| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Feb 27, 2024 | Feb 23, 2024 | 001-35518 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Feb 26, 2024 | Feb 22, 2024 | 001-35518 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Feb 27, 2023 | Feb 23, 2023 | 001-35518 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Feb 24, 2023 | Feb 22, 2023 | 001-35518 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Feb 24, 2022 | Feb 22, 2022 | 001-35518 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Feb 23, 2022 | Feb 19, 2022 | 001-35518 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Aug 12, 2021 | Aug 11, 2021 | 001-35518 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Feb 23, 2021 | Feb 19, 2021 | 001-35518 |
| 4 | Open Document | Open Filing | 4 | Feb 25, 2020 | Feb 21, 2020 | 001-35518 |
| 4 | Open Document | Open Filing | 4 | Jun 24, 2019 | Jun 20, 2019 | 001-35518 |
| 4 | Open Document | Open Filing | 4 | Apr 29, 2019 | Apr 25, 2019 | 001-35518 |
| 4/A | Open Document | Open Filing | 4/A | Mar 4, 2019 | Feb 22, 2019 | 001-35518 |
| 4 | Open Document | Open Filing | 4 | Mar 4, 2019 | Aug 20, 2018 | 001-35518 |
| 4 | Open Document | Open Filing | 4 | Feb 26, 2019 | Feb 22, 2019 | 001-35518 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 26, 2018 | Mar 22, 2018 | 001-36480 |
| 4 | Open Document | Open Filing | 4 | Feb 27, 2018 | Feb 23, 2018 | 001-35518 |
| 4 | Open Document | Open Filing | 4 | Jun 15, 2017 | Jun 13, 2017 | 001-35518 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 5, 2017 | Jun 1, 2017 | 001-36480 |
| 4 | Open Document | Open Filing | 4 | Feb 27, 2017 | Feb 24, 2017 | 001-35518 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 13, 2016 | Jun 9, 2016 | 001-36480 |
| 4 | Open Document | Open Filing | 4 | Mar 3, 2016 | Mar 1, 2016 | 001-35518 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Nov 16, 2015 | Nov 12, 2015 | 001-36480 |
| 4 | Open Document | Open Filing | 4 | Mar 5, 2015 | Mar 3, 2015 | 001-35518 |
| 4 | Open Document | Open Filing | 4 | Jan 13, 2015 | Dec 16, 2014 | 001-35518 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 22, 2014 | Apr 18, 2014 | 000-28402 |
| 4 | Open Document | Open Filing | 4 | Jan 23, 2014 | Dec 12, 2013 | 001-35518 |