Paul A. Bunn - 21 Nov 2025 Form 4 Insider Report for Verastem, Inc. (VSTM)

Role
Director
Signature
/s/ Daniel Calkins, Attorney in Fact
Issuer symbol
VSTM
Transactions as of
21 Nov 2025
Net transactions value
-$42,062
Form type
4
Filing time
25 Nov 2025, 17:35:55 UTC
Previous filing
14 Oct 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Bunn Paul A. Director C/O VERASTEM, INC., 117 KENDRICK ST.,, SUITE 500, NEEDHAM /s/ Daniel Calkins, Attorney in Fact 25 Nov 2025 0001868760

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction VSTM Common Stock Sale $62,500 -6,250 -75% $10.00 2,083 21 Nov 2025 Direct F1, F2
transaction VSTM Common Stock Options Exercise $20,438 +6,250 +300% $3.27 8,333 21 Nov 2025 Direct F1

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 VSTM Stock Options (right to buy) Options Exercise $0 -6,250 -50% $0.000000 6,250 21 Nov 2025 Common Stock 6,250 $3.27 Direct F1, 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:

Id Content
F1 The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.
F2 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $10.00 through $10.01, inclusive. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each price within the range set forth herein.
F3 The stock option vested in twelve equal installments (rounded down to the nearest whole share on each vesting date except with respect to the final vesting date on which the remaining unvested portion vested). The first eleven installments vested beginning on the last day of the month over the period from June, 2024 to April, 2025 and the last installment vested on the day before the 2025 Annual Meeting of Stockholders.