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Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"On March 31, 2026, the reporting person was granted 16,147.56 restricted stock units, of which 5,382.52 will vest on the first anniversary of the grant date, 5,382.52 will vest on the second anniversary of the grant date and 5,382.52 will vest on the third anniversary of the grant date. 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Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F11","text":"On March 31, 2026, the reporting person was granted 9,900 restricted stock units, of which 3,300 will vest on the first anniversary of the grant date, 3,300 will vest on the second anniversary of the grant date and 3,300 will vest on the third anniversary of the grant date. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates."}],"balance_after":9900,"derivative":{"underlying":"Common Stock","underlying_shares":9900},"source":{"system":"sec-edgar","filing":"0000899140-26-000357","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1627959/000089914026000357/form4.xml","form_type":"4"}},{"id":819513,"issuer":{"id":4782,"kind":"organization","name":"Ryerson Holding Corp","symbol":"RYZ"},"owners":[{"id":35976,"kind":"person","name":"Silver Mark S.","position":1,"cik":"0001627959","reported_name":"Silver Mark S.","relationship":{"officer":true,"officer_title":"EVP, Chief Legal/Risk Officer"}}],"security":"Restricted Stock Units","published_at":"2026-04-03T00:45:00.000Z","date":"2026-03-31","kind":"exercise","planned":false,"acquired":false,"shares":3412,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each restricted stock unit represents a contingent right to receive one share of common stock of the Company."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The restricted stock units reported as disposed herein were settled for shares of common stock of the Company."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F9","text":"On March 31, 2025, the reporting person was granted 9,900 restricted stock units, of which 3,300 vested on the first anniversary of the grant date. Of the remaining unvested restricted stock units, 3,300 will vest on the second anniversary of the grant date and 3,300 will vest on the third anniversary of the grant date. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F10","text":"Settlement of dividend equivalent rights in connection with the vesting of underlying restricted stock units that were granted on March 31, 2025. The dividend equivalent rights accrued when and as the Company declared quarterly dividends and vested proportionately with the restricted stock unit to which they related. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F9","text":"On March 31, 2025, the reporting person was granted 9,900 restricted stock units, of which 3,300 vested on the first anniversary of the grant date. Of the remaining unvested restricted stock units, 3,300 will vest on the second anniversary of the grant date and 3,300 will vest on the third anniversary of the grant date. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F10","text":"Settlement of dividend equivalent rights in connection with the vesting of underlying restricted stock units that were granted on March 31, 2025. The dividend equivalent rights accrued when and as the Company declared quarterly dividends and vested proportionately with the restricted stock unit to which they related. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates."}],"balance_after":6826.324,"derivative":{"underlying":"Common Stock","underlying_shares":3412},"source":{"system":"sec-edgar","filing":"0000899140-26-000357","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1627959/000089914026000357/form4.xml","form_type":"4"}},{"id":819512,"issuer":{"id":4782,"kind":"organization","name":"Ryerson Holding Corp","symbol":"RYZ"},"owners":[{"id":35976,"kind":"person","name":"Silver Mark S.","position":1,"cik":"0001627959","reported_name":"Silver Mark S.","relationship":{"officer":true,"officer_title":"EVP, Chief Legal/Risk Officer"}}],"security":"Restricted Stock Units","published_at":"2026-04-03T00:45:00.000Z","date":"2026-03-31","kind":"exercise","planned":false,"acquired":false,"shares":2947,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each restricted stock unit represents a contingent right to receive one share of common stock of the Company."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The restricted stock units reported as disposed herein were settled for shares of common stock of the Company."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F7","text":"On March 31, 2024, the reporting person was granted 8,250 restricted stock units, of which 2,750 vested on the first anniversary of the grant date and 2,750 vested on the second anniversary of the grant date. All 2,750 of the remaining unvested restricted stock units will vest on the third anniversary of the grant date. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F8","text":"Settlement of dividend equivalent rights in connection with the vesting of underlying restricted stock units that were granted on March 31, 2024. The dividend equivalent rights accrued when and as the Company declared quarterly dividends and vested proportionately with the restricted stock unit to which they related. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F7","text":"On March 31, 2024, the reporting person was granted 8,250 restricted stock units, of which 2,750 vested on the first anniversary of the grant date and 2,750 vested on the second anniversary of the grant date. All 2,750 of the remaining unvested restricted stock units will vest on the third anniversary of the grant date. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F8","text":"Settlement of dividend equivalent rights in connection with the vesting of underlying restricted stock units that were granted on March 31, 2024. The dividend equivalent rights accrued when and as the Company declared quarterly dividends and vested proportionately with the restricted stock unit to which they related. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates."}],"balance_after":2946.781,"derivative":{"underlying":"Common Stock","underlying_shares":2947},"source":{"system":"sec-edgar","filing":"0000899140-26-000357","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1627959/000089914026000357/form4.xml","form_type":"4"}},{"id":819511,"issuer":{"id":4782,"kind":"organization","name":"Ryerson Holding Corp","symbol":"RYZ"},"owners":[{"id":35976,"kind":"person","name":"Silver Mark S.","position":1,"cik":"0001627959","reported_name":"Silver Mark S.","relationship":{"officer":true,"officer_title":"EVP, Chief Legal/Risk Officer"}}],"security":"Restricted Stock Units","published_at":"2026-04-03T00:45:00.000Z","date":"2026-03-31","kind":"exercise","planned":false,"acquired":false,"shares":3014,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each restricted stock unit represents a contingent right to receive one share of common stock of the Company."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The restricted stock units reported as disposed herein were settled for shares of common stock of the Company."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"On March 31, 2023, the reporting person was granted 8,250 restricted stock units, of which 2,750 vested on the first anniversary of the grant date, 2,750 vested on the second anniversary of the grant date and 2,750 vested on the third anniversary of the grant date. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"Settlement of dividend equivalent rights in connection with the vesting of underlying restricted stock units that were granted on March 31, 2023. The dividend equivalent rights accrued when and as the Company declared quarterly dividends and vested proportionately with the restricted stock unit to which they related. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"On March 31, 2023, the reporting person was granted 8,250 restricted stock units, of which 2,750 vested on the first anniversary of the grant date, 2,750 vested on the second anniversary of the grant date and 2,750 vested on the third anniversary of the grant date. