{"transactions":[{"id":4631427,"issuer":{"id":5137,"kind":"organization","name":"Metallus Inc.","symbol":"MTUS"},"owners":[{"id":63876,"kind":"person","name":"Williams Michael S","position":1,"cik":"0001554176","reported_name":"Williams Michael S","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Shares","published_at":"2026-10-06T00:00:08.000Z","date":"2026-10-05","kind":"sale","planned":true,"acquired":false,"shares":12430,"price":20.2933,"value":252245.719,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Price reported is the weighted average sale price for shares sold by the reporting owner on October 5, 2026. Shares were sold at a variety of prices ranging from $20.2050 to $20.4800."}],"balance_after":709858,"source":{"system":"sec-edgar","filing":"0001193125-26-414692","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1598428/000119312526414692/ownership.xml","form_type":"4"}},{"id":4628544,"issuer":{"id":5137,"kind":"organization","name":"Metallus Inc.","symbol":"MTUS"},"owners":[{"id":63876,"kind":"person","name":"Williams Michael S","position":1,"cik":"0001554176","reported_name":"Williams Michael S","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Shares","published_at":"2026-10-03T00:00:03.000Z","date":"2026-10-02","kind":"sale","planned":true,"acquired":false,"shares":12570,"price":20.0066,"value":251482.962,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Price reported is the weighted average sale price for shares sold by the reporting owner on October 2, 2026. Shares were sold at a variety of prices ranging from $20.0000 to $20.0100."}],"balance_after":722288,"source":{"system":"sec-edgar","filing":"0001193125-26-412772","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1598428/000119312526412772/ownership.xml","form_type":"4"}},{"id":873556,"issuer":{"id":5137,"kind":"organization","name":"Metallus Inc.","symbol":"MTUS"},"owners":[{"id":63876,"kind":"person","name":"Williams Michael S","position":1,"cik":"0001554176","reported_name":"Williams Michael S","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Shares","published_at":"2026-03-02T21:00:02.000Z","date":"2026-03-02","kind":"grant","planned":false,"acquired":true,"shares":78100,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The reported transaction is an award of restricted stock units which will vest in full on March 2, 2029, subject to the terms of the grant agreement."}],"balance_after":734858,"source":{"system":"sec-edgar","filing":"0001193125-26-086283","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1554176/000119312526086283/ownership.xml","form_type":"4"}},{"id":873555,"issuer":{"id":5137,"kind":"organization","name":"Metallus Inc.","symbol":"MTUS"},"owners":[{"id":63876,"kind":"person","name":"Williams Michael S","position":1,"cik":"0001554176","reported_name":"Williams Michael S","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Shares","published_at":"2026-03-02T21:00:02.000Z","date":"2026-03-01","kind":"tax_withholding","planned":false,"acquired":false,"shares":29124,"price":17,"value":495108.0,"ownership":{"direct":true},"balance_after":656758,"source":{"system":"sec-edgar","filing":"0001193125-26-086283","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1554176/000119312526086283/ownership.xml","form_type":"4"}},{"id":907201,"issuer":{"id":5137,"kind":"organization","name":"Metallus Inc.","symbol":"MTUS"},"owners":[{"id":63876,"kind":"person","name":"Williams Michael S","position":1,"cik":"0001554176","reported_name":"Williams Michael S","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Shares","published_at":"2026-02-12T20:00:03.000Z","date":"2026-02-11","kind":"tax_withholding","planned":false,"acquired":false,"shares":18436,"price":21.51,"value":396558.36,"ownership":{"direct":true},"balance_after":685882,"source":{"system":"sec-edgar","filing":"0001193125-26-049351","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1554176/000119312526049351/ownership.xml","form_type":"4"}},{"id":907200,"issuer":{"id":5137,"kind":"organization","name":"Metallus Inc.","symbol":"MTUS"},"owners":[{"id":63876,"kind":"person","name":"Williams Michael S","position":1,"cik":"0001554176","reported_name":"Williams Michael S","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Shares","published_at":"2026-02-12T20:00:03.000Z","date":"2026-02-11","kind":"grant","planned":false,"acquired":true,"shares":40278,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":704318,"source":{"system":"sec-edgar","filing":"0001193125-26-049351","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1554176/000119312526049351/ownership.xml","form_type":"4"}},{"id":919089,"issuer":{"id":5137,"kind":"organization","name":"Metallus Inc.","symbol":"MTUS"},"owners":[{"id":63876,"kind":"person","name":"Williams Michael S","position":1,"cik":"0001554176","reported_name":"Williams Michael S","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Shares","published_at":"2026-02-04T19:00:04.000Z","date":"2026-02-04","kind":"sale","planned":true,"acquired":false,"shares":13713,"price":21.28,"value":291812.64,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Price reported is the weighted average sale price for shares sold by the reporting owner on February 4, 2026. Shares were sold at a variety of prices ranging from $21.00 to $21.54."}],"balance_after":664040,"source":{"system":"sec-edgar","filing":"0001193125-26-037979","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1554176/000119312526037979/ownership.xml","form_type":"4"}},{"id":919088,"issuer":{"id":5137,"kind":"organization","name":"Metallus Inc.","symbol":"MTUS"},"owners":[{"id":63876,"kind":"person","name":"Williams Michael S","position":1,"cik":"0001554176","reported_name":"Williams Michael S","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Shares","published_at":"2026-02-04T19:00:04.000Z","date":"2026-02-03","kind":"sale","planned":true,"acquired":false,"shares":19017,"price":21.03,"value":399927.51,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Price reported is the weighted average sale price for shares sold by the reporting owner on February 3, 2026. Shares were sold at a variety of prices ranging from $21.00 to $21.17."}],"balance_after":677753,"source":{"system":"sec-edgar","filing":"0001193125-26-037979","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1554176/000119312526037979/ownership.xml","form_type":"4"}},{"id":936813,"issuer":{"id":5137,"kind":"organization","name":"Metallus Inc.","symbol":"MTUS"},"owners":[{"id":63876,"kind":"person","name":"Williams Michael S","position":1,"cik":"0001554176","reported_name":"Williams Michael S","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Shares","published_at":"2026-01-16T18:00:03.000Z","date":"2026-01-15","kind":"sale","planned":true,"acquired":false,"shares":603,"price":21,"value":12663.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Price reported is the weighted average sale price for shares sold by the reporting owner on January 15, 2026. Shares were sold at prices ranging from $21.00 to $21.01."}],"balance_after":696770,"source":{"system":"sec-edgar","filing":"0001193125-26-015544","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1554176/000119312526015544/ownership.xml","form_type":"4"}},{"id":941850,"issuer":{"id":5137,"kind":"organization","name":"Metallus Inc.","symbol":"MTUS"},"owners":[{"id":63876,"kind":"person","name":"Williams Michael S","position":1,"cik":"0001554176","reported_name":"Williams Michael S","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Shares","published_at":"2026-01-09T18:00:13.000Z","date":"2026-01-09","kind":"sale","planned":true,"acquired":false,"shares":4835,"price":19.11,"value":92396.85,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Price reported is the weighted average sale price for shares sold by the reporting owner on January 9, 2026. Shares were sold at a variety of prices ranging from $19.00 to $19.39."}],"balance_after":697373,"source":{"system":"sec-edgar","filing":"0001193125-26-009191","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1554176/000119312526009191/ownership.xml","form_type":"4"}},{"id":941849,"issuer":{"id":5137,"kind":"organization","name":"Metallus Inc.","symbol":"MTUS"},"owners":[{"id":63876,"kind":"person","name":"Williams Michael S","position":1,"cik":"0001554176","reported_name":"Williams Michael S","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Shares","published_at":"2026-01-09T18:00:13.000Z","date":"2026-01-08","kind":"sale","planned":true,"acquired":false,"shares":14462,"price":19.1,"value":276224.2,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Price reported is the weighted average sale price for shares sold by the reporting owner on January 8, 2026. Shares were sold at a variety of prices ranging from $19.00 to $19.27."