| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 23 Dec 2021 | 17 Nov 2021 | 001-08604 |
| 4/A | Open Document | Open Filing | FORM 4/A | 22 Nov 2021 | 15 Nov 2021 | 001-08604 |
| 4 | Open Document | Open Filing | FORM 4 | 17 Nov 2021 | 15 Nov 2021 | 001-08604 |
| 4 | Open Document | Open Filing | FORM 4 | 17 Mar 2021 | 15 Mar 2021 | 001-08604 |
| 3 | Open Document | Open Filing | FORM 3 | 28 Jan 2021 | 18 Jan 2021 | 001-08604 |