| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 22 Feb 2022 | 17 Feb 2022 | 000-24260 |
| 4 | Open Document | Open Filing | FORM 4 | 29 Jul 2021 | 27 Jul 2021 | 000-24260 |
| 4 | Open Document | Open Filing | FORM 4 | 23 Feb 2021 | 20 Feb 2021 | 000-24260 |
| 4 | Open Document | Open Filing | FORM 4 | 19 Feb 2021 | 17 Feb 2021 | 000-24260 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 04 Sep 2020 | 02 Sep 2020 | 000-24260 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 31 Jul 2020 | 30 Jul 2020 | 000-24260 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 29 Jul 2020 | 27 Jul 2020 | 000-24260 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 23 Jun 2020 | 19 Jun 2020 | 000-24260 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 24 Feb 2020 | 20 Feb 2020 | 000-24260 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 14 Feb 2020 | 12 Feb 2020 | 000-24260 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 13 Aug 2019 | 09 Aug 2019 | 000-24260 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 30 Jul 2019 | 27 Jul 2019 | 000-24260 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 22 Feb 2019 | 20 Feb 2019 | 000-24260 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 31 Jul 2018 | 27 Jul 2018 | 000-24260 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 21 Jun 2018 | 11 Jun 2018 | 000-24260 |