| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | Jun 16, 2025 | Jun 10, 2025 | 001-40766 | |
| 4 | Open Document | Open Filing | Jan 17, 2025 | Jan 17, 2025 | 001-40766 | |
| 3 | Open Document | Open Filing | Dec 16, 2024 | Dec 10, 2024 | 001-40766 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jan 20, 2022 | Jan 18, 2022 | 001-40766 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Dec 29, 2021 | Dec 27, 2021 | 001-40766 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Dec 27, 2021 | Dec 22, 2021 | 001-40766 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Nov 23, 2021 | Nov 19, 2021 | 001-40766 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jan 19, 2021 | Jan 14, 2021 | 000-52567 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jan 16, 2020 | Jan 14, 2020 | 000-52567 |
| 4 | Open Document | Open Filing | RSU VEST | Sep 23, 2019 | Sep 21, 2019 | 001-37525 |
| 4 | Open Document | Open Filing | RSU VEST | Jun 21, 2019 | Jun 21, 2019 | 001-37525 |
| 4 | Open Document | Open Filing | RSU VEST | Apr 10, 2019 | Apr 9, 2019 | 001-37525 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Apr 9, 2019 | Jan 14, 2019 | 000-52567 |
| 4 | Open Document | Open Filing | GRANT | Mar 25, 2019 | Mar 21, 2019 | 001-37525 |
| 5 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jan 17, 2019 | Dec 31, 2018 | 000-52567 |
| 4 | Open Document | Open Filing | RSU VEST | Jan 11, 2019 | Jan 9, 2019 | 001-37525 |
| 4 | Open Document | Open Filing | RSU VEST | Oct 11, 2018 | Oct 9, 2018 | 001-37525 |
| 4 | Open Document | Open Filing | RSU VEST | Jul 9, 2018 | Jul 9, 2018 | 001-37525 |
| 4 | Open Document | Open Filing | FORM 4 | May 9, 2018 | May 8, 2018 | 001-37525 |
| 4 | Open Document | Open Filing | GRANT AND VEST | Apr 11, 2018 | Apr 9, 2018 | 001-37525 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jan 25, 2018 | Jan 23, 2018 | 000-52567 |
| 4 | Open Document | Open Filing | RSU VEST | Jan 10, 2018 | Jan 10, 2018 | 001-37525 |
| 4 | Open Document | Open Filing | RSU VEST | Oct 10, 2017 | Oct 10, 2017 | 001-37525 |
| 4 | Open Document | Open Filing | RSU VEST | Jul 11, 2017 | Jul 10, 2017 | 001-37525 |
| 4 | Open Document | Open Filing | GRANT_ZELIBOR | Apr 12, 2017 | Apr 10, 2017 | 001-37525 |
| 4 | Open Document | Open Filing | RSU VEST | Apr 11, 2017 | Apr 7, 2017 | 001-37525 |
| 4 | Open Document | Open Filing | FORM 4 ZELIBOR 1-7-17 VEST | Jan 10, 2017 | Jan 7, 2017 | 001-37525 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Dec 27, 2016 | Dec 21, 2016 | 000-52567 |
| 4 | Open Document | Open Filing | FORM 4 - RSU VEST | Oct 11, 2016 | Oct 7, 2016 | 001-37525 |
| 4 | Open Document | Open Filing | FORM 4 - RSU VESTING - ZELIBOR | Jul 11, 2016 | Jul 7, 2016 | 001-37525 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 12, 2016 | Apr 8, 2016 | 001-37525 |
| 3 | Open Document | Open Filing | FORM 3 - ZELIBOR - DIRECTOR | Mar 14, 2016 | Mar 14, 2016 | 001-37525 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Nov 13, 2015 | Nov 11, 2015 | 000-52567 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jul 2, 2015 | Jul 1, 2015 | 000-52567 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jun 24, 2014 | Jun 24, 2014 | 000-52567 |
| 4/A | Open Document | Open Filing | OWNERSHIP DOCUMENT | May 16, 2014 | Mar 3, 2014 | 000-52567 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Mar 5, 2014 | Mar 3, 2014 | 000-52567 |