| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 22 Oct 2025 | 20 Oct 2025 | 000-23939 |
| SCHEDULE 13G/A | Open Document | Open Filing | 14 Aug 2025 | |||
| 4 | Open Document | Open Filing | FORM 4 | 07 Aug 2025 | 05 Aug 2025 | 000-23939 |
| 4 | Open Document | Open Filing | FORM 4 | 01 Aug 2025 | 30 Jul 2025 | 000-23939 |
| 4 | Open Document | Open Filing | FORM 4 | 14 Jul 2025 | 12 May 2025 | 000-23939 |
| 4 | Open Document | Open Filing | FORM 4 | 28 Feb 2025 | 27 Feb 2025 | 000-23939 |
| SC 13G/A | Open Document | Open Filing | SC 13G/A | 13 Feb 2024 | ||
| 4 | Open Document | Open Filing | FORM 4 | 03 Nov 2023 | 01 Nov 2023 | 000-23939 |
| 4 | Open Document | Open Filing | FORM 4 | 08 Aug 2023 | 04 Aug 2023 | 000-23939 |
| 4 | Open Document | Open Filing | FORM 4 | 09 Mar 2023 | 08 Mar 2023 | 000-23939 |
| 4 | Open Document | Open Filing | FORM 4 | 28 Feb 2023 | 09 Feb 2023 | 000-23939 |
| SC 13G/A | Open Document | Open Filing | AMENDMENT NO. 24 TO SCHEDULE 13G | 10 Feb 2023 | ||
| 5 | Open Document | Open Filing | FORM 5 | 10 Feb 2023 | 31 Dec 2022 | 000-23939 |
| SC 13G/A | Open Document | Open Filing | AMENDMENT NO. 23 TO SCHEDULE 13G | 11 Feb 2022 | ||
| 5 | Open Document | Open Filing | ANNUAL STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP | 11 Feb 2022 | 31 Dec 2021 | 000-23939 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 Oct 2021 | 21 Oct 2021 | 000-23939 |
| SC 13G/A | Open Document | Open Filing | AMENDMENT NO. 22 TO SCHEDULE 13G | 16 Feb 2021 | ||
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Feb 2021 | 31 Dec 2020 | 000-23939 |
| 4 | Open Document | Open Filing | FORM 4 | 02 Oct 2020 | 30 Sep 2020 | 000-26542 |
| SC 13G/A | Open Document | Open Filing | AMENDMENT NO. 21 TO SCHEDULE 13G | 12 Feb 2020 | ||
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Feb 2020 | 31 Dec 2019 | 000-23939 |
| 4 | Open Document | Open Filing | FORM 4 | 16 May 2019 | 14 May 2019 | 000-26542 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Feb 2019 | 31 Dec 2018 | 000-23939 |
| SC 13G/A | Open Document | Open Filing | AMENDMENT NO. 20 TO SCHEDULE 13G | 13 Feb 2019 | ||
| 4 | Open Document | Open Filing | FORM 4 | 29 May 2018 | 24 May 2018 | 001-15973 |
| 4 | Open Document | Open Filing | FORM 4 | 17 May 2018 | 16 May 2018 | 000-26542 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Feb 2018 | 31 Dec 2017 | 000-23939 |
| SC 13G/A | Open Document | Open Filing | SC 13G/A | 07 Feb 2018 | ||
| 4 | Open Document | Open Filing | FORM 4 | 30 May 2017 | 25 May 2017 | 001-15973 |
| 4/A | Open Document | Open Filing | FORM 4/A | 18 May 2017 | 17 May 2017 | 000-26542 |
| 4 | Open Document | Open Filing | FORM 4 | 18 May 2017 | 17 May 2017 | 000-26542 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Feb 2017 | 31 Dec 2016 | 000-23939 |
| SC 13G/A | Open Document | Open Filing | SC 13G/A | 10 Feb 2017 | ||
| 4 | Open Document | Open Filing | FORM 4 | 31 May 2016 | 26 May 2016 | 001-15973 |
| 4 | Open Document | Open Filing | FORM 4 | 12 May 2016 | 11 May 2016 | 000-26542 |
| SC 13G/A | Open Document | Open Filing | SC 13G/A | 12 Feb 2016 | ||
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Feb 2016 | 31 Dec 2015 | 000-23939 |
| 4 | Open Document | Open Filing | FORM 4 | 05 Jan 2016 | 01 Jan 2016 | 001-15973 |
| 4 | Open Document | Open Filing | FORM 4 | 20 May 2015 | 20 May 2015 | 000-26542 |
| SC 13G/A | Open Document | Open Filing | SC 13G/A | 05 Feb 2015 | ||
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Feb 2015 | 31 Dec 2014 | 000-23939 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 May 2014 | 20 May 2014 | 000-26542 |
| SC 13G/A | Open Document | Open Filing | SC 13G/A | 05 Feb 2014 | ||
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 31 Jan 2014 | 31 Dec 2013 | 000-23939 |