secwatch.observer — SEC 8-K summary ====================================== Issuer: DAWSON GEOPHYSICAL CO (DWSN) CIK: 0000799165 Form: 8-K Filed at: 2021-12-17T23:59:59+00:00 Accession: 0001104659-21-151148 Event type: m_and_a Sentiment: neutral Materiality: 0.50 Item codes: 1.01, 9.01 LLM model: deepseek-v4-flash:cloud@v2 Dawson Geophysical amends merger agreement with Wilks Brothers, adds two-step tender offer extension -------------------------------------------------------------------------------- - 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. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/799165/000110465921151148/0001104659-21-151148-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/799165/000110465921151148/tm2135573d1_8k.htm HTML page: https://secwatch.observer/filing/0001104659-21-151148 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer