AMPCO PITTSBURGH CORP — Director's Dealing 2011

May 10, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: AMPCO PITTSBURGH CORP (AP)
CIK: 0000006176
Period of Report: 2011-05-06

Reporting Person: SIDDONS ERNEST G (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-05-06	Common Stock	A	993	$25.18	Acquired	993	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	6833	Direct

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Non-Qualified Stock Options	$37.89	2018-09-04	Common Stock (35000)	35000	Direct
Non-Qualified Stock Options	$13.37	2019-02-19	Common Stock (11668)	11668	Direct

Footnotes

F1: Joint w/spouse.

F2: Subject to acceleration in certain circumstances, the option becomes vested and exercisable under the following schedule assuming the optionee continues employment with the Issuer through the date of vesting: 33% on the grant date, 66% on the first anniversary of the grant date, 100% on the second anniversary of the grant date.