{"schema_version":"secwatch.filing_event.v1","accession":"0001104659-21-151148","form_type":"8-K","ticker":"DWSN","cik":"0000799165","company_name":"DAWSON GEOPHYSICAL CO","filed_at":"2021-12-17T23:59:59+00:00","discovered_at":"2026-05-14T18:04:15.628049+00:00","generated_at":"2026-06-28T00:19:51.050339+00:00","sec_items":["1.01","9.01"],"event_type":"m_and_a","sentiment":"neutral","materiality_score":0.5,"calibrated_materiality_score":0.5,"confidence":"high","headline":"Dawson Geophysical amends merger agreement with Wilks Brothers, adds two-step tender offer extension","bullets":["Amendment signed Dec 14, 2021 to Agreement and Plan of Merger with Wilks Brothers LLC and WB Acquisitions Inc.","If 65%-80% of shares tendered in initial 20-day period, offer extended by 10 then 14 business days to reach 80% minimum.","All other terms of the original Oct 25, 2021 Merger Agreement remain unchanged.","Extension provisions designed to increase likelihood of satisfying the 80% minimum condition for closing."],"urls":{"canonical":"https://secwatch.observer/filing/0001104659-21-151148","json":"https://secwatch.observer/filing/0001104659-21-151148.json","markdown":"https://secwatch.observer/filing/0001104659-21-151148.md","text":"https://secwatch.observer/filing/0001104659-21-151148.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/799165/000110465921151148/0001104659-21-151148-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/799165/000110465921151148/tm2135573d1_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-28T00:19:51.050339+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"}