| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jan 19, 2022 | Jan 17, 2022 | 000-51237 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 17, 2021 | Feb 15, 2021 | 000-51237 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Feb 17, 2021 | Feb 15, 2021 | 000-51237 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 30, 2019 | May 22, 2019 | 001-34734 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 29, 2019 | May 15, 2019 | 001-34734 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 10, 2019 | Apr 8, 2019 | 001-34734 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 25, 2019 | Mar 21, 2019 | 001-34734 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 19, 2019 | Feb 15, 2019 | 001-34734 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Nov 13, 2018 | Nov 9, 2018 | 001-34734 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jul 11, 2018 | Jul 9, 2018 | 001-34734 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 25, 2017 | May 22, 2017 | 001-34734 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | May 25, 2017 | May 22, 2017 | 001-34734 |