{"schema_version":"secwatch.filing_event.v1","accession":"0001437749-21-023898","form_type":"8-K","ticker":"MRTN","cik":"0000799167","company_name":"MARTEN TRANSPORT LTD","filed_at":"2021-10-19T23:59:59+00:00","discovered_at":"2026-05-14T18:04:15.628343+00:00","generated_at":"2026-06-28T20:08:41.408093+00:00","sec_items":["2.02","9.01"],"event_type":"earnings","sentiment":"positive","materiality_score":0.7,"calibrated_materiality_score":0.7,"confidence":"high","headline":"Marten Transport Q3 net income up 17.9% to $21.3M; record revenue $251.3M","bullets":["Diluted EPS of $0.26 vs $0.22 in Q3 2020, a 18.2% increase.","Operating revenue rose 16.3% to a record $251.3M; ex-fuel surcharges revenue +12.8% to $221.2M.","Operating income improved 16.8% to $28.5M; operating margin (ex-fuel) improved to 87.1% from 87.6%.","Ended Q3 with 181 more drivers than start of quarter; refrigerated container fleet grew to 607.","First nine months net income up 21.6% to $60.7M ($0.73 per diluted share)."],"urls":{"canonical":"https://secwatch.observer/filing/0001437749-21-023898","json":"https://secwatch.observer/filing/0001437749-21-023898.json","markdown":"https://secwatch.observer/filing/0001437749-21-023898.md","text":"https://secwatch.observer/filing/0001437749-21-023898.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/799167/000143774921023898/0001437749-21-023898-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/799167/000143774921023898/mrtn20211017_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-28T20:08:41.408093+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"}