$WSTRF SEC Filings

Filing Filed On
OWNERSHIP DOCUMENT 08 Jan 2020
OWNERSHIP DOCUMENT 08 Jan 2020
4 04 Oct 2018
4 03 Oct 2018
4 01 Oct 2018
PRIMARY DOCUMENT 20 Jul 2018
PRIMARY DOCUMENT 09 Jul 2018
PRIMARY DOCUMENT 05 Jul 2018
PRIMARY DOCUMENT 27 Jun 2018
PRIMARY DOCUMENT 25 Jun 2018
PRIMARY DOCUMENT 18 Jun 2018
PRIMARY DOCUMENT 07 Jun 2018
PRIMARY DOCUMENT 04 Jun 2018
PRIMARY DOCUMENT 23 May 2018
PRIMARY DOCUMENT 26 Feb 2018
PRIMARY DOCUMENT 16 Feb 2018
PRIMARY DOCUMENT 12 Feb 2018
PRIMARY DOCUMENT 07 Feb 2018
PRIMARY DOCUMENT 29 Jan 2018
PRIMARY DOCUMENT 26 Jan 2018