Allison(ALSN) - 2025 Q4 - Annual Results

Exhibit 99.1 News Release Allison Transmission Announces Fourth Quarter and Full Year 2025 Results INDIANAPOLIS, February 23, 2026 – Allison Transmission Holdings Inc. (NYSE: ALSN) today reported full year 2025 net sales of $3 billion with Adjusted EBITDA margin of 37.5 percent and net cash provided by operating activities of $836 million. David S. Graziosi, Chair, President and Chief Executive Officer of Allison commented, "Although 2025 presented meaningful macroeconomic challenges, we remained discipline ...