CGEMHealthcareSmall-Cap
Cullinan Therapeutics, Inc. Insider Trading Activity
Every SEC Form 4 insider transaction reported for Cullinan Therapeutics, Inc. (CGEM), sourced directly from SEC EDGAR and updated as new filings are accepted.
By Trabud Research Team · SEC Form 4 & insider trading data analysts
Last updated:
Quick Answer
Are CGEM insiders buying or selling?
Cullinan Therapeutics, Inc. insiders reported 12 open-market buys ($51.6M) and 118 sells ($36.6M) across 130 Form 4 filings — a net buying position of $15.0M.
Source: SEC EDGAR Form 4
Key Statistics (as of Jul 7, 2026)
Total Form 4 filings
130
SEC EDGAR
Insider filers
17
Insider buys (12)
$51.6M
Insider sells (118)
$36.6M
Insider sentiment
Net buyingNet insider flow of $15.0M in net buying.
Recent CGEM insider transactions
| Date | Insider | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jul 7, 2026 | Jennifer Michaelson | Chief Scientific Officer | Sale | 8.0K | $17.82 | $142.6K |
| May 6, 2026 | Jennifer Michaelson | Chief Scientific Officer | Sale | 8.0K | $14.62 | $117.0K |
| Mar 9, 2026 | Jennifer Michaelson | Chief Scientific Officer | Sale | 8.0K | $15.68 | $125.4K |
| Feb 26, 2026 | Jennifer Michaelson | Chief Scientific Officer | Sale | 1.8K | $14.14 | $25.2K |
| Feb 25, 2026 | Jennifer Michaelson | Chief Scientific Officer | Sale | 5.4K | $14.31 | $76.6K |
| Feb 25, 2026 | Nadim Ahmed | President and CEO | Sale | 13.5K | $14.47 | $195.6K |
| Feb 25, 2026 | Jeffrey Alan Jones | Chief Medical Officer | Sale | 4.6K | $14.47 | $66.3K |
| Feb 25, 2026 | Jacquelyn L Sumer | Chief Legal Officer | Sale | 3.6K | $14.47 | $52.1K |
| Feb 23, 2026 | Jeffrey Alan Jones | Chief Medical Officer | Sale | 5.0K | $13.62 | $67.9K |
| Feb 23, 2026 | Jennifer Michaelson | Chief Scientific Officer | Sale | 11.7K | $14.08 | $165.4K |
| Feb 23, 2026 | Jacquelyn L Sumer | Chief Legal Officer | Sale | 3.7K | $13.62 | $51.0K |
| Feb 23, 2026 | Nadim Ahmed | President and CEO | Sale | 16.4K | $13.62 | $223.1K |
| Feb 23, 2026 | Mary Kay Fenton | Chief Financial Officer | Sale | 4.4K | $13.62 | $59.9K |
| Feb 13, 2026 | Jennifer Michaelson | Chief Scientific Officer | Sale | 416 | $12.03 | $5.0K |
| Jan 23, 2026 | Jennifer Michaelson | Chief Scientific Officer | Sale | 4.0K | $12.30 | $49.2K |
| Dec 29, 2025 | Nadim Ahmed | President and CEO | Sale | 9.9K | $10.01 | $99.3K |
| Dec 22, 2025 | Jennifer Michaelson | Chief Scientific Officer | Sale | 1.3K | $10.01 | $13.5K |
| Dec 19, 2025 | Jacquelyn L Sumer | Chief Legal Officer | Sale | 3.5K | $9.67 | $33.7K |
| Dec 19, 2025 | Jeffrey Alan Jones | Chief Medical Officer | Sale | 4.6K | $9.67 | $44.8K |
| Dec 19, 2025 | Jennifer Michaelson | Chief Scientific Officer | Sale | 2.9K | $9.67 | $28.0K |
| Dec 16, 2025 | Jennifer Michaelson | Chief Scientific Officer | Sale | 3.1K | $12.23 | $38.4K |
| Nov 25, 2025 | Jennifer Michaelson | Chief Scientific Officer | Sale | 4.0K | $12.30 | $49.2K |
| Oct 30, 2025 | Lynx1 Capital Management LP | 10% Owner | Purchase | 165.7K | $8.40 | $1.4M |
| Oct 21, 2025 | Lynx1 Capital Management LP | 10% Owner | Purchase | 248.7K | $8.46 | $2.1M |
| Oct 10, 2025 | Lynx1 Capital Management LP | 10% Owner | Purchase | 1.5M | $6.73 | $9.8M |
Showing the 25 most recent of 130 Form 4 filings for Cullinan Therapeutics, Inc..
Most active CGEM insiders
- Jennifer Michaelson39 filings
- Jeffrey Trigilio13 filings
- Jacquelyn L Sumer11 filings
- Jeffrey Alan Jones11 filings
- Nadim Ahmed11 filings
Ask anything about CGEM insider activity
Use Trabud's AI agent to query Cullinan Therapeutics, Inc.'s Form 4 history in plain English — "Show me CGEM CEO purchases this year" or compare it against any other ticker.
Open the AI agentCGEM insider trading FAQ
Are Cullinan Therapeutics, Inc. insiders buying or selling?
Across 130 SEC Form 4 filings, Cullinan Therapeutics, Inc. (CGEM) insiders reported 12 open-market purchases totaling $51.6M and 118 sales totaling $36.6M. That is a net buying position of $15.0M.
How many insiders trade CGEM stock?
17 distinct insider filers — officers, directors, 10%+ owners, and investment groups filing jointly — have reported Form 4 transactions for Cullinan Therapeutics, Inc.. The most recent filing was accepted on Jul 7, 2026.
Where does Trabud get CGEM insider trading data?
All CGEM insider trading data comes directly from official SEC EDGAR Form 4 filings, which corporate insiders must submit within two business days of a transaction under Section 16(a) of the Securities Exchange Act of 1934.
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