IDEX Corporation has appointed Sean M. Gillen as Senior Vice President and Chief Financial Officer, effective January 5, 2026. He succeeds Akhil Mahendra, who will return to his role as Vice President of Corporate Development after serving as interim CFO since May 2025. Gillen brings broad experience in financial performance, portfolio management, operational efficiency, and strategic growth across global industrial and manufacturing companies.
He joins IDEX after nearly seven years as CFO of AAR CORP., where he helped shape the company’s strategy in portfolio management, capital deployment, and M&A. He previously served as vice president and treasurer at USG Corporation and earlier worked in Goldman Sachs’ Global Industrial Investment Banking Division.
IDEX Chief Executive Officer and President, Eric Ashleman, noted, “He has a demonstrated track record of driving profitable growth, operational execution, and disciplined capital allocation. He also brings a decade of M&A advisory experience within the industrial sector. We look forward to benefiting from his leadership as we continue shaping and executing our enterprise strategy.”
Gillen stated, “The Company’s differentiated strategy, guided by its 8020 approach, positions it well to continue building on its growth markets while improving margins. I look forward to partnering with Eric and the rest of the leadership team to accelerate IDEX’s progress and build on IDEX’s strong momentum.”
