Washington, D.C. 20549


Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB Number: 3235-0287
Estimated average burden
hours per response: 0.5
checkbox unchecked Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
1. Name and Address of Reporting Person*
Behbahani Ali

(Last) (First) (Middle)


(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
Monte Rosa Therapeutics, Inc. [ GLUE ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
checkbox checked Director checkbox checked 10% Owner
Officer (give title below) Other (specify below)
3. Date of Earliest Transaction (Month/Day/Year)
4. If Amendment, Date of Original Filed (Month/Day/Year)
6. Individual or Joint/Group Filing (Check Applicable Line)
checkbox checked Form filed by One Reporting Person
Form filed by More than One Reporting Person
Rule 10b5-1(c) Transaction Indication

checkbox unchecked Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Stock Option (Right to Buy) $4.16 06/12/2024 A 22,100 (1) 06/12/2034 Common Stock 22,100 $0 22,100 D
Explanation of Responses:
1. The shares subject to this option shall vest and become exercisable in full upon the earlier to occur of (i) June 12, 2025 or (ii) the Issuer's next annual meeting of stockholders, subject to the Reporting Person's continued service at such time.
/s/ Zachary Bambach, attorney-in-fact 06/13/2024
** Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.




KNOW ALL MEN BY THESE PRESENTS, that the undersigned hereby constitutes and appoints Zachary Bambach, Nicole Hatcher and Stephanie Brecher, and each of them, with full power to act without the others, his or her true and lawful attorney-in-fact, with full power of substitution, to sign any and all instruments, certificates and documents that may be necessary, desirable or appropriate to be executed on behalf of himself as an individual or in his or her capacity as a direct or indirect general partner, director, officer or manager of any partnership, corporation or limited liability company, pursuant to section 13 or 16 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and any and all regulations promulgated thereunder, including, without limitation, Forms 3, 4 and 5 and Schedules 13D and 13G (and any amendments thereto), and to file the same, with all exhibits thereto, and any other documents in connection therewith, with the Securities and Exchange Commission (the “SEC”), including, but not limited to, signing a Form ID for and on behalf of the undersigned and filing such Form ID with the SEC, and with any other entity when and if such is mandated by the Exchange Act or by the Financial Industry Regulatory Authority, granting unto said attorney-in-fact full power and authority to do and perform each and every act and thing necessary, desirable or appropriate, fully to all intents and purposes as he or she might or could do in person, thereby ratifying and confirming all that said attorney-in-fact, or his or her substitutes, may lawfully do or cause to be done by virtue hereof. This power of attorney is perpetual, unless revoked by the undersigned in a signed writing delivered to each of the foregoing attorneys-in-fact.


IN WITNESS WHEREOF, this Power of Attorney has been signed as of the 29th day of February, 2024.


/s/ Peter J. Barris

Peter J. Barris


/s/ Forest Baskett

Forest Baskett


/s/ Ali Behbahani

Ali Behbahani


/s/ Ronald D. Bernal

Ronald D. Bernal


/s/ Ann Bordetsky

Ann Bordetsky


/s/ Carmen Chang

Carmen Chang


/s/ Philip Chopin

Philip Chopin


/s/ Anthony A. Florence, Jr.

Anthony A. Florence, Jr.


/s/ Jonathan Golden

Jonathan Golden


/s/ Scott Gottlieb



Scott Gottlieb


/s/ Mark Hawkins

Mark Hawkins


/s/ Jeffrey R. Immelt

Jeffrey R. Immelt


/s/ Aaron Jacobson

Aaron Jacobson


/s/ Patrick J. Kerins

Patrick J. Kerins


/s/ Hilarie Koplow-McAdams

Hilarie Koplow-McAdams


/s/ Vanessa Larco

Vanessa Larco


/s/ Julio C. Lopez

Julio C. Lopez


/s/ Tiffany Le

Tiffany Le


/s/ Mohamad H. Makhzoumi

Mohamad H. Makhzoumi


/s/ Edward T. Mathers

Edward T. Mathers


/s/ Gregory Papadopoulos

Gregory Papadopoulos


/s/ Kavita Patel

Kavita Patel


/s/ Scott D. Sandell

Scott D. Sandell


/s/ A. Brooke Seawell

A. Brooke Seawell

/s/ Peter Sonsini

Peter Sonsini


/s/ Melissa Taunton

Melissa Taunton


/s/ Paul E. Walker



Paul E. Walker


/s/ Rick Yang

Rick Yang