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F6","text":"Settlement of dividend equivalent rights in connection with the vesting of underlying restricted stock units that were granted on March 31, 2023. The dividend equivalent rights accrued when and as the Company declared quarterly dividends and vested proportionately with the restricted stock unit to which they related. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":3014},"source":{"system":"sec-edgar","filing":"0000899140-26-000357","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1627959/000089914026000357/form4.xml","form_type":"4"}},{"id":819510,"issuer":{"id":4782,"kind":"organization","name":"Ryerson Holding Corp","symbol":"RYZ"},"owners":[{"id":35976,"kind":"person","name":"Silver Mark S.","position":1,"cik":"0001627959","reported_name":"Silver Mark S.","relationship":{"officer":true,"officer_title":"EVP, Chief Legal/Risk Officer"}}],"security":"Common Stock (par value $0.01 per share)","published_at":"2026-04-03T00:45:00.000Z","date":"2026-03-31","kind":"tax_withholding","planned":false,"acquired":false,"shares":7509,"price":22.48,"value":168802.32,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F12","text":"Represents shares that have been withheld by the Company to satisfy its income tax and withholding remittance obligations in connection with the net settlement of restricted stock units."}],"balance_after":131355,"source":{"system":"sec-edgar","filing":"0000899140-26-000357","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1627959/000089914026000357/form4.xml","form_type":"4"}},{"id":819509,"issuer":{"id":4782,"kind":"organization","name":"Ryerson Holding Corp","symbol":"RYZ"},"owners":[{"id":35976,"kind":"person","name":"Silver Mark S.","position":1,"cik":"0001627959","reported_name":"Silver Mark S.","relationship":{"officer":true,"officer_title":"EVP, Chief Legal/Risk Officer"}}],"security":"Common Stock (par value $0.01 per share)","published_at":"2026-04-03T00:45:00.000Z","date":"2026-03-31","kind":"exercise","planned":false,"acquired":true,"shares":8375,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Represents shares received or that will be received in respect of performance-based restricted stock units granted on March 31, 2023. Each performance-based restricted stock unit became vested on March 31, 2026, which was the later of (i) the third anniversary of the grant date and (ii) the date the compensation committee certified the achievement of the applicable performance objectives in accordance with the underlying award agreement. The compensation committee certified the achievement of the applicable performance objectives on March 31, 2026. Vested shares will be delivered to the reporting person not later than 60 days following the vesting date."}],"balance_after":138864,"source":{"system":"sec-edgar","filing":"0000899140-26-000357","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1627959/000089914026000357/form4.xml","form_type":"4"}},{"id":819508,"issuer":{"id":4782,"kind":"organization","name":"Ryerson Holding Corp","symbol":"RYZ"},"owners":[{"id":35976,"kind":"person","name":"Silver Mark S.","position":1,"cik":"0001627959","reported_name":"Silver Mark S.","relationship":{"officer":true,"officer_title":"EVP, Chief Legal/Risk Officer"}}],"security":"Common Stock (par value $0.01 per share)","published_at":"2026-04-03T00:45:00.000Z","date":"2026-03-31","kind":"exercise","planned":false,"acquired":true,"shares":3412,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents shares received upon the vesting of restricted stock units and shares received upon the vesting of dividend equivalent rights granted in connection with the quarterly dividends declared by Ryerson Holding Corporation (the \"Company\"). Dividend equivalent rights are subject to the same terms and conditions, including vesting, as the underlying restricted stock units."}],"balance_after":130489,"source":{"system":"sec-edgar","filing":"0000899140-26-000357","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1627959/000089914026000357/form4.xml","form_type":"4"}},{"id":819507,"issuer":{"id":4782,"kind":"organization","name":"Ryerson Holding Corp","symbol":"RYZ"},"owners":[{"id":35976,"kind":"person","name":"Silver Mark S.","position":1,"cik":"0001627959","reported_name":"Silver Mark S.","relationship":{"officer":true,"officer_title":"EVP, Chief Legal/Risk Officer"}}],"security":"Common Stock (par value $0.01 per share)","published_at":"2026-04-03T00:45:00.000Z","date":"2026-03-31","kind":"exercise","planned":false,"acquired":true,"shares":2947,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents shares received upon the vesting of restricted stock units and shares received upon the vesting of dividend equivalent rights granted in connection with the quarterly dividends declared by Ryerson Holding Corporation (the \"Company\"). Dividend equivalent rights are subject to the same terms and conditions, including vesting, as the underlying restricted stock units."}],"balance_after":127077,"source":{"system":"sec-edgar","filing":"0000899140-26-000357","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1627959/000089914026000357/form4.xml","form_type":"4"}},{"id":819506,"issuer":{"id":4782,"kind":"organization","name":"Ryerson Holding Corp","symbol":"RYZ"},"owners":[{"id":35976,"kind":"person","name":"Silver Mark S.","position":1,"cik":"0001627959","reported_name":"Silver Mark S.","relationship":{"officer":true,"officer_title":"EVP, Chief Legal/Risk Officer"}}],"security":"Common Stock (par value $0.01 per share)","published_at":"2026-04-03T00:45:00.000Z","date":"2026-03-31","kind":"exercise","planned":false,"acquired":true,"shares":3014,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents shares received upon the vesting of restricted stock units and shares received upon the vesting of dividend equivalent rights granted in connection with the quarterly dividends declared by Ryerson Holding Corporation (the \"Company\"). Dividend equivalent rights are subject to the same terms and conditions, including vesting, as the underlying restricted stock units."}],"balance_after":124130,"source":{"system":"sec-edgar","filing":"0000899140-26-000357","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1627959/000089914026000357/form4.xml","form_type":"4"}},{"id":819462,"issuer":{"id":4782,"kind":"organization","name":"Ryerson Holding Corp","symbol":"RYZ"},"owners":[{"id":35967,"kind":"person","name":"Lehner Edward J.","position":1,"cik":"0001614103","reported_name":"Lehner Edward J.","relationship":{"director":true,"officer":true,"officer_title":"CEO"}}],"security":"Restricted Stock Units","published_at":"2026-04-03T00:42:51.000Z","date":"2026-03-31","kind":"grant","planned":false,"acquired":true,"shares":36300,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each restricted stock unit represents a contingent right to receive one share of common stock of the Company."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F11","text":"On March 31, 2026, the reporting person was granted 36,300 restricted stock units, of which 12,100 will vest on the first anniversary of the grant date, 12,100 will vest on the second anniversary of the grant date and 12,100 will vest on the third anniversary of the grant date. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F11","text":"On March 31, 2026, the reporting person was granted 36,300 restricted stock units, of which 12,100 will vest on the first anniversary of the grant date, 12,100 will vest on the second anniversary of the grant date and 12,100 will vest on the third anniversary of the grant date. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates."