American Electric Power (AEP) director granted 324 phantom stock units

Rhea-AI Filing Summary

McCarthy Margaret M reported acquisition or exercise transactions in this Form 4 filing.

American Electric Power director Margaret M. McCarthy received a grant of phantom stock units tied to AEP common stock value. The award covers 324 underlying shares of common stock at a reference price of $131.08 per share, increasing her phantom stock holdings to 3,325 units.

Each phantom stock unit represents the right to receive the cash value of one share of AEP common stock. These amounts are held in the AEP Stock Plan under the AEP Stock Unit Accumulation Plan for Non-Employee Directors and are payable in cash or shares after she leaves the Board, with flexibility to move balances into an alternative investment account.

Insights

Equity compensation analyst

Director receives routine phantom stock grant linked to AEP share value.

Director Margaret M. McCarthy acquired phantom stock units as a compensation grant, classified as a derivative transaction with code A for grant or award. The grant represents 324 underlying AEP common shares at a reference price of $131.08 per share.

Following this award, her total phantom stock balance stands at 3,325 units. These units track AEP’s share value but are payable in cash or shares only after her Board service ends, and she can shift them into an alternative investment account, underscoring their role as deferred, non-voting compensation rather than an open-market trade.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider McCarthy Margaret M

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Phantom Stock Units	0	$131.08	--

Holdings After Transaction: Phantom Stock Units — 3,325 shares (Direct)

Footnotes (1)

1. 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. 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. Was AEP Stock Price at the time of the transaction.

Key Figures

Underlying shares in grant: 324 shares Reference stock price: $131.08 per share Total phantom units after grant: 3,325 units

3 metrics

Underlying shares in grant 324 shares Underlying AEP common stock for new phantom stock award

Reference stock price $131.08 per share AEP stock price at time of phantom stock transaction

Total phantom units after grant 3,325 units Director’s phantom stock balance following the award

Key Terms

Phantom Stock Units, AEP Stock Unit Accumulation Plan for Non-Employee Directors, alternative investment account

3 terms

Phantom Stock Units financial

"security_title: "Phantom Stock Units""

Phantom stock units are company promises that pay a cash or stock-equivalent award tied to the firm’s share price or value growth, but they do not issue actual shares. Think of them as a bonus check that moves with the stock like a mirror rather than handing over an ownership slice. Investors care because these awards can affect a company’s future cash obligations, executive incentives and reported expenses without causing share dilution.

AEP Stock Unit Accumulation Plan for Non-Employee Directors financial

"value in AEP Stock Plan under the AEP Stock Unit Accumulation Plan for Non-Employee Directors"

alternative investment account financial

"may transfer the phantom stock in the AEP Stock Plan account into an alternative investment account at any time"

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

McCarthy Margaret M

(Last) (First) (Middle)

1 RIVERSIDE PLAZA

(Street)

COLUMBUS OHIO 43215

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
AMERICAN ELECTRIC POWER CO INC [ AEP ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/31/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Phantom Stock Units(1)	$0	03/31/2026		A		0(1)		(2)	(2)	Common Stock	324(1)	$131.08(3)	3,325	D

Explanation of Responses:

1. 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.

2. 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.

3. Was AEP Stock Price at the time of the transaction.

Remarks:

	/s/ David C. House, Attorney-in-Fact for Margaret M McCarthy	04/02/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What did AEP director Margaret McCarthy acquire in this Form 4 filing for AEP?

Director Margaret M. McCarthy received a grant of phantom stock units under an AEP stock plan. The award represents 324 underlying shares of AEP common stock, increasing her total phantom stock holdings to 3,325 units as part of deferred director compensation.

How many AEP phantom stock units does Margaret McCarthy hold after this transaction?

After this grant, Margaret McCarthy holds 3,325 phantom stock units tied to AEP common stock. These units reflect compensation accumulated under the AEP Stock Unit Accumulation Plan for Non-Employee Directors, with value based on AEP’s share price at relevant times.

What does each AEP phantom stock unit represent in Margaret McCarthy’s Form 4?

Each phantom stock unit represents the right to receive the cash value of one share of AEP common stock. The units are maintained in the AEP Stock Plan and mirror AEP’s share value rather than providing direct ownership or current voting rights in the common stock.

When are AEP phantom stock units payable to Margaret McCarthy?

The phantom stock units are payable in cash or shares after Margaret McCarthy’s service on AEP’s Board ends. Until then, the balance remains in the AEP Stock Plan, although she may transfer it into an alternative investment account at any time under plan rules.

What price per share is referenced in Margaret McCarthy’s AEP phantom stock grant?

The grant references a price of $131.08 per share, noted as the AEP stock price at the time of the transaction. This price is used in valuing the phantom stock units that correspond to 324 underlying shares of AEP common stock in the award.

Is Margaret McCarthy’s AEP phantom stock grant an open-market purchase or sale?

No, this is not an open-market trade. The Form 4 classifies it with code A as a grant or award of phantom stock units, serving as deferred director compensation linked to AEP’s share value rather than a market purchase or sale of common stock.