| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 14 Sep 2021 | 14 Sep 2021 | 001-38252 |
| 4 | Open Document | Open Filing | FORM 4 | 27 Aug 2021 | 10 Aug 2021 | 001-38252 |
| 3 | Open Document | Open Filing | FORM 3 | 27 Aug 2021 | 10 Aug 2021 | 001-38252 |
| 4 | Open Document | Open Filing | FORM 4 | 12 Jul 2021 | 08 Jul 2021 | 001-40574 |
| 4 | Open Document | Open Filing | FORM 4 | 16 Jun 2021 | 14 Jun 2021 | 000-52049 |
| 4 | Open Document | Open Filing | FORM 4 | 15 Mar 2021 | 12 Mar 2021 | 000-52049 |
| 4 | Open Document | Open Filing | FORM 4 | 09 Jul 2020 | 07 Jul 2020 | 000-52049 |
| 4 | Open Document | Open Filing | FORM 4 | 22 Jun 2020 | 18 Jun 2020 | 000-52049 |
| 4 | Open Document | Open Filing | FORM 4 | 24 Feb 2020 | 20 Feb 2020 | 000-52049 |
| 4 | Open Document | Open Filing | FORM 4 | 18 Nov 2019 | 15 Nov 2019 | 000-52049 |
| 4 | Open Document | Open Filing | FORM 4 | 11 Jul 2019 | 09 Jul 2019 | 000-52049 |
| 4 | Open Document | Open Filing | FORM 4 | 10 Jun 2019 | 06 Jun 2019 | 000-52049 |
| 4 | Open Document | Open Filing | FORM 4 | 19 Nov 2018 | 15 Nov 2018 | 000-52049 |
| 3 | Open Document | Open Filing | FORM 3 | 17 Aug 2018 | 09 Aug 2018 | 000-52049 |
| 4 | Open Document | Open Filing | FORM 4 | 09 May 2017 | 07 May 2017 | 001-33105 |
| 4 | Open Document | Open Filing | FORM 4 | 28 Apr 2017 | 26 Apr 2017 | 001-33105 |
| 4 | Open Document | Open Filing | FORM 4 | 24 Apr 2017 | 20 Apr 2017 | 001-33105 |
| 4 | Open Document | Open Filing | FORM 4 | 19 Apr 2017 | 17 Apr 2017 | 001-33105 |
| 4 | Open Document | Open Filing | FORM 4 | 12 Dec 2016 | 07 Dec 2016 | 001-33105 |
| 4 | Open Document | Open Filing | FORM 4 | 11 May 2016 | 09 May 2016 | 001-33105 |
| 4 | Open Document | Open Filing | FORM 4 | 28 Apr 2016 | 26 Apr 2016 | 001-33105 |
| 4 | Open Document | Open Filing | FORM 4 | 20 Apr 2016 | 18 Apr 2016 | 001-33105 |
| 4/A | Open Document | Open Filing | FORM 4/A | 08 Jul 2015 | 08 May 2015 | 001-33105 |
| 4 | Open Document | Open Filing | FORM 4 | 12 May 2015 | 08 May 2015 | 001-33105 |
| 4 | Open Document | Open Filing | FORM 4 | 21 Apr 2015 | 17 Apr 2015 | 001-33105 |
| 4 | Open Document | Open Filing | FORM 4 | 09 Dec 2014 | 05 Dec 2014 | 001-33105 |
| 4 | Open Document | Open Filing | FORM 4 | 18 Jul 2014 | 02 Apr 2014 | 001-33105 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Apr 2013 | 02 Apr 2013 | 001-33105 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Apr 2013 | 02 Apr 2013 | 001-33105 |
| 4 | Open Document | Open Filing | WITHHOLDING OF RESTRICTED STOCK TAX LIABILITY FOR MR. CLARK. | 02 Apr 2013 | 30 Mar 2013 | 000-28551 |
| 4 | Open Document | Open Filing | WITHHOLDING OF COMMON STOCK TO COVER TAX LIABILITY | 05 Mar 2013 | 01 Mar 2013 | 000-28551 |
| 4 | Open Document | Open Filing | WITHHOLDING OF RESTRICTED STOCK TO COVER TAX LIABILITY | 28 Nov 2012 | 26 Nov 2012 | 000-28551 |
| 4 | Open Document | Open Filing | TAX WITHHOLDING FOR MR. CLARK. | 23 Jul 2012 | 20 Jul 2012 | 000-28551 |
| 4 | Open Document | Open Filing | WITHHOLDING OF RESTRICTED STOCK TO COVER TAX LIABILTY OF MR. CLARK | 11 Jul 2012 | 09 Jul 2012 | 000-28551 |
| 4 | Open Document | Open Filing | TRANSACTIONS FOR MR. CLARK | 03 Apr 2012 | 30 Mar 2012 | 000-28551 |