X0609 4 2026-07-23 0000001750 AAR CORP AIR 0001554880 Holmes John McClain III false 1100 N. WOOD DALE ROAD WOOD DALE IL 60191 1 1 Chairman, President & CEO 0 Common Stock 2026-07-23 4 A 0 20082 0 A 290102 D Common Stock 2026-07-23 4 A 0 30123 0 A 320225 D Common Stock 2026-07-23 4 A 0 161500 0 A 481725 D Award of stock pursuant to a Restricted Stock Agreement in a transaction exempt under Rule 16b-3. Award of stock pursuant to a Performance Restricted Stock Agreement in a transaction exempt under Rule 16b-3. Award of stock pursuant to a Performance Restricted Stock Agreement in a transaction exempt under Rule 16b-3. The performance-based stock cliff vests on July 31, 2031 (the "Vesting Date"), subject to Mr. Holmes' continued service through such date (other than in certain limited circumstances), and may only be earned based on, and to the extent of, the achievement of stock price vesting conditions that will be met when the 30-day volume weighted average trading price of a share of the Company's common stock meets or exceeds one or more of the following stock price hurdle thresholds on or prior to July 31, 2031: (1) $175 stock price - one-third shares will vest on the Vesting Date; (2) $200 stock price - an additional one-third shares will vest on the Vesting Date; and (3) $275 stock price - an additional one-third shares will vest on the Vesting Date. The number of shares reported herein assumes the target stock price metrics are met. /s/ Katherine Kwiat, power of attorney 2026-07-24