Exhibit 99.1 Union Pacific Reports Third Quarter 2025 Results Omaha, Neb., October 23, 2025 – Union Pacific Corporation (NYSE: UNP) today reported 2025 third quarter net income of $1.8 billion, or$3.01 per diluted share. Results include merger costs of $41 million, or$0.07 per diluted share. Adjusted 2025 third quarter net income* of $1.8 billion, or$3.08 per diluted share* compares to 2024 third quarter net income of $1.7 billion, or$2.75 per diluted share. "Our third quarter results serve as a proof p ...