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AAR Names Sarah Flanagan Interim CFO

AAR Appoints Sarah Flanagan as Interim Chief Financial Officer
AAR CORP. has named Sarah Flanagan as its interim Chief Financial Officer, effective December 11, 2025. Flanagan, who currently serves as Vice President of Financial Operations, will succeed Sean Gillen, who is departing to pursue opportunities outside the aviation sector.
Experienced Leadership Amid Transition
Flanagan joined AAR in 2012 and has advanced through a series of senior roles within the company’s finance organization, including serving as group CFO for its largest business segment. Her leadership has been instrumental in supporting AAR’s sustained growth, and she was appointed an officer of the company in 2017. Before joining AAR, Flanagan held various financial planning, analysis, and controller positions at Honeywell International, Inc., and began her career as an auditor with PwC.
John M. Holmes, AAR’s Chairman, President, and CEO, acknowledged Gillen’s significant contributions during his seven-year tenure as CFO. Holmes highlighted Gillen’s role in executing the company’s strategy to reposition and strengthen its portfolio by focusing on higher-growth, higher-margin businesses. He extended best wishes to Gillen in his future endeavors.
Holmes also expressed confidence in Flanagan’s capabilities, emphasizing her extensive industry knowledge and broad experience across global operations. Having worked closely with her over the past 13 years, he affirmed that she would provide strong leadership for the finance organization during this interim period.
Strategic Implications and Industry Context
Flanagan’s appointment arrives amid heightened scrutiny from investors and competitors alike. Market participants are expected to focus on her ability to maintain financial stability and sustain AAR’s growth trajectory. Industry analysts suggest that competitors may closely observe AAR’s financial performance and strategic direction during this leadership transition, potentially adjusting their own strategies in response.
This leadership change also reflects broader trends within the aviation and transportation sectors, as companies contend with fluctuating U.S. rail volumes and other industry-specific challenges. As Flanagan assumes her new responsibilities, AAR’s performance during this interim phase will be closely monitored by stakeholders across the industry.

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