| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 21 Feb 2025 | 19 Feb 2025 | 000-10537 | |
| 4 | Open Document | Open Filing | 22 Feb 2024 | 20 Feb 2024 | 000-10537 | |
| 4 | Open Document | Open Filing | 23 Feb 2023 | 21 Feb 2023 | 000-10537 | |
| 4 | Open Document | Open Filing | 17 Feb 2022 | 15 Feb 2022 | 000-10537 | |
| 4 | Open Document | Open Filing | FORM 4 - | 19 Aug 2021 | 18 Aug 2021 | 000-10537 |
| 4 | Open Document | Open Filing | FORM 4 - | 18 Aug 2021 | 17 Aug 2021 | 000-10537 |
| 3 | Open Document | Open Filing | FORM 3 - | 18 Aug 2021 | 17 Aug 2021 | 000-10537 |
| 4 | Open Document | Open Filing | FORM 4 | 08 May 2020 | 06 May 2020 | 001-39009 |
| 4 | Open Document | Open Filing | FORM 4 | 02 Mar 2020 | 27 Feb 2020 | 001-39009 |
| 4 | Open Document | Open Filing | FORM 4 | 27 Feb 2020 | 25 Feb 2020 | 001-39009 |
| 4 | Open Document | Open Filing | FORM 4 | 03 Jan 2020 | 31 Dec 2019 | 001-39009 |
| 4 | Open Document | Open Filing | FORM 4 | 04 Sep 2019 | 31 Aug 2019 | 001-39009 |
| 4 | Open Document | Open Filing | FORM 4 | 05 Aug 2019 | 01 Aug 2019 | 001-39009 |
| 4 | Open Document | Open Filing | FORM 4 | 14 Jun 2019 | 13 Jun 2019 | 000-08185 |
| 4 | Open Document | Open Filing | FORM 4 | 01 Mar 2019 | 27 Feb 2019 | 000-08185 |
| 4 | Open Document | Open Filing | FORM 4 | 26 Feb 2019 | 22 Feb 2019 | 000-08185 |
| 4 | Open Document | Open Filing | FORM 4 | 01 Mar 2018 | 27 Feb 2018 | 000-08185 |
| 4 | Open Document | Open Filing | FORM 4 | 26 Feb 2018 | 22 Feb 2018 | 000-08185 |
| 4 | Open Document | Open Filing | FORM 4 | 06 Feb 2018 | 02 Feb 2018 | 000-08185 |
| 4 | Open Document | Open Filing | FORM 4 | 26 Jan 2018 | 24 Jan 2018 | 000-08185 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 01 Sep 2017 | 31 Aug 2017 | 000-08185 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 23 Feb 2017 | 21 Feb 2017 | 000-08185 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 06 Jan 2017 | 04 Jan 2017 | 000-08185 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 02 Sep 2016 | 31 Aug 2016 | 000-08185 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 31 Aug 2016 | 31 Aug 2016 | 000-08185 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 31 Aug 2016 | 30 Aug 2016 | 001-36308 |
| 4 | Open Document | Open Filing | FORM 4 | 26 Aug 2016 | 24 Aug 2016 | 001-36308 |
| 4 | Open Document | Open Filing | FORM 4 | 23 Feb 2016 | 22 Feb 2016 | 001-36308 |
| 4 | Open Document | Open Filing | FORM 4 | 02 Feb 2016 | 02 Feb 2016 | 001-36308 |
| 4 | Open Document | Open Filing | 4 | 27 Mar 2015 | 25 Mar 2015 | 001-36308 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Aug 2014 | 18 Aug 2014 | 001-36308 |
| 4 | Open Document | Open Filing | 4 | 12 Jun 2014 | 10 Jun 2014 | 001-36308 |
| 4 | Open Document | Open Filing | 4 | 14 Feb 2014 | 14 Feb 2014 | 001-36308 |
| 3 | Open Document | Open Filing | 3 | 11 Feb 2014 | 11 Feb 2014 | 001-36308 |