}],"balance_after":702208,"source":{"system":"sec-edgar","filing":"0001193125-26-009191","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1554176/000119312526009191/ownership.xml","form_type":"4"}},{"id":962857,"issuer":{"id":5137,"kind":"organization","name":"Metallus Inc.","symbol":"MTUS"},"owners":[{"id":63876,"kind":"person","name":"Williams Michael S","position":1,"cik":"0001554176","reported_name":"Williams Michael S","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Shares","published_at":"2025-12-18T20:00:02.000Z","date":"2025-12-18","kind":"sale","planned":true,"acquired":false,"shares":5609,"price":19.07,"value":106963.63,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Price reported is the weighted average sale price for shares sold by the reporting owner on December 18, 2025. Shares were sold at a variety of prices ranging from $19.00 to $19.16."}],"balance_after":716670,"source":{"system":"sec-edgar","filing":"0001193125-25-325377","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1554176/000119312525325377/ownership.xml","form_type":"4"}},{"id":962856,"issuer":{"id":5137,"kind":"organization","name":"Metallus Inc.","symbol":"MTUS"},"owners":[{"id":63876,"kind":"person","name":"Williams Michael S","position":1,"cik":"0001554176","reported_name":"Williams Michael S","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Shares","published_at":"2025-12-18T20:00:02.000Z","date":"2025-12-17","kind":"sale","planned":true,"acquired":false,"shares":8428,"price":19.04,"value":160469.12,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Price reported is the weighted average sale price for shares sold by the reporting owner on December 17, 2025. Shares were sold at a variety of prices ranging from $19.00 to $19.1257."}],"balance_after":722279,"source":{"system":"sec-edgar","filing":"0001193125-25-325377","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1554176/000119312525325377/ownership.xml","form_type":"4"}},{"id":1214532,"issuer":{"id":5137,"kind":"organization","name":"Metallus Inc.","symbol":"MTUS"},"owners":[{"id":63876,"kind":"person","name":"Williams Michael S","position":1,"cik":"0001554176","reported_name":"Williams Michael S","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Shares","published_at":"2025-03-10T18:00:19.000Z","date":"2025-03-07","kind":"grant","planned":false,"acquired":true,"shares":95900,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The reported transaction is an award of restricted stock units which will vest in full on March 7, 2028, subject to the terms of the grant agreement."}],"balance_after":730707,"source":{"system":"sec-edgar","filing":"0000950170-25-036581","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1554176/000095017025036581/ownership.xml","form_type":"4"}},{"id":1235279,"issuer":{"id":5137,"kind":"organization","name":"Metallus Inc.","symbol":"MTUS"},"owners":[{"id":63876,"kind":"person","name":"Williams Michael S","position":1,"cik":"0001554176","reported_name":"Williams Michael S","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Shares","published_at":"2025-03-03T18:00:03.000Z","date":"2025-03-01","kind":"tax_withholding","planned":false,"acquired":false,"shares":33514,"price":14.44,"value":483942.16,"ownership":{"direct":true},"balance_after":634807,"source":{"system":"sec-edgar","filing":"0000950170-25-031099","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1554176/000095017025031099/ownership.xml","form_type":"4"}},{"id":1269319,"issuer":{"id":5137,"kind":"organization","name":"Metallus Inc.","symbol":"MTUS"},"owners":[{"id":63876,"kind":"person","name":"Williams Michael S","position":1,"cik":"0001554176","reported_name":"Williams Michael S","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Shares","published_at":"2025-02-13T17:00:05.000Z","date":"2025-02-11","kind":"tax_withholding","planned":false,"acquired":false,"shares":27024,"price":15.61,"value":421844.64,"ownership":{"direct":true},"balance_after":668321,"source":{"system":"sec-edgar","filing":"0000950170-25-020009","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1554176/000095017025020009/ownership.xml","form_type":"4"}},{"id":1269318,"issuer":{"id":5137,"kind":"organization","name":"Metallus Inc.","symbol":"MTUS"},"owners":[{"id":63876,"kind":"person","name":"Williams Michael S","position":1,"cik":"0001554176","reported_name":"Williams Michael