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The reporting person undertakes to provide Griffon Corporation, any security holder of Griffon Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares disposed of at each price within the ranges set forth in footnotes (1), (2), (3), (4), (5), (6), (7), (8), (9), (10), (11), and (12) to this Form 4."}],"balance_after":785283,"source":{"system":"sec-edgar","filing":"0001628280-26-054911","document":"wk-form4_1786136557.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/50725/000162828026054911/wk-form4_1786136557.xml","form_type":"4"}},{"id":720323,"issuer":{"id":3998,"kind":"organization","name":"GRIFFON CORP"},"owners":[{"id":23924,"kind":"person","name":"MEHMEL ROBERT F","position":1,"cik":"0001201289","reported_name":"MEHMEL ROBERT F","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and COO"}}],"security":"Common Stock","published_at":"2026-07-02T21:00:32.000Z","date":"2026-06-30","kind":"sale","planned":true,"acquired":false,"shares":4166,"price":97.76,"value":407268.16,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in Column 4 is a weighted average price.  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The reporting person undertakes to provide Griffon Corporation, any security holder of Griffon Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares disposed of at each price within the range set forth in this footnote."}],"balance_after":785900,"source":{"system":"sec-edgar","filing":"0001628280-26-047020","document":"wk-form4_1783026029.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/50725/000162828026047020/wk-form4_1783026029.xml","form_type":"4"}},{"id":720330,"issuer":{"id":3998,"kind":"organization","name":"GRIFFON CORP"},"owners":[{"id":24889,"kind":"person","name":"Harris Brian G","position":1,"cik":"0001470077","reported_name":"Harris Brian G","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Chief Financial Officer"}}],"security":"Common Stock","published_at":"2026-07-02T21:00:25.000Z","date":"2026-06-30","kind":"sale","planned":true,"acquired":false,"shares":6183,"price":98.01,"value":605995.83,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in Column 4 is a weighted average price.  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The reporting person undertakes to provide Griffon Corporation, any security holder of Griffon Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares disposed of at each price within the range set forth in this footnote."}],"balance_after":144966,"source":{"system":"sec-edgar","filing":"0001628280-26-047019","document":"wk-form4_1783026021.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/50725/000162828026047019/wk-form4_1783026021.xml","form_type":"4"}},{"id":723492,"issuer":{"id":3998,"kind":"organization","name":"GRIFFON CORP"},"owners":[{"id":23924,"kind":"person","name":"MEHMEL ROBERT F","position":1,"cik":"0001201289","reported_name":"MEHMEL ROBERT F","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and COO"}}],"security":"Common Stock","published_at":"2026-06-30T21:00:13.000Z","date":"2026-06-26","kind":"sale","planned":true,"acquired":false,"shares":4,"price":97.5,"value":390.0,"ownership":{"direct":true},"balance_after":790066,"source":{"system":"sec-edgar","filing":"0001628280-26-046279","document":"wk-form4_1782853210.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/50725/000162828026046279/wk-form4_1782853210.xml","form_type":"4"}},{"id":723491,"issuer":{"id":3998,"kind":"organization","name":"GRIFFON CORP"},"owners":[{"id":23924,"kind":"person","name":"MEHMEL ROBERT F","position":1,"cik":"0001201289","reported_name":"MEHMEL ROBERT F","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and COO"}}],"security":"Common Stock","published_at":"2026-06-30T21:00:13.000Z","date":"2026-06-26","kind":"sale","planned":true,"acquired":false,"shares":52,"price":96.14,"value":4999.28,"ownership":{"direct":true},"balance_after":790070,"source":{"system":"sec-edgar","filing":"0001628280-26-046279","document":"wk-form4_1782853210.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/50725/000162828026046279/wk-form4_1782853210.xml","form_type":"4"}},{"id":723490,"issuer":{"id":3998,"kind":"organization","name":"GRIFFON CORP"},"owners":[{"id":23924,"kind":"person","name":"MEHMEL ROBERT F","position":1,"cik":"0001201289","reported_name":"MEHMEL ROBERT F","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and COO"}}],"security":"Common Stock","published_at":"2026-06-30T21:00:13.000Z","date":"2026-06-26","kind":"sale","planned":true,"acquired":false,"shares":230,"price":95.52,"value":21969.6,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in Column 4 is a weighted average price.  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The reporting person undertakes to provide Griffon Corporation, any security holder of Griffon Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares disposed of at each price within the ranges set forth in this Form 4."}],"balance_after":790122,"source":{"system":"sec-edgar","filing":"0001628280-26-046279","document":"wk-form4_1782853210.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/50725/000162828026046279/wk-form4_1782853210.xml","form_type":"4"}},{"id":726080,"issuer":{"id":3998,"kind":"organization","name":"GRIFFON CORP"},"owners":[{"id":23924,"kind":"person","name":"MEHMEL ROBERT F","position":1,"cik":"0001201289","reported_name":"MEHMEL ROBERT F","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and COO"}}],"security":"Common Stock","published_at":"2026-06-26T21:00:16.000Z","date":"2026-06-25","kind":"sale","planned":true,"acquired":false,"shares":1190,"price":97.27,"value":115751.3,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price.  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