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

FORM 8-K

CURRENT REPORT
Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934
Date of Report (Date of earliest event reported)June 3, 2026

Acumen Pharmaceuticals, Inc.
(Exact name of registrant as specified in its charter)
____________________________
Delaware001-4055136-4108129
(State or other jurisdiction
of incorporation)
(Commission
File Number)
(IRS Employer
Identification No.)
1210-1220 Washington Street, Suite 210
Newton, Massachusetts
02465
(Address of principal executive offices)(Zip Code)
Registrant’s telephone number, including area code: (617) 344-4190
(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instructions A.2. below):
oWritten communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
oSoliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
oPre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
oPre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Securities registered pursuant to Section 12(b) of the Act:
Title of each class
Trading
Symbol(s)
Name of each exchange on which registered
Common Stock, $0.0001 par valueABOSThe Nasdaq Global Select Market
Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).
Emerging growth company  x
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  o



Item 5.07    Submission of Matters to a Vote of Security Holders.
On June 3, 2026, Acumen Pharmaceuticals, Inc. (the “Company”) held its 2026 annual meeting of stockholders (the “Annual Meeting”). The stockholders considered three proposals at the Annual Meeting, each of which is described in more detail in the Company’s definitive proxy statement filed with the Securities and Exchange Commission on April 23, 2026. Of the 72,227,580 shares outstanding as of the record date, 57,051,456 shares, or approximately 78.99%, were present or represented by proxy at the Annual Meeting. Set forth below are the results of the matters submitted for a vote of stockholders at the Annual Meeting.
Proposal No. 1: The stockholders elected three nominees to serve as Class II directors until the 2029 annual meeting of stockholders and until their respective successors are elected and qualified. The votes were cast as follows:

NameVotes ForVotes WithheldBroker Non-Votes
George Golumbeski, Ph.D.37,305,71168,82019,676,925
Derrell Porter, M.D.30,926,4946,448,03719,676,925
Laura Stoppel, Ph.D.30,812,5596,561,97219,676,925
Proposal No. 2: The stockholders ratified the appointment of Ernst & Young LLP as independent registered public accounting firm for the fiscal year ending December 31, 2026. The votes were cast as follows:

Votes For
Votes Against
Abstained
Ratification of appointment of Ernst & Young LLP
56,934,900113,0743,482

Proposal No. 3: The stockholders approved the Company’s Amended and Restated 2021 Equity Incentive Plan. The votes were cast as follows:

Votes For
Votes Against
Abstained
Broker Non-Votes
Approval of the Company’s Amended and Restated 2021 Equity Incentive Plan30,731,7766,618,62124,13419,676,925



SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
Acumen Pharmaceuticals, Inc.
Dated: June 3, 2026By:/s/ Derek Meisner
Derek Meisner
Chief Legal Officer