| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 11 Jul 2023 | 08 Jul 2023 | 001-38175 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 23 Jul 2021 | 21 Jul 2021 | 001-38175 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 15 Jul 2021 | 15 Jul 2021 | 001-38175 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 14 Jan 2021 | 12 Jan 2021 | 001-38175 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 05 Jan 2021 | 31 Dec 2020 | 001-38175 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 28 Oct 2020 | 26 Oct 2020 | 001-38175 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 18 Sep 2020 | 16 Sep 2020 | 001-38175 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 02 Sep 2020 | 31 Aug 2020 | 001-38175 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 14 Jul 2020 | 13 Jul 2020 | 001-38175 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 10 Jul 2020 | 08 Jul 2020 | 001-38175 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 05 May 2020 | 01 May 2020 | 001-38175 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 05 Feb 2020 | 04 Feb 2020 | 001-38175 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 17 Jul 2019 | 15 Jul 2019 | 001-38175 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 12 Jul 2019 | 10 Jul 2019 | 001-38175 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 11 Jun 2019 | 07 Jun 2019 | 001-38175 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 03 May 2019 | 30 Apr 2019 | 001-38175 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 14 Jan 2019 | 10 Jan 2019 | 001-38175 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 23 Jul 2018 | 19 Jul 2018 | 001-38175 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 22 Jan 2018 | 19 Jan 2018 | 001-38175 |
| 5 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 14 Jun 2017 | 30 Apr 2017 | 000-55107 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 16 May 2017 | 13 May 2017 | 000-55107 |
| SC 13D/A | Open Document | Open Filing | SC 13D/A | 20 Apr 2017 | ||
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 25 Apr 2016 | 22 Apr 2016 | 000-55107 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 15 Dec 2015 | 11 Dec 2015 | 000-55107 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 03 Nov 2015 | 29 Oct 2015 | 000-55107 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 29 Oct 2015 | 27 Oct 2015 | 000-55107 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 10 Sep 2015 | 09 Sep 2015 | 000-55107 |
| 5 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 05 Jun 2015 | 30 Apr 2015 | 000-55107 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 05 Sep 2014 | 04 Sep 2014 | 000-55107 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 23 Jul 2014 | 21 Jul 2014 | 000-55107 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 25 Jun 2014 | 24 Jun 2014 | 000-55107 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 01 May 2014 | 30 Apr 2014 | 000-55107 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 24 Apr 2014 | 22 Apr 2014 | 000-55107 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 12 Mar 2014 | 10 Mar 2014 | 000-55107 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 22 Nov 2013 | 22 Nov 2013 | 000-55107 |
| SC 13D | Open Document | Open Filing | SC 13D | 22 Nov 2013 | ||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 May 2013 | 21 May 2013 | 333-165685 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 13 Apr 2012 | 30 Mar 2012 | 000-33383 |