Verastem holder files notice to sell 31,924 shares

Verastem Inc. is the issuer for a notice covering potential sales of its common stock by Robert Gagnon.

Rhea-AI Filing Summary

Verastem Inc. is the issuer for a notice covering potential sales of its common stock by Robert Gagnon. The notice lists up to 31,924 shares of common stock to be sold through Jefferies LLC, with an aggregate market value of $188,032.36 and a noted transaction date of July 23, 2026 on NASDAQ.

The shares relate to previously vested restricted stock units and vested stock options granted by Verastem Inc. The filing also lists sales during the prior three months, including two transactions of 20,103 shares each on May 27, 2026 and June 25, 2026, with sale values of $84,835.67 and $70,072.42 respectively.

Key Figures

Shares to be sold: 31,924 shares Aggregate market value: $188,032.36 Planned sale date: 07/23/2026 +4 more

7 metrics

Shares to be sold 31,924 shares Common stock to be sold through Jefferies LLC with NASDAQ listing

Aggregate market value $188,032.36 Market value associated with 31,924 Verastem common shares

Planned sale date 07/23/2026 Date noted for Verastem common stock sale on NASDAQ

Recent sale 1 20,103 shares for $84,835.67 Sale dated 05/27/2026 by Robert Gagnon in Verastem stock

Recent sale 2 20,103 shares for $70,072.42 Sale dated 06/25/2026 by Robert Gagnon in Verastem stock

Underlying vested RSUs 1,389 units Vested restricted stock units dated 05/22/2025 in Verastem stock

Underlying vested options 12,827; 5,208; 12,500 Vested stock options dated 12/31/2022, 05/15/2023, 06/18/2024

Key Terms

Vested Restricted Stock Units, Vested Stock Options, aggregate market value, Securities Sold During The Past 3 Months

4 terms

Vested Restricted Stock Units financial

"Common | 05/22/2025 | Vested Restricted Stock Units | Verastem Inc."

Vested Stock Options financial

"Common | 12/31/2022 | Vested Stock Options | Verastem Inc."

Vested stock options are the portions of an employee’s stock option grant that they have earned the right to buy at a predetermined price after meeting time or performance conditions. For investors, vested options matter because they can convert into actual shares that dilute existing ownership or signal insiders’ confidence when exercised or sold, much like a voucher that becomes redeemable and can change how many tickets are in circulation.

aggregate market value financial

"31924 | 188032.36 | 87870000 | 07/23/2026 | NASDAQ"

Aggregate market value is the combined price you would pay to buy all outstanding shares of a company or all companies in a group at current market prices — essentially the sum of each stock’s market capitalization. It matters to investors because it shows the overall size and weight of an investment or sector (like the total cost to buy every piece of a puzzle), helps compare scale across companies or markets, and influences index composition and risk exposure.

Securities Sold During The Past 3 Months regulatory

"144: Securities Sold During The Past 3 Months"

FAQ

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

What does Verastem Inc. (VSTM) disclose about shares to be sold?

The notice covers up to 31,924 shares of Verastem Inc. common stock to be sold through Jefferies LLC, with an aggregate market value of $188,032.36 and a noted date of July 23, 2026 on NASDAQ.

Who is the selling security holder in the Verastem Inc. (VSTM) Form 144?

The filing identifies Robert Gagnon as the person associated with the Verastem Inc. shares. His address is listed as 117 Kendrick St., Suite 500, Needham, MA 02494, and Verastem Inc. is named as the issuer of the common stock.

What recent share sales by Robert Gagnon in Verastem Inc. (VSTM) are reported?

The filing lists two past sales of 20,103 shares each of Verastem Inc. common stock, on May 27, 2026 and June 25, 2026, with reported values of $84,835.67 and $70,072.42 respectively over the past three months.

What types of Verastem Inc. (VSTM) awards underlie the shares to be sold?

The shares to be sold are tied to vested restricted stock units and vested stock options in Verastem Inc., including grants that vested on dates such as May 22, 2025, December 31, 2022, May 15, 2023, and June 18, 2024.

Which broker is listed for the Verastem Inc. (VSTM) shares to be sold?

The filing lists Jefferies LLC, located at 520 Madison Avenue, 4th Floor, New York, NY 10022, in connection with the Verastem Inc. common stock to be sold, with trading noted on NASDAQ.

What is the aggregate market value of Verastem Inc. (VSTM) stock covered by this sale notice?

The potential sale of 31,924 shares of Verastem Inc. common stock is associated with an aggregate market value of $188,032.36, according to the figures listed alongside the NASDAQ trading information.

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

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Available on EDGAR 07/23/2026 - 04:33 PM Accepted by SEC EDGAR 07/23/2026 - 04:32 PM Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001504983
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	Verastem, Inc.
SEC File Number	001-35403
Address of Issuer	117 KENDRICK STREET SUITE 500 NEEDHAM MASSACHUSETTS 02494
Phone	(781) 292-4200
Name of Person for Whose Account the Securities are To Be Sold	Gagnon Robert E.
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Director

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Jefferies LLC 520 Madison Avenue, 4th Floor New York NY 10022	31924	188032.36	87870000	07/23/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	05/22/2025	Vested Restricted Stock Units	Verastem Inc.			1389	05/22/2024	NA
Common	12/31/2022	Vested Stock Options	Verastem Inc.			12827	12/13/2022	NA
Common	05/15/2023	Vested Stock Options	Verastem Inc.			5208	05/15/2023	NA
Common	06/18/2024	Vested Stock Options	Verastem Inc.			12500	06/18/2024	NA

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Robert Gagnon 117 Kendrick St. Suite 500 Needham MA 02494	Verastem Inc	05/27/2026	20103	84835.67
Robert Gagnon 117 Kendrick St. Suite 500 Needham MA 02494	Verastem Inc	06/25/2026	20103	70072.42

144: Remarks and Signature

Remarks
Date of Notice	07/23/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	Robert Gagnon
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)