| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 11 Sep 2025 | 09 Sep 2025 | 000-21617 | |
| 4/A | Open Document | Open Filing | 21 Mar 2024 | 17 Mar 2024 | 000-21617 | |
| 4 | Open Document | Open Filing | 19 Mar 2024 | 17 Mar 2024 | 000-21617 | |
| SC 13D/A | Open Document | Open Filing | 19 Mar 2024 | |||
| 4 | Open Document | Open Filing | 05 Apr 2023 | 05 Apr 2023 | 000-21617 | |
| SC 13D/A | Open Document | Open Filing | 05 Apr 2023 | |||
| 4 | Open Document | Open Filing | 04 Apr 2023 | 03 Apr 2023 | 000-21617 | |
| SC 13D/A | Open Document | Open Filing | 04 Apr 2023 | |||
| 4 | Open Document | Open Filing | 02 Feb 2023 | 01 Feb 2023 | 000-21617 | |
| SC 13D/A | Open Document | Open Filing | 02 Feb 2023 | |||
| 4 | Open Document | Open Filing | 17 Jan 2023 | 13 Jan 2023 | 000-21617 | |
| SC 13D/A | Open Document | Open Filing | 17 Jan 2023 | |||
| SC 13D/A | Open Document | Open Filing | 18 Oct 2022 | |||
| 4 | Open Document | Open Filing | 18 Oct 2022 | 16 Oct 2022 | 000-21617 | |
| SC 13D/A | Open Document | Open Filing | 11 Aug 2022 | |||
| 4 | Open Document | Open Filing | 10 Aug 2022 | 10 Aug 2022 | 000-21617 | |
| SC 13D/A | Open Document | Open Filing | 26 May 2022 | |||
| 4 | Open Document | Open Filing | 25 May 2022 | 23 May 2022 | 000-21617 | |
| 4 | Open Document | Open Filing | 10 Jun 2021 | 03 Jun 2021 | 000-21617 | |
| 4 | Open Document | Open Filing | 10 May 2021 | 07 May 2021 | 000-21617 | |
| SC 13D/A | Open Document | Open Filing | 10 May 2021 | |||
| 4 | Open Document | Open Filing | 17 Aug 2020 | 13 Aug 2020 | 000-21617 | |
| SC 13D/A | Open Document | Open Filing | 17 Aug 2020 | |||
| 4 | Open Document | Open Filing | 13 Jul 2020 | 09 Jul 2020 | 000-21617 | |
| SC 13D/A | Open Document | Open Filing | 30 Mar 2020 | |||
| 4 | Open Document | Open Filing | 27 Mar 2020 | 26 Mar 2020 | 000-21617 | |
| 4 | Open Document | Open Filing | 17 May 2018 | 15 May 2018 | 000-21617 | |
| 4 | Open Document | Open Filing | 26 Feb 2018 | 23 Feb 2018 | 000-21617 | |
| SC 13D/A | Open Document | Open Filing | 26 Feb 2018 | |||
| SC 13D/A | Open Document | Open Filing | 26 Dec 2017 | |||
| 4 | Open Document | Open Filing | 26 Dec 2017 | 21 Dec 2017 | 000-21617 | |
| 4 | Open Document | Open Filing | 18 Dec 2017 | 14 Dec 2017 | 000-21617 | |
| SC 13D/A | Open Document | Open Filing | 03 Oct 2017 | |||
| 4 | Open Document | Open Filing | 02 Oct 2017 | 29 Sep 2017 | 000-21617 | |
| SC 13D/A | Open Document | Open Filing | 03 May 2017 | |||
| 4 | Open Document | Open Filing | 28 Apr 2017 | 27 Apr 2017 | 000-21617 | |
| SC 13D/A | Open Document | Open Filing | 27 Jan 2017 | |||
| SC 13D/A | Open Document | Open Filing | SCHEDULE 13D/A | 08 Jun 2015 | ||
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 05 Jun 2015 | 04 Jun 2015 | 000-21617 |
| SC 13D/A | Open Document | Open Filing | AMENDED SCHEDULE 13D | 27 May 2015 | ||
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 19 May 2015 | 18 May 2015 | 000-21617 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 23 Dec 2014 | 20 Dec 2014 | 000-21617 |
| SC 13D/A | Open Document | Open Filing | SC 13D/A | 19 Sep 2014 | ||
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 26 Jun 2014 | 23 Jun 2014 | 000-21617 |