| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 07 Jul 2021 | 03 Jul 2021 | 000-24960 |
| 4 | Open Document | Open Filing | FORM 4 | 08 Jun 2021 | 05 Jun 2021 | 000-24960 |
| 4 | Open Document | Open Filing | FORM 4 | 27 Jan 2021 | 25 Jan 2021 | 000-24960 |
| 4 | Open Document | Open Filing | FORM 4 | 02 Nov 2020 | 29 Oct 2020 | 000-24960 |
| 4 | Open Document | Open Filing | FORM 4 | 06 Jul 2020 | 02 Jul 2020 | 000-24960 |
| 4 | Open Document | Open Filing | FORM 4 | 09 Jun 2020 | 05 Jun 2020 | 000-24960 |
| 4 | Open Document | Open Filing | FORM 4 | 23 Sep 2019 | 19 Sep 2019 | 000-24960 |
| 4 | Open Document | Open Filing | FORM 4 | 10 Jul 2019 | 08 Jul 2019 | 000-24960 |
| 4 | Open Document | Open Filing | FORM 4 | 08 Jul 2019 | 03 Jul 2019 | 000-24960 |
| 4 | Open Document | Open Filing | FORM 4 | 06 Dec 2018 | 04 Dec 2018 | 000-24960 |
| 4 | Open Document | Open Filing | FORM 4 | 14 Nov 2018 | 12 Nov 2018 | 000-24960 |
| 3 | Open Document | Open Filing | FORM 3 | 23 Aug 2018 | 20 Aug 2018 | 000-24960 |