| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jun 22, 2022 | Jun 22, 2022 | 001-33346 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | May 21, 2021 | May 19, 2021 | 001-33346 |
| 4 | Open Document | Open Filing | 4 | Jul 9, 2020 | Jul 8, 2020 | 001-33346 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 10, 2020 | Mar 7, 2020 | 001-38506 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 6, 2020 | Jan 2, 2020 | 001-38506 |
| 4 | Open Document | Open Filing | 4 | Aug 15, 2019 | Aug 14, 2019 | 001-33346 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 12, 2019 | Aug 8, 2019 | 001-38506 |
| 4 | Open Document | Open Filing | 4 | May 13, 2019 | May 10, 2019 | 001-33346 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 11, 2019 | Mar 7, 2019 | 001-38506 |
| 4 | Open Document | Open Filing | 4 | Feb 26, 2019 | Feb 25, 2019 | 001-33346 |
| 4 | Open Document | Open Filing | 4 | Dec 6, 2018 | Dec 4, 2018 | 001-33346 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 31, 2018 | May 29, 2018 | 001-38506 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | May 24, 2018 | May 24, 2018 | 001-38506 |
| 4 | Open Document | Open Filing | 4 | May 17, 2018 | May 16, 2018 | 001-33346 |
| 4 | Open Document | Open Filing | 4 | May 4, 2018 | May 3, 2018 | 001-33346 |
| 4 | Open Document | Open Filing | 4 | Jun 16, 2017 | Jun 8, 2017 | 001-33346 |
| 4 | Open Document | Open Filing | 4 | May 24, 2017 | May 22, 2017 | 001-33346 |
| 4 | Open Document | Open Filing | 4 | Aug 5, 2016 | Aug 3, 2016 | 001-33346 |
| 4 | Open Document | Open Filing | 4 | May 9, 2016 | May 5, 2016 | 001-33346 |
| 4 | Open Document | Open Filing | 4 | Aug 6, 2015 | Aug 4, 2015 | 001-33346 |
| 3 | Open Document | Open Filing | 3 | May 7, 2015 | May 5, 2015 | 001-33346 |