Monte Rosa insider files Form 144 showing reported sales

Monte Rosa Therapeutics reported insider Form 144 activity by Markus Warmuth indicating reported sales of company securities.

Rhea-AI Filing Summary

Monte Rosa Therapeutics reported insider Form 144 activity by Markus Warmuth indicating reported sales of company securities. The filing lists multiple reported transactions dated 03/02/2026, 04/14/2026, and 05/01/2026 with numeric entries 54,66, 8,000, and 5,467 respectively and associated amounts shown in the excerpt. It also lists a Stock Award (RSU) of 21,865 dated 01/02/2025 with a related date 01/02/2026.

Insights

Securities Compliance Analyst

Form 144 lists reported insider dispositions and a prior RSU grant.

The excerpt shows multiple reported transactions by Markus Warmuth with dates and numeric entries alongside dollar-format figures. These entries are presented as reported sales/dispositions on a Form 144-style excerpt and include an RSU award line.

Filing-level details such as exact share counts, per-share prices, and whether transactions were open-market or pursuant to tax withholding are not fully parsed in the excerpt; subsequent filings or broker records would show precise mechanics.

Key Figures

RSU stock award: 21,865 shares Reported transaction date: 03/02/2026 Reported transaction date: 04/14/2026 +1 more

4 metrics

RSU stock award 21,865 shares Stock Award dated 01/02/2025 with related date 01/02/2026

Reported transaction date 03/02/2026 Entry associated with numeric value 5466 and amount 97,974.22

Reported transaction date 04/14/2026 Entry associated with numeric value 8000 and amount 141,124.80

Reported transaction date 05/01/2026 Entry associated with numeric value 5467 and amount 103,446.63

Key Terms

Form 144, RSU, Compensation

3 terms

Form 144 regulatory

"Filer Information | 144: Filer Information"

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.

RSU financial

"RSU | 01/02/2025 | Stock Award | From Issuer"

Restricted stock units (RSUs) are a form of company shares given to employees as part of their compensation, usually with certain restrictions or conditions, such as remaining with the company for a set period. When these restrictions lift, employees receive actual shares that they can sell or hold. For investors, RSUs can impact a company's stock supply and reflect the company's commitment to attracting and retaining talent.

Compensation financial

"Stock Award | From Issuer | 21865 | 01/02/2026 | Compensation"

FAQ

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

What does the Form 144 filing for GLUE show?

It reports multiple reported transactions by Markus Warmuth, including sales dated 03/02/2026, 04/14/2026, and 05/01/2026. The excerpt also lists a 21,865 RSU stock award dated 01/02/2025 with a related date of 01/02/2026.

How many RSUs are listed in the filing for GLUE?

The excerpt lists a Stock Award (RSU) of 21,865 with an award date of 01/02/2025 and an associated date of 01/02/2026. The filing format indicates this award appears under compensation disclosures.

Who is the reporting person in the GLUE Form 144 excerpt?

The reporting person shown is Markus Warmuth, with an address at 321 Harrison Ave, Suite 900, Boston MA. Multiple transaction lines in the excerpt are attributed to him with corresponding dates and numeric entries.

What transaction dates are listed in the excerpt for GLUE sales?

The excerpt lists reported transaction dates of 03/02/2026, 04/14/2026, and 05/01/2026 associated with Markus Warmuth. Each date is paired with numeric entries and dollar-format numbers in the provided lines.

Do the listed numbers show proceeds or share counts in the GLUE excerpt?

The excerpt presents numeric values and dollar-format figures adjacent to each transaction line, but the excerpt does not explicitly label each field in plain-English. The lines include figures such as 54,66, 8,000, and 103,446.63 tied to the listed dates.

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

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Accepted by SEC EDGAR 06/01/2026 - 04:29 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	0001855643
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	Warmuth Markus
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	Rockefeller Capital Management 500 Boylston Street Suite 1300 Boston MA 02116	5466	106253.03	84479418	06/01/2026	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 *
RSU	01/02/2025	Stock Award	From Issuer			21865	01/02/2026	Compensation

* 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
Markus Warmuth 321 Harrison Ave, Suite 900 Boston MA 02118	Monte Rosa Therapeutics Inc	03/02/2026	5466	97974.22
Markus Warmuth 321 Harrison Ave, Suite 900 Boston MA 02118	Monte Rosa Therapeutics Inc	04/14/2026	8000	141124.80
Markus Warmuth 321 Harrison Ave, Suite 900 Boston MA 02118	Monte Rosa Therapeutics Inc	05/01/2026	5467	103446.63

144: Remarks and Signature

Remarks
Date of Notice	06/01/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	05/14/2025
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	Carmen Zamores as a duly authorized representative of National Financial Services LLC, as attorney-in-fact for Warmuth Markus
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)