| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | Apr 25, 2023 | Apr 21, 2023 | 001-12421 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | Feb 23, 2023 | Feb 22, 2023 | 001-12421 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | Feb 16, 2023 | Feb 15, 2023 | 001-12421 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | Apr 22, 2022 | Apr 21, 2022 | 001-12421 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | Mar 1, 2022 | Feb 25, 2022 | 001-12421 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 22, 2021 | Apr 21, 2021 | 001-12421 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 22, 2021 | Apr 21, 2021 | 001-12421 |