| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | May 31, 2022 | May 26, 2022 | 001-33137 |
| 4 | Open Document | Open Filing | FORM 4 | May 24, 2021 | May 20, 2021 | 001-33137 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 12, 2020 | Aug 11, 2020 | 001-33137 |
| 4 | Open Document | Open Filing | FORM 4 | May 26, 2020 | May 21, 2020 | 001-33137 |
| 4 | Open Document | Open Filing | FORM 4 | May 13, 2020 | May 11, 2020 | 001-33137 |
| 4 | Open Document | Open Filing | FORM 4 | May 28, 2019 | May 23, 2019 | 001-33137 |
| 4 | Open Document | Open Filing | FORM 4 | Nov 8, 2018 | Nov 6, 2018 | 001-33137 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 12, 2018 | Jun 11, 2018 | 001-33137 |
| 4 | Open Document | Open Filing | FORM 4 | May 24, 2018 | May 24, 2018 | 001-33137 |
| 4 | Open Document | Open Filing | FORM 4 | Nov 9, 2017 | Nov 7, 2017 | 001-33137 |
| 4 | Open Document | Open Filing | FORM 4 | May 26, 2017 | May 25, 2017 | 001-33137 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 7, 2016 | Jun 6, 2016 | 001-33137 |
| 4 | Open Document | Open Filing | FORM 4 | May 23, 2016 | May 19, 2016 | 001-33137 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 14, 2015 | Aug 13, 2015 | 001-33137 |
| 4 | Open Document | Open Filing | FORM 4 | May 21, 2015 | May 21, 2015 | 001-33137 |
| 4 | Open Document | Open Filing | FORM 4 | May 23, 2014 | May 22, 2014 | 001-33137 |