X0609 4 2026-03-26 0000001750 AAR CORP AIR 0001997366 Nolen Billy false 1100 N. WOOD DALE RD. WOOD DALE IL 60191 1 0 Common Stock 2026-03-26 4 S 0 1562 111.0019 D 0 D The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $111.0000 to $111.0100, inclusive. The reporting person undertakes to provide AAR CORP., any security holder of AAR CORP., or the staff of the Securities and Exchange Commission upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. /s/ Katherine Kwiat, power of attorney 2026-03-27