S","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Shares","published_at":"2025-02-13T17:00:05.000Z","date":"2025-02-11","kind":"grant","planned":false,"acquired":true,"shares":59120,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":695345,"source":{"system":"sec-edgar","filing":"0000950170-25-020009","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1554176/000095017025020009/ownership.xml","form_type":"4"}},{"id":1508597,"issuer":{"id":5137,"kind":"organization","name":"Metallus Inc.","symbol":"MTUS"},"owners":[{"id":63876,"kind":"person","name":"Williams Michael S","position":1,"cik":"0001554176","reported_name":"Williams Michael S","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Shares","published_at":"2024-05-20T19:00:14.000Z","date":"2024-05-20","kind":"sale","planned":true,"acquired":false,"shares":28907,"price":24.0922,"value":696433.2254,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Price reported is the weighted average sale price for shares sold by the reporting owner on May 20, 2024. Shares were sold at a variety of prices ranging from $24.00 to $24.26."}],"balance_after":636225,"source":{"system":"sec-edgar","filing":"0000950170-24-062604","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1554176/000095017024062604/ownership.xml","form_type":"4"}},{"id":1513853,"issuer":{"id":5137,"kind":"organization","name":"Metallus Inc.","symbol":"MTUS"},"owners":[{"id":63876,"kind":"person","name":"Williams Michael S","position":1,"cik":"0001554176","reported_name":"Williams Michael S","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Shares","published_at":"2024-05-16T19:00:12.000Z","date":"2024-05-16","kind":"sale","planned":true,"acquired":false,"shares":16355,"price":23,"value":376165.0,"ownership":{"direct":true},"balance_after":665132,"source":{"system":"sec-edgar","filing":"0000950170-24-061277","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1554176/000095017024061277/ownership.xml","form_type":"4"}},{"id":1515629,"issuer":{"id":5137,"kind":"organization","name":"Metallus Inc.","symbol":"MTUS"},"owners":[{"id":63876,"kind":"person","name":"Williams Michael S","position":1,"cik":"0001554176","reported_name":"Williams Michael S","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Shares","published_at":"2024-05-15T19:00:20.000Z","date":"2024-05-15","kind":"sale","planned":true,"acquired":false,"shares":5919,"price":23.0189,"value":136248.8691,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Price reported is the weighted average sale price for shares sold by the reporting owner on May 15, 2024. Shares were sold at a variety of prices ranging from $23.00 to $23.08."}],"balance_after":681487,"source":{"system":"sec-edgar","filing":"0000950170-24-060712","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1554176/000095017024060712/ownership.xml","form_type":"4"}},{"id":1520391,"issuer":{"id":5137,"kind":"organization","name":"Metallus Inc.","symbol":"MTUS"},"owners":[{"id":63876,"kind":"person","name":"Williams Michael S","position":1,"cik":"0001554176","reported_name":"Williams Michael S","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Shares","published_at":"2024-05-10T19:00:29.000Z","date":"2024-05-10","kind":"sale","planned":true,"acquired":false,"shares":6633,"price":23.0653,"value":152992.1349,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Price reported is the weighted average sale price for shares sold by the reporting owner on May 10, 2024. Shares were sold at a variety of prices ranging from $23.00 to $23.45."}],"balance_after":687406,"source":{"system":"sec-edgar","filing":"0000950170-24-058064","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1554176/000095017024058064/ownership.xml","form_type":"4"}},{"id":1559232,"issuer":{"id":5137,"kind":"organization","name":"Metallus Inc.","symbol":"MTUS"},"owners":[{"id":63876,"kind":"person","name":"Williams Michael S","position":1,"cik":"0001554176","reported_name":"Williams Michael S","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Shares","published_at":"2024-03-27T20:00:17.000Z","date":"2024-03-27","kind":"sale","planned":true,"acquired":false,"shares":28907,"price":22.0227,"value":636610.1889,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Price reported is the weighted average sale price for shares sold by the reporting owner on March 27, 2024. Shares were sold at a variety of prices ranging from $22.00 to $22.12."