| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Mar 17, 2022 | Mar 15, 2022 | 001-33764 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 23, 2021 | Sep 22, 2021 | 001-33764 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 7, 2021 | Jun 3, 2021 | 001-33764 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 29, 2021 | Mar 25, 2021 | 001-33764 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 17, 2021 | Mar 15, 2021 | 001-33764 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 10, 2020 | Jun 9, 2020 | 001-33764 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 31, 2020 | Mar 27, 2020 | 001-33764 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 17, 2020 | Mar 15, 2020 | 001-33764 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 19, 2019 | Dec 18, 2019 | 001-33764 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 2, 2019 | Mar 29, 2019 | 001-33764 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 21, 2019 | Mar 19, 2019 | 001-33764 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 19, 2019 | Mar 15, 2019 | 001-33764 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 13, 2018 | Jun 11, 2018 | 001-33764 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 2, 2018 | Mar 29, 2018 | 001-33764 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 19, 2018 | Mar 15, 2018 | 001-33764 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 28, 2017 | Mar 24, 2017 | 001-33764 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 17, 2017 | Mar 16, 2017 | 001-33764 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 29, 2016 | Mar 25, 2016 | 001-33764 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 24, 2016 | Mar 19, 2016 | 001-33764 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 3, 2015 | Apr 1, 2015 | 001-33764 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 31, 2015 | Mar 27, 2015 | 001-33764 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Sep 23, 2014 | Sep 19, 2014 | 001-33764 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 2, 2014 | Apr 1, 2014 | 001-33764 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 1, 2014 | Mar 28, 2014 | 001-33764 |