GLUE files Form 144 to sell 18,683 shares

GLUE filed a Form 144 notice reporting an intended sale of 18,683 shares of Common Stock via a stock option exercise, dated 04/16/2026.

Rhea-AI Filing Summary

GLUE filed a Form 144 notice reporting an intended sale of 18,683 shares of Common Stock via a stock option exercise, dated 04/16/2026.

The filing lists prior sales by the same holder during the past three months including 25,164 shares on 02/27/2026 and 26,117 shares on 04/08/2026.

Insights

Insider Transactions Compliance Analyst

Notice of proposed insider sale via option exercise; prior open-market dispositions listed.

The Form 144 documents an intended sale of 18,683 shares through a stock option exercise dated 04/16/2026. It lists multiple prior dispositions by the reporting holder across February–April 2026.

Timing and final execution depend on regulatory and procedural steps for Rule 144 transactions; cash‑flow treatment is shown as Cash for the exercise. Subsequent SEC filings will show whether the sales were completed.

Key Figures

Intended sale: 18,683 shares Prior sale example: 25,164 shares Prior sale example: 26,117 shares +2 more

5 metrics

Intended sale 18,683 shares stock option exercise on 04/16/2026

Prior sale example 25,164 shares disposed on 02/27/2026

Prior sale example 26,117 shares disposed on 04/08/2026

Prior sale example 16,687 shares disposed on 04/13/2026

Proceeds reported (example row) $450,622.72 sale proceeds for 26,117 shares on 04/08/2026

Key Terms

Form 144, stock option exercise, Rule 144

3 terms

Form 144 regulatory

"filed a Form 144 notice reporting an intended sale"

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.

stock option exercise financial

"Securities To Be Sold shows Stock Option Exercise on 04/16/2026"

A stock option exercise is the act of using a previously granted right to buy shares of a company's stock at a specific, predetermined price by paying that price and receiving the shares. It matters to investors because exercising changes who owns the shares (which can dilute existing ownership), can trigger taxable events and shift potential gains or losses, and affects voting power and the company’s outstanding share count—like turning a voucher into an actual product that becomes part of circulating supply.

Rule 144 regulatory

"notice of an intended insider sale under Rule 144 procedures"

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.

FAQ

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

What does GLUE's Form 144 filing report?

It reports a proposed sale of 18,683 shares of common stock via a stock option exercise dated 04/16/2026. The form notifies the market of an intended insider sale under Rule 144 procedures.

Who appears as the selling holder in the GLUE filing?

The filing shows transactions associated with an individual listed as Edmund Dunn, including multiple sales reported in February–April 2026. The Form 144 lists that holder's proposed and recent sales by date and share count.

How many shares did the filing show were sold in the past three months?

The filing lists several dispositions: for example, 25,164 shares on 02/27/2026, 26,117 shares on 04/08/2026, and 16,687 shares on 04/13/2026. These are reported prior transactions by the holder.

Does the Form 144 confirm the sale was completed?

No; the Form 144 is a notice of an intended sale and does not by itself confirm completion. Subsequent SEC filings (e.g., Form 4 or transaction statements) would show completed sales or dispositions.

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

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Accepted by SEC EDGAR 04/16/2026 - 04:06 PM EDT 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	0001989401
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	MONTE ROSA THERAPEUTICS, INC.
SEC File Number	001-40522
Address of Issuer	321 Harrison Avenue Suite 900 Boston MASSACHUSETTS 02118
Phone	617-949-2643
Name of Person for Whose Account the Securities are To Be Sold	EDMUND DUNN
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	18683	345635.50	80015667	04/16/2026	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	04/16/2026	Stock Option Exercise	Issuer			18683	04/16/2026	Cash

* 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
EDMUND DUNN 321 Harrison Avenue Suite 900 Boston MA 02118	Common	04/13/2026	16687	300366.00
EDMUND DUNN 321 Harrison Avenue Suite 900 Boston MA 02118	Common	04/08/2026	26117	450622.72
Edmund Dunn 321 Harrison Avenue Suite 900 Boston MA 02118	Common	03/04/2026	139	2496.44
Edmund Dunn 321 Harrison Avenue Suite 900 Boston MA 02118	Common	03/02/2026	536	9380.00
Edmund Dunn 321 Harrison Avenue Suite 900 Boston MA 02118	Common	02/27/2026	25164	455506.15

144: Remarks and Signature

Remarks
Date of Notice	04/16/2026
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/ Edmund Dunn
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)