• East Hartford Operations is a leading supplier of flight-safety critical components and assemblies for the commercial and defense aerospace sectors
• Mesirow acted as the exclusive financial advisor on this corporate divestiture transaction, highlighting the firm’s continued success in the aerospace & defense sector

CHICAGO, August 11, 2025 – Mesirow, an independent, employee-owned financial services firm, today announced it acted as the exclusive financial advisor to ATI (NYSE:ATI) on the sale of its East Hartford Operations (“EHO”) to Barnes Aerospace.

ATI is a global producer of high performance materials and solutions for the aerospace and defense markets, and critical applications in electronics, medical and specialty energy. Located in East Hartford, CT, EHO specializes in the machining of flight-safety critical rotating hardware, including rotor hubs, rotorcraft components, and jet engine discs, serving both the commercial and defense aerospace sectors.

“It was an honor to represent ATI on this transaction, and we are thrilled to have reached a successful outcome. The Company has built a stellar reputation in the market by providing quality products and best-in-class customer service for over 75 years,” said Adam Oakley, Senior Managing Director and Co-Head of Investment Banking at Mesirow.

The transaction marks another successful aerospace & defense corporate carve-out transaction completed by Mesirow Investment Banking. In recent years, the firm has completed more than 350 transactions across its verticals. With deep industry expertise, long-standing client relationships, and a commitment to delivering tailored solutions, Mesirow continues to build a proven track record of highly successful transactions.