| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Jun 2, 2021 | Jun 1, 2021 | 001-35397 |
| 4 | Open Document | Open Filing | FORM 4 | May 28, 2021 | May 26, 2021 | 001-35397 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 26, 2021 | Mar 24, 2021 | 001-35397 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 12, 2021 | Mar 11, 2021 | 001-35397 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 2, 2021 | Feb 28, 2021 | 001-35397 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 3, 2020 | Sep 2, 2020 | 001-35397 |
| 4 | Open Document | Open Filing | FORM 4 | May 13, 2020 | May 11, 2020 | 001-35397 |
| 4/A | Open Document | Open Filing | FORM 4/A | Apr 1, 2020 | Mar 24, 2020 | 001-35397 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 26, 2020 | Mar 24, 2020 | 001-35397 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 12, 2020 | Mar 10, 2020 | 001-35397 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 29, 2019 | Mar 28, 2019 | 001-35397 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 26, 2019 | Mar 24, 2019 | 001-35397 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 17, 2018 | Dec 14, 2018 | 001-35397 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 14, 2018 | Jun 12, 2018 | 001-35397 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 26, 2018 | Mar 24, 2018 | 001-35397 |
| 4/A | Open Document | Open Filing | FORM 4/A | Mar 7, 2018 | Feb 28, 2018 | 001-35397 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 2, 2018 | Feb 28, 2018 | 001-35397 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 11, 2017 | Aug 8, 2017 | 001-35397 |
| 4 | Open Document | Open Filing | FORM 4 | May 19, 2017 | May 18, 2017 | 001-35397 |
| 4 | Open Document | Open Filing | FORM 4 | May 15, 2017 | May 11, 2017 | 001-35397 |
| 4/A | Open Document | Open Filing | FORM 4/A SUBMISSION | Jan 26, 2017 | Apr 22, 2016 | 001-35397 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 25, 2016 | Apr 22, 2016 | 001-35397 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 30, 2016 | Mar 28, 2016 | 001-35397 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 8, 2015 | Mar 24, 2015 | 001-35397 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 26, 2014 | Mar 24, 2014 | 001-35397 |