}],"balance_after":36300,"derivative":{"underlying":"Common Stock","underlying_shares":36300},"source":{"system":"sec-edgar","filing":"0000899140-26-000356","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1481582/000089914026000356/form4.xml","form_type":"4"}},{"id":819461,"issuer":{"id":4782,"kind":"organization","name":"Ryerson Holding Corp","symbol":"RYZ"},"owners":[{"id":35967,"kind":"person","name":"Lehner Edward J.","position":1,"cik":"0001614103","reported_name":"Lehner Edward J.","relationship":{"director":true,"officer":true,"officer_title":"CEO"}}],"security":"Restricted Stock Units","published_at":"2026-04-03T00:42:51.000Z","date":"2026-03-31","kind":"exercise","planned":false,"acquired":false,"shares":12513,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each restricted stock unit represents a contingent right to receive one share of common stock of the Company."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The restricted stock units reported as disposed herein were settled for shares of common stock of the Company."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F9","text":"On March 31, 2025, the reporting person was granted 36,300 restricted stock units, of which 12,100 vested on the first anniversary of the grant date. Of the remaining unvested restricted stock units, 12,100 will vest on the second anniversary of the grant date and 12,100 will vest on the third anniversary of the grant date. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F10","text":"Settlement of dividend equivalent rights in connection with the vesting of underlying restricted stock units that were granted on March 31, 2025. The dividend equivalent rights accrued when and as the Company declared quarterly dividends and vested proportionately with the restricted stock unit to which they related. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F9","text":"On March 31, 2025, the reporting person was granted 36,300 restricted stock units, of which 12,100 vested on the first anniversary of the grant date. Of the remaining unvested restricted stock units, 12,100 will vest on the second anniversary of the grant date and 12,100 will vest on the third anniversary of the grant date. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F10","text":"Settlement of dividend equivalent rights in connection with the vesting of underlying restricted stock units that were granted on March 31, 2025. The dividend equivalent rights accrued when and as the Company declared quarterly dividends and vested proportionately with the restricted stock unit to which they related. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates."}],"balance_after":25027.517,"derivative":{"underlying":"Common Stock","underlying_shares":12513},"source":{"system":"sec-edgar","filing":"0000899140-26-000356","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1481582/000089914026000356/form4.xml","form_type":"4"}},{"id":819460,"issuer":{"id":4782,"kind":"organization","name":"Ryerson Holding Corp","symbol":"RYZ"},"owners":[{"id":35967,"kind":"person","name":"Lehner Edward J.","position":1,"cik":"0001614103","reported_name":"Lehner Edward J.","relationship":{"director":true,"officer":true,"officer_title":"CEO"}}],"security":"Restricted Stock Units","published_at":"2026-04-03T00:42:51.000Z","date":"2026-03-31","kind":"exercise","planned":false,"acquired":false,"shares":12965,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each restricted stock unit represents a contingent right to receive one share of common stock of the Company."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The restricted stock units reported as disposed herein were settled for shares of common stock of the Company."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F7","text":"On March 31, 2024, the reporting person was granted 36,300 restricted stock units, of which 12,100 vested on the first anniversary of the grant date and 12,100 vested on the second anniversary of the grant date. All 12,100 of the remaining unvested restricted stock units will vest on the third anniversary of the grant date. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F8","text":"Settlement of dividend equivalent rights in connection with the vesting of underlying restricted stock units that were granted on March 31, 2024. The dividend equivalent rights accrued when and as the Company declared quarterly dividends and vested proportionately with the restricted stock unit to which they related. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F7","text":"On March 31, 2024, the reporting person was granted 36,300 restricted stock units, of which 12,100 vested on the first anniversary of the grant date and 12,100 vested on the second anniversary of the grant date. All 12,100 of the remaining unvested restricted stock units will vest on the third anniversary of the grant date. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F8","text":"Settlement of dividend equivalent rights in connection with the vesting of underlying restricted stock units that were granted on March 31, 2024. The dividend equivalent rights accrued when and as the Company declared quarterly dividends and vested proportionately with the restricted stock unit to which they related. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates."}],"balance_after":12966.179,"derivative":{"underlying":"Common Stock","underlying_shares":12965},"source":{"system":"sec-edgar","filing":"0000899140-26-000356","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1481582/000089914026000356/form4.xml","form_type":"4"}},{"id":819459,"issuer":{"id":4782,"kind":"organization","name":"Ryerson Holding Corp","symbol":"RYZ"},"owners":[{"id":35967,"kind":"person","name":"Lehner Edward J.","position":1,"cik":"0001614103","reported_name":"Lehner Edward J.","relationship":{"director":true,"officer":true,"officer_title":"CEO"}}],"security":"Restricted Stock Units","published_at":"2026-04-03T00:42:51.000Z","date":"2026-03-31","kind":"exercise","planned":false,"acquired":false,"shares":13258,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each restricted stock unit represents a contingent right to receive one share of common stock of the Company."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The restricted stock units reported as disposed herein were settled for shares of common stock of the Company."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"On March 31, 2023, the reporting person was granted 36,300 restricted stock units, of which 12,100 vested on the first anniversary of the grant date, 12,100 vested on the second anniversary of the grant date and 12,100 vested on the third anniversary of the grant date. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"Settlement of dividend equivalent rights in connection with the vesting of underlying restricted stock units that were granted on March 31, 2023. The dividend equivalent rights accrued when and as the Company declared quarterly dividends and vested proportionately with the restricted stock unit to which they related. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"On March 31, 2023, the reporting person was granted 36,300 restricted stock units, of which 12,100 vested on the first anniversary of the grant date, 12,100 vested on the second anniversary of the grant date and 12,100 vested on the third anniversary of the grant date. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F6","text":"Settlement of dividend equivalent rights in connection with the vesting of underlying restricted stock units that were granted on March 31, 2023. The dividend equivalent rights accrued when and as the Company declared quarterly dividends and vested proportionately with the restricted stock unit to which they related. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":13258},"source":{"system":"sec-edgar","filing":"0000899140-26-000356","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1481582/000089914026000356/form4.xml","form_type":"4"}},{"id":819458,"issuer":{"id":4782,"kind":"organization","name":"Ryerson Holding Corp","symbol":"RYZ"},"owners":[{"id":35967,"kind":"person","name":"Lehner Edward J.","position":1,"cik":"0001614103","reported_name":"Lehner Edward J.","relationship":{"director":true,"officer":true,"officer_title":"CEO"}}],"security":"Common Stock (par value $0.01 per share)","published_at":"2026-04-03T00:42:51.000Z","date":"2026-03-31","kind":"tax_withholding","planned":false,"acquired":false,"shares":32000,"price":22.48,"value":719360.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F12","text":"Represents shares that have been withheld by the Company to satisfy its income tax and withholding remittance obligations in connection with the net settlement of restricted stock units."}],"balance_after":645564.4833,"source":{"system":"sec-edgar","filing":"0000899140-26-000356","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1481582/000089914026000356/form4.xml","form_type":"4"}},{"id":819457,"issuer":{"id":4782,"kind":"organization","name":"Ryerson Holding Corp","symbol":"RYZ"},"owners":[{"id":35967,"kind":"person","name":"Lehner Edward J.","position":1,"cik":"0001614103","reported_name":"Lehner Edward J.","relationship":{"director":true,"officer":true,"officer_title":"CEO"}}],"security":"Common Stock (par value $0.01 per share)","published_at":"2026-04-03T00:42:51.000Z","date":"2026-03-31","kind":"exercise","planned":false,"acquired":true,"shares":36850,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Represents shares received or that will be received in respect of performance-based restricted stock units granted on March 31, 2023. Each performance-based restricted stock unit became vested on March 31, 2026, which was the later of (i) the third anniversary of the grant date and (ii) the date the compensation committee certified the achievement of the applicable performance objectives in accordance with the underlying award agreement. The compensation committee certified the achievement of the applicable performance objectives on March 31, 2026. Vested shares will be delivered to the reporting person not later than 60 days following the vesting date."}],"balance_after":677564.4833,"source":{"system":"sec-edgar","filing":"0000899140-26-000356","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1481582/000089914026000356/form4.xml","form_type":"4"}},{"id":819456,"issuer":{"id":4782,"kind":"organization","name":"Ryerson Holding Corp","symbol":"RYZ"},"owners":[{"id":35967,"kind":"person","name":"Lehner Edward J.","position":1,"cik":"0001614103","reported_name":"Lehner Edward J.","relationship":{"director":true,"officer":true,"officer_title":"CEO"}}],"security":"Common Stock (par value $0.01 per share)","published_at":"2026-04-03T00:42:51.000Z","date":"2026-03-31","kind":"exercise","planned":false,"acquired":true,"shares":12513,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents shares received upon the vesting of restricted stock units and shares received upon the vesting of dividend equivalent rights granted in connection with the quarterly dividends declared by Ryerson Holding Corporation (the \"Company\"). Dividend equivalent rights are subject to the same terms and conditions, including vesting, as the underlying restricted stock units."}],"balance_after":640714.4833,"source":{"system":"sec-edgar","filing":"0000899140-26-000356","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1481582/000089914026000356/form4.xml","form_type":"4"}},{"id":819455,"issuer":{"id":4782,"kind":"organization","name":"Ryerson Holding Corp","symbol":"RYZ"},"owners":[{"id":35967,"kind":"person","name":"Lehner Edward J.","position":1,"cik":"0001614103","reported_name":"Lehner Edward J.","relationship":{"director":true,"officer":true,"officer_title":"CEO"}}],"security":"Common Stock (par value $0.01 per share)","published_at":"2026-04-03T00:42:51.000Z","date":"2026-03-31","kind":"exercise","planned":false,"acquired":true,"shares":12965,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents shares received upon the vesting of restricted stock units and shares received upon the vesting of dividend equivalent rights granted in connection with the quarterly dividends declared by Ryerson Holding Corporation (the \"Company\"). Dividend equivalent rights are subject to the same terms and conditions, including vesting, as the underlying restricted stock units."}],"balance_after":628201.4833,"source":{"system":"sec-edgar","filing":"0000899140-26-000356","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1481582/000089914026000356/form4.xml","form_type":"4"}},{"id":819454,"issuer":{"id":4782,"kind":"organization","name":"Ryerson Holding Corp","symbol":"RYZ"},"owners":[{"id":35967,"kind":"person","name":"Lehner Edward J.","position":1,"cik":"0001614103","reported_name":"Lehner Edward J.","relationship":{"director":true,"officer":true,"officer_title":"CEO"}}],"security":"Common Stock (par value $0.01 per share)","published_at":"2026-04-03T00:42:51.000Z","date":"2026-03-31","kind":"exercise","planned":false,"acquired":true,"shares":13258,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents shares received upon the vesting of restricted stock units and shares received upon the vesting of dividend equivalent rights granted in connection with the quarterly dividends declared by Ryerson Holding Corporation (the \"Company\"). Dividend equivalent rights are subject to the same terms and conditions, including vesting, as the underlying restricted stock units."}],"balance_after":615236.4833,"source":{"system":"sec-edgar","filing":"0000899140-26-000356","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1481582/000089914026000356/form4.xml","form_type":"4"}},{"id":819734,"issuer":{"id":4782,"kind":"organization","name":"Ryerson Holding Corp","symbol":"RYZ"},"owners":[{"id":27781,"kind":"person","name":"Kannan Molly D","position":1,"cik":"0001799091","reported_name":"Kannan Molly D","relationship":{"officer":true,"officer_title":"CAO & Corporate Controller"}}],"security":"Restricted Stock Units","published_at":"2026-04-03T00:40:42.000Z","date":"2026-03-31","kind":"grant","planned":false,"acquired":true,"shares":6600,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each restricted stock unit represents a contingent right to receive one share of common stock of the Company."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F11","text":"On March 31, 2026, the reporting person was granted 6,600 restricted stock units, of which 2,200 will vest on the first anniversary of the grant date, 2,200 will vest on the second anniversary of the grant date and 2,200 will vest on the third anniversary of the grant date. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F11","text":"On March 31, 2026, the reporting person was granted 6,600 restricted stock units, of which 2,200 will vest on the first anniversary of the grant date, 2,200 will vest on the second anniversary of the grant date and 2,200 will vest on the third anniversary of the grant date. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates."}],"balance_after":6600,"derivative":{"underlying":"Common Stock","underlying_shares":6600},"source":{"system":"sec-edgar","filing":"0000899140-26-000355","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1799091/000089914026000355/form4.xml","form_type":"4"}},{"id":819733,"issuer":{"id":4782,"kind":"organization","name":"Ryerson Holding Corp","symbol":"RYZ"},"owners":[{"id":27781,"kind":"person","name":"Kannan Molly D","position":1,"cik":"0001799091","reported_name":"Kannan Molly D","relationship":{"officer":true,"officer_title":"CAO & Corporate Controller"}}],"security":"Restricted Stock Units","published_at":"2026-04-03T00:40:42.000Z","date":"2026-03-31","kind":"exercise","planned":false,"acquired":false,"shares":2275,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each restricted stock unit represents a contingent right to receive one share of common stock of the Company."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The restricted stock units reported as disposed herein were settled for shares of common stock of the Company."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F9","text":"On March 31, 2025, the reporting person was granted 6,600 restricted stock units, of which 2,200 vested on the first anniversary of the grant date. Of the remaining unvested restricted stock units, 2,200 will vest on the second anniversary of the grant date and 2,200 will vest on the third anniversary of the grant date. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F10","text":"Settlement of dividend equivalent rights in connection with the vesting of underlying restricted stock units that were granted on March 31, 2025. The dividend equivalent rights accrued when and as the Company declared quarterly dividends and vested proportionately with the restricted stock unit to which they related. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F9","text":"On March 31, 2025, the reporting person was granted 6,600 restricted stock units, of which 2,200 vested on the first anniversary of the grant date. Of the remaining unvested restricted stock units, 2,200 will vest on the second anniversary of the grant date and 2,200 will vest on the third anniversary of the grant date. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F10","text":"Settlement of dividend equivalent rights in connection with the vesting of underlying restricted stock units that were granted on March 31, 2025. The dividend equivalent rights accrued when and as the Company declared quarterly dividends and vested proportionately with the restricted stock unit to which they related. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates."}],"balance_after":4550.55,"derivative":{"underlying":"Common Stock","underlying_shares":2275},"source":{"system":"sec-edgar","filing":"0000899140-26-000355","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1799091/000089914026000355/form4.xml","form_type":"4"}},{"id":819732,"issuer":{"id":4782,"kind":"organization","name":"Ryerson Holding Corp","symbol":"RYZ"},"owners":[{"id":27781,"kind":"person","name":"Kannan Molly D","position":1,"cik":"0001799091","reported_name":"Kannan Molly D","relationship":{"officer":true,"officer_title":"CAO & Corporate Controller"}}],"security":"Restricted Stock Units","published_at":"2026-04-03T00:40:42.000Z","date":"2026-03-31","kind":"exercise","planned":false,"acquired":false,"shares":2063,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each restricted stock unit represents a contingent right to receive one share of common stock of the Company."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The restricted stock units reported as disposed herein were settled for shares of common stock of the Company."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F7","text":"On March 31, 2024, the reporting person was granted 5,775 restricted stock units, of which 1,925 vested on the first anniversary of the grant date and 1,925 vested on the second anniversary of the grant date. All 1,925 of the remaining unvested restricted stock units will vest on the third anniversary of the grant date. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F8","text":"Settlement of dividend equivalent rights in connection with the vesting of underlying restricted stock units that were granted on March 31, 2024. The dividend equivalent rights accrued when and as the Company declared quarterly dividends and vested proportionately with the restricted stock unit to which they related. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F7","text":"On March 31, 2024, the reporting person was granted 5,775 restricted stock units, of which 1,925 vested on the first anniversary of the grant date and 1,925 vested on the second anniversary of the grant date. All 1,925 of the remaining unvested restricted stock units will vest on the third anniversary of the grant date. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F8","text":"Settlement of dividend equivalent rights in connection with the vesting of underlying restricted stock units that were granted on March 31, 2024. The dividend equivalent rights accrued when and as the Company declared quarterly dividends and vested proportionately with the restricted stock unit to which they related. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates."}],"balance_after":2062.959,"derivative":{"underlying":"Common Stock","underlying_shares":2063},"source":{"system":"sec-edgar","filing":"0000899140-26-000355","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1799091/000089914026000355/form4.xml","form_type":"4"}},{"id":819731,"issuer":{"id":4782,"kind":"organization","name":"Ryerson Holding Corp","symbol":"RYZ"},"owners":[{"id":27781,"kind":"person","name":"Kannan Molly D","position":1,"cik":"0001799091","reported_name":"Kannan Molly D","relationship":{"officer":true,"officer_title":"CAO & Corporate Controller"}}],"security":"Restricted Stock Units","published_at":"2026-04-03T00:40:42.000Z","date":"2026-03-31","kind":"exercise","planned":false,"acquired":false,"shares":2110,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each restricted stock unit represents a contingent right to receive one share of common stock of the Company."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The restricted stock units reported as disposed herein were settled for shares of common stock of the Company."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"On March 31, 2023, the reporting person was granted 5,775 restricted stock units, of which 1,925 vested on the first anniversary of the grant date, 1,925 vested on the second anniversary of the grant date and 1,925 vested on the third anniversary of the grant date. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"Settlement of dividend equivalent rights in connection with the vesting of underlying restricted stock units that were granted on March 31, 2023. The dividend equivalent rights accrued when and as the Company declared quarterly dividends and vested proportionately with the restricted stock unit to which they related. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"On March 31, 2023, the reporting person was granted 5,775 restricted stock units, of which 1,925 vested on the first anniversary of the grant date, 1,925 vested on the second anniversary of the grant date and 1,925 vested on the third anniversary of the grant date. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F6","text":"Settlement of dividend equivalent rights in connection with the vesting of underlying restricted stock units that were granted on March 31, 2023. The dividend equivalent rights accrued when and as the Company declared quarterly dividends and vested proportionately with the restricted stock unit to which they related. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":2110},"source":{"system":"sec-edgar","filing":"0000899140-26-000355","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1799091/000089914026000355/form4.xml","form_type":"4"}},{"id":819730,"issuer":{"id":4782,"kind":"organization","name":"Ryerson Holding Corp","symbol":"RYZ"},"owners":[{"id":27781,"kind":"person","name":"Kannan Molly D","position":1,"cik":"0001799091","reported_name":"Kannan Molly D","relationship":{"officer":true,"officer_title":"CAO & Corporate Controller"}}],"security":"Common Stock (par value $0.01 per share)","published_at":"2026-04-03T00:40:42.000Z","date":"2026-03-31","kind":"tax_withholding","planned":false,"acquired":false,"shares":4691,"price":22.48,"value":105453.68,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F12","text":"Represents shares that have been withheld by the Company to satisfy its income tax and withholding remittance obligations in connection with the net settlement of restricted stock units."