TransDigm Announces CEO Succession with Mike Lisman's Appointment

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Mike Lisman, previously the Co-Chief Operating Officer, has been appointed as the new President and Chief Executive Officer, effective immediately. The transition was first announced on May 6, 2025, with Mr. Stein continuing as an advisor to the Company until March 31, 2026. The Company also executed a Second Amended and Restated Employment Agreement with Mr. Lisman. The press release detailing the transition is furnished as Exhibit 99.1.

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About TransDigm Group Inc.

TransDigm Group Inc. is a prominent company specializing in the design, production, and supply of aircraft components. The primary focus of TransDigm is to provide highly engineered aerospace parts and systems, offering critical features that enhance the safety, reliability, and performance of commercial and military aircraft. The company's extensive product portfolio includes mechanical and electromechanical actuators, specialized pumps and valves, ignition systems, and seating components, among others. TransDigm Group primarily serves the aerospace and defense sectors, operating globally to deliver essential parts to major airlines, maintenance facilities, and original equipment manufacturers (OEMs). By maintaining a dominant position in the market for proprietary and sole-source products, TransDigm plays a crucial role in the aerospace supply chain. Established in 1993 and headquartered in Cleveland, Ohio, TransDigm Group Inc. consistently shows its market significance by adhering to a business model that emphasizes value over volume. This focuses on providing critical solutions tailored to meet the stringent demands of flight operations, thus ensuring its influence and relevance in the overarching aerospace and defense industries.