| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | May 1, 2023 | Oct 8, 2021 | 001-35569 | |
| 4 | Open Document | Open Filing | FORM 4 | Mar 15, 2022 | Mar 11, 2022 | 001-35569 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 18, 2021 | Mar 15, 2021 | 001-35569 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 26, 2021 | Oct 8, 2019 | 001-35569 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 18, 2020 | Mar 16, 2020 | 001-35569 |
| 4 | Open Document | Open Filing | FORM 4 | May 24, 2019 | May 22, 2019 | 001-35569 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 10, 2018 | Oct 8, 2018 | 001-35569 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 15, 2018 | Jun 13, 2018 | 001-35569 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 18, 2018 | Jan 16, 2018 | 001-35569 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 17, 2017 | Mar 15, 2017 | 001-35569 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 16, 2017 | Feb 14, 2017 | 001-35569 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 2, 2016 | May 31, 2016 | 001-35569 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 14, 2016 | Mar 11, 2016 | 001-35569 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 14, 2016 | Mar 11, 2016 | 001-35569 |
| 4 | Open Document | Open Filing | FORM 4 | May 29, 2015 | May 29, 2015 | 001-35569 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 13, 2015 | Feb 12, 2015 | 001-35569 |
| 4 | Open Document | Open Filing | FORM 4 | May 2, 2014 | Apr 30, 2014 | 001-35569 |
| 4/A | Open Document | Open Filing | FORM 4/A | Feb 3, 2014 | Dec 5, 2013 | 001-35569 |