}],"balance_after":31136.4636,"source":{"system":"sec-edgar","filing":"0000899140-26-000355","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1799091/000089914026000355/form4.xml","form_type":"4"}},{"id":819729,"issuer":{"id":4782,"kind":"organization","name":"Ryerson Holding Corp","symbol":"RYZ"},"owners":[{"id":27781,"kind":"person","name":"Kannan Molly D","position":1,"cik":"0001799091","reported_name":"Kannan Molly D","relationship":{"officer":true,"officer_title":"CAO & Corporate Controller"}}],"security":"Common Stock (par value $0.01 per share)","published_at":"2026-04-03T00:40:42.000Z","date":"2026-03-31","kind":"exercise","planned":false,"acquired":true,"shares":5863,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Represents shares received or that will be received in respect of performance-based restricted stock units granted on March 31, 2023. Each performance-based restricted stock unit became vested on March 31, 2026, which was the later of (i) the third anniversary of the grant date and (ii) the date the compensation committee certified the achievement of the applicable performance objectives in accordance with the underlying award agreement. The compensation committee certified the achievement of the applicable performance objectives on March 31, 2026. Vested shares will be delivered to the reporting person not later than 60 days following the vesting date."}],"balance_after":35827.4636,"source":{"system":"sec-edgar","filing":"0000899140-26-000355","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1799091/000089914026000355/form4.xml","form_type":"4"}},{"id":819728,"issuer":{"id":4782,"kind":"organization","name":"Ryerson Holding Corp","symbol":"RYZ"},"owners":[{"id":27781,"kind":"person","name":"Kannan Molly D","position":1,"cik":"0001799091","reported_name":"Kannan Molly D","relationship":{"officer":true,"officer_title":"CAO & Corporate Controller"}}],"security":"Common Stock (par value $0.01 per share)","published_at":"2026-04-03T00:40:42.000Z","date":"2026-03-31","kind":"exercise","planned":false,"acquired":true,"shares":2275,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents shares received upon the vesting of restricted stock units and shares received upon the vesting of dividend equivalent rights granted in connection with the quarterly dividends declared by Ryerson Holding Corporation (the \"Company\"). Dividend equivalent rights are subject to the same terms and conditions, including vesting, as the underlying restricted stock units."}],"balance_after":29964.4636,"source":{"system":"sec-edgar","filing":"0000899140-26-000355","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1799091/000089914026000355/form4.xml","form_type":"4"}},{"id":819727,"issuer":{"id":4782,"kind":"organization","name":"Ryerson Holding Corp","symbol":"RYZ"},"owners":[{"id":27781,"kind":"person","name":"Kannan Molly D","position":1,"cik":"0001799091","reported_name":"Kannan Molly D","relationship":{"officer":true,"officer_title":"CAO & Corporate Controller"}}],"security":"Common Stock (par value $0.01 per share)","published_at":"2026-04-03T00:40:42.000Z","date":"2026-03-31","kind":"exercise","planned":false,"acquired":true,"shares":2063,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents shares received upon the vesting of restricted stock units and shares received upon the vesting of dividend equivalent rights granted in connection with the quarterly dividends declared by Ryerson Holding Corporation (the \"Company\"). Dividend equivalent rights are subject to the same terms and conditions, including vesting, as the underlying restricted stock units."}],"balance_after":27689.4636,"source":{"system":"sec-edgar","filing":"0000899140-26-000355","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1799091/000089914026000355/form4.xml","form_type":"4"}},{"id":819726,"issuer":{"id":4782,"kind":"organization","name":"Ryerson Holding Corp","symbol":"RYZ"},"owners":[{"id":27781,"kind":"person","name":"Kannan Molly D","position":1,"cik":"0001799091","reported_name":"Kannan Molly D","relationship":{"officer":true,"officer_title":"CAO & Corporate Controller"}}],"security":"Common Stock (par value $0.01 per share)","published_at":"2026-04-03T00:40:42.000Z","date":"2026-03-31","kind":"exercise","planned":false,"acquired":true,"shares":2110,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents shares received upon the vesting of restricted stock units and shares received upon the vesting of dividend equivalent rights granted in connection with the quarterly dividends declared by Ryerson Holding Corporation (the \"Company\"). Dividend equivalent rights are subject to the same terms and conditions, including vesting, as the underlying restricted stock units."}],"balance_after":25626.4636,"source":{"system":"sec-edgar","filing":"0000899140-26-000355","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1799091/000089914026000355/form4.xml","form_type":"4"}},{"id":819453,"issuer":{"id":4782,"kind":"organization","name":"Ryerson Holding Corp","symbol":"RYZ"},"owners":[{"id":35970,"kind":"person","name":"Claussen James J","position":1,"cik":"0001841035","reported_name":"Claussen James J","relationship":{"officer":true,"officer_title":"Executive Vice President & CFO"}}],"security":"Restricted Stock Units","published_at":"2026-04-03T00:38:46.000Z","date":"2026-03-31","kind":"grant","planned":false,"acquired":true,"shares":13200,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each restricted stock unit represents a contingent right to receive one share of common stock of the Company."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F11","text":"On March 31, 2026, the reporting person was granted 13,200 restricted stock units, of which 4,400 will vest on the first anniversary of the grant date, 4,400 will vest on the second anniversary of the grant date and 4,400 will vest on the third anniversary of the grant date. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F11","text":"On March 31, 2026, the reporting person was granted 13,200 restricted stock units, of which 4,400 will vest on the first anniversary of the grant date, 4,400 will vest on the second anniversary of the grant date and 4,400 will vest on the third anniversary of the grant date. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates."}],"balance_after":13200,"derivative":{"underlying":"Common Stock","underlying_shares":13200},"source":{"system":"sec-edgar","filing":"0000899140-26-000354","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1481582/000089914026000354/form4.xml","form_type":"4"}},{"id":819452,"issuer":{"id":4782,"kind":"organization","name":"Ryerson Holding Corp","symbol":"RYZ"},"owners":[{"id":35970,"kind":"person","name":"Claussen James J","position":1,"cik":"0001841035","reported_name":"Claussen James J","relationship":{"officer":true,"officer_title":"Executive Vice President & CFO"}}],"security":"Restricted Stock Units","published_at":"2026-04-03T00:38:46.000Z","date":"2026-03-31","kind":"exercise","planned":false,"acquired":false,"shares":4550,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each restricted stock unit represents a contingent right to receive one share of common stock of the Company."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The restricted stock units reported as disposed herein were settled for shares of common stock of the Company."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F9","text":"On March 31, 2025, the reporting person was granted 13,200 restricted stock units, of which 4,400 vested on the first anniversary of the grant date. Of the remaining unvested restricted stock units, 4,400 will vest on the second anniversary of the grant date and 4,400 will vest on the third anniversary of the grant date. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F10","text":"Settlement of dividend equivalent rights in connection with the vesting of underlying restricted stock units that were granted on March 31, 2025. The dividend equivalent rights accrued when and as the Company declared quarterly dividends and vested proportionately with the restricted stock unit to which they related. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F9","text":"On March 31, 2025, the reporting person was granted 13,200 restricted stock units, of which 4,400 vested on the first anniversary of the grant date. Of the remaining unvested restricted stock units, 4,400 will vest on the second anniversary of the grant date and 4,400 will vest on the third anniversary of the grant date. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F10","text":"Settlement of dividend equivalent rights in connection with the vesting of underlying restricted stock units that were granted on March 31, 2025. The dividend equivalent rights accrued when and as the Company declared quarterly dividends and vested proportionately with the restricted stock unit to which they related. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates."}],"balance_after":9101.098,"derivative":{"underlying":"Common Stock","underlying_shares":4550},"source":{"system":"sec-edgar","filing":"0000899140-26-000354","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1481582/000089914026000354/form4.xml","form_type":"4"}},{"id":819451,"issuer":{"id":4782,"kind":"organization","name":"Ryerson Holding Corp","symbol":"RYZ"},"owners":[{"id":35970,"kind":"person","name":"Claussen James J","position":1,"cik":"0001841035","reported_name":"Claussen James J","relationship":{"officer":true,"officer_title":"Executive Vice President & CFO"}}],"security":"Restricted Stock Units","published_at":"2026-04-03T00:38:46.000Z","date":"2026-03-31","kind":"exercise","planned":false,"acquired":false,"shares":4125,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each restricted stock unit represents a contingent right to receive one share of common stock of the Company."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The restricted stock units reported as disposed herein were settled for shares of common stock of the Company."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F7","text":"On March 31, 2024, the reporting person was granted 11,550 restricted stock units, of which 3,850 vested on the first anniversary of the grant date and 3,850 vested on the second anniversary of the grant date. All 3,850 of the remaining unvested restricted stock units will vest on the third anniversary of the grant date. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F8","text":"Settlement of dividend equivalent rights in connection with the vesting of underlying restricted stock units that were granted on March 31, 2024. The dividend equivalent rights accrued when and as the Company declared quarterly dividends and vested proportionately with the restricted stock unit to which they related. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F7","text":"On March 31, 2024, the reporting person was granted 11,550 restricted stock units, of which 3,850 vested on the first anniversary of the grant date and 3,850 vested on the second anniversary of the grant date. All 3,850 of the remaining unvested restricted stock units will vest on the third anniversary of the grant date. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F8","text":"Settlement of dividend equivalent rights in connection with the vesting of underlying restricted stock units that were granted on March 31, 2024. The dividend equivalent rights accrued when and as the Company declared quarterly dividends and vested proportionately with the restricted stock unit to which they related. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates."}],"balance_after":4125.881,"derivative":{"underlying":"Common Stock","underlying_shares":4125},"source":{"system":"sec-edgar","filing":"0000899140-26-000354","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1481582/000089914026000354/form4.xml","form_type":"4"}},{"id":819450,"issuer":{"id":4782,"kind":"organization","name":"Ryerson Holding Corp","symbol":"RYZ"},"owners":[{"id":35970,"kind":"person","name":"Claussen James J","position":1,"cik":"0001841035","reported_name":"Claussen James J","relationship":{"officer":true,"officer_title":"Executive Vice President & CFO"}}],"security":"Restricted Stock Units","published_at":"2026-04-03T00:38:46.000Z","date":"2026-03-31","kind":"exercise","planned":false,"acquired":false,"shares":4219,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each restricted stock unit represents a contingent right to receive one share of common stock of the Company."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The restricted stock units reported as disposed herein were settled for shares of common stock of the Company."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"On March 31, 2023, the reporting person was granted 11,550 restricted stock units, of which 3,850 vested on the first anniversary of the grant date, 3,850 vested on the second anniversary of the grant date and 3,850 vested on the third anniversary of the grant date. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"Settlement of dividend equivalent rights in connection with the vesting of underlying restricted stock units that were granted on March 31, 2023. The dividend equivalent rights accrued when and as the Company declared quarterly dividends and vested proportionately with the restricted stock unit to which they related. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"On March 31, 2023, the reporting person was granted 11,550 restricted stock units, of which 3,850 vested on the first anniversary of the grant date, 3,850 vested on the second anniversary of the grant date and 3,850 vested on the third anniversary of the grant date. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F6","text":"Settlement of dividend equivalent rights in connection with the vesting of underlying restricted stock units that were granted on March 31, 2023. The dividend equivalent rights accrued when and as the Company declared quarterly dividends and vested proportionately with the restricted stock unit to which they related. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":4219},"source":{"system":"sec-edgar","filing":"0000899140-26-000354","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1481582/000089914026000354/form4.xml","form_type":"4"}},{"id":819449,"issuer":{"id":4782,"kind":"organization","name":"Ryerson Holding Corp","symbol":"RYZ"},"owners":[{"id":35970,"kind":"person","name":"Claussen James J","position":1,"cik":"0001841035","reported_name":"Claussen James J","relationship":{"officer":true,"officer_title":"Executive Vice President & CFO"}}],"security":"Common Stock (par value $0.01 per share)","published_at":"2026-04-03T00:38:46.000Z","date":"2026-03-31","kind":"tax_withholding","planned":false,"acquired":false,"shares":10415,"price":22.48,"value":234129.2,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F12","text":"Represents shares that have been withheld by the Company to satisfy its income tax and withholding remittance obligations in connection with the net settlement of restricted stock units."}],"balance_after":88488.3365,"source":{"system":"sec-edgar","filing":"0000899140-26-000354","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1481582/000089914026000354/form4.xml","form_type":"4"}},{"id":819448,"issuer":{"id":4782,"kind":"organization","name":"Ryerson Holding Corp","symbol":"RYZ"},"owners":[{"id":35970,"kind":"person","name":"Claussen James J","position":1,"cik":"0001841035","reported_name":"Claussen James J","relationship":{"officer":true,"officer_title":"Executive Vice President & CFO"}}],"security":"Common Stock (par value $0.01 per share)","published_at":"2026-04-03T00:38:46.000Z","date":"2026-03-31","kind":"exercise","planned":false,"acquired":true,"shares":11725,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Represents shares received or that will be received in respect of performance-based restricted stock units granted on March 31, 2023. Each performance-based restricted stock unit became vested on March 31, 2026, which was the later of (i) the third anniversary of the grant date and (ii) the date the compensation committee certified the achievement of the applicable performance objectives in accordance with the underlying award agreement. The compensation committee certified the achievement of the applicable performance objectives on March 31, 2026. 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Dividend equivalent rights are subject to the same terms and conditions, including vesting, as the underlying restricted stock units."