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Signature
-
/s/ Jacquelyn Sumer, Attorney-in-Fact
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Issuer symbol
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CGEM
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Transactions as of
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20 Feb 2026
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Net transactions value
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-$130,966
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Form type
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4
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Filing time
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23 Feb 2026, 17:00:06 UTC
Reporting Owners (1)
| Name |
Relationship |
Address |
Signature |
Signature date |
CIK |
| Michaelson Jennifer |
Chief Scientific Officer |
C/O CULLINAN THERAPEUTICS, INC., ONE MAIN STREET, SUITE 1350, CAMBRIDGE |
/s/ Jacquelyn Sumer, Attorney-in-Fact |
23 Feb 2026 |
0001838061 |
Transactions Table
| Type |
Sym |
Class |
Transaction |
Value $ |
Shares |
Change % |
* Price $ |
Shares After |
Date |
Ownership |
Footnotes |
| transaction |
CGEM |
Common Stock |
Sale |
$50,966 |
-3,742 |
-2% |
$13.62 |
181,977 |
20 Feb 2026 |
Direct |
F1 |
| transaction |
CGEM |
Common Stock |
Options Exercise |
$34,400 |
+8,000 |
+4.4% |
$4.30 |
189,977 |
20 Feb 2026 |
Direct |
|
| transaction |
CGEM |
Common Stock |
Sale |
$114,400 |
-8,000 |
-4.2% |
$14.30 |
181,977 |
20 Feb 2026 |
Direct |
F2 |
Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)
| Type |
Sym |
Class |
Transaction |
Value $ |
Shares |
Change % |
* Price $ |
Shares After |
Date |
Underlying Class |
Amount |
Exercise Price |
Ownership |
Footnotes |
| transaction |
CGEM |
Stock Option (Right to Buy) |
Options Exercise |
$0 |
-8,000 |
-6% |
$0.000000 |
124,987 |
20 Feb 2026 |
Common Stock |
8,000 |
$4.30 |
Direct |
F3 |
* An asterisk sign (*) next to the price indicates that the price is likely invalid.
Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.
Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).
Explanation of Responses: