Sean Gillen Biography and Net Worth

Senior Vice President and Chief Financial Officer of AAR

Sean Gillen is Senior Vice President and Chief Financial Officer at AAR (NYSE: AIR), a leading aviation services provider to commercial and government customers worldwide.

In January 2019, Gillen joined AAR in his current role where he oversees the financial, accounting, tax, treasury and investor relations functions for the Company.

Gillen most recently served as Vice President and Treasurer at USG Corporation where he was responsible for the leadership and direction of the treasury function, including capital strategy and structure, banking activities, hedging strategies, investor relations, financial shared services and rating agency relationships, as well as M&A activity.

Prior to USG, Gillen was employed at Goldman, Sachs & Company in the investment banking area. He has deep experience in developing the strategy and financing of mergers and acquisitions, divestitures and corporate spin-offs, as well as management of shareholder activism, capital return programs and debt financings.

Gillen holds a Bachelor of Business Administration from the University of Michigan.

What is Sean M. Gillen's net worth?: The estimated net worth of Sean M. Gillen is at least $11.17 million as of July 23rd, 2025. Mr. Gillen owns 99,868 shares of AAR stock worth more than $11,171,035 as of May 5th. This net worth evaluation does not reflect any other investments that Mr. Gillen may own. Learn More about Sean M. Gillen's net worth.
How do I contact Sean M. Gillen?: The corporate mailing address for Mr. Gillen and other AAR executives is ONE AAR PLACE 1100 N. WOOD DALE ROAD, WOOD DALE IL, 60191. AAR can also be reached via phone at (630) 227-2000 and via email at [email protected]. Learn More on Sean M. Gillen's contact information.
Has Sean M. Gillen been buying or selling shares of AAR?: Sean M. Gillen has not been actively trading shares of AAR in the last ninety days. Most recently, Sean M. Gillen sold 18,000 shares of the business's stock in a transaction on Wednesday, July 23rd. The shares were sold at an average price of $77.37, for a transaction totalling $1,392,660.00. Following the completion of the sale, the chief financial officer now directly owns 99,868 shares of the company's stock, valued at $7,726,787.16. Learn More on Sean M. Gillen's trading history.
Who are AAR's active insiders?: AAR's insider roster includes Anthony Anderson (Director), Michael Boyce (Director), Sarah Flanagan (CFO), Jessica Garascia (Senior Vice President, General Counsel, Chief Administrative Officer, and Secretary), Sean Gillen (Senior Vice President and Chief Financial Officer), John Holmes, III (CEO), Christopher Jessup (Senior Vice President, Chief Commercial Officer), Eric Pachapa (CAO), David Storch (Director), and Jennifer Vogel (Director). Learn More on AAR's active insiders.
Are insiders buying or selling shares of AAR?: During the last year, insiders at the aerospace company sold shares 17 times. They sold a total of 348,803 shares worth more than $32,621,149.18. The most recent insider tranaction occured on March, 27th when CEO John Mcclain Holmes III sold 26,175 shares worth more than $2,816,430.00. Insiders at AAR own 3.6% of the company. Learn More about insider trades at AAR.
Information on this page was last updated on 3/27/2026.

Sean M. Gillen Insider Trading History at AAR

Transaction Date	Buy/Sell	Number of Shares	Average Share Price	Total Transaction	Shares Held After Transaction
7/23/2025	Sell	18,000	$77.37	$1,392,660.00	99,868
1/10/2025	Sell	17,385	$66.33	$1,153,147.05	72,326
10/10/2023	Sell	15,000	$60.44	$906,600.00	52,939
3/23/2023	Sell	20,250	$54.05	$1,094,512.50	45,300
3/28/2022	Sell	20,230	$48.67	$984,594.10

Sean M. Gillen Buying and Selling Activity at AAR

AAR Company Overview

AAR Corp. provides products and services to commercial aviation, government, and defense markets worldwide. The Parts Supply segment leases and sells aircraft components and replacement parts. The Repair & Engineering segment provides airframe maintenance services, such as airframe inspection, painting, line maintenance, airframe modification, structural repair, avionics service and installation, exterior and interior refurbishment, and engineering and support services; component repair services comprising maintenance, repair, and overhaul (MRO) services, engine and airframe accessories, and interior refurbishment; and landing gear overhaul services, including repair services on wheels and brakes. This segment also develops specific aircraft components and parts; and designs proprietary designated engineering representative repairs. The Integrated Solutions segment engages in the fleet management and operation of customer-owned aircraft; provision of supply chain logistics services, such as material planning, sourcing, logistics, information and program management, and parts and component repair and overhaul services; and flight hour component inventory and repair services. In addition, the segment provides integrated software solutions comprising Trax, a cloud-based electronic enterprise resource platform, as well as a suite of paperless mobility apps for automating MRO workflows. The Expeditionary Services segment designs, manufactures, and repairs transportation pallets; and containers and shelters for military and humanitarian tactical deployment activities, including armories, supply and parts storage, refrigeration systems, tactical operation centers, briefing rooms, laundry and kitchen facilities, water treatment, and sleeping quarters, as well as engages in provision of engineering, design, and system integration services for specialized command and control systems. AAR Corp. was founded in 1951 and is headquartered in Wood Dale, Illinois.

Today's Range

Now: $111.86

$111.00

$113.41

50 Day Range

MA: $113.00

$101.36

$126.03

2 Week Range

Now: $111.86

$55.96

$127.21

Volume

246,476 shs

Average Volume

499,591 shs

Market Capitalization

$4.45 billion

P/E Ratio

24.80

Dividend Yield

N/A

Beta

1.15