Ampco-Pittsburgh director granted 7,374 restricted shares

LIEBERMAN WILLIAM K reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

LIEBERMAN WILLIAM K reported acquisition or exercise transactions in this Form 4 filing.

Ampco-Pittsburgh Corporation director William K. Lieberman reported an equity award. He received a grant of 7,374 shares of Common Stock as restricted stock at $0.0000 per share under the Ampco-Pittsburgh Corporation 2016 Omnibus Incentive Plan, as amended and restated on May 8, 2025.

The restricted stock vests on the first anniversary of the grant date. After this grant, his reported direct holdings of Common Stock total 58,286 shares, with a portion noted as held jointly with his spouse.

Insider Trade Summary

Grant/Award: 7,374 shares

Grant/Award 2 txns

Insider LIEBERMAN WILLIAM K

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	7,374	$0.00	$0.00
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 83,286 shares (Direct)

Footnotes (2)

1. F1. Represents a grant of restricted stock under the Ampco-Pittsburgh Corporation 2016 Omnibus Incentive Plan, as amended and restated May 8, 2025. These grants of restricted stock vest on the first anniversary of the grant date.
2. F2. Joint with spouse

Key Figures

Restricted stock grant: 7,374 shares Grant price: $0.0000 per share Holdings after award: 58,286 shares +2 more

5 metrics

Restricted stock grant 7,374 shares Common Stock awarded as restricted stock to director

Grant price $0.0000 per share Stated price for restricted stock award

Holdings after award 58,286 shares Total direct Common Stock holdings following grant

Transaction code A Grant, award, or other acquisition of Common Stock

Vesting schedule 1-year cliff vesting Restricted stock vests on first anniversary of grant date

Key Terms

restricted stock, 2016 Omnibus Incentive Plan, grant date, vest, +1 more

5 terms

restricted stock financial

"Represents a grant of restricted stock under the Ampco-Pittsburgh Corporation 2016 Omnibus Incentive Plan"

Shares granted to an individual that carry limits on transfer or sale until certain conditions are met, such as staying with the company for a set time or hitting performance targets. Think of them as a locked gift that gradually opens; for investors they matter because they affect how many shares may enter the market later, signal management incentives and potential dilution, and reveal confidence in future company performance.

2016 Omnibus Incentive Plan financial

"under the Ampco-Pittsburgh Corporation 2016 Omnibus Incentive Plan, as amended and restated May 8, 2025"

grant date financial

"These grants of restricted stock vest on the first anniversary of the grant date"

The grant date is the day a company formally gives an employee or contractor the right to receive stock-based compensation, such as stock options or restricted shares. It matters to investors because it fixes key terms—like the price, the start of the ownership clock, and when the award will affect the company’s financial statements and share count—so it can influence dilution, reported expenses, and potential future selling pressure.

vest financial

"These grants of restricted stock vest on the first anniversary of the grant date"

A vest is the process by which an employee earns the right to receive certain benefits or ownership interests, such as stock or retirement funds, over time. It’s similar to earning a reward gradually, ensuring that the benefit becomes fully yours only after a set period or meeting specific conditions. This makes it important for investors because it determines when they can actually claim or use those benefits.

Joint with spouse financial

"Joint with spouse"

FAQ

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

What did AP director William K. Lieberman report on this Form 4?

William K. Lieberman reported receiving a grant of 7,374 shares of Ampco-Pittsburgh Common Stock as restricted stock. The award was made under the company’s 2016 Omnibus Incentive Plan, reflecting compensation rather than an open-market purchase or sale transaction.

How many AP shares did William K. Lieberman receive in this equity award?

He received 7,374 shares of restricted Common Stock. These shares were granted at a stated price of $0.0000 per share as part of his director compensation and are subject to vesting conditions tied to the first anniversary of the grant date.

When do William K. Lieberman’s newly granted AP restricted shares vest?

The restricted stock grant vests on the first anniversary of the grant date. Until vesting, the shares remain subject to forfeiture conditions under the Ampco-Pittsburgh Corporation 2016 Omnibus Incentive Plan, as described in the Form 4 footnote.

What are William K. Lieberman’s AP share holdings after this reported transaction?

After the restricted stock grant, his reported direct holdings total 58,286 shares of Common Stock. The filing also notes that some holdings are joint with his spouse, indicating shared ownership of at least a portion of these shares.

Was William K. Lieberman’s AP stock grant an open-market purchase or sale?

No, the transaction was coded as a grant or award acquisition, not a market trade. The 7,374 restricted shares were issued as compensation under the company’s incentive plan, with no cash consideration reported per share.

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

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Accepted by SEC EDGAR 05/18/2026 - 11:21 AM 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^*

LIEBERMAN WILLIAM K

(Last) (First) (Middle)

726 BELL AVENUE

SUITE 301

(Street)

CARNEGIE PENNSYLVANIA 15106

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
AMPCO PITTSBURGH CORP [ AP ]

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)
05/15/2026

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
Common Stock	05/15/2026		A		7,374(1)	A	$0	58,286	D
Common Stock								25,000	D(2)

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

Explanation of Responses:

1. Represents a grant of restricted stock under the Ampco-Pittsburgh Corporation 2016 Omnibus Incentive Plan, as amended and restated May 8, 2025. These grants of restricted stock vest on the first anniversary of the grant date.

2. Joint with spouse

	Kimberly P. Knox, attorney-in-fact	05/18/2026
	** 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)