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The reporting person undertakes to provide Ampco-Pittsburgh Corporation (the \"Company\"), any security holder of the company, or the Staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within this range."}],"balance_after":22396,"source":{"system":"sec-edgar","filing":"0001209191-19-000027","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/6176/000120919119000027/doc4.xml","form_type":"4"}},{"id":3766185,"issuer":{"id":6411,"kind":"organization","name":"AMPCO PITTSBURGH CORP"},"owners":[{"id":131798,"kind":"person","name":"KENNY TERRENCE W","position":1,"cik":"0001190957","reported_name":"KENNY TERRENCE W","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President,Air&Liq. Proc. 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The reporting person undertakes to provide Ampco-Pittsburgh Corporation (the \"Company\"), any security holder of the company, or the Staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within this range."}],"balance_after":18396,"source":{"system":"sec-edgar","filing":"0001209191-18-058423","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/6176/000120919118058423/doc4.xml","form_type":"4"}},{"id":3940443,"issuer":{"id":6411,"kind":"organization","name":"AMPCO PITTSBURGH CORP"},"owners":[{"id":131798,"kind":"person","name":"KENNY TERRENCE W","position":1,"cik":"0001190957","reported_name":"KENNY TERRENCE W","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President,Air&Liq. Proc. 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Restricted stock units vest in three equal annual installments beginning on the first anniversary of the grant date."}],"balance_after":14396,"source":{"system":"sec-edgar","filing":"0001209191-18-029148","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/6176/000120919118029148/doc4.xml","form_type":"4"}},{"id":3945241,"issuer":{"id":6411,"kind":"organization","name":"AMPCO PITTSBURGH CORP"},"owners":[{"id":131798,"kind":"person","name":"KENNY TERRENCE W","position":1,"cik":"0001190957","reported_name":"KENNY TERRENCE W","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President,Air&Liq. Proc. 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The final 1/3 of the restricted stock units vested on May 5, 2018 and is reported on table I of this form 4."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The reporting person received a grant of 2,623 restricted stock units, which vest in 3 annual installments, beginning on May 5, 2016. 1/3 of the restricted stock units vested on May 5, 2016. 1/3 of the restricted stock units vested on May 5, 2017. The final 1/3 of the restricted stock units vested on May 5, 2018 and is reported on table I of this form 4."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":875},"source":{"system":"sec-edgar","filing":"0001209191-18-028235","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/6176/000120919118028235/doc4.xml","form_type":"4"}},{"id":3945240,"issuer":{"id":6411,"kind":"organization","name":"AMPCO PITTSBURGH CORP"},"owners":[{"id":131798,"kind":"person","name":"KENNY TERRENCE W","position":1,"cik":"0001190957","reported_name":"KENNY TERRENCE W","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President,Air&Liq. Proc. 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The remainder will continue to vest in one installment through the remainder of the term."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"The reporting person received a grant of 2,623 restricted stock units, which vest in 3 annual installments, beginning on May 5, 2016. 1/3 of the restricted stock units vested on May 5, 2016. 1/3 of the restricted stock units vested on May 5, 2017 and is reported on Table I of this Form 4. The remainder will continue to vest in one installment through the remainder of the term."}],"balance_after":875,"derivative":{"underlying":"Common Stock","underlying_shares":874},"source":{"system":"sec-edgar","filing":"0001209191-17-031267","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/6176/000120919117031267/doc4.xml","form_type":"4"}},{"id":4327843,"issuer":{"id":6411,"kind":"organization","name":"AMPCO PITTSBURGH CORP"},"owners":[{"id":131798,"kind":"person","name":"KENNY TERRENCE W","position":1,"cik":"0001190957","reported_name":"KENNY TERRENCE W","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President,Air&Liq. Proc. 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Restricted stock units vest in three equal annual installments beginning on the first anniversary of the grant date."}],"balance_after":7884,"source":{"system":"sec-edgar","filing":"0001209191-17-031267","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/6176/000120919117031267/doc4.xml","form_type":"4"}},{"id":4327836,"issuer":{"id":6411,"kind":"organization","name":"AMPCO PITTSBURGH CORP"},"owners":[{"id":131798,"kind":"person","name":"KENNY TERRENCE W","position":1,"cik":"0001190957","reported_name":"KENNY TERRENCE W","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President,Air&Liq. Proc. 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Restricted stock units vest in three equal annual installments beginning on the first anniversary of the grant date."}],"balance_after":4884,"source":{"system":"sec-edgar","filing":"0001209191-17-031262","document":"doc4a.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/6176/000120919117031262/doc4a.xml","form_type":"4/A","original_submission_date":"2016-05-09"}}]}