Business Description

NOTE 1. OVERVIEW Overview Allison Transmission Holdings, Inc. and its subsidiaries (“Allison” or the “Company”) is a global leader in high-performance mobility and work solutions built for the needs of the modern industrial world. The business was founded in 1915 and has been headquartered in Indianapolis, Indiana since inception. Allison trades on the New York Stock Exchange under the symbol, “ALSN”. The Company has a global presence by serving customers in North America, Asia, Europe, South America, and Africa, with approximately 76 % of its revenues being generated in North America in 2025. The Company serves customers through an independent network of approximately 1,500 inde pendent distributor and dealer locations worldwide as of December 31, 2025.