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DAWSON GEOPHYSICAL CO — SC 13D/A Filings

7 SC 13D/A filings on record

This page lists all SC 13D/A filings submitted to the SEC by DAWSON GEOPHYSICAL CO (DWSN), sorted by most recent first. Each row links to the full filing on EdgarLookup. DAWSON GEOPHYSICAL CO has filed 7 SC 13D/A documents with the SEC since 2004. To view all SEC filings by DAWSON GEOPHYSICAL CO, see the full filings list.

Overview All Filings Financials Insiders
All 10-K 10-K/A 10-Q 10-QT 10KSB 10KSB/A 10QSB 10QSB/A 25 3 4 4/A 424B3 424B4 425 5 5/A 8-A12B 8-A12G 8-K 8-K/A ARS CERTAMX CERTNAS CORRESP DEF 14A DEFA14A DEFM14A DEFR14A DEFS14A EFFECT NT 10-K NT 10-Q POS EX PRE 14A PREM14A PRER14A PRES14A S-4 S-4/A S-8 S-8 POS SB-2 SB-2/A SC 13D SC 13D/A SC 13G SC 13G/A SC 14D9 SC 14D9/A SC TO-T SC TO-T/A SCHEDULE 13D/A UPLOAD
Form Description Accession Number Filed Period
SC 13D/A AMENDMENT TO FORM SC 13D 0001839882-23-028790 Oct 30, 2023
SC 13D/A AMENDMENT TO FORM SC 13D 0001387131-23-008047 Jun 29, 2023
SC 13D/A SC 13D/A 0001193125-22-021720 Jan 28, 2022
SC 13D/A SC 13D/A 0001193125-22-010065 Jan 14, 2022
SC 13D/A SC 13D/A 0001193125-21-306701 Oct 25, 2021
SC 13D/A WEDGE ENERGY SERVICES, L.L.C. 0000950129-04-000666 Feb 17, 2004
SC 13D/A W.E.S., L.L.C. FOR TGC INDUSTRIES, INC. 0000950129-01-000262 Jan 19, 2001