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DAWSON GEOPHYSICAL CO — 424B4 Filings

1 424B4 filing on record

This page lists all 424B4 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 1 424B4 document 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
424B4 424B4 0001104659-05-047569 Oct 6, 2005