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September 30, 2025

Wood Dale, Illinois – AAR CORP. (“AAR” or the “Company”) (NYSE: AIR), a leading provider of aviation services to commercial and government operators, MROs, and OEMs, announced today the pricing of an underwritten registered public offering of 3,000,000 shares of its common stock at a public offering price of $83.00 per share.  The underwriters have a 30-day option to purchase up to an additional 450,000 shares from the Company at the public offering price.  The Company estimates that the net proceeds from the offering, after deducting the underwriting discounts and commissions, will be approximately $239.0 million, or $274.9 million if the underwriters exercise their option to purchase additional shares in full.  The shares are expected to be delivered on or about October 2, 2025, subject to customary closing conditions. 

September 30, 2025

Wood Dale, Illinois — AAR CORP. (“AAR” or the “Company”) (NYSE: AIR), a leading provider of aviation services to commercial and government operators, MROs, and OEMs, announced today that it has commenced an underwritten registered public offering of 3,000,000 shares of its common stock.  In addition, the Company intends to grant the underwriters a 30-day option to purchase up to an additional 450,000 shares of the Company’s common stock at the public offering price, less underwriting discounts and commissions.

September 25, 2025

Wood Dale, Illinois — AAR CORP. (NYSE: AIR), a leading provider of aviation services to commercial and government operators, MROs, and OEMs, announced today it has acquired American Distributors Holding Co., LLC (ADI), a leading distributor of components and assemblies, for $146 million in an all cash transaction funded using the Company’s existing revolving credit facility. The acquisition immediately expands AAR’s new parts Distribution with new additional product lines and extensive OEM relationships. The business will become part of AAR’s Parts Supply segment.