| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 9, 2021 | Dec 7, 2021 | 001-16317 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 23, 2021 | Mar 19, 2021 | 001-16317 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 9, 2021 | Mar 8, 2021 | 001-16317 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 28, 2020 | Apr 26, 2020 | 001-16317 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 21, 2020 | Apr 18, 2020 | 001-16317 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 23, 2020 | Mar 19, 2020 | 001-16317 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 10, 2020 | Mar 8, 2020 | 001-16317 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Oct 31, 2019 | Oct 20, 2019 | 001-16317 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 29, 2019 | Apr 26, 2019 | 001-16317 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 22, 2019 | Apr 18, 2019 | 001-16317 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 26, 2019 | Mar 19, 2019 | 001-16317 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Mar 15, 2019 | Mar 15, 2019 | 001-16317 |