| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 03 Aug 2021 | 30 Jul 2021 | 001-06770 |
| 4 | Open Document | Open Filing | FORM 4 | 24 Feb 2021 | 24 Feb 2021 | 001-06770 |
| 4 | Open Document | Open Filing | FORM 4 | 07 Aug 2020 | 07 Aug 2020 | 001-06770 |
| 4 | Open Document | Open Filing | FORM 4 | 09 Aug 2019 | 08 Aug 2019 | 001-06770 |
| 3 | Open Document | Open Filing | FORM 3 | 03 May 2019 | 03 May 2019 | 001-06770 |