Tempest Therapeutics names Stephanie Horn-Warnock as CFO after Constance Ames resigns

Tempest Therapeutics, Inc. disclosed in an 8-K filing that on October 26, 2026, Constance Ames told the company she would step down as Chief Financial Officer and from any other roles she held there, citing personal reasons unconnected to the company, effective immediately.¹

The same day, Tempest's board appointed Stephanie Horn-Warnock to take over as Chief Financial Officer, taking on the roles of Principal Financial and Accounting Officer, Treasurer, and Corporate Secretary, effective immediately.¹

According to the filing, Horn-Warnock is a financial executive with over 14 years of experience spanning accounting, financial reporting, auditing and financial management across healthcare, pharmaceutical, medical technology, behavioral health and renewable energy sectors.¹ Her recent background includes work through Stout Risius Ross, LLC starting in March 2026, where she took on roles such as Controller at Diasome Pharmaceuticals, Inc., Assistant Controller at Aspargo Labs, Inc., and served as a financial reporting consultant for Lomond Therapeutics Holdings, Inc., following a stint as Vice President of Finance at ROM Technologies Inc. from January 2024 to September 2026, where she managed accounting and finance operations including planning, treasury, reporting and compliance.¹ She also handled the company's annual audits, internal controls and equity reporting.¹ Earlier roles included Senior Manager of Accounting and Assistant Controller at Palmetto Solar, LLC from 2022 to 2024, Accounting Manager at Dascena, Inc. from 2021 to 2022, and various controller positions at Sequel Youth and Family Services, LLC from 2018 to 2021.¹ She began her career at BDO USA, P.C., rising to Assurance Manager and leading audits of public and private companies.¹

The filing states she holds a B.B.A. in Accounting from Emory University's Goizueta Business School¹ and is a Certified Public Accountant, belonging to both the American Institute of CPAs and the Tennessee Society of CPAs.¹

Per the filing, Horn-Warnock will serve the company as a consultant under an engagement letter dated October 28, 2026, billing at $450 per hour plus expenses and a 5.0% indirect cost allocation on total professional fees.¹ The company noted there are no family ties between Horn-Warnock and any Tempest director or executive officer, and no arrangements tied to her appointment as the company's principal financial officer.¹