{"schema_version":"secwatch.filing_event.v1","accession":"0001437749-25-030533","form_type":"8-K","ticker":"MRTN","cik":"0000799167","company_name":"MARTEN TRANSPORT LTD","filed_at":"2025-10-06T23:59:59+00:00","discovered_at":"2026-05-14T18:02:42.203333+00:00","generated_at":"2026-05-17T04:40:48.684715+00:00","sec_items":["5.02","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.5,"calibrated_materiality_score":0.5,"confidence":"high","headline":"Marten Transport CEO Timothy Kohl retires, receives $620K severance","bullets":["CEO Timothy Kohl retired effective September 30, 2025 as previously announced.","Mr. Kohl will receive $620,000 lump-sum severance plus COBRA premiums for 3 months.","Separation agreement includes 1-year non-solicitation, non-disparagement, and confidentiality covenants.","Performance unit awards forfeited; Mr. Kohl agreed to cooperate for 6 months post-retirement."],"urls":{"canonical":"https://secwatch.observer/filing/0001437749-25-030533","json":"https://secwatch.observer/filing/0001437749-25-030533.json","markdown":"https://secwatch.observer/filing/0001437749-25-030533.md","text":"https://secwatch.observer/filing/0001437749-25-030533.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/799167/000143774925030533/0001437749-25-030533-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/799167/000143774925030533/mrtn20251006_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-17T04:40:48.684715+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":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}