$DWSN SEC Filings

Filing Filed On
SC 13D 08 Oct 2021
SC 13D 19 Jan 2021
WEDGE ENERGY SERVICES, LLC FOR TGC INDUSTRIES, INC 22 Dec 1999
SC 13D 13 Oct 1998
SC 13D 13 Oct 1998
SC 13D 13 Oct 1998
SC 13D 27 Aug 1998
SC 13D 21 Aug 1998
SC 13D 17 Aug 1998
SC 13D 25 Jun 1998
SC 13D 23 Jun 1998
SC 13D 09 Sep 1997
SC 13D 09 Sep 1997
SC 13D 15 Aug 1997
SC 13D 14 Aug 1997
SC 13D 13 Aug 1997
SC 13D 14 May 1997
SC 13D 14 May 1997