| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| SC 13G/A | Open Document | Open Filing | SCHEDULE 13G/A | 15 Feb 2023 | ||
| 4 | Open Document | Open Filing | 14 Dec 2022 | 13 Dec 2022 | 000-32917 | |
| 4 | Open Document | Open Filing | 09 Dec 2022 | 07 Dec 2022 | 000-32917 | |
| SC 13G/A | Open Document | Open Filing | SCHEDULE 13G/A | 21 Mar 2022 | ||
| 4 | Open Document | Open Filing | 17 Mar 2022 | 15 Mar 2022 | 000-32917 | |
| 4 | Open Document | Open Filing | 06 Aug 2021 | 04 Aug 2021 | 000-32917 | |
| SC 13G/A | Open Document | Open Filing | SCHEDULE 13G/A | 06 Aug 2021 | ||
| SC 13G/A | Open Document | Open Filing | SCHEDULE 13G/A | 06 Aug 2021 | ||
| 4 | Open Document | Open Filing | 15 Jun 2020 | 12 Jun 2020 | 000-32917 | |
| SC 13G/A | Open Document | Open Filing | SCHEDULE 13G/A | 31 Mar 2020 | ||
| 4/A | Open Document | Open Filing | 30 Mar 2020 | 26 Mar 2020 | 000-32917 | |
| 4 | Open Document | Open Filing | 27 Mar 2020 | 26 Mar 2020 | 000-32917 | |
| 4 | Open Document | Open Filing | 25 Nov 2019 | 15 Jul 2019 | 000-32917 | |
| SC 13G/A | Open Document | Open Filing | SCHEDULE 13G/A | 20 Feb 2019 | ||
| 4 | Open Document | Open Filing | FORM 4 | 13 Nov 2018 | 09 Nov 2018 | 000-32917 |
| SC 13G/A | Open Document | Open Filing | SCHEDULE 13G/A | 22 Jan 2018 | ||
| 3 | Open Document | Open Filing | FORM 3 | 19 Jan 2018 | 31 Dec 2017 | 000-32917 |
| SC 13G/A | Open Document | Open Filing | SCHEDULE 13G/A | 05 Jan 2017 | ||
| SC 13G | Open Document | Open Filing | SCHEDULE 13G | 22 Apr 2016 |