Harvard Apparatus Regenerative Technology, Inc.

This Report includes the certifications of our principal executive officer and our principal financial and accounting officer required by Rule 13a-14 of the Exchange Act. See Exhibits 31.1 and 31.2.

Evaluation of Disclosure Controls and Procedures

Disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act) are designed to ensure that information required to be disclosed in reports filed or submitted under the Exchange Act is recorded, processed, summarized, and reported within the time periods specified in SEC rules and forms and that such information is accumulated and communicated to management, including the Chief Executive Officer and Chairman, who is our principal executive officer, and our Chief Financial Officer, who is our principal financial and accounting officer, to allow timely decisions regarding required disclosures.

In connection with the preparation of this Quarterly Report on Form 10-Q, our management, under the supervision and with the participation of our principal executive officer and our principal financial and accounting officer, conducted an evaluation of the effectiveness of the design and operation of our disclosure controls and procedures as of March 31, 2026. Based upon the evaluation described above, our principal executive officer and our principal financial and accounting officer have concluded that they believe our disclosure controls and procedures were effective as of the end of the period covered by this report, in providing reasonable assurance that information required to be disclosed by us in the reports that we file or submit under the Exchange Act is accumulated and communicated to our management, including our principal executive officer and our principal financial and accounting officer, to allow timely decisions regarding required disclosures, and is recorded, processed, summarized and reported within the time periods specified in the Securities and Exchange Commission’s rules and forms.

Changes in Internal Control over Financial Reporting

Our management, with the participation of our principal executive officer and our principal financial and accounting officer, has evaluated whether any change in our internal control over financial accounting and reporting occurred during the quarter ended March 31, 2026. During the period covered by this report, we have concluded that there were no changes during the fiscal quarter in our internal control over financial reporting, as defined in Rule 13a-15(f) and 15d-15(f) under the Exchange Act, which have materially affected, or are reasonably likely to materially affect, our internal control over financial accounting and reporting.