}],"balance_after":694039,"source":{"system":"sec-edgar","filing":"0000950170-24-037489","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1554176/000095017024037489/ownership.xml","form_type":"4"}},{"id":1578269,"issuer":{"id":5137,"kind":"organization","name":"Metallus Inc.","symbol":"MTUS"},"owners":[{"id":63876,"kind":"person","name":"Williams Michael S","position":1,"cik":"0001554176","reported_name":"Williams Michael S","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Shares","published_at":"2024-03-13T21:00:06.000Z","date":"2024-03-13","kind":"sale","planned":true,"acquired":false,"shares":15619,"price":21.1437,"value":330243.4503,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Price reported is the weighted average sale price for shares sold by the reporting owner on March 13, 2024. Shares were sold at a variety of prices ranging from $21.00 to $21.235."}],"balance_after":722946,"source":{"system":"sec-edgar","filing":"0000950170-24-031068","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1554176/000095017024031068/ownership.xml","form_type":"4"}},{"id":1580411,"issuer":{"id":5137,"kind":"organization","name":"Metallus Inc.","symbol":"MTUS"},"owners":[{"id":63876,"kind":"person","name":"Williams Michael S","position":1,"cik":"0001554176","reported_name":"Williams Michael S","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Shares","published_at":"2024-03-12T21:00:06.000Z","date":"2024-03-11","kind":"sale","planned":true,"acquired":false,"shares":1735,"price":21,"value":36435.0,"ownership":{"direct":true},"balance_after":738565,"source":{"system":"sec-edgar","filing":"0000950170-24-030394","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1554176/000095017024030394/ownership.xml","form_type":"4"}},{"id":1594296,"issuer":{"id":5137,"kind":"organization","name":"Metallus Inc.","symbol":"MTUS"},"owners":[{"id":63876,"kind":"person","name":"Williams Michael S","position":1,"cik":"0001554176","reported_name":"Williams Michael S","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Shares","published_at":"2024-03-05T19:00:07.000Z","date":"2024-03-04","kind":"sale","planned":true,"acquired":false,"shares":17354,"price":20.3702,"value":353504.4508,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Price reported is the weighted average sale price for shares sold by the reporting owner on March 4, 2024. Shares were sold at a variety of prices ranging from $20.19 to $20.925."}],"balance_after":740300,"source":{"system":"sec-edgar","filing":"0000950170-24-026526","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1554176/000095017024026526/ownership.xml","form_type":"4"}},{"id":1602429,"issuer":{"id":5137,"kind":"organization","name":"Metallus Inc.","symbol":"MTUS"},"owners":[{"id":63876,"kind":"person","name":"Williams Michael S","position":1,"cik":"0001554176","reported_name":"Williams Michael S","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Shares","published_at":"2024-03-04T18:30:30.000Z","date":"2024-03-01","kind":"grant","planned":false,"acquired":true,"shares":63400,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The reported transaction is an award of restricted stock units which will vest in full on March 1, 2027, subject to the terms of the grant agreement."}],"balance_after":757654,"source":{"system":"sec-edgar","filing":"0000950170-24-025113","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1554176/000095017024025113/ownership.xml","form_type":"4"}},{"id":1654973,"issuer":{"id":5137,"kind":"organization","name":"Metallus Inc.","symbol":"MTUS"},"owners":[{"id":63876,"kind":"person","name":"Williams Michael S","position":1,"cik":"0001554176","reported_name":"Williams Michael S","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Shares","published_at":"2024-02-07T20:00:20.000Z","date":"2024-02-06","kind":"tax_withholding","planned":false,"acquired":false,"shares":288018,"price":20.21,"value":5820843.78,"ownership":{"direct":true},"balance_after":694254,"source":{"system":"sec-edgar","filing":"0000950170-24-012442","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1554176/000095017024012442/ownership.xml","form_type":"4"}},{"id":1654972,"issuer":{"id":5137,"kind":"organization","name":"Metallus Inc.","symbol":"MTUS"},"owners":[{"id":63876,"kind":"person","name":"Williams Michael S","position":1,"cik":"0001554176","reported_name":"Williams Michael S","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Shares","published_at":"2024-02-07T20:00:20.000Z","date":"2024-02-06","kind":"grant","planned":false,"acquired":true,"shares":635100,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":982272,"source":{"system":"sec-edgar","filing":"0000950170-24-012442","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1554176/000095017024012442/ownership.xml","form_type":"4"}},{"id":1667960,"issuer":{"id":5137,"kind":"organization","name":"Metallus