VSTM Form 4: Director sells 8,333 shares under Rule 10b5-1

Q: What insider transaction did Verastem (VSTM) report?

A director sold 8,333 shares of common stock on 10/09/2025 .

Q: What was the sale price in the Verastem (VSTM) Form 4?

The weighted average sale price was $9.06 per share, with trades between $8.70 and $9.33 .

Q: Was the Verastem (VSTM) sale under a trading plan?

Yes, it was effected under a Rule 10b5-1 trading plan.

Q: How many shares does the insider hold after the sale?

The reporting person directly owned 8,333 shares after the transaction.

Q: What is the insider’s relationship to Verastem (VSTM)?

The reporting person is a Director of Verastem, Inc.

Filing Impact

(Neutral)

Filing Sentiment

(Negative)

Form Type

Rhea-AI Filing Summary

Verastem, Inc. (VSTM): Director insider sale filed on Form 4. On 10/09/2025, the reporting person, a director, sold 8,333 shares of common stock in open-market transactions at a weighted average price of $9.06 per share under a Rule 10b5-1 trading plan. The trades occurred across prices ranging from $8.70 to $9.33. Following the transaction, the reporting person directly owned 8,333 shares.

Insider Trade Summary

Net Seller: 8,333 shares ($75,497)

Net Sell 1 txn

Insider Bunn Paul A.

Role Director

Sold 8,333 shs ($75K)

Type	Security	Shares	Price	Value
Sale	Common Stock	8,333	$9.06	$75K

Holdings After Transaction: Common Stock — 8,333 shares (Direct)

Footnotes (1)

The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $8.70 through $9.33, 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.

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

Add on Google

Form 4 Insider Transactions: What Each Field Means →

Accepted by SEC EDGAR 10/14/2025 - 04:31 PM

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).

1. Name and Address of Reporting Person^*

Bunn Paul A.

(Last)

(First)

(Middle)

C/O VERASTEM, INC.,

117 KENDRICK ST., SUITE 500

(Street)

NEEDHAM

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
	Officer (give title below)	Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
10/09/2025

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	10/09/2025		S⁽¹⁾		8,333⁽¹⁾	D	$9.06⁽²⁾	8,333	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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

Explanation of Responses:

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

2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $8.70 through $9.33, 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.

	/s/ Daniel Calkins, Attorney in Fact	10/14/2025
	** 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.

Source: View Original Filing on SEC EDGAR

FAQ

What insider transaction did Verastem (VSTM) report?

A director sold 8,333 shares of common stock on 10/09/2025.

What was the sale price in the Verastem (VSTM) Form 4?

The weighted average sale price was $9.06 per share, with trades between $8.70 and $9.33.

Was the Verastem (VSTM) sale under a trading plan?

Yes, it was effected under a Rule 10b5-1 trading plan.

How many shares does the insider hold after the sale?

The reporting person directly owned 8,333 shares after the transaction.

What is the insider’s relationship to Verastem (VSTM)?

The reporting person is a Director of Verastem, Inc.

What form reported the Verastem (VSTM) insider trade?

It was disclosed on Form 4.