| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Mar 23, 2022 | Mar 21, 2022 | 001-32414 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Mar 10, 2022 | Mar 8, 2022 | 001-32414 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jan 4, 2022 | Jan 1, 2022 | 001-32414 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Dec 22, 2021 | Dec 15, 2021 | 001-32414 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 30, 2021 | Jun 28, 2021 | 001-32414 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 17, 2020 | Dec 15, 2020 | 001-32414 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 13, 2020 | Apr 13, 2020 | 001-32414 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 18, 2019 | Dec 16, 2019 | 001-32414 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 8, 2019 | Aug 8, 2019 | 001-32414 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 6, 2019 | Aug 6, 2019 | 001-32414 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 15, 2019 | Mar 15, 2019 | 001-32414 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 19, 2018 | Dec 19, 2018 | 001-32414 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Apr 13, 2017 | Apr 7, 2017 | 001-32414 |