Sean M. Gillen - Jul 23, 2025 Form 4 Insider Report for AAR CORP (AIR)

Role: Senior VP-CFO
Signature: /s/ Katherine Kwiat, power of attorney
Stock symbol: AIR
Transactions as of: Jul 23, 2025
Transactions value $: -$806,192
Form type: 4
Date filed: 7/25/2025, 02:46 PM
Previous filing: Jul 17, 2025
Next filing: Aug 1, 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Gillen Sean M.	Senior VP-CFO	1100 N. WOOD DALE ROAD, WOOD DALE	/s/ Katherine Kwiat, power of attorney	2025-07-25	0001764537

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	AIR	Common Stock	Award	$0	+3.82K	+4.51%	$0.00	88.4K	Jul 23, 2025	Direct	F1
transaction	AIR	Common Stock	Award	$0	+11.4K	+12.94%	$0.00	99.9K	Jul 23, 2025	Direct	F2
transaction	AIR	Common Stock	Options Exercise	$152K	+8K	+8.01%	$18.94	108K	Jul 23, 2025	Direct
transaction	AIR	Common Stock	Sale	-$619K	-8K	-7.42%	$77.37	99.9K	Jul 23, 2025	Direct	F3
transaction	AIR	Common Stock	Options Exercise	$151K	+4K	+4.01%	$37.74	104K	Jul 23, 2025	Direct
transaction	AIR	Common Stock	Sale	-$309K	-4K	-3.85%	$77.37	99.9K	Jul 23, 2025	Direct	F3
transaction	AIR	Common Stock	Options Exercise	$168K	+4K	+4.01%	$41.88	104K	Jul 23, 2025	Direct
transaction	AIR	Common Stock	Sale	-$309K	-4K	-3.85%	$77.37	99.9K	Jul 23, 2025	Direct	F3
transaction	AIR	Common Stock	Options Exercise	$117K	+2K	+2%	$58.27	102K	Jul 23, 2025	Direct
transaction	AIR	Common Stock	Sale	-$155K	-2K	-1.96%	$77.37	99.9K	Jul 23, 2025	Direct	F3

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	AIR	Stock Option	Award	$0	+10.6K		$0.00	10.6K	Jul 23, 2025	Common Stock	10.6K	$79.45	Direct	F4
transaction	AIR	Stock Option	Options Exercise	$0	-8K	-16.71%	$0.00	39.9K	Jul 23, 2025	Common Stock	8K	$18.94	Direct	F5
transaction	AIR	Stock Option	Options Exercise	$0	-4K	-50.19%	$0.00	3.97K	Jul 23, 2025	Common Stock	4K	$37.74	Direct	F6
transaction	AIR	Stock Option	Options Exercise	$0	-4K	-33.15%	$0.00	8.07K	Jul 23, 2025	Common Stock	4K	$41.88	Direct	F7
transaction	AIR	Stock Option	Options Exercise	$0	-2K	-29.78%	$0.00	4.72K	Jul 23, 2025	Common Stock	2K	$58.27	Direct	F8

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Award of stock pursuant to a Restricted Stock Agreement in a transaction exempt under Rule 16b-3.
F2	Award of stock pursuant to a Performance Restricted Stock Agreement in a transaction exempt under Rule 16b-3.
F3	The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $76.43 to $79.16 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.
F4	The awarded stock option vests and becomes exercisable in 1/3 annual installments beginning on July 31, 2026 and shall vest as follows: 33 and 1/3% on each of July 31, 2026, July 31, 2027 and July 31, 2028.
F5	The awarded stock option vested and became exercisable in 1/3 annual installments beginning on July 31, 2021 and vested as follows: 33 and 1/3% on each of July 31, 2021, July 31, 2022 and July 31, 2023.
F6	The awarded stock option vested and became exercisable in 1/3 annual installments beginning on July 31, 2022 and vested as follows: 33 and 1/3% on each of July 31, 2022, July 31, 2023 and July 31, 2024.
F7	The awarded stock option vests and becomes exercisable in 1/3 annual installments beginning on July 31, 2023 and shall vest as follows: 33 and 1/3% on each of July 31, 2023, July 31, 2024 and July 31, 2025.
F8	The awarded stock option vests and becomes exercisable in 1/3 annual installments beginning on July 31, 2024 and shall vest as follows: 33 and 1/3% on each of July 31, 2024, July 31, 2025, and July 31, 2026.