{"schema_version":"secwatch.filing_event.v1","accession":"0001955520-25-000003","form_type":"8-K","ticker":"KNF","cik":"0001955520","company_name":"Knife River Corp","filed_at":"2025-01-17T23:59:59+00:00","discovered_at":"2026-05-14T18:03:05.641313+00:00","generated_at":"2026-05-27T23:30:18.823500+00:00","sec_items":["5.02","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.45,"calibrated_materiality_score":0.45,"confidence":"high","headline":"Knife River VP of Administration Nancy Christenson to retire in April 2025","bullets":["Nancy K. Christenson, VP of Administration, informed company of retirement effective April 2025.","No replacement announced; transition plan not detailed in filing.","Christenson joined Knife River prior to its 2022 spin-off; role oversees administrative functions."],"urls":{"canonical":"https://secwatch.observer/filing/0001955520-25-000003","json":"https://secwatch.observer/filing/0001955520-25-000003.json","markdown":"https://secwatch.observer/filing/0001955520-25-000003.md","text":"https://secwatch.observer/filing/0001955520-25-000003.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1955520/000195552025000003/0001955520-25-000003-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1955520/000195552025000003/knf-20250117.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-27T23:30:18.823500+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[{"claim_id":"92bf98b44e","claim":"Nancy K. Christenson departed as Vice President of Administration at Knife River Corp.","evidence_excerpt":"On January 17, 2025, Nancy K. Christenson, Vice President of Administration of Knife River Corporation (the “Company”), informed the Company of her decision to retire from the Company in April of 2025.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1955520/000195552025000003/0001955520-25-000003-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"retire"},{"label":"Role","value":"Vice President of Administration"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}