X0609 4 2026-10-01 0 0000004904 AMERICAN ELECTRIC POWER CO INC AEP 0002022857 Berntsen Robert false 1 RIVERSIDE PLAZA COLUMBUS OH 43215 0 1 0 0 Executive Vice President 0 Resticted Stock Units 2026-10-01 4 F 0 1425 119.75 D 20405 D A portion of the reporting person's restricted stock units (4,813) granted on July 14, 2025, vested on October 1, 2026. Upon vesting 1,425 restricted stock units were withheld to satisfy the reporting person's tax liability. /s/ David C. House, Attorney-in-Fact for Robert B. Berntsen 2026-10-05