1 Member of Audit Committee 2 Member of Compensation Committee 3 Member of Executive Committee 4 Member of Nominating and Governance Committee 5 Member Aviation Training and Safety Committee 6 Lead Director Stockholder information Corporate headquarters A A R C O R P. 1100 N. Wood Dale Rd. Wood Dale, IL 60191 T: +1 630.227.2000 F: +1 630.227.2058 www.aarcorp.com Transfer agent and registrar Computershare Trust Company, N.A. Providence, Rhode Island Independent registered public accounting firm KPMG LLP Chicago, Illinois Annual meeting of stockholders The annual meeting of stockholders will be held at 9 a.m. (Chicago time) on Tuesday, September 28, 2021. Investor service program AAR CORP. provides its stockholders the opportunity to purchase additional shares of common stock of the Company by automatic reinvestment of dividends and optional additional investments. Stockholders may obtain information regarding this plan by contacting the Corporate Secretary, AAR CORP., 1100 N. Wood Dale Rd., Wood Dale, IL 60191. Ticker symbol AAR stock is traded on the New York and Chicago Stock Exchanges under the ticker symbol AIR. Forward-looking statements This Annual Report contains forward looking statements within the meaning of the Private Securities Litigation Reform Act of 1995 related to management’s expectations about future conditions. Actual business, market or other conditions may differ materially from management’s expectations and, accordingly, may affect our sales and profitability or other results and liquidity. Any forward-looking statements represent our views only as of today and should not be relied upon as representing our views as of any subsequent date and we undertake no obligation to update any forward-looking statement. Actual results may differ materially due to various other factors, including those found in the “Risk Factors” section in our most recent Annual Report on Form 10-K filed with the Securities and Exchange Commission. AAR leadership AAR awards reflect our strength Corporate Officers John M. Holmes President and Chief Executive Officer John B. Cooper Vice President, Global Government and Defense; Lt. General, U.S. Air Force (Ret.) Sarah L. Flanagan Vice President, Financial Operations Jessica A. Garascia Vice President, General Counsel, Chief Compliance Officer and Secretary Sean M. Gillen Vice President and Chief Financial Officer Nicholas P. Gross Vice President, Integrated Solutions Christopher A. Jessup Vice President, Chief Commercial Officer Salvatore J. Marino Vice President, Parts Supply Group Eric S. Pachapa Vice President, Controller and Chief Accounting Officer Brian E. Sartain Vice President, Repair and Engineering Dylan Z. Wolin Vice President, Strategic & Corporate Development and Treasurer Eric J. Young Vice President, OEM Solutions Board of Directors David P. Storch 3 - Chairman Chairman of the Board, AAR CORP. Anthony K. Anderson 2, 4 Former Vice Chairman and Managing Partner of Midwest Area at Ernst & Young LLP Michael R. Boyce 2, 4 Chairman and Managing Director, Peak Investments, LLC H. John Gilbertson, Jr. 1, 2 – Chairman Former Managing Director, Goldman Sachs James E. Goodwin 1, 3, 4 – Chairman, 6 Former Chairman and Chief Executive Officer, UAL, Inc. and United Airlines, Inc. John M. Holmes 3 President and Chief Executive Officer, A A R C O R P. Robert F. Leduc 1, 2, 5 Former President, Pratt & Whitney Ellen M. Lord Former Under Secretary of Defense for Acquisition and Sustainment; Former President & CEO of Textron Systems Duncan J. McNabb 1, 4, 5 – Chairman General, U.S. Air Force (Ret.); Co-Founder and Managing Partner of Ares Mobility Solutions, Inc. Peter Pace 1, 2 General, U.S. Marine Corps (Ret.); Former Chairman of the Joint Chiefs of Staff Jennifer L. Vogel 2, 3, 4, 5 Former Senior Vice President, General Counsel, Secretary and Chief Compliance Officer, Continental Airlines Marc J. Walfish 1 – Chairman, 3, 4 Founding Partner, Merit Capital Partners CREATIVE: O’Connor Design PHOTOGRAPHY : Herzog Photography (page 10 top right photo: Cynic) 12 | AAR 2021 ANNUAL REPORT