| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 - | 25 May 2021 | 25 May 2021 | 001-08931 |
| 4 | Open Document | Open Filing | FORM 4 - | 02 Feb 2021 | 29 Jan 2021 | 001-08931 |
| 4 | Open Document | Open Filing | FORM 4 - | 01 Dec 2020 | 27 Nov 2020 | 001-08931 |
| 4/A | Open Document | Open Filing | FORM 4/A - | 06 Oct 2020 | 01 Oct 2020 | 001-08931 |
| 4 | Open Document | Open Filing | FORM 4 - | 05 Oct 2020 | 01 Oct 2020 | 001-08931 |
| 4 | Open Document | Open Filing | FORM 4 - | 18 May 2020 | 14 May 2020 | 001-08931 |
| 4 | Open Document | Open Filing | FORM 4 - | 29 Apr 2020 | 27 Apr 2020 | 001-08931 |
| 3 | Open Document | Open Filing | FORM 3 - | 29 Apr 2020 | 27 Apr 2020 | 001-08931 |