[Form 4] AMPCO PITTSBURGH CORP Insider Trading Activity

Rhea-AI Filing Summary

DeMichiei Robert reported acquisition or exercise transactions in this Form 4 filing.

Ampco-Pittsburgh Corporation director Robert DeMichiei received a grant of 7,374 shares of Common Stock as restricted stock under the company’s 2016 Omnibus Incentive Plan. The award was granted at no cash price and is reported as directly owned.

Following this grant, DeMichiei holds 85,559 shares of Ampco-Pittsburgh Common Stock. According to the disclosure, these restricted stock shares will vest on the first anniversary of the grant date, tying part of his compensation to continued service and future company performance.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider DeMichiei Robert

Role null

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

Holdings After Transaction: Common Stock — 85,559 shares (Direct, null)

Footnotes (1)

1. [object Object]

Key Figures

Restricted stock grant: 7,374 shares Post-grant holdings: 85,559 shares Grant price per share: $0.0000 per share +2 more

5 metrics

Restricted stock grant 7,374 shares Common Stock award to director Robert DeMichiei

Post-grant holdings 85,559 shares Total Common Stock held after the reported grant

Grant price per share $0.0000 per share Equity compensation, no cash paid for restricted stock

Vesting period 1 year Restricted stock vests on first anniversary of grant date

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

Key Terms

restricted stock, 2016 Omnibus Incentive Plan, vest, Grant, award, or other acquisition

4 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"

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.

Grant, award, or other acquisition financial

"transaction_code_description": "Grant, award, or other acquisition""

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^*

DeMichiei Robert

(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	85,559	D

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.

	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)