| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Aug 6, 2021 | Aug 5, 2021 | 001-34666 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 4, 2021 | Jun 2, 2021 | 001-34666 |
| 4 | Open Document | Open Filing | FORM 4 | May 13, 2021 | May 12, 2021 | 001-34666 |
| 4 | Open Document | Open Filing | FORM 4 | Nov 18, 2020 | Nov 17, 2020 | 001-34666 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 11, 2020 | Sep 10, 2020 | 001-34666 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 10, 2020 | Jun 8, 2020 | 001-34666 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 13, 2020 | Feb 13, 2020 | 001-34666 |
| 4 | Open Document | Open Filing | FORM 4 | May 10, 2019 | May 9, 2019 | 001-34666 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 1, 2019 | Feb 28, 2019 | 001-34666 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 14, 2019 | Jan 10, 2019 | 001-34666 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 30, 2018 | May 25, 2018 | 001-34666 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 25, 2017 | May 24, 2017 | 001-34666 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 19, 2017 | May 18, 2017 | 001-34666 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 30, 2017 | Mar 29, 2017 | 001-34666 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 3, 2016 | Jun 1, 2016 | 001-34666 |
| 4 | Open Document | Open Filing | SCHROCK FORM 4 (05-19-2015) | May 20, 2015 | May 19, 2015 | 001-34666 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 19, 2014 | Nov 17, 2014 | 000-12695 |
| 4 | Open Document | Open Filing | SCHROCK FORM 4 (05-20-2014) | May 22, 2014 | May 20, 2014 | 001-34666 |