CGEM
insider transactionsCullinan Therapeutics, Inc. — buys & sells by directors, officers and 10% owners A shareholder owning more than 10% of the company. Must report trades, but usually a weaker signal than an officer or director. (SEC Form 4).
Net shares · 90d
-8.0K
0 buy · 8.0K sell
Net value · 90d
-$117.0K
$0 in · $117.0K out
Sentiment · 90d
Net selling
0% buying · 100% selling
Open-market trades · 90d
2
0 buy · 8.0K sell
Net buy / sell volume
Not enough data to chart yet.
Tap or hover the chart for daily net volume. Green = net buying, red = net selling.
All transactions
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Grant·A
Director
$0
25.3K sh
Own New
-
Grant·A
Director
$0
25.3K sh
Own New
-
Grant·A
Director
$0
25.3K sh
Own New
-
Grant·A
Director
$0
25.3K sh
Own New
-
Grant·A
Director
$0
21.8K sh
Own New
-
Grant·A
Director
$0
21.8K sh
Own New
-
Exercise·M
Chief Scientific Officer · 10b5-1
$0
4.0K sh
Own +4%
-
Sell·S
Chief Scientific Officer · 10b5-1
$3.1K
200 sh · $15.58
Own -0%
-
Sell·S
Chief Scientific Officer · 10b5-1
$113.9K
7.8K sh · $14.60
Own -4%
-
Exercise·M
Chief Scientific Officer · 10b5-1
$17.2K
4.0K sh · $4.30
Own +2%
| Date▾ | Insider | Type | Shares | Value |
|---|---|---|---|---|
| Jun 16, 2026 | Anthony Rosenberg | Grant A | 25.3K | $0 |
| Jun 16, 2026 | David D. Meek | Grant A | 25.3K | $0 |
| Jun 16, 2026 | Stephen W Webster | Grant A | 25.3K | $0 |
| Jun 16, 2026 | Mary Thistle | Grant A | 25.3K | $0 |
| Jun 16, 2026 | Mittie Doyle | Grant A | 21.8K | $0 |
| Jun 16, 2026 | Andrew R Allen | Grant A | 21.8K | $0 |
| May 5, 2026 | Jennifer Michaelson 10b5-1 | Exercise M | 4.0K | $0 |
| May 5, 2026 | Jennifer Michaelson 10b5-1 | Sell S | 200 | $3.1K |
| May 5, 2026 | Jennifer Michaelson 10b5-1 | Sell S | 7.8K | $113.9K |
| May 5, 2026 | Jennifer Michaelson 10b5-1 | Exercise M | 4.0K | $17.2K |
About CGEM insider trading
This page tracks insider transactions for Cullinan Therapeutics, Inc. (CGEM) reported to the U.S. Securities and Exchange Commission on Form 4. Corporate insiders — directors, executive officers and beneficial owners of more than 10% of the stock — must disclose their trades within two business days. Open-market purchases (code P) and sales (code S) made at the insider's discretion are the most-watched opportunistic signals, while awards (A), option exercises (M) and tax-withholding (F) reflect compensation rather than conviction. Trades marked 10b5-1 were made under a pre-arranged plan and are considered routine. A cluster buy — several insiders buying within a short window — is historically a stronger bullish indicator than any single trade.