{"filing":{"accession_number":"0001193125-26-376936","cik":"0001598428","ticker":"MTUS","company_name":"Metallus Inc.","form":"8-K","filing_date":"2026-08-31","report_date":"2026-08-31","primary_document":"mtus-20260831.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/1598428/000119312526376936/mtus-20260831.htm"},"events":[{"id":30662,"run_id":28110,"accession_number":"0001193125-26-376936","anchor_item_number":"5.02","event_type":"exec_appointment","event_domain":"governance","is_material":true,"confidence":0.94,"summary":"The Board appointed Kristopher R. Westbrooks as President and Chief Executive Officer and Board member effective January 1, 2027, succeeding Michael S. Williams who is retiring effective December 31, 2026. The filing discloses detailed compensation arrangements for Westbrooks in his new role.","company_name":"Metallus Inc.","ticker":"MTUS","filing_date":"2026-08-31","form":"8-K","submitted_at":null,"items":[{"id":33326,"accession_number":"0001193125-26-376936","item_number":"5.02","item_title":null,"event_type":"exec_appointment","event_domain":"governance","is_material":true,"confidence":0.92,"reasoning":"The filing discloses the Board's appointment of Kristopher R. Westbrooks as President and Chief Executive Officer and Board member effective January 1, 2027, following Michael S. Williams' announced retirement. While the disclosure includes both a departure (Williams) and an appointment (Westbrooks), the principal action and focus of the Item 5.02 disclosure centers on the succession—the appointment of the new CEO and the detailed compensation arrangements for that role. This is a material executive succession event for a public company.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-08-31T20:49:02.841726+00:00","company_name":"","ticker":null,"filing_date":""},{"id":33327,"accession_number":"0001193125-26-376936","item_number":"7.01","item_title":null,"event_type":"exec_appointment","event_domain":"governance","is_material":true,"confidence":0.95,"reasoning":"The filing announces the appointment of Kristopher Westbrooks as President and Chief Executive Officer and board member effective January 1, 2027. While the press release also discloses the planned retirement of incumbent CEO Michael Williams effective December 31, 2026, the principal disclosed action centers on Westbrooks's appointment to the top executive role. This is a material governance event affecting investor assessment of leadership continuity and strategic direction.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-08-31T20:49:02.841726+00:00","company_name":"","ticker":null,"filing_date":""}]}],"classifications":[{"id":33326,"accession_number":"0001193125-26-376936","item_number":"5.02","item_title":null,"event_type":"exec_appointment","event_domain":"governance","is_material":true,"confidence":0.92,"reasoning":"The filing discloses the Board's appointment of Kristopher R. Westbrooks as President and Chief Executive Officer and Board member effective January 1, 2027, following Michael S. Williams' announced retirement. While the disclosure includes both a departure (Williams) and an appointment (Westbrooks), the principal action and focus of the Item 5.02 disclosure centers on the succession—the appointment of the new CEO and the detailed compensation arrangements for that role. This is a material executive succession event for a public company.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-08-31T20:49:02.841726+00:00","company_name":"Metallus Inc.","ticker":"MTUS","filing_date":"2026-08-31"},{"id":33327,"accession_number":"0001193125-26-376936","item_number":"7.01","item_title":null,"event_type":"exec_appointment","event_domain":"governance","is_material":true,"confidence":0.95,"reasoning":"The filing announces the appointment of Kristopher Westbrooks as President and Chief Executive Officer and board member effective January 1, 2027. While the press release also discloses the planned retirement of incumbent CEO Michael Williams effective December 31, 2026, the principal disclosed action centers on Westbrooks's appointment to the top executive role. This is a material governance event affecting investor assessment of leadership continuity and strategic direction.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-08-31T20:49:02.841726+00:00","company_name":"Metallus Inc.","ticker":"MTUS","filing_date":"2026-08-31"}]}