| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Jul 15, 2021 | Jul 14, 2021 | 000-30109 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 17, 2021 | Mar 12, 2021 | 000-30109 |
| 4 | Open Document | Open Filing | FORM 4 | Jul 20, 2020 | Jul 17, 2020 | 000-30109 |
| 4 | Open Document | Open Filing | FORM 4 | Jul 17, 2020 | Jul 15, 2020 | 000-30109 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 13, 2020 | Mar 11, 2020 | 000-30109 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 21, 2020 | Feb 20, 2020 | 000-30109 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 14, 2019 | Mar 11, 2019 | 000-30109 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 1, 2018 | May 31, 2018 | 000-30109 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 15, 2018 | Mar 11, 2018 | 000-30109 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 12, 2018 | Mar 8, 2018 | 000-30109 |
| 3 | Open Document | Open Filing | FORM 3 | Feb 23, 2018 | Feb 23, 2018 | 000-30109 |