| 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 | Mar 28, 2022 | Mar 23, 2022 | 001-10299 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | Mar 25, 2022 | Mar 23, 2022 | 001-10299 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | Sep 20, 2021 | Sep 17, 2021 | 001-10299 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | Mar 30, 2021 | Mar 28, 2021 | 001-10299 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | Mar 26, 2021 | Mar 24, 2021 | 001-10299 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 30, 2020 | Mar 25, 2020 | 001-10299 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 29, 2019 | Mar 27, 2019 | 001-10299 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 19, 2018 | Sep 17, 2018 | 001-10299 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 19, 2018 | Sep 17, 2018 | 001-10299 |