{"filing":{"accession_number":"0001628280-26-037338","cik":"0001955520","ticker":"KNF","company_name":"Knife River Corp","form":"8-K","filing_date":"2026-05-21","report_date":null,"primary_document":"knf-20260520.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/1955520/000162828026037338/knf-20260520.htm"},"events":[{"id":9576,"run_id":8400,"accession_number":"0001628280-26-037338","anchor_item_number":"5.02","event_type":"exec_appointment","event_domain":"governance","is_material":true,"confidence":0.92,"summary":"Peggy S. Rebstock was appointed by the Board on May 20, 2026, to serve as Vice President, Chief Accounting Officer and Controller, effective May 21, 2026, with a base salary of $320,000, 50% target cash incentive, and equity awards.","company_name":"Knife River Corp","ticker":"KNF","filing_date":"2026-05-21","form":"8-K","submitted_at":null,"items":[{"id":1240,"accession_number":"0001628280-26-037338","item_number":"5.02","item_title":"Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.","event_type":"exec_appointment","event_domain":"governance","is_material":true,"confidence":0.92,"reasoning":"Peggy S. Rebstock was appointed by the Board on May 20, 2026, to serve as Vice President, Chief Accounting Officer and Controller, effective May 21, 2026. This is a material executive appointment involving a promotion to a principal accounting officer role with specified compensation (base salary of $320,000, 50% target cash incentive, and equity awards). The appointment of a Chief Accounting Officer is material to investors as it affects the registrant's financial reporting and internal controls oversight.","classifier_version":"claude-haiku-4-5-20251001+prompt-9e0ffca5","taxonomy_version":"v1","classified_at":"2026-05-22T03:05:24.004143+00:00","company_name":"","ticker":null,"filing_date":""}]},{"id":9577,"run_id":8400,"accession_number":"0001628280-26-037338","anchor_item_number":"5.07","event_type":"shareholder_vote_results","event_domain":"governance","is_material":true,"confidence":0.98,"summary":"Knife River Corp held its annual stockholder meeting on May 20, 2026, with shareholders voting on three proposals: election of two Class III directors (Karen B. Fagg and Brian R. Gray), advisory approval of named executive officer compensation, and ratification of Deloitte \u0026 Touche LLP as independent auditor. All three proposals passed.","company_name":"Knife River Corp","ticker":"KNF","filing_date":"2026-05-21","form":"8-K","submitted_at":null,"items":[{"id":1241,"accession_number":"0001628280-26-037338","item_number":"5.07","item_title":"Submission of Matters to a Vote of Security Holders.","event_type":"shareholder_vote_results","event_domain":"governance","is_material":true,"confidence":0.98,"reasoning":"This Item 5.07 discloses the results of Knife River Corp's annual stockholder meeting held on May 20, 2026, covering three proposals: election of two Class III directors (Karen B. Fagg and Brian R. Gray), advisory approval of named executive officer compensation, and ratification of Deloitte \u0026 Touche LLP as independent auditor. All three proposals passed with specified vote tallies, which is the core disclosure required under Item 5.07.","classifier_version":"claude-haiku-4-5-20251001+prompt-9e0ffca5","taxonomy_version":"v1","classified_at":"2026-05-22T03:05:24.004143+00:00","company_name":"","ticker":null,"filing_date":""}]}],"classifications":[{"id":1240,"accession_number":"0001628280-26-037338","item_number":"5.02","item_title":"Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.","event_type":"exec_appointment","event_domain":"governance","is_material":true,"confidence":0.92,"reasoning":"Peggy S. Rebstock was appointed by the Board on May 20, 2026, to serve as Vice President, Chief Accounting Officer and Controller, effective May 21, 2026. This is a material executive appointment involving a promotion to a principal accounting officer role with specified compensation (base salary of $320,000, 50% target cash incentive, and equity awards). The appointment of a Chief Accounting Officer is material to investors as it affects the registrant's financial reporting and internal controls oversight.","classifier_version":"claude-haiku-4-5-20251001+prompt-9e0ffca5","taxonomy_version":"v1","classified_at":"2026-05-22T03:05:24.004143+00:00","company_name":"Knife River Corp","ticker":"KNF","filing_date":"2026-05-21"},{"id":1241,"accession_number":"0001628280-26-037338","item_number":"5.07","item_title":"Submission of Matters to a Vote of Security Holders.","event_type":"shareholder_vote_results","event_domain":"governance","is_material":true,"confidence":0.98,"reasoning":"This Item 5.07 discloses the results of Knife River Corp's annual stockholder meeting held on May 20, 2026, covering three proposals: election of two Class III directors (Karen B. Fagg and Brian R. Gray), advisory approval of named executive officer compensation, and ratification of Deloitte \u0026 Touche LLP as independent auditor. All three proposals passed with specified vote tallies, which is the core disclosure required under Item 5.07.","classifier_version":"claude-haiku-4-5-20251001+prompt-9e0ffca5","taxonomy_version":"v1","classified_at":"2026-05-22T03:05:24.004143+00:00","company_name":"Knife River Corp","ticker":"KNF","filing_date":"2026-05-21"}]}