3,280 RSUs vest; James Burns sold 5,218 shares — AGIO (NASDAQ: AGIO)

Rhea-AI Filing Summary

AGIO filed a Form 144 reporting the vesting of 3,280 restricted stock units on 04/02/2026. The filing also records a prior sale of 5,218 shares by James Burns on 03/02/2026, shown under "Securities Sold During The Past 3 Months."

Insights

Securities Compliance Analyst

Routine Rule 144 notice showing RSU vesting and a recent insider sale.

The filing lists the vesting of 3,280 restricted stock units on 04/02/2026 and documents a sale of 5,218 shares by James Burns on 03/02/2026. This is a standard Form 144 disclosure of resale activity and vested awards.

Timing and mechanics such as whether shares are offered for resale under Rule 144 or held are not detailed here; subsequent filings or broker confirmations would show any resale execution. No material corporate action or proceeds destination is disclosed in the excerpt.

Key Figures

RSUs vesting: 3,280 shares Prior shares sold: 5,218 shares

2 metrics

RSUs vesting 3,280 shares Vesting of Restricted Stock Units on 04/02/2026

Prior shares sold 5,218 shares Sale by James Burns on 03/02/2026

Key Terms

Rule 144, Restricted Stock Units, Vesting

3 terms

Rule 144 regulatory

"Securities To Be Sold / Securities Sold During The Past 3 Months"

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

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.

Vesting financial

"Vesting of Restricted Stock Units on 04/02/2026"

Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.

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

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

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

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	3280	112143.00	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			3280	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
James Burns 88 Sidney Street Cambridge MA 02139	Common Stock	03/02/2026	5218	151113.00

144: Remarks and Signature

Remarks

Date of Notice

Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1

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

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What does AGIO's Form 144 report about RSUs?

The filing reports the vesting of 3,280 restricted stock units on 04/02/2026. It states the event (vesting) and the share count but does not describe any sale execution or proceeds destination in the provided excerpt.

Who sold shares recently according to this Form 144 for AGIO?

The filing shows that James Burns sold 5,218 shares on 03/02/2026. The table lists the sale under "Securities Sold During The Past 3 Months," with the transaction date and share count included.

Does the Form 144 indicate proceeds go to the company (AGIO)?

The excerpt does not state uses of proceeds or indicate the issuer received cash. It lists vesting and a prior sale; the document does not describe whether the company received any proceeds from the listed transactions.

Is this Form 144 a material corporate event for AGIO shareholders?

This appears to be a routine resale notice for vested awards and a recent insider sale. The excerpt provides transaction counts and dates but no information suggesting a material corporate event or change to company operations.