Daniel Calkins - Sep 22, 2025 Form 4 Insider Report for Verastem, Inc. (VSTM)

Signature
/s/ Daniel Calkin
Stock symbol
VSTM
Transactions as of
Sep 22, 2025
Transactions value $
-$748
Form type
4
Date filed
9/24/2025, 04:30 PM
Previous filing
Jun 24, 2025

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Calkins Daniel Chief Financial Officer C/O VERASTEM, INC.,, 117 KENDRICK ST., SUITE 500, NEEDHAM /s/ Daniel Calkin 2025-09-24 0001951861

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction VSTM Common Stock Sale -$518 -57 -0.05% $9.08 110K Sep 22, 2025 Direct F1
transaction VSTM Common Stock Sale -$231 -25 -0.02% $9.23 110K Sep 24, 2025 Direct F1
* 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:

Id Content
F1 The sale reported on this Form 4 represents shares sold by the Reporting Person to satisfy statutory withholding requirements in connection with the vesting of restricted stock units.