| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Jun 29, 2022 | May 31, 2020 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | Nov 17, 2021 | Nov 16, 2021 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | May 21, 2021 | May 20, 2021 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 25, 2020 | Aug 24, 2020 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 4, 2020 | Jun 3, 2020 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 2, 2020 | May 29, 2020 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | May 26, 2020 | May 21, 2020 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | May 13, 2020 | May 11, 2020 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 17, 2020 | Mar 13, 2020 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 28, 2020 | Feb 26, 2020 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | May 28, 2019 | May 23, 2019 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 22, 2019 | Mar 20, 2019 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | May 25, 2018 | May 24, 2018 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | May 30, 2017 | May 25, 2017 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | Nov 7, 2016 | Nov 4, 2016 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | May 31, 2016 | May 26, 2016 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | Nov 4, 2015 | Nov 3, 2015 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | May 20, 2015 | May 19, 2015 | 000-19364 |
| 3 | Open Document | Open Filing | FORM 3 | May 20, 2015 | May 19, 2015 | 000-19364 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 24, 2014 | Nov 20, 2014 | 001-35792 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 13, 2014 | Jun 11, 2014 | 001-35792 |