$PTEN SEC Filings

Filing Filed On
FORM 4 SUBMISSION 25 Apr 2019
FORM 4 SUBMISSION 25 Apr 2019
8-K 25 Apr 2019
FORM 4 SUBMISSION 25 Apr 2019
FORM 4 SUBMISSION 25 Apr 2019
FORM 4 SUBMISSION 25 Apr 2019
FORM 4 SUBMISSION 25 Apr 2019
DEF 14A 12 Apr 2019
DEFA14A 12 Apr 2019
FORM 4 SUBMISSION 04 Apr 2019
8-K 26 Mar 2019
10-K 13 Feb 2019
SC 13G/A 12 Feb 2019
8-K 12 Feb 2019
8-K 12 Feb 2019
8-K 07 Feb 2019
SC 13G/A 06 Feb 2019
PTEN-8-K-INVESTOR PRESENTATION JANUARY 2018 09 Jan 2019
FORM 4 SUBMISSION 03 Jan 2019
FORM 4 SUBMISSION 03 Jan 2019