Inc.","symbol":"MTUS"},"owners":[{"id":63876,"kind":"person","name":"Williams Michael S","position":1,"cik":"0001554176","reported_name":"Williams Michael S","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Shares","published_at":"2024-01-29T20:00:08.000Z","date":"2024-01-29","kind":"sale","planned":true,"acquired":false,"shares":9500,"price":21.0237,"value":199725.15,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Price reported is the weighted average sale price for shares sold by the reporting owner on January 29, 2024. Shares were sold at a variety of prices ranging from $21.00 to $21.09."}],"balance_after":347172,"source":{"system":"sec-edgar","filing":"0000950170-24-008479","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1554176/000095017024008479/ownership.xml","form_type":"4"}},{"id":1671873,"issuer":{"id":5137,"kind":"organization","name":"Metallus Inc.","symbol":"MTUS"},"owners":[{"id":63876,"kind":"person","name":"Williams Michael S","position":1,"cik":"0001554176","reported_name":"Williams Michael S","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Shares","published_at":"2024-01-24T19:00:12.000Z","date":"2024-01-23","kind":"sale","planned":true,"acquired":false,"shares":1153,"price":21,"value":24213.0,"ownership":{"direct":true},"balance_after":356672,"source":{"system":"sec-edgar","filing":"0000950170-24-007133","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1554176/000095017024007133/ownership.xml","form_type":"4"}},{"id":1679790,"issuer":{"id":5137,"kind":"organization","name":"Metallus Inc.","symbol":"MTUS"},"owners":[{"id":63876,"kind":"person","name":"Williams Michael S","position":1,"cik":"0001554176","reported_name":"Williams Michael S","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Shares","published_at":"2024-01-12T19:00:08.000Z","date":"2024-01-12","kind":"sale","planned":true,"acquired":false,"shares":900,"price":21.0217,"value":18919.53,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Price reported is the weighted average sale price for shares sold by the reporting owner on January 12, 2024. Shares were sold at a variety of prices ranging from $21.01 to $21.04."}],"balance_after":357825,"source":{"system":"sec-edgar","filing":"0000950170-24-004334","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1554176/000095017024004334/ownership.xml","form_type":"4"}},{"id":1679789,"issuer":{"id":5137,"kind":"organization","name":"Metallus Inc.","symbol":"MTUS"},"owners":[{"id":63876,"kind":"person","name":"Williams Michael S","position":1,"cik":"0001554176","reported_name":"Williams Michael S","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Shares","published_at":"2024-01-12T19:00:08.000Z","date":"2024-01-11","kind":"sale","planned":true,"acquired":false,"shares":11553,"price":20.6225,"value":238251.7425,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Price reported is the weighted average sale price for shares sold by the reporting owner on January 11, 2024. Shares were sold at a variety of prices ranging from $20.46 to $20.80."}],"balance_after":358725,"source":{"system":"sec-edgar","filing":"0000950170-24-004334","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1554176/000095017024004334/ownership.xml","form_type":"4"}},{"id":1683767,"issuer":{"id":5137,"kind":"organization","name":"Metallus Inc.","symbol":"MTUS"},"owners":[{"id":63876,"kind":"person","name":"Williams Michael S","position":1,"cik":"0001554176","reported_name":"Williams Michael S","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Shares","published_at":"2024-01-08T17:00:12.000Z","date":"2024-01-05","kind":"tax_withholding","planned":false,"acquired":false,"shares":192322,"price":22.04,"value":4238776.88,"ownership":{"direct":true},"balance_after":370278,"source":{"system":"sec-edgar","filing":"0000950170-24-002981","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1554176/000095017024002981/ownership.xml","form_type":"4"}},{"id":1706709,"issuer":{"id":5137,"kind":"organization","name":"Metallus Inc.","symbol":"MTUS"},"owners":[{"id":63876,"kind":"person","name":"Williams Michael S","position":1,"cik":"0001554176","reported_name":"Williams Michael S","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Performance-Based Restricted Share Units","published_at":"2023-12-18T18:00:07.000Z","date":"2023-12-15","kind":"grant","planned":false,"acquired":true,"shares":80000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Performance-Based Restricted Share Unit (\"PRSU\") represents the right to receive one Issuer Common Share (or a cash payment equivalent thereto), plus cash dividend equivalents as applicable."