AEP director granted phantom stock units

Linginfelter Henry P reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

Linginfelter Henry P reported acquisition or exercise transactions in this Form 4 filing.

AMERICAN ELECTRIC POWER CO INC director Henry P. Linginfelter received a grant of phantom stock units tied to 324 shares of common stock. The award is recorded at an AEP stock price of $131.08 per share and increases his phantom stock unit balance to 3,684 units.

These stock units are paid in cash or shares when his board service ends, unless he has elected to defer payment so that it begins no later than five years after termination of service. This is a compensation-related grant, not an open-market stock purchase or sale.

Insider Trade Summary

Grant/Award: 0 shares

Grant/Award 1 txn

Insider Linginfelter Henry P

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Phantom Stock Units	0	$131.08	$0.00

Holdings After Transaction: Phantom Stock Units — 3,684 contracts (Direct)

Footnotes (2)

1. F1. 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.
2. F2. Was AEP Stock Price at the time of the transaction.

Key Figures

Underlying shares: 324 shares Reference stock price: $131.08 per share Phantom stock units after grant: 3,684 units +1 more

4 metrics

Underlying shares 324 shares Common stock underlying newly granted phantom stock units

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

Phantom stock units after grant 3,684 units Total phantom stock units held following the reported transaction

Conversion or exercise price $0.00 Conversion/exercise price for the phantom stock units reported

Key Terms

Phantom Stock Units, Stock Units, defer payment, Common Stock

4 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.

Stock Units financial

"Stock Units are paid to the director in cash or shares upon termination of service"

Stock units are individual pieces of ownership in a company, like slices of a pie that together make up the whole business. They matter to investors because each unit represents a claim on the company’s assets, profits and sometimes voting power, and changes in the number or value of these units affect ownership percentages, potential dividends and share dilution — all of which influence an investment’s worth.

defer payment financial

"unless the director has elected to defer payment for a period"

Common Stock financial

"underlying_security_title: "Common Stock""

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did Henry P. Linginfelter report in this AEP (AEP) Form 4 filing?

Henry P. Linginfelter reported receiving a grant of phantom stock units linked to 324 AEP common shares. The units are a form of deferred compensation, increasing his total phantom stock unit balance to 3,684, rather than reflecting an open-market stock purchase or sale.

How many AEP shares underlie the phantom stock units granted to Linginfelter?

The Form 4 shows phantom stock units underlying 324 AEP common shares. These units track the value of AEP stock but are settled in cash or shares at a future date, providing equity-linked compensation without an immediate share purchase transaction.

At what price were Henry P. Linginfelter’s AEP phantom stock units valued?

The phantom stock units are valued using an AEP stock price of $131.08 at the time of the transaction. This price serves as the reference value for the grant, helping determine the notional value of the award tied to AEP common stock performance.

What is Henry P. Linginfelter’s total phantom stock unit balance at AEP after this grant?

After the reported grant, Henry P. Linginfelter holds a total of 3,684 phantom stock units. These units represent deferred compensation linked to AEP’s share price, payable in cash or shares when his board service ends or after an elected deferral period.

When will Henry P. Linginfelter receive payment for his AEP phantom stock units?

Payment for the phantom stock units is made in cash or shares when Linginfelter’s service as a director ends, unless he elects to defer. Any deferral must result in payment beginning no later than five years after his termination of service on the board.

Does this AEP Form 4 show Henry P. Linginfelter buying or selling AEP stock on the market?

No, the filing reflects a grant of phantom stock units as compensation, not an open-market trade. The units track AEP’s stock price and are settled in cash or shares later, so the transaction does not represent a traditional stock purchase or sale.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 04/02/2026 - 02:30 PM EDT Learn about SEC filing dates

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^*

Linginfelter Henry P

(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	$0	03/31/2026		A		0		(1)	(1)	Common Stock	324	$131.08(2)	3,684	D

Explanation of Responses:

1. 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.

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

Remarks:

	/s/ David C. House, Attorney-in-Fact for Henry P. Linginfelter	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)