American Electric Power (AEP)

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-06-30 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: AMERICAN ELECTRIC POWER CO INC (AEP) CIK: 0000004904 --- Reporting Owner --- Name: Roberts Daryl CIK: 0001836184 Role: Director --- Derivative Transactions --- [Transaction #1] Security: Phantom Stock Units Date: 2026-06-30 | Code: A (Grant or award) Shares: +0 | Price: $136.81 Shares Owned After: 761 | Ownership: D (Direct) Footnotes: [F3] Was AEP Stock Price at the time of the transaction. [F1] Shares of phantom stock are payable in cash or shares following termination of the reporting person's service on the Board. The reporting person may transfer the phantom stock in the AEP Stock Plan account into an alternative investment account at any time. [F1] Shares of phantom stock are payable in cash or shares following termination of the reporting person's service on the Board. The reporting person may transfer the phantom stock in the AEP Stock Plan account into an alternative investment account at any time. [F2] Amounts shown represent value in AEP Stock Plan under the AEP Stock Unit Accumulation Plan for Non-Employee Directors. Each share of phantom stock represents the right to receive the cash value of one share of AEP common stock. --- Footnotes (Complete Index) --- F1: Shares of phantom stock are payable in cash or shares following termination of the reporting person's service on the Board. The reporting person may transfer the phantom stock in the AEP Stock Plan account into an alternative investment account at any time. F2: Amounts shown represent value in AEP Stock Plan under the AEP Stock Unit Accumulation Plan for Non-Employee Directors. Each share of phantom stock represents the right to receive the cash value of one share of AEP common stock. F3: Was AEP Stock Price at the time of the transaction. --- Signature --- /s/ /s/ David C. House, Attorney-in-Fact for Daryl Roberts (2026-07-01)