| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 07 Oct 2021 | 05 Oct 2021 | 000-26427 |
| 4 | Open Document | Open Filing | FORM 4 | 15 Sep 2021 | 14 Sep 2021 | 000-26427 |
| 4 | Open Document | Open Filing | FORM 4 | 03 Aug 2021 | 30 Jul 2021 | 000-26427 |
| 4 | Open Document | Open Filing | FORM 4 | 02 Feb 2021 | 29 Jan 2021 | 000-26427 |
| 4 | Open Document | Open Filing | FORM 4 | 03 Sep 2020 | 01 Sep 2020 | 000-26427 |
| 4 | Open Document | Open Filing | FORM 4 | 04 Feb 2020 | 31 Jan 2020 | 000-26427 |
| 4 | Open Document | Open Filing | FORM 4 | 05 Jun 2019 | 03 Jun 2019 | 000-26427 |
| 4 | Open Document | Open Filing | FORM 4 | 04 Feb 2019 | 31 Jan 2019 | 000-26427 |
| 4 | Open Document | Open Filing | FORM 4 | 02 Aug 2018 | 31 Jul 2018 | 000-26427 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 Feb 2018 | 31 Jan 2018 | 000-26427 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 25 Oct 2017 | 23 Oct 2017 | 000-26427 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 Aug 2017 | 01 Aug 2017 | 000-26427 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 02 Aug 2017 | 31 Jul 2017 | 000-26427 |