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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
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FORM 8-K
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CURRENT REPORT
Pursuant to Section 13 or 15(d)
of the Securities Exchange Act of 1934
Date of Report (Date of earliest event reported): January 12, 2026
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Acumen Pharmaceuticals, Inc.
(Exact name of Registrant as Specified in Its Charter)
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| Delaware | 001-40551 | 36-4108129 |
(State or Other Jurisdiction of Incorporation) | (Commission File Number) | (IRS Employer Identification No.) |
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1210-1220 Washington Street, Suite 210 Newton, Massachusetts | 02465 |
| (Address of Principal Executive Offices) | (Zip Code) |
(617) 344-4190
(Registrant’s Telephone Number, Including Area Code)
Not Applicable
(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):
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| o | Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) |
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| o | Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) |
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| o | Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) |
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| o | Pre-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:
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| Title of each class | | Trading Symbol(s) | | Name of each exchange on which registered |
| Common Stock, $0.0001 par value | | ABOS | | The 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 7.01 Regulation FD Disclosure.
On January 12, 2026, Acumen Pharmaceuticals, Inc. (the “Company”) posted an updated corporate presentation to its website at https://investors.acumenpharm.com/news-events/presentations, which the Company may use from time to time in communications or conferences. The corporate presentation was updated to reflect the inclusion of nonclinical murine brain exposure data supporting our Enhanced Brain Delivery (EBD™) program that was presented at Clinical Trials on Alzheimer’s Disease (“CTAD”) conference 2025, updated views of previously presented fluid biomarker data associated with our Phase 1 INTERCEPT-AD study, and the inclusion of ACU234 in the pipeline related to our EBD program. A copy of the corporate presentation is attached as Exhibit 99.1 to this Report.
The information in this Item 7.01 of this Report (including Exhibit 99.1), is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Exchange Act, or otherwise subject to the liabilities of that Section, nor shall it be deemed incorporated by reference in any filing under the Securities Act or the Exchange Act, except as expressly set forth by specific reference in such filing. The Company’s submission of this Report shall not be deemed an admission as to the materiality of any information required to be disclosed solely to satisfy the requirements of Regulation FD.
Item 9.01 Financial Statements and Exhibits.
(d).Exhibits
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| Exhibit No. | | Description |
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| 99.1 | | Corporate Presentation, dated January 12, 2026 |
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| 104 | | Cover Page Interactive Data File (embedded within the Inline XBRL document) |
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SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the Company has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
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| Acumen Pharmaceuticals, Inc. |
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| Dated: January 12, 2026 | By: | /s/ Derek Meisner |
| | Derek Meisner Chief Legal Officer |
