AGIO files Form 144 to sell 2,940 vested shares

AGIO Pharmaceuticals reported a proposed sale of 2,940 shares of Common Stock under a Form 144 notice dated 04/02/2026, arising from the vesting of Restricted Stock Units.

Rhea-AI Filing Summary

AGIO Pharmaceuticals reported a proposed sale of 2,940 shares of Common Stock under a Form 144 notice dated 04/02/2026, arising from the vesting of Restricted Stock Units. The filing also reports a prior sale of 4,055 shares on 03/02/2026.

The Form 144 lists the broker Morgan Stanley Smith Barney LLC and shows monetary figures adjacent to the share entries. The filing documents a routine affiliate sale notice tied to RSU vesting.

Insights

Securities Compliance Analyst

Routine Form 144 sale notice for vested RSUs by an affiliate.

The filing lists a proposed sale of 2,940 shares of Common Stock dated 04/02/2026, attributed to the vesting of Restricted Stock Units and routed through Morgan Stanley Smith Barney LLC. Form 144 is a regulatory notice for affiliates intending to sell restricted or control securities.

Prior activity includes a reported sale of 4,055 shares on 03/02/2026. This pattern is consistent with routine liquidity after vesting; cash‑flow recipients and exact sale timing are not detailed in the excerpt.

Key Figures

Proposed shares to be sold: 2,940 shares Shares sold in past 3 months: 4,055 shares Monetary figure (line item): 100,519.00 +2 more

5 metrics

Proposed shares to be sold 2,940 shares Securities To Be Sold, <date>04/02/2026</date>

Shares sold in past 3 months 4,055 shares Securities Sold During The Past 3 Months, <date>03/02/2026</date>

Monetary figure (line item) 100,519.00 Amount adjacent to securities entry in the filing

Monetary figure (past sale) 117,433.00 Amount adjacent to past-sale entry in the filing

Broker Morgan Stanley Smith Barney LLC Listed as broker on the Form 144 cover entries

Key Terms

Restricted Stock Units, Form 144, Securities Sold During The Past 3 Months

3 terms

Restricted Stock Units financial

"Vesting of Restricted Stock Units"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

Form 144 regulatory

"Securities To Be Sold section of Form 144"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

Securities Sold During The Past 3 Months regulatory

"Section listing prior sale of 4,055 shares on 03/02/2026"

FAQ

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

What does AGIO's Form 144 show about the 04/02/2026 transaction?

The Form 144 lists a proposed sale of 2,940 shares of Common Stock dated 04/02/2026. It attributes the shares to the vesting of Restricted Stock Units and names Morgan Stanley Smith Barney LLC as the broker.

Who is the reporting person on the AGIO Form 144 and what prior sales are listed?

The filing lists Sarah Gheuens with an address in Cambridge, MA. It records a prior sale of 4,055 shares on 03/02/2026 in the 'Securities Sold During The Past 3 Months' section.

Does the Form 144 disclose monetary values for the listed transactions?

The excerpt includes numeric values 100,519.00 and 117,433.00 adjacent to share lines, which appear to be monetary figures shown in the filing. The excerpt does not tie those numbers to specific proceeds language.

Is this Form 144 an unusual filing or routine for RSU vesting at AGIO?

This appears routine: the filing documents a proposed sale tied to the vesting of RSUs. The presence of prior sales in the past three months suggests routine liquidity rather than a novel corporate event.

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

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Accepted by SEC EDGAR 04/02/2026 - 04:03 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	0001881190
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	AGIOS PHARMACEUTICALS, INC.
SEC File Number	001-36014
Address of Issuer	88 SIDNEY STREET CAMBRIDGE MASSACHUSETTS 02139
Phone	617-649-8600
Name of Person for Whose Account the Securities are To Be Sold	Gheuens Sarah
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	Officer

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 Stock	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	2940	100519.00	58592172	04/02/2026	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 Stock	04/02/2026	Vesting of Restricted Stock Units	Issuer			2940	04/02/2026	Not Applicable

* 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
Sarah Gheuens 88 Sidney Street Cambridge MA 02139	Common Stock	03/02/2026	4055	117433.00

144: Remarks and Signature

Remarks
Date of Notice	04/02/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	03/01/2024
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	William Cook, attorney-in-fact for Sarah Gheuens
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)