2025 | Jacquelyn L. Sumer Chief Legal Officer | CGEM Cullinan Therapeutics, Inc. | Sale | 3,480 | $9.67 | $33.7K Sale | Form 4 ↗ |
| Dec 18, 2025 | Jeffrey Alan Jones Chief Medical Officer | CGEM Cullinan Therapeutics, Inc. | Sale | 4,632 | $9.67 | $44.8K Sale | Form 4 ↗ |
| Dec 18, 2025 | Jennifer Michaelson Chief Scientific Officer | CGEM Cullinan Therapeutics, Inc. | Sale | 2,898 | $9.67 | $28.0K Sale | Form 4 ↗ |
| Dec 15, 2025 | Jennifer Michaelson Chief Scientific Officer | CGEM Cullinan Therapeutics, Inc. | Sale | 995 | $11.90 | $11.8K Sale | Form 4 ↗ |
| Dec 12, 2025 | Jennifer Michaelson Chief Scientific Officer | CGEM Cullinan Therapeutics, Inc. | Sale | 2,148 | $12.38 | $26.6K Sale | Form 4 ↗ |
| Nov 24, 2025 | Jennifer Michaelson Chief Scientific Officer | CGEM Cullinan Therapeutics, Inc. | Sale | 4,000 | $12.30 | $49.2K Sale | Form 4 ↗ |
| Oct 28, 2025 | Weston Nichols 10% owner | CGEM Cullinan Therapeutics, Inc. | Buy | 165,667 | $8.40 | $1.4M Buy | Form 4 ↗ |
| Oct 17, 2025 | Lynx1 Capital Management LP 10% owner | CGEM Cullinan Therapeutics, Inc. | Buy | 32,217 | $7.84 | $252.6K Buy | Form 4 ↗ |
| Oct 16, 2025 | Lynx1 Capital Management LP 10% owner | CGEM Cullinan Therapeutics, Inc. | Buy | 150,000 | $8.86 | $1.3M Buy | Form 4 ↗ |
| Oct 15, 2025 | Lynx1 Capital Management LP 10% owner | CGEM Cullinan Therapeutics, Inc. | Buy | 51,500 | $7.94 | $408.9K Buy | Form 4 ↗ |
| Oct 14, 2025 | Lynx1 Capital Management LP 10% owner | CGEM Cullinan Therapeutics, Inc. | Buy | 15,032 | $7.59 | $114.1K Buy | Form 4 ↗ |
| Oct 10, 2025 | Lynx1 Capital Management LP 10% owner | CGEM Cullinan Therapeutics, Inc. | Buy | 277,298 | $7.36 | $2.0M Buy | Form 4 ↗ |
| Oct 9, 2025 | Lynx1 Capital Management LP 10% owner | CGEM Cullinan Therapeutics, Inc. | Buy | 626,043 | $6.70 | $4.2M Buy | Form 4 ↗ |
| Oct 8, 2025 | Lynx1 Capital Management LP 10% owner | CGEM Cullinan Therapeutics, Inc. | Buy | 556,300 | $6.46 | $3.6M Buy | Form 4 ↗ |
| Feb 25, 2025 | Jeffrey Alan Jones Chief Medical Officer | CGEM Cullinan Therapeutics, Inc. | Sale | 4,895 | $8.53 | $41.8K Sale | Form 4 ↗ |
| Feb 25, 2025 | Jennifer Michaelson Chief Scientific Officer | CGEM Cullinan Therapeutics, Inc. | Sale | 3,756 | $8.53 | $32.0K Sale | Form 4 ↗ |
| Feb 25, 2025 | Ahmed Nadim President and CEO, Director | CGEM Cullinan Therapeutics, Inc. | Sale | 12,529 | $8.53 | $106.9K Sale | Form 4 ↗ |
| Feb 25, 2025 | Jacquelyn L. Sumer Chief Legal Officer | CGEM Cullinan Therapeutics, Inc. | Sale | 3,756 | $8.53 | $32.0K Sale | Form 4 ↗ |
| Jan 6, 2025 | Jennifer Michaelson Chief Scientific Officer | CGEM Cullinan Therapeutics, Inc. | Sale | 4,000 | $12.51 | $50.0K Sale | Form 4 ↗ |
| Dec 24, 2024 | Ahmed Nadim President and CEO, Director | CGEM Cullinan Therapeutics, Inc. | Sale | 8,400 | $11.87 | $99.7K Sale | Form 4 ↗ |
| Dec 18, 2024 | Jennifer Michaelson Chief Scientific Officer | CGEM Cullinan Therapeutics, Inc. | Sale | 4,693 | $11.41 | $53.5K Sale | Form 4 ↗ |
| Dec 18, 2024 | Jeffrey Alan Jones Chief Medical Officer | CGEM Cullinan Therapeutics, Inc. | Sale | 4,632 | $11.41 | $52.9K Sale | Form 4 ↗ |
| Dec 18, 2024 | Jacquelyn L. Sumer Chief Legal Officer | CGEM Cullinan Therapeutics, Inc. | Sale | 3,482 | $11.41 | $39.7K Sale | Form 4 ↗ |
| Dec 12, 2024 | Jennifer Michaelson Chief Scientific Officer | CGEM Cullinan Therapeutics, Inc. | Sale | 3,489 | $12.52 | $43.7K Sale | Form 4 ↗ |
| Nov 5, 2024 | Jennifer Michaelson Chief Scientific Officer | CGEM Cullinan Therapeutics, Inc. | Sale | 8,000 | $15.64 | $125.1K Sale | Form 4 ↗ |
48 items, most recent first (up to 50). Every row links to its original filing. Updated Nov 15, 2026, 6:01 PM EST.
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