Harvard Bioscience, Inc.

Item 2.02 Results of Operations and Financial Condition. On February 10, 2026, Harvard Bioscience, Inc. (the “Company”) issued a press release which contained, among other things, certain preliminary financial results, including unaudited revenue for the fourth quarter ended December 31, 2025. A copy of such press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference. These preliminary estimates are not a comprehensive statement of the Company’s financial results for the fourth quarter ended December 31, 2025 and have not been audited, reviewed, or compiled by its independent registered public accounting firm. The Company’s actual results may differ from these estimates upon the completion of the Company’s year-end closing and auditing procedures. The information in Item 2.02 of this Current Report on Form 8-K and Exhibit 99.1 attached hereto is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934 (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 of 1933 or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.