$PTEN 4 SEC Filings

10-C 10-K 10-K405 10-K/A 10KSB40/A 10-Q 10-Q/A 144 144/A 15-12G 3 3/A 4 424B1 424B2 424B3 424B4 424B5 424B7 425 4/A 8-A12B 8-A12B/A 8-A12G 8-K 8-K/A ARS CORRESP D DEF 14A DEFA14A DEFM14A DEFS14A EFFECT FWP NT 10-K POS AM PRE 14A PRES14A REGDEX S-3 S-3/A S-3ASR S-3MEF S-4 S-4/A S-8 S-8 POS SC 13D SC 13D/A SC 13G SC 13G/A SCHEDULE 13G SCHEDULE 13G/A SD UPLOAD