Verastem (VSTM) CEO Dan Paterson sells shares for RSU tax withholding

Rhea-AI Filing Summary

Verastem, Inc. reported an insider share sale by its President and CEO, Dan Paterson. On January 12, 2026, he sold 10,321 shares of Verastem common stock at a price of $7.16 per share.

According to the disclosure, this sale was made to satisfy statutory tax withholding requirements tied to the vesting of restricted stock units, meaning it was connected to equity compensation rather than an open-market discretionary sale. After this transaction, Paterson beneficially owned 400,104 shares of Verastem common stock directly.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

X

Check this box to indicate that a 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). See Instruction 10.

1. Name and Address of Reporting Person^*

Paterson Dan

(Last) (First) (Middle)

C/O VERASTEM, INC.,

117 KENDRICK ST., SUITE 500

(Street)

NEEDHAM MA 02494

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Verastem, Inc. [ VSTM ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	President and CEO

3. Date of Earliest Transaction (Month/Day/Year)
01/12/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	01/12/2026		S		10,321(1)	D	$7.16	400,104	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. 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.

	/s/ Daniel Calkins, Attorney in Fact	01/14/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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FAQ

Who is the insider involved in the latest Verastem (VSTM) Form 4 filing?

The filing reports a transaction by Dan Paterson, who is both a director and the President and CEO of Verastem, Inc.

How many Verastem (VSTM) shares did Dan Paterson sell and at what price?

On January 12, 2026, Dan Paterson sold 10,321 shares of Verastem common stock at a price of $7.16 per share.

Why did Verastem CEO Dan Paterson sell shares according to the Form 4?

The Form 4 footnote explains that the sale represents shares sold by the reporting person to satisfy statutory withholding requirements in connection with the vesting of restricted stock units.

How many Verastem (VSTM) shares does Dan Paterson own after the reported transaction?

Following the reported sale, Dan Paterson beneficially owned 400,104 shares of Verastem common stock in direct ownership.

What type of transaction code is shown in this Verastem (VSTM) Form 4 filing?

The transaction is coded as "S", indicating a sale of common stock as a non-derivative security.

Is the Verastem Form 4 transaction related to derivative securities or options?

The provided Form 4 excerpt lists activity only in Table I for common stock, and Table II for derivative securities shows no reported transactions.