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"In general, the PRSUs can be earned from 0% to 200% depending on the degree to which the Issuer's Common Shares satisfy up to seven specified average closing price goals (based on 20 consecutive trading days' achievement of a specified 20-trading-day average price) (the \"Average Share Price Goals\") from December 1, 2023 through December 31, 2026. Generally, PRSUs earned based on the Average Share Price Goals (or, if earlier, based upon performance evaluation through a change in control of the Issuer) then generally pay out (subject to a payment cap) in two equal installments in early 2027 and 2028, subject to certain alternative terms for death, disability or termination without cause."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"In general, the PRSUs can be earned from 0% to 200% depending on the degree to which the Issuer's Common Shares satisfy up to seven specified average closing price goals (based on 20 consecutive trading days' achievement of a specified 20-trading-day average price) (the \"Average Share Price Goals\") from December 1, 2023 through December 31, 2026. Generally, PRSUs earned based on the Average Share Price Goals (or, if earlier, based upon performance evaluation through a change in control of the Issuer) then generally pay out (subject to a payment cap) in two equal installments in early 2027 and 2028, subject to certain alternative terms for death, disability or termination without cause."}],"balance_after":80000,"derivative":{"underlying":"Common Shares","underlying_shares":80000},"source":{"system":"sec-edgar","filing":"0000950170-23-071205","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1554176/000095017023071205/ownership.xml","form_type":"4"}},{"id":1971848,"issuer":{"id":5137,"kind":"organization","name":"Metallus Inc.","symbol":"MTUS"},"owners":[{"id":63876,"kind":"person","name":"Williams Michael S","position":1,"cik":"0001554176","reported_name":"Williams Michael S","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Shares","published_at":"2023-03-03T16:02:08.000Z","date":"2023-03-01","kind":"grant","acquired":true,"shares":65300,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The reported transaction is an award of restricted stock units which will vest in full on March 1, 2026, subject to the terms of the grant agreement."}],"balance_after":562600,"source":{"system":"sec-edgar","filing":"0001209191-23-015394","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1554176/000120919123015394/doc4.xml","form_type":"4"}},{"id":2359436,"issuer":{"id":5137,"kind":"organization","name":"Metallus Inc.","symbol":"MTUS"},"owners":[{"id":63876,"kind":"person","name":"Williams Michael S","position":1,"cik":"0001554176","reported_name":"Williams Michael S","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Shares","published_at":"2022-03-02T20:00:32.000Z","date":"2022-03-01","kind":"grant","acquired":true,"shares":73900,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The reported transaction is an award of restricted stock units which will vest in full on March 1, 2025, subject to the terms of the grant agreement."}],"balance_after":497300,"source":{"system":"sec-edgar","filing":"0001209191-22-015084","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1554176/000120919122015084/doc4.xml","form_type":"4"}},{"id":2918970,"issuer":{"id":5137,"kind":"organization","name":"Metallus Inc.","symbol":"MTUS"},"owners":[{"id":63876,"kind":"person","name":"Williams Michael S","position":1,"cik":"0001554176","reported_name":"Williams Michael S","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Shares","published_at":"2021-01-05T17:00:11.000Z","date":"2021-01-05","kind":"grant","acquired":true,"shares":423400,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The reported transaction is an award of restricted stock units which will vest in full on January 5, 2024, subject to the terms of the grant agreement."}],"balance_after":423400,"source":{"system":"sec-edgar","filing":"0001209191-21-001233","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1554176/000120919121001233/doc4.xml","form_type":"4"}}]}