DEFA14A 1 d235425ddefa14a.htm DEFA14A DEFA14A





Washington, D.C. 20549




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Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934



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+OnlineGo to or scan the QR code — login details are located in the shaded bar below.Stockholder Meeting NoticeImportant Notice Regarding the Availability of Proxy Materials for the Amylyx Pharmaceuticals, Inc. Stockholder Meeting to be Held on Thursday, June 9, 2022.Under Securities and Exchange Commission rules, you are receiving this notice that the proxy materials for the annual stockholders’ meeting are available on the Internet. Follow the instructions below to view the materials and vote online or request a copy. The items to be voted on and location of the annual meeting are on the reverse side. Your vote is important! This communication presents only an overview of the more complete proxy materials that are available to you on the Internet. We encourage you to access and review all of the important information contained in the proxy materials before voting. The proxy statement and annual report to stockholders are available Online Access — View your proxy materials and vote.Step 1:                Go to Step 2:    Click on Cast Your Vote or Request Materials. Step 3:    Follow the instructions on the screen to log in.Step 4:    Make your selections as instructed on each screen for your delivery preferences. Step 5:    Vote your shares.When you go online, you can also help the environment by consenting to receive electronic delivery of future materials.Obtaining a Copy of the Proxy Materials – If you want to receive a copy of the proxy materials, you must request one. There is no charge to you for requesting a copy. Please make your request as instructed on the reverse side on or before May 30, 2022 to facilitate timely delivery.2NOT +03MSIC


Stockholder Meeting NoticeThe 2022 Annual Meeting of Stockholders of Amylyx Pharmaceuticals, Inc. will be held on Thursday, June 9, 2022, at 9:00 a.m. Eastern Time, virtually via the internet at To access the virtual meeting, you must have the information that is printed in the shaded bar located on the reverse side of this form.Proposals to be voted on at the meeting are listed below along with the Board of Directors’ recommendations.The Board of Directors recommend a vote FOR all the nominees listed and FOR Proposal 2:                1. Election of Directors: To elect the following persons to our board of directors, each to serve as a Class I director until the 2025 Annual Meeting of Stockholders and until their successor has been duly elected and qualified, or until such director’s earlier death, resignation or removal:                01—Justin Klee                02—Isaac Cheng, M.D.                2. To ratify the appointment of Deloitte & Touche LLP as our independent registered public accounting firm for the fiscal year ending December 31, 2022.PLEASE NOTE – YOU CANNOT VOTE BY RETURNING THIS NOTICE. To vote your shares you must go online or request a paper copy of the proxy materials to receive a proxy card. If you wish to attend and vote at the meeting, please bring this notice with you.Here’s how to order a copy of the proxy materials and select delivery preferences: Current and future delivery requests can be submitted using the options below. If you request an email copy, you will receive an email with a link to the current meeting materials.PLEASE NOTE: You must use the number in the shaded bar on the reverse side when requesting a copy of the proxy materials.—    Internet – Go to Click Cast Your Vote or Request Materials.—    Phone – Call us free of charge at 1-866-641-4276.—    Email – Send an email to with “Proxy Materials Amylyx Pharmaceuticals, Inc.” in the subject line. Include your full name and address, plus the number located in the shaded bar on the reverse side, and state that you want a paper copy of the meeting materials.                To facilitate timely delivery, all requests for a paper copy of proxy materials must be received by May 30, 2022.