}],"balance_after":78503.3365,"source":{"system":"sec-edgar","filing":"0000899140-26-000354","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1481582/000089914026000354/form4.xml","form_type":"4"}},{"id":819586,"issuer":{"id":4782,"kind":"organization","name":"Ryerson Holding Corp","symbol":"RYZ"},"owners":[{"id":35983,"kind":"person","name":"Greiff Andrew S","position":1,"cik":"0001682850","reported_name":"Greiff Andrew S","relationship":{"officer":true,"officer_title":"EVP"}}],"security":"Restricted Stock Units","published_at":"2026-04-03T00:37:07.000Z","date":"2026-03-31","kind":"grant","planned":false,"acquired":true,"shares":11743.71,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of common stock of the Company."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"On March 31, 2026, the reporting person was granted 11,743.71 restricted stock units, of which 3,914.57 will vest on the first anniversary of the grant date, 3,914.57 will vest on the second anniversary of the grant date and 3,914.57 will vest on the third anniversary of the grant date. Vested shares will be delivered to the reporting person not later than 60 days following such vesting dates."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"On March 31, 2026, the reporting person was granted 11,743.71 restricted stock units, of which 3,914.57 will vest on the first anniversary of the grant date, 3,914.57 will vest on the second anniversary of the grant date and 3,914.57 will vest on the third anniversary of the grant date. 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These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2026 and March 31, 2027."}],"balance_after":4125.959,"derivative":{"underlying":"Common Stock","underlying_shares":38.058},"source":{"system":"sec-edgar","filing":"0000899140-26-000343","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1799091/000089914026000343/form4.xml","form_type":"4"}},{"id":830841,"issuer":{"id":4782,"kind":"organization","name":"Ryerson Holding Corp","symbol":"RYZ"},"owners":[{"id":27781,"kind":"person","name":"Kannan Molly D","position":1,"cik":"0001799091","reported_name":"Kannan Molly D","relationship":{"officer":true,"officer_title":"CAO & Corporate Controller"}}],"security":"Restricted Stock Units","published_at":"2026-03-23T21:15:42.000Z","date":"2026-03-19","kind":"grant","planned":false,"acquired":true,"shares":19.457,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of common stock of Ryerson Holding Corporation (the \"Company\")."},{"field":"shares","element":"transactionShares","label":"F2","text":"Represents dividend equivalent rights that accrued on the underlying award of restricted stock units. 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These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2026."}],"balance_after":2109.309,"derivative":{"underlying":"Common Stock","underlying_shares":19.457},"source":{"system":"sec-edgar","filing":"0000899140-26-000343","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1799091/000089914026000343/form4.xml","form_type":"4"}},{"id":830788,"issuer":{"id":4782,"kind":"organization","name":"Ryerson Holding Corp","symbol":"RYZ"},"owners":[{"id":35967,"kind":"person","name":"Lehner Edward J.","position":1,"cik":"0001614103","reported_name":"Lehner Edward J.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CEO"}}],"security":"Restricted Stock Units","published_at":"2026-03-23T21:15:18.000Z","date":"2026-03-19","kind":"grant","planned":false,"acquired":true,"shares":346.273,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of common stock of Ryerson Holding Corporation (the \"Company\")."},{"field":"shares","element":"transactionShares","label":"F2","text":"Represents dividend equivalent rights that accrued on the underlying award of restricted stock units. 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Dividend equivalent rights accrue when and as dividends are paid on the common shares underlying the applicable restricted share units and vest proportionately with and are subject to settlement and expiration upon the same terms as the restricted stock units to which they relate."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2024 and outstanding as of March 19, 2026. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2026 and March 31, 2027."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2024 and outstanding as of March 19, 2026. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2026 and March 31, 2027."}],"balance_after":25931.179,"derivative":{"underlying":"Common Stock","underlying_shares":239.189},"source":{"system":"sec-edgar","filing":"0000899140-26-000342","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1481582/000089914026000342/form4.xml","form_type":"4"}},{"id":830786,"issuer":{"id":4782,"kind":"organization","name":"Ryerson Holding Corp","symbol":"RYZ"},"owners":[{"id":35967,"kind":"person","name":"Lehner Edward J.","position":1,"cik":"0001614103","reported_name":"Lehner Edward J.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CEO"}}],"security":"Restricted Stock Units","published_at":"2026-03-23T21:15:18.000Z","date":"2026-03-19","kind":"grant","planned":false,"acquired":true,"shares":122.283,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of common stock of Ryerson Holding Corporation (the \"Company\")."},{"field":"shares","element":"transactionShares","label":"F2","text":"Represents dividend equivalent rights that accrued on the underlying award of restricted stock units. Dividend equivalent rights accrue when and as dividends are paid on the common shares underlying the applicable restricted share units and vest proportionately with and are subject to settlement and expiration upon the same terms as the restricted stock units to which they relate."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2023 and outstanding as of March 19, 2026. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2026."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2023 and outstanding as of March 19, 2026. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2026."}],"balance_after":13257.021,"derivative":{"underlying":"Common Stock","underlying_shares":122.283},"source":{"system":"sec-edgar","filing":"0000899140-26-000342","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1481582/000089914026000342/form4.xml","form_type":"4"}},{"id":830801,"issuer":{"id":4782,"kind":"organization","name":"Ryerson Holding Corp","symbol":"RYZ"},"owners":[{"id":35976,"kind":"person","name":"Silver Mark S.","position":1,"cik":"0001627959","reported_name":"Silver Mark S.","relationship":{"officer":true,"officer_title":"EVP, Chief Legal/Risk Officer"}}],"security":"Restricted Stock Units","published_at":"2026-03-23T21:14:24.000Z","date":"2026-03-19","kind":"grant","planned":false,"acquired":true,"shares":94.438,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of common stock of Ryerson Holding Corporation (the \"Company\")."},{"field":"shares","element":"transactionShares","label":"F2","text":"Represents dividend equivalent rights that accrued on the underlying award of restricted stock units. Dividend equivalent rights accrue when and as dividends are paid on the common shares underlying the applicable restricted share units and vest proportionately with and are subject to settlement and expiration upon the same terms as the restricted stock units to which they relate."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2025 and outstanding as of March 19, 2026. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2026, March 31, 2027 and March 31, 2028."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"The dividend equivalent rights accrued on restricted stock units that were granted on March 31, 2025 and outstanding as of March 19, 2026. These unvested restricted stock units, and the dividend equivalent rights related to such unvested restricted stock units, will vest on March 31, 2026, March 31, 2027 and March 31, 2028."}],"balance_after":10238.324,"derivative":{"underlying":"Common Stock","underlying_shares":94.438},"source":{"system":"sec-edgar","filing":"0000899140-26-000341","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1627959/000089914026000341/form4.xml","form_type":"4"}}],"next_cursor":"2026-03-23T21:14:24.000000Z,830801"}