| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 11 Sep 2025 | 10 Sep 2025 | 000-52759 | |
| 4 | Open Document | Open Filing | 08 Sep 2025 | 08 Sep 2025 | 000-52759 | |
| 4 | Open Document | Open Filing | 05 Sep 2025 | 05 Sep 2025 | 000-52759 | |
| 4 | Open Document | Open Filing | 03 Jul 2025 | 02 Jul 2025 | 000-52759 | |
| 4 | Open Document | Open Filing | 12 May 2025 | 09 May 2025 | 000-52759 | |
| 4 | Open Document | Open Filing | 03 Feb 2025 | 30 Jan 2025 | 000-52759 | |
| 4 | Open Document | Open Filing | 23 Jan 2025 | 22 Jan 2025 | 000-52759 | |
| 4 | Open Document | Open Filing | 03 Jan 2025 | 02 Jan 2025 | 000-52759 | |
| 4 | Open Document | Open Filing | 15 Nov 2024 | 12 Nov 2024 | 000-52759 | |
| 4 | Open Document | Open Filing | 09 Sep 2024 | 06 Sep 2024 | 000-52759 | |
| 4 | Open Document | Open Filing | 28 Aug 2024 | 27 Aug 2024 | 000-52759 | |
| 4 | Open Document | Open Filing | 16 Aug 2024 | 15 Aug 2024 | 000-52759 | |
| 4 | Open Document | Open Filing | 02 Aug 2024 | 01 Aug 2024 | 000-52759 | |
| 4 | Open Document | Open Filing | 23 Jul 2024 | 22 Jul 2024 | 000-52759 | |
| 4 | Open Document | Open Filing | 15 Jul 2024 | 15 Jul 2024 | 000-52759 | |
| 4 | Open Document | Open Filing | 18 Jun 2024 | 17 Jun 2024 | 000-52759 | |
| 4 | Open Document | Open Filing | 21 May 2024 | 20 May 2024 | 000-52759 | |
| 4 | Open Document | Open Filing | 16 May 2024 | 15 May 2024 | 000-52759 | |
| 4 | Open Document | Open Filing | 08 May 2024 | 07 May 2024 | 000-52759 | |
| 4 | Open Document | Open Filing | 24 Apr 2024 | 24 Apr 2024 | 000-52759 | |
| 4 | Open Document | Open Filing | 19 Mar 2024 | 18 Mar 2024 | 000-52759 | |
| 4 | Open Document | Open Filing | 04 Mar 2024 | 01 Mar 2024 | 000-52759 | |
| 4 | Open Document | Open Filing | 15 Feb 2024 | 04 Dec 2023 | 000-52759 | |
| 4 | Open Document | Open Filing | 19 Oct 2023 | 16 Oct 2023 | 000-52759 | |
| 4 | Open Document | Open Filing | 02 May 2023 | 01 May 2023 | 000-52759 | |
| 4 | Open Document | Open Filing | 22 Jul 2022 | 30 Jun 2022 | 000-52759 | |
| SC 13D/A | Open Document | Open Filing | AMENDMENT NO. 2 TO SCHEDULE 13D | 15 Apr 2022 | ||
| 4 | Open Document | Open Filing | 15 Apr 2022 | 13 Apr 2022 | 000-52759 | |
| SC 13D/A | Open Document | Open Filing | AMENDMENT NO. 1 TO SCHEDULE 13D | 17 Dec 2021 | ||
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 15 Dec 2021 | 14 Dec 2021 | 000-52759 |
| SC 13D | Open Document | Open Filing | SCHEDULE 13D | 29 Nov 2021 | ||
| 3 | Open Document | Open Filing | 29 Nov 2021 | 19 Nov 2021 | 000-52759 | |
| SC 13D/A | Open Document | Open Filing | AMENDMENT NO. 5 TO SCHEDULE 13D | 15 Jul 2020 | ||
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 28 Apr 2020 | 22 Apr 2020 | 000-54457 |
| SC 13D/A | Open Document | Open Filing | AMENDMENT NO. 4 TO SCHEDULE 13D | 14 Feb 2020 | ||
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 22 Jan 2020 | 21 Jan 2020 | 000-54457 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 04 Oct 2019 | 02 Oct 2019 | 000-54457 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 07 Aug 2019 | 06 Aug 2019 | 000-54457 |
| 4 | Open Document | Open Filing | 31 Jul 2019 | 29 Jul 2019 | 000-54457 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 12 Jun 2019 | 11 Jun 2019 | 000-54457 |
| 4 | Open Document | Open Filing | 06 Jun 2019 | 04 Jun 2019 | 000-54457 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 26 Apr 2019 | 24 Apr 2019 | 000-54457 |
| SC 13D/A | Open Document | Open Filing | AMENDMENT NO. 3 TO SCHEDULE 13D | 14 Feb 2019 | ||
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 23 Jan 2019 | 21 Jan 2019 | 000-54457 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 16 Oct 2018 | 13 Oct 2018 | 000-54457 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 24 Sep 2018 | 20 Sep 2018 | 000-54457 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 29 Jun 2018 | 27 Jun 2018 | 000-54457 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 03 Apr 2018 | 30 Mar 2018 | 000-54457 |
| SC 13D/A | Open Document | Open Filing | AMENDMENT NO. 2 TO SCHEDULE 13D | 14 Feb 2018 | ||
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 29 Dec 2017 | 29 Dec 2017 | 000-54457 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 26 Dec 2017 | 21 Dec 2017 | 000-54457 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 12 Dec 2017 | 08 Dec 2017 | 000-54457 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 29 Sep 2017 | 28 Sep 2017 | 000-54457 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 10 Jul 2017 | 06 Jul 2017 | 000-54457 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 22 Jun 2017 | 20 Jun 2017 | 000-54457 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 04 Apr 2017 | 31 Mar 2017 | 000-54457 |
| SC 13D/A | Open Document | Open Filing | AMENDMENT NO. 1 TO SCHEDULE 13D | 14 Feb 2017 | ||
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 09 Feb 2017 | 07 Feb 2017 | 000-54457 |
| 5 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 03 Feb 2017 | 31 Dec 2016 | 000-54457 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 04 Jan 2017 | 30 Dec 2016 | 000-54457 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 09 Sep 2016 | 07 Sep 2016 | 000-54457 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 08 Sep 2016 | 25 Aug 2016 | 000-54457 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 08 Jul 2016 | 01 Jul 2016 | 000-54457 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 08 Apr 2016 | 31 Mar 2016 | 000-54457 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 11 Feb 2016 | 11 Feb 2016 | 000-54457 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 29 Dec 2015 | 18 Dec 2015 | 000-54457 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 15 Dec 2015 | 08 Dec 2015 | 000-54457 |
| SC 13D/A | Open Document | Open Filing | 09 Sep 2015 | |||
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 02 Sep 2015 | 31 Aug 2015 | 000-54457 |
| SC 13D | Open Document | Open Filing | 08 May 2015 | |||
| 4 | Open Document | Open Filing | FORM 4 | 01 May 2015 | 28 Apr 2015 | 000-54457 |
| 4 | Open Document | Open Filing | FORM 4 | 05 Jan 2015 | 02 Jan 2015 | 000-01665 |
| 4 | Open Document | Open Filing | FORM 4 | 30 Dec 2014 | 30 Dec 2014 | 000-01665 |
| 4 | Open Document | Open Filing | FORM 4 | 30 Dec 2014 | 29 Dec 2014 | 000-01665 |
| 4 | Open Document | Open Filing | FORM 4 | 29 Dec 2014 | 26 Dec 2014 | 000-01665 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Aug 2014 | 04 Aug 2014 | 000-54457 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Aug 2014 | 07 Aug 2014 | 000-54457 |