Verastem CEO sells 2,000 shares at $10 under Rule 10b5-1

Verastem (VSTM) disclosed insider transactions by its President and CEO, reported as a director and officer.

Accepted by SEC EDGAR 11/06/2025 - 12:21 PM EST Learn about SEC filing dates

Rhea-AI Filing Summary

Verastem (VSTM) disclosed insider transactions by its President and CEO, reported as a director and officer. On 11/03/2025, the reporting person sold 1,299 shares at $9.35 to satisfy statutory tax withholding tied to RSU vesting, and separately sold 2,000 shares at $10.00 pursuant to a Rule 10b5-1 trading plan. Following these transactions, the reporting person beneficially owned 438,818 shares, held directly.

Insider Trade Summary

Net Seller: 3,299 shares

Net Sell 2 txns

Insider Paterson Dan

Role President and CEO

Sold 3,299 shs ($32K)

Type	Security	Shares	Price	Value
Sale	Common Stock	1,299	$9.35	$12K
Sale	Common Stock	2,000	$10.00	$20K

Holdings After Transaction: Common Stock — 438,818 shares (Direct)

Footnotes (2)

1. 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.
2. F2. The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did VSTM disclose in this Form 4?

The President and CEO reported selling 1,299 shares at $9.35 for tax withholding on RSU vesting and 2,000 shares at $10.00 under a Rule 10b5-1 plan on 11/03/2025.

How many VSTM shares does the reporting person own after the transactions?

Following the reported sales, the reporting person beneficially owned 438,818 shares, held directly.

Why were 1,299 VSTM shares sold at $9.35?

The 1,299 shares were sold to satisfy statutory withholding requirements related to the vesting of restricted stock units.

Were any sales made under a pre-arranged plan?

Yes. The 2,000 shares sold at $10.00 were executed under a Rule 10b5-1 trading plan adopted by the reporting person.

What roles does the reporting person hold at Verastem (VSTM)?

The reporting person serves as a Director and as President and CEO.

What was the transaction date for the reported sales?

Both transactions occurred on 11/03/2025.

AI-generated analysis. How Rhea-AI works. Not financial advice.

Form 4 Insider Transactions: What Each Field Means →

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

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

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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)
11/03/2025

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	11/03/2025		S(1)		1,299(1)	D	$9.35	440,818	D
Common Stock	11/03/2025		S(2)		2,000(2)	D	$10	438,818	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.

2. The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

	/s/ Daniel Calkins, Attorney in Fact	11/06/2025
	** 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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.