| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Dec 22, 2021 | Dec 20, 2021 | 001-37511 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 17, 2021 | Dec 15, 2021 | 001-37511 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 24, 2021 | Sep 22, 2021 | 001-37511 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 21, 2021 | Sep 20, 2021 | 001-37511 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 17, 2021 | Sep 15, 2021 | 001-37511 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 22, 2021 | Jun 18, 2021 | 001-37511 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 17, 2021 | Jun 15, 2021 | 001-37511 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 7, 2021 | Apr 5, 2021 | 001-37511 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 22, 2021 | Mar 18, 2021 | 001-37511 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 17, 2021 | Mar 15, 2021 | 001-37511 |
| 4/A | Open Document | Open Filing | FORM 4/A | Mar 17, 2021 | Mar 4, 2021 | 001-37511 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 8, 2021 | Mar 4, 2021 | 001-37511 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 8, 2021 | Jan 6, 2021 | 001-37511 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 21, 2020 | Dec 17, 2020 | 001-37511 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 16, 2020 | Dec 14, 2020 | 001-37511 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 21, 2020 | Sep 18, 2020 | 001-37511 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 17, 2020 | Sep 15, 2020 | 001-37511 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 19, 2020 | Jun 18, 2020 | 001-37511 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 17, 2020 | Jun 15, 2020 | 001-37511 |
| 4 | Open Document | Open Filing | FORM 4 | May 15, 2020 | May 13, 2020 | 001-37511 |
| 4 | Open Document | Open Filing | FORM 4 | May 12, 2020 | May 8, 2020 | 001-37511 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 1, 2020 | Mar 30, 2020 | 001-37511 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 19, 2020 | Mar 17, 2020 | 001-37511 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 18, 2019 | Dec 16, 2019 | 001-37511 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 1, 2019 | Dec 15, 2018 | 001-37511 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 18, 2019 | Sep 18, 2019 | 001-37511 |
| 4 | Open Document | Open Filing | FORM 4 | Jul 22, 2019 | Jul 18, 2019 | 001-37511 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 15, 2019 | Mar 14, 2019 | 001-37511 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 15, 2017 | Dec 15, 2017 | 001-37511 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Dec 15, 2017 | Dec 6, 2017 | 001-37511 |