FILINGS
| PTEN 0000889900 | |||
|---|---|---|---|
| Filing Date | Form Type | Description | Document |
| 2017-09-08 | 3 | FORM 3 SUBMISSION | View Document |
| 2017-09-08 | 8-K | 8-K | View Document |
| 2017-09-05 | 8-K | FORM 8-K | View Document |
| 2017-08-04 | 10-Q | 10-Q Q2 2017 | View Document |
| 2017-08-01 | 4 | FORM 4 SUBMISSION | View Document |
| 2017-07-27 | 8-K | 8-K-Q2 2017 PRESS RELEASE | View Document |
| 2017-07-14 | 4 | FORM 4 SUBMISSION | View Document |
| 2017-07-14 | 4 | FORM 4 SUBMISSION | View Document |
| 2017-06-30 | 8-K | 8-K VOTING RESULTS FROM ANNUAL MEETING | View Document |
| 2017-06-29 | S-8 | FORM S-8 | View Document |
| 2017-06-09 | 4 | FORM 4 SUBMISSION | View Document |
| 2017-06-09 | 4 | FORM 4 SUBMISSION | View Document |
| 2017-05-23 | 8-K | FORM 8-K | View Document |
| 2017-05-18 | DEFA14A | DEFA14A | View Document |
| 2017-05-18 | DEF 14A | PTEN_DEF 14A | View Document |
| 2017-05-11 | 8-K | FORM 8-K | View Document |
| 2017-05-04 | 4 | FORM 4 SUBMISSION | View Document |
| 2017-05-04 | 4 | FORM 4 SUBMISSION | View Document |
| 2017-05-04 | 4 | FORM 4 SUBMISSION | View Document |
| 2017-05-04 | 4 | FORM 4 SUBMISSION | View Document |
| 2017-05-04 | 4 | FORM 4 SUBMISSION | View Document |
| 2017-05-04 | 4 | FORM 4 SUBMISSION | View Document |
| 2017-05-02 | 10-Q | PTEN-Q1-20170331 | View Document |
| 2017-04-27 | 4 | FORM 4 SUBMISSION | View Document |
| 2017-04-27 | 8-K | PTEN-8K-20170126 | View Document |
| 2017-04-21 | 8-K | FORM 8-K | View Document |
| 2017-04-21 | S-8 | S-8 | View Document |
| 2017-04-12 | 8-K | FORM 8-K | View Document |
| 2017-04-12 | 425 | FORM 8-K | View Document |
| 2017-03-22 | EFFECT | View Document | |
| 2017-03-22 | 424B3 | 424B3 | View Document |
| 2017-03-22 | 8-K | FORM 8-K | View Document |
| 2017-03-22 | 425 | FORM 8-K | View Document |
| 2017-03-22 | CORRESP | View Document | |
| 2017-03-21 | CORRESP | View Document | |
| 2017-03-13 | CORRESP | View Document | |
| 2017-03-13 | S-4/A | AMENDMENT NO. 2 TO FORM S-4 | View Document |
| 2017-03-13 | 10-K/A | FORM 10-K/A | View Document |
| 2017-03-08 | 4 | FORM 4 SUBMISSION | View Document |
| 2017-03-07 | 8-K | FORM 8-K | View Document |
| 2017-03-07 | 425 | FORM 8-K | View Document |
| 2017-03-06 | UPLOAD | View Document | |
| 2017-02-23 | CORRESP | View Document | |
| 2017-02-23 | S-4/A | AMENDMENT NO. 1 TO FORM S-4 | View Document |
| 2017-02-22 | 8-K | FORM 8-K | View Document |
| 2017-02-22 | 425 | FORM 8-K | View Document |
| 2017-02-21 | UPLOAD | View Document | |
| 2017-02-14 | 8-K | FORM 8-K | View Document |
| 2017-02-14 | 425 | FORM 8-K | View Document |
| 2017-02-13 | 8-K | FORM 8-K | View Document |
| 2017-02-13 | 425 | FORM 8-K | View Document |
| 2017-02-13 | 10-K | PTEN-10K-20161231 | View Document |
| 2017-02-10 | SC 13G/A | View Document | |
| 2017-02-09 | SC 13G/A | SEC SCHEDULE 13G | View Document |
| 2017-02-09 | SC 13G | SCHEDULE 13G | View Document |
| 2017-02-09 | 8-K | PTEN-8K-20170126 | View Document |
| 2017-01-27 | 8-K | FORM 8-K | View Document |
| 2017-01-26 | 424B5 | FINAL PROSPECTUS SUPPLEMENT | View Document |
| 2017-01-25 | SC 13G/A | View Document | |
| 2017-01-24 | FWP | FWP | View Document |
| 2017-01-24 | 424B5 | PRELIMINARY PROSPECTUS SUPPLEMENT | View Document |
| 2017-01-24 | 8-K | FORM 8-K | View Document |
| 2017-01-24 | S-3ASR | S-3ASR | View Document |
| 2017-01-24 | 8-K | FORM 8-K | View Document |
| 2017-01-24 | 425 | FORM 8-K | View Document |
| 2017-01-23 | 8-K | FORM 8-K | View Document |
| 2017-01-23 | 425 | FORM 8-K | View Document |
| 2017-01-23 | S-4 | FORM S-4 | View Document |
| 2017-01-17 | 8-K | 8-K | View Document |
| 2017-01-06 | 425 | 425 | View Document |
| 2017-01-05 | 8-K | FORM 8-K | View Document |
| 2017-01-05 | 425 | FORM 8-K | View Document |
| 2017-01-04 | 4 | FORM 4 SUBMISSION | View Document |
| 2017-01-04 | 4 | FORM 4 SUBMISSION | View Document |
| 2017-01-04 | 4 | FORM 4 SUBMISSION | View Document |
| 2017-01-04 | 4 | FORM 4 SUBMISSION | View Document |
| 2017-01-04 | 4 | FORM 4 SUBMISSION | View Document |
| 2016-12-21 | 4 | FORM 4 SUBMISSION | View Document |
| 2016-12-20 | 4 | FORM 4 SUBMISSION | View Document |
| 2016-12-14 | 425 | 425 | View Document |
| 2016-12-13 | 425 | 425 | View Document |
| 2016-12-13 | 8-K | FORM 8-K | View Document |
| 2016-12-13 | 425 | FORM 8-K | View Document |
| 2016-11-29 | 8-K | FORM 8-K | View Document |
| 2016-10-31 | 10-Q | PTEN-Q3-20160930 | View Document |
| 2016-10-27 | 8-K | PTEN-8K-20161027 | View Document |
| 2016-09-21 | 8-K | FORM 8-K | View Document |
| 2016-09-06 | 8-K | FORM 8-K | View Document |
| 2016-08-02 | 4 | FORM 4 SUBMISSION | View Document |
| 2016-08-02 | 10-Q | PTEN-Q2-20160630 | View Document |
| 2016-07-28 | 8-K | FORM 8-K | View Document |
| 2016-07-12 | 8-K | 8-K | View Document |
| 2016-06-28 | 8-K | 8-K | View Document |
| 2016-06-10 | 4 | FORM 4 SUBMISSION | View Document |
| 2016-06-10 | 4 | FORM 4 SUBMISSION | View Document |
| 2016-06-02 | 8-K | LIVE FILING | View Document |
| 2016-05-24 | 8-K | FORM 8-K | View Document |
| 2016-05-10 | 8-K | 8-K | View Document |
| 2016-05-02 | 10-Q | 10-Q | View Document |
| 2016-04-28 | 8-K | 8-K | View Document |
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