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: FOWKE BENJAMIN G S III CIK: 0001206908 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: 7,070 | Ownership: D (Direct) Footnotes: [F3] Was AEP Stock Price at the time of the transaction. [F2] Stock Units are paid to the director in cash or shares upon termination of service unless the director has elected to defer payment for a period that results in payment commencing not later than five years thereafter. [F2] Stock Units are paid to the director in cash or shares upon termination of service unless the director has elected to defer payment for a period that results in payment commencing not later than five years thereafter. --- Holdings --- [Holding #1] Security: Common Stock Ownership: D (Direct) Footnotes: [F1] The reporting director previously deferred the receipt of his quarterly cash retainer into the AEP Stock Fund under the AEP Stock Unit Accumulation Plan for Non-Employee Directors. The reporting director may transfer amounts in the AEP Stock Fund into an alternative investment at any time. [Holding #2] Security: Common Stock Ownership: D (Direct) --- Footnotes (Complete Index) --- F1: The reporting director previously deferred the receipt of his quarterly cash retainer into the AEP Stock Fund under the AEP Stock Unit Accumulation Plan for Non-Employee Directors. The reporting director may transfer amounts in the AEP Stock Fund into an alternative investment at any time. F2: Stock Units are paid to the director in cash or shares upon termination of service unless the director has elected to defer payment for a period that results in payment commencing not later than five years thereafter. F3: Was AEP Stock Price at the time of the transaction. --- Signature --- /s/ /s/ David C. House, Attorney-in-Fact for Benjamin G.S. Fowke III (2026-07-01)