| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 27, 2022 | May 25, 2022 | 001-35005 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 24, 2021 | May 20, 2021 | 001-35005 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 15, 2020 | Jun 11, 2020 | 001-35005 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | May 17, 2019 | May 17, 2019 | 001-35005 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 1, 2018 | May 30, 2018 | 001-35005 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jun 5, 2017 | Jun 1, 2017 | 001-35005 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jun 3, 2016 | Jun 2, 2016 | 001-35005 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jun 1, 2015 | May 28, 2015 | 001-35005 |
| 4/A | Open Document | Open Filing | Oct 7, 2014 | Jul 10, 2014 | 001-35005 | |
| 4 | Open Document | Open Filing | Jul 14, 2014 | Jul 10, 2014 | 001-35005 | |
| 3 | Open Document | Open Filing | Jul 14, 2014 | Jul 11, 2014 | 001-35005 |