John M. Holmes

Money Moves

As of September 2026: Leading the acquisition and the broader reshaping of AAR

AAR Corp., an Illinois-based aviation parts and repair company, agreed on Sept. 28 to buy a 65% stake in MRO Holdings, a private-equity-backed aircraft maintenance firm, in a deal that values MRO Holdings at $4 billion. The combination creates what AAR says will be the world's largest heavy-maintenance provider, servicing nearly 3,000 aircraft a year across its hangars.

Updated Sep 28