UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of the
Securities Exchange Act of 1934 (Amendment No. )

☑

Filed by the Registrant

☐

Filed by a party other than the Registrant

CHECK THE APPROPRIATE BOX:
☐		Preliminary Proxy Statement
☐		Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))
☐		Definitive Proxy Statement
☑		Definitive Additional Materials
☐		Soliciting Material under §240.14a-12

AAR CORP.

(Name of Registrant as Specified In Its Charter)
(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

PAYMENT OF FILING FEE (CHECK ALL BOXES THAT APPLY):
☑		No fee required
☐		Fee paid previously with preliminary materials
☐		Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11



AAR CORP. 1100 NORTH WOOD DALE ROAD WOOD DALE, IL 60191		Your Vote Counts! AAR CORP. 2023 Annual Meeting For shares held directly, vote by September 18, 2023, 11:59 P.M. ET. For shares held in a Plan, vote by September 14, 2023, 11:59 P.M. ET.


V21587-P97044

You invested in AAR CORP. and it’s time to vote!
You have the right to vote on proposals being presented at the Annual Meeting. This is an important notice regarding the availability of proxy material for the stockholder meeting to be held on September 19, 2023.

Get informed before you vote
View the Notice & Proxy Statement, Annual Report on Form 10-K and Annual Report to Stockholders online OR you can receive a free paper or email copy of the material(s) by requesting prior to September 5, 2023. If you would like to request a copy of the material(s) for this and/or future stockholder meetings, you may (1) visit www.ProxyVote.com, (2) call 1-800-579-1639 or (3) send an email to sendmaterial@proxyvote.com. If sending an email, please include your control number (indicated below) in the subject line. Unless requested, you will not otherwise receive a paper or email copy.

	For complete information and to vote, visit www.ProxyVote.com
	Control #

*Please check the meeting materials for any special requirements for meeting attendance.

Vote at www.ProxyVote.com

THIS IS NOT A VOTABLE BALLOT

This is an overview of the proposals being presented at the
upcoming stockholder meeting. Please follow the instructions on
the reverse side to vote these important matters.

Voting Items		Board Recommends
1.	Election of four directors named in the proxy statement
	Nominees:
1a.	John W. Dietrich		For
1b.	Robert F. Leduc		For
1c.	Duncan J. McNabb		For
1d.	Peter Pace		For
2.	Advisory proposal to approve our Fiscal 2023 executive compensation		For
3.	Advisory proposal to approve the frequency for future advisory proposals to approve our executive compensation		Year
4.	Approve an amendment to our stock plan		For
5.	Ratify the appointment of KPMG LLP as our independent registered public accounting firm for Fiscal 2024		For
NOTE: As to any other business as may properly come before the meeting or any adjournment or postponement thereof, the Proxy will be voted in the discretion of the proxies.

Prefer to receive an email instead? While voting on www.ProxyVote.com, be sure to click “Delivery Settings”.

V21588-P97044

Smartphone users

Point your camera here and
vote without entering a
control number

Vote Virtually at the Meeting*
September 19, 2023
9:00 A.M. Central Time

Virtually at:
www.virtualshareholdermeeting.com/AIR2023