Monte Rosa Therapeutics stockholders approve officer liability amendment, elect directors

As further described in Item 5.07 to this Current Report on Form 8-K, at the Annual Meeting, the Company’s stockholders approved an amendment (the “Amendment”) to the Company’s Fourth Amended and Restated Certificate of Incorporation to limit the liability of certain officers of the Company as permitted by recent amendments to Delaware law. On June 14, 2023, the Company filed a Certificate of Amendment to the Company’s Fourth Amended and Restated Certificate of Incorporation (the “Certificate of Amendment”) with the Secretary of State of the State of Delaware and the Certificate of Amendment became effective on filing.

The stockholders of the Company elected Andrew Schiff, M.D. and Chandra P. Leo as Class II directors of the Company, for a three-year term ending at the annual meeting of stockholders to be held in 2026 and until their successor have been duly elected and qualified or until their earlier resignation or removal. The results of the stockholders’ vote with respect to the election of the Class II directors were as follows: Votes For Votes Withheld Broker Non-Votes Andrew Schiff, M.D. 41,135,067 1,941,267 2,225,742 Chandra P. Leo 42,883,895 192,439 2,225,742

The stockholders of the Company ratified the selection of Deloitte & Touche LLP as the Company’s independent registered public accounting firm for the fiscal year ending December 31, 2023. The results of the stockholders’ vote with respect to such ratification were as follows: Votes Votes For Against Abstain 45,290,642 2,698 8,736

The stockholders of the Company approved the amendment to the Company’s Fourth Amended and Restated Certificate of Incorporation to limit the liability of certain officers of the Company as permitted by recent amendments to Delaware law. The results of the stockholders’ vote with respect to such approval were as follows: Votes Votes Broker For Against Abstain Non-votes 42,500,758 567,676 7,900 2,225,742