AP Ampco Pittsburgh Corp

FORM 4 ☐ Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES	OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response... 0.5
	Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

1. Name and Address of Reporting Person * PFORZHEIMER CARL H II	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)
(Last)          (First)          (Middle) 726 BELL AVENUE, SUITE 301	3. Date of Earliest Transaction (MM/DD/YYYY) 9/22/2020
(Street) CARNEGIE, PA 15106	4. If Amendment, Date Original Filed (MM/DD/YYYY)	6. Individual or Joint/Group Filing (Check Applicable Line) _X _ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person
(City)        (State)        (Zip)	Rule 10b5-1(c) Transaction Indication ☐ Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security (Instr. 3)	2. Trans. Date	2A. Deemed Execution Date, if any	3. Trans. 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	9/22/2020 (1)		X(2)		714	A	$3.50	2314	I	See Footnote (3)
Common Stock	7/22/2022 (1)		M(4)		714	A	$4.00 (4)	3028	I	See Footnote (3)
Common Stock								141383	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Trans. Date	3A. Deemed Execution Date, if any	4. Trans. 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		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 of Derivative Security: 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
Subscription Rights (right to buy)	$1.5624	9/22/2020 (1)		X (2)			1600	8/18/2020	9/18/2020	Units consisting of Common Stock and Series A Warrants (2)	(2)	$0.00	0	I	See Footnote (3)
Series A Warrant (right to buy) (5)	$2.5668 (5)	9/22/2020 (1)		X (2)		1600 (5)		9/22/2020	8/1/2025	Common Stock	714	(2)	1600	I	See Footnote (3)
Series A Warrant (right to buy) (5)	$2.5668 (5)	7/22/2022 (1)		M (4)			1600 (5)	9/22/2020	8/1/2025	Common Stock	714	(6)	0	I	See Footnote (3)

Explanation of Responses:
(1)	This Form 4 is being filed to include the acquisition of shares of common stock and Series A Warrants that had been inadvertently omitted.
(2)	Represents the conversion of a subscription right issued by the Issuer as part of a rights offering that closed on September 22, 2020 (the "Rights Offering"). Each subscription right was exercisable for units that consisted of (i) 0.4464 shares of common stock and (ii) a Series A warrant exercisable to acquire 0.4464 shares of common stock at an exercise price of $2.5668 (or $5.75 per whole share of common stock under the Series A warrants). The subscription price of each unit was $1.5624 per unit (or $3.50 per whole share of common stock and Series A warrants to purchase a whole share of common stock). The securities issued upon conversion of the subscription rights are exempted from Section 16(b) pursuant to Rule 16b-3.
(3)	Shares are held equally between two different trusts, including half of the shares that are held by a trust of which Reporting Person is a trustee and principal beneficiary and the other half are held by a trust of which Reporting Person is a trustee in which he disclaims beneficial ownership.
(4)	Represents the conversion of Series A warrants issued by the Issuer as part of the Rights Offering, converted at the temporarily discounted price of $1.7856 per Series A warrant (or $4.00 per whole share of the Issuer's common stock). Beginning May 31, 2022 and expiring at 11:59 p.m. Eastern Time on July 15, 2022, the Issuer through an offer to exercise offered holders of the Issuer's outstanding Series A warrants the opportunity to exercise their Series A warrants at the temporarily reduced exercise price of $1.7856 per Series A warrant (or $4.00 per whole share of the Corporation's common stock).
(5)	Other than between May 31, 2022 and before 11:59 p.m. Eastern Time on July 15, 2022, when each Series A warrant represented the right to purchase 0.4464 shares of common stock at a temporarily reduced exercise price of $1.7856 per each Series A warrant, each Series A warrant represents the right to purchase 0.4464 shares of common stock at an exercise price of $2.5668 per series A warrant (or $5.75 per whole share of the Issuer's common stock). The Series A warrants are exercisable only for whole numbers of shares of Common Stock.
(6)	Series A warrants were issued on September 22, 2020 upon the conversion of a subscription right issued by the Issuer as part of a rights offering. Each subscription right was exercisable for units that consisted of (i) 0.4464 shares of common stock and (ii) a Series A warrant exercisable to acquire 0.4464 shares of common stock at an exercise price of $2.5668 (or $5.75 per whole share of common stock under the Series A warrants). The subscription price of each unit was $1.5624 per unit (or $3.50 per whole share of common stock and Series A warrants to purchase a whole share of common stock). The securities issued upon conversion of the subscription rights are exempted from Section 16(b) pursuant to Rule 16b-3.

Reporting Owners
Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
PFORZHEIMER CARL H II 726 BELL AVENUE SUITE 301 CARNEGIE, PA 15106	X

Signatures
/s/ Kimberly P. Knox, attorney-in-fact		5/24/2023
**Signature of Reporting Person		Date

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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