AGIO insider plans sale of 30,000 common shares

AGIO insider Sarah Gheuens filed a notice to sell up to 30,000 shares of common stock through Morgan Stanley Smith Barney LLC Executive Financial Services on the NASDAQ, with a proposed sale date of 08/04/2026.

Rhea-AI Filing Summary

AGIO insider Sarah Gheuens filed a notice to sell up to 30,000 shares of common stock through Morgan Stanley Smith Barney LLC Executive Financial Services on the NASDAQ, with a proposed sale date of 08/04/2026. The shares relate to prior equity awards, including 14,169 restricted stock units granted on 12/02/2020 and 15,831 performance shares granted on 04/14/2020. The filing also reports a recent sale of 4,007 shares for $150,517.75 on 07/01/2026.

Key Figures

Planned shares to be sold: 30,000 shares Approximate market value of planned sale: $914,283.00 Recent shares sold: 4,007 shares +3 more

6 metrics

Planned shares to be sold 30,000 shares Common stock to be sold through Morgan Stanley Smith Barney LLC on NASDAQ

Approximate market value of planned sale $914,283.00 Market value associated with 30,000 common shares in the Form 144

Recent shares sold 4,007 shares Common shares sold on 07/01/2026 during the past 3 months

Proceeds from recent sale $150,517.75 Sale of 4,007 common shares on 07/01/2026

Restricted stock units 14,169 shares Restricted Stock granted on 12/02/2020 linked to the securities to be sold

Performance shares 15,831 shares Performance Shares granted on 04/14/2020 linked to the securities to be sold

Key Terms

Form 144, Restricted Stock, Performance Shares, Executive Financial Services

4 terms

Form 144 regulatory

"144: Securities To Be Sold"

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.

Restricted Stock financial

"Common | 12/02/2020 | Restricted Stock | Issuer"

Shares granted to an individual that carry limits on transfer or sale until certain conditions are met, such as staying with the company for a set time or hitting performance targets. Think of them as a locked gift that gradually opens; for investors they matter because they affect how many shares may enter the market later, signal management incentives and potential dilution, and reveal confidence in future company performance.

Performance Shares financial

"Common | 04/14/2020 | Performance Shares | Issuer"

Performance shares are a type of company stock given to executives or employees that only become theirs if the company meets specific goals, like hitting certain profits or growth targets. They motivate leaders to work toward the company’s success, because their additional shares depend on achieving these results.

Executive Financial Services financial

"Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza"

FAQ

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

What does the Form 144 filing by AGIO insider Sarah Gheuens disclose?

Sarah Gheuens filed to sell up to 30,000 shares of AGIO common stock. The shares are to be sold through Morgan Stanley Smith Barney LLC Executive Financial Services on the NASDAQ with a proposed sale date of 08/04/2026.

How many AGIO shares is Sarah Gheuens planning to sell under this Form 144?

The filing covers up to 30,000 shares of AGIO common stock. These shares are connected to prior equity awards, including restricted stock and performance shares granted in 2020.

Which broker is handling Sarah Gheuens’ planned AGIO share sale?

The planned sale of up to 30,000 AGIO shares will be handled by Morgan Stanley Smith Barney LLC Executive Financial Services, located at 1 New York Plaza, 8th Floor, New York, NY 10004.

What prior AGIO stock sales by Sarah Gheuens are reported in the last 3 months?

The filing reports that on 07/01/2026, Sarah Gheuens sold 4,007 shares of AGIO common stock for total proceeds of $150,517.75. This is disclosed in the "Securities Sold During The Past 3 Months" section.

What equity awards underlie the AGIO shares in Sarah Gheuens’ Form 144?

The Form 144 links the planned sale to 14,169 restricted stock units granted on 12/02/2020 and 15,831 performance shares granted on 04/14/2020, both originally issued by the company.

On which market are Sarah Gheuens’ AGIO shares expected to be sold?

The common shares covered by the Form 144 are expected to be sold on the NASDAQ market. The filing lists NASDAQ as the trading market for the 30,000 shares of AGIO common stock.

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

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Available on EDGAR 08/04/2026 - 04:09 PM Accepted by SEC EDGAR 08/04/2026 - 04:08 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 St. Cambridge MASSACHUSETTS 02139
Phone	617-649-8600
Name of Person for Whose Account the Securities are To Be Sold	SARAH GHEUENS
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	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	30000	914283.00	59701882	08/04/2026	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	12/02/2020	Restricted Stock	Issuer			14169	12/02/2020	Not Applicable
Common	04/14/2020	Performance Shares	Issuer			15831	04/14/2020	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 St. Cambridge MA 02139	Common	07/01/2026	4007	150517.75

144: Remarks and Signature

Remarks	The securities to be sold were acquired upon the vesting of restricted stock during the period of 12/02/2020 through 02/10/2024. The securities to be sold were acquired upon the vesting of performance shares during the period of 04/14/2020 through 01/22/2024.
Date of Notice	08/04/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	05/01/2026
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	/s/ Sarah Gheuens
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)