| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | May 24, 2021 | May 24, 2021 | 001-36230 |
| 4 | Open Document | Open Filing | FORM 4 | May 22, 2020 | May 21, 2020 | 001-36230 |
| 4 | Open Document | Open Filing | FORM 4 | May 17, 2019 | May 15, 2019 | 001-36230 |
| 4 | Open Document | Open Filing | FORM 4 | May 22, 2018 | May 18, 2018 | 001-36230 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 9, 2017 | Aug 7, 2017 | 001-36230 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 6, 2016 | Jun 2, 2016 | 001-36230 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 5, 2016 | Apr 1, 2016 | 001-36230 |
| 3 | Open Document | Open Filing | FORM 3 | Apr 5, 2016 | Apr 1, 2016 | 001-36230 |