Material Event (Form 8-K)

As previously disclosed, on May 1, 2026, Esperion Therapeutics, Inc., a Delaware corporation (the "Company"), entered into an Agreement and Plan of Merger (the "Merger Agreement") with Essence Parent Inc., a Delaware corporation and an affiliate of ArchiMed SAS ("Parent"), and Essence MergerCo Inc., a Delaware corporation and wholly owned subsidiary of Parent ("MergerCo"), pursuant to which, and on the terms and subject to the conditions thereof, MergerCo will merge with and into the Company (the "Merger"), with the Company surviving the Merger as a wholly-owned subsidiary of Parent.

The completion of the Merger is conditioned upon, among other things, the expiration or termination of the required waiting period applicable to the consummation of the Merger under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended (the "HSR Waiting Period"). The HSR Waiting Period expired at 11:59 p.m., Eastern Time, on June 15, 2026.

The completion of the Merger remains subject to the satisfaction of other customary closing conditions specified in the Merger Agreement, including the adoption of the Merger Agreement by the Company's stockholders. As previously disclosed, the special stockholder meeting to consider adoption of the Merger Agreement has been scheduled to be held virtually on July 8, 2026 at 8:00 a.m. Eastern Time.