UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

x   Filed by the Registrant

¨    Filed by a Party other than the Registrant

Check the appropriate box:

¨ Preliminary Proxy Statement

¨ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

¨ Definitive Proxy Statement

x Definitive Additional Materials

¨ Soliciting Material under §240.14a-12

​ 

COGNITION THERAPEUTICS, INC.

​(Name of Registrant as Specified in its Charter)

Payment of Filing Fee (Check the appropriate box):

x No fee required.

¨ Fee paid previously with preliminary materials.

¨ Fee computed on table in Exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11.

Your Vote Counts! Get informed before you vote View the Notice of Proxy Statement, Annual Report,1234567890123456789012345678901234567890, 123456789012345678 9012345678901234567890, 1234567890123456789012345678901234567890, 12345678901234567890123456789012345 67890 online OR you can receive a free paper copy of voting material(s) by requesting prior to <matcutoff>. If you would like to request a copy of the voting material(s), you may (1) visit www.ProxyVote.com, (2) call 1-800-579-1639 or (3) send an email to sendmaterial@proxyvote.com. If sending an email, please include your control number (indicated below) in the subject line. Smartphone users Point your camera here and vote without entering a control number For complete information and to vote, visit www.ProxyVote.com Control # FLASHID-JOB# Ricky Campana P.O. Box 123456 Suite 500 51 Mercedes Way Edgewood, NY 11717 148,294 322,224 1 OF 2 30# XXXX XXXX XXXX XXXX COGNITION THERAPEUTICS, INC. 2024 Annual Meeting Vote by June 06, 2024 11:59 PM ET COGNITION THERAPEUTICS, INC. 2500 WESTCHESTER AVENUE PURCHASE, NY 10577 You invested in COGNITION THERAPEUTICS, INC. and it's time to vote! You have the right to vote on proposals being presented at the Annual Meeting. This is an important notice regarding the availability of proxy material for the stockholder meeting to be held on June 07, 2024. View the Proxy Statement, Form 10-K online OR you can receive a free paper or email copy of the material(s) by requesting prior to May 24, 2024. If you would like to request a copy of the material(s) for this and/or future stockholder meetings, you may (1) visit www.ProxyVote.com, (2) call 1-800-579-1639 or (3) send an email to sendmaterial@proxyvote.com. If sending an email, please include your control number (indicated below) in the subject line. Unless requested, you will not otherwise receive a paper or email copy. Vote Virtually at the Meeting* June 07, 2024 9:00 AM EDT Virtually at: www.virtualshareholdermeeting.com/CGTX2024 *Please check the meeting materials for any special requirements for meeting attendance.

THIS IS NOT A VOTABLE BALLOT This is an overview of the proposals being presented at the upcoming shareholder meeting. Please follow the instructions on the reverse side to vote these important matters. Vote at www.ProxyVote.com Prefer to receive an email instead? While voting on www.ProxyVote.com, be sure to click “Sign up for E-delivery”. Voting Items Board Recommends FLASHID-JOB# Control # XXXX XXXX XXXX XXXX THE COMPANY NAME INC. - COMMON ASDFGHJKL 123456789.1234 THE COMPANY NAME INC. - CLASS A 123456789.1234 THE COMPANY NAME INC. - CLASS B 123456789.1234 THE COMPANY NAME INC. - CLASS C 123456789.1234 THE COMPANY NAME INC. - CLASS D 123456789.1234 THE COMPANY NAME INC. - CLASS E 123456789.1234 THE COMPANY NAME INC. - CLASS F 123456789.1234 THE COMPANY NAME INC. - 401 K 123456789.1234 SHARE CLASSES REPRESENTED FOR VOTING This is an overview of the proposals being presented at the upcoming stockholder meeting. Please follow the instructions on the reverse side to vote these important matters. 1. Election of Class III Directors for a Three-Year Term Expiring in 2027. Nominees: 01) Jack A. Khattar 02) Brett P. Monia, Ph.D. For 2. Ratification of Appointment of Ernst & Young LLP as the company's Independent Registered Public Accounting Firm for 2024. For NOTE: Such other business as may properly come before the meeting or any adjournment thereof.