| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 13 Jul 2023 | 15 Jun 2023 | 001-33997 |
| 4 | Open Document | Open Filing | 18 May 2022 | 17 May 2022 | 001-33997 | |
| 4 | Open Document | Open Filing | 19 May 2021 | 17 May 2021 | 001-33997 | |
| 4 | Open Document | Open Filing | 07 Jul 2020 | 03 Jul 2020 | 001-33997 | |
| 4 | Open Document | Open Filing | 06 Sep 2019 | 19 Aug 2019 | 001-33997 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 17 May 2019 | 16 May 2019 | 001-33997 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 16 May 2019 | 15 May 2019 | 001-33997 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 28 Mar 2019 | 27 Mar 2019 | 001-33997 |
| 4 | Open Document | Open Filing | 18 Sep 2018 | 17 Sep 2018 | 001-33997 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 14 Sep 2018 | 12 Sep 2018 | 001-33997 |
| 4 | Open Document | Open Filing | 12 Sep 2018 | 10 Sep 2018 | 001-33997 | |
| 4 | Open Document | Open Filing | 07 Sep 2018 | 05 Sep 2018 | 001-33997 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 23 Aug 2018 | 21 Aug 2018 | 001-33997 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 17 Aug 2018 | 15 Aug 2018 | 001-33997 |
| 4 | Open Document | Open Filing | 16 Aug 2018 | 03 Aug 2018 | 001-33997 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 29 Jun 2018 | 21 Apr 2018 | 001-33997 |
| 5 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 13 Mar 2018 | 31 Dec 2017 | 001-33997 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 23 Mar 2017 | 21 Mar 2017 | 001-33997 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 29 Dec 2016 | 27 Dec 2016 | 001-33997 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 22 Dec 2016 | 30 Nov 2016 | 001-33997 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 05 Dec 2016 | 01 Dec 2016 | 001-33997 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 30 Nov 2016 | 28 Nov 2016 | 001-33997 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 28 Nov 2016 | 13 Apr 2016 | 001-33997 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 11 Mar 2016 | 07 Jun 2015 | 001-33997 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 29 May 2015 | 27 May 2015 | 001-33997 |
| 5 | Open Document | Open Filing | ANNUAL STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP | 11 Mar 2015 | 31 Dec 2014 | 001-33997 |