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DAWSON GEOPHYSICAL CO — 4/A Filings

20 4/A filings on record

This page lists all 4/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 20 4/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
4/A FORM 4/A SUBMISSION 0000899243-23-016727 Jun 30, 2023 Jun 14, 2023
4/A FORM 4/A SUBMISSION 0000899243-23-015834 Jun 16, 2023 Jun 12, 2023
4/A 4/A 0001104659-19-002420 Jan 18, 2019 Aug 13, 2018
4/A 4/A 0001104659-18-044131 Jul 6, 2018 Jun 29, 2018
4/A 4/A 0001104659-18-006513 Feb 5, 2018 May 30, 2017
4/A 4/A 0001104659-17-033470 May 17, 2017 May 12, 2017
4/A 4/A 0001104659-17-021330 Apr 4, 2017 Dec 1, 2015
4/A 4/A 0001104659-17-016346 Mar 14, 2017 Feb 11, 2015
4/A 4/A 0001104659-16-101416 Mar 1, 2016 Dec 1, 2015
4/A 4/A 0001104659-15-082790 Dec 3, 2015 Dec 1, 2015
4/A 4/A 0001104659-15-082787 Dec 3, 2015 Dec 1, 2015
4/A 4/A 0001104659-15-082784 Dec 3, 2015 Dec 1, 2015
4/A 4/A 0001104659-15-082783 Dec 3, 2015 Dec 1, 2015
4/A FORM 4/A - 0001179110-10-016221 Nov 17, 2010 Nov 15, 2010
4/A FORM 4/A - 0001179110-08-018560 Oct 27, 2008 Oct 24, 2008
4/A FORM 4/A - 0001179110-08-018553 Oct 27, 2008 Oct 24, 2008
4/A FORM 4/A - 0001179110-05-011103 May 26, 2005 Nov 18, 2004
4/A FORM 4/A - 0001179110-05-011098 May 26, 2005 Dec 10, 2004
4/A PRIMARY DOCUMENT 0000929966-04-000011 Feb 25, 2004 Feb 23, 2004
4/A PRIMARY DOCUMENT 0000929966-04-000010 Feb 25, 2004 Feb 23, 2004