| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 26 Oct 2022 | 21 Oct 2022 | 001-35355 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 01 Sep 2021 | 31 Aug 2021 | 000-55418 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 03 Mar 2021 | 02 Mar 2021 | 001-35355 |
| 4 | Open Document | Open Filing | FORM 4 | 01 Mar 2021 | 01 Mar 2021 | 000-55418 |
| 4 | Open Document | Open Filing | FORM 4 | 01 Sep 2020 | 17 Jun 2020 | 000-55418 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 05 Mar 2020 | 03 Mar 2020 | 001-35355 |
| 4 | Open Document | Open Filing | FORM 4 | 17 Jan 2020 | 15 Jan 2020 | 000-55418 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 07 Mar 2019 | 05 Mar 2019 | 001-35355 |
| 4 | Open Document | Open Filing | FORM 4 | 04 Sep 2018 | 01 Sep 2018 | 000-55418 |
| 4 | Open Document | Open Filing | FORM 4 | 02 Aug 2018 | 31 Jul 2018 | 000-55418 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 08 Mar 2018 | 06 Mar 2018 | 001-35355 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Nov 2017 | 14 Nov 2017 | 000-55418 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Nov 2017 | 14 Nov 2017 | 000-55418 |
| 4/A | Open Document | Open Filing | FORM 4/A SUBMISSION | 19 Apr 2017 | 17 Apr 2017 | 001-35355 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 18 Apr 2017 | 17 Apr 2017 | 001-35355 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 20 Apr 2016 | 18 Apr 2016 | 001-35355 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 20 Apr 2015 | 16 Apr 2015 | 001-35355 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 01 Aug 2014 | 22 Jul 2014 | 001-35355 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 07 Apr 2014 | 31 Mar 2014 | 001-35355 |
| 4 | Open Document | Open Filing | STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES | 03 Apr 2014 | 01 Apr 2014 | 001-32887 |
| 4 | Open Document | Open Filing | STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES | 19 Mar 2014 | 17 Mar 2014 | 001-32887 |
| 4 | Open Document | Open Filing | STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES | 24 Feb 2014 | 21 Feb 2014 | 001-32887 |
| 4 | Open Document | Open Filing | STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES | 03 Apr 2013 | 01 Apr 2013 | 001-32887 |
| 3 | Open Document | Open Filing | FORM 3 | 20 Nov 2012 | 19 Nov 2012 | 001-35355 |
| 4 | Open Document | Open Filing | STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES | 05 Sep 2012 | 04 Sep 2012 | 001-32887 |
| 3 | Open Document | Open Filing | INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES | 18 Jul 2012 | 09 Jul 2012 | 001-32887 |