| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 - | Jun 3, 2021 | Jun 2, 2021 | 000-23211 |
| 4 | Open Document | Open Filing | FORM 4 - | Aug 24, 2020 | Aug 21, 2020 | 000-23211 |
| 4 | Open Document | Open Filing | FORM 4 - | Jun 4, 2020 | Jun 2, 2020 | 000-23211 |
| 4 | Open Document | Open Filing | FORM 4 - | May 19, 2020 | May 18, 2020 | 000-23211 |
| 4 | Open Document | Open Filing | FORM 4 - | Nov 7, 2019 | Nov 6, 2019 | 000-23211 |
| 4 | Open Document | Open Filing | FORM 4 - | Aug 14, 2019 | Aug 12, 2019 | 000-23211 |
| 4 | Open Document | Open Filing | FORM 4 - | Jun 5, 2019 | Jun 4, 2019 | 000-23211 |
| 4 | Open Document | Open Filing | FORM 4 - | May 24, 2019 | May 23, 2019 | 000-23211 |
| 4/A | Open Document | Open Filing | FORM 4/A - | Mar 28, 2019 | Mar 12, 2019 | 000-23211 |
| 4 | Open Document | Open Filing | FORM 4 - | Mar 14, 2019 | Mar 12, 2019 | 000-23211 |
| 4 | Open Document | Open Filing | FORM 4 - | Aug 22, 2018 | Aug 20, 2018 | 000-23211 |
| 4 | Open Document | Open Filing | FORM 4 - | Jun 4, 2018 | Jun 1, 2018 | 000-23211 |
| 4/A | Open Document | Open Filing | FORM 4/A - | Apr 2, 2018 | Dec 13, 2017 | 000-23211 |
| 4 | Open Document | Open Filing | FORM 4 - | Dec 14, 2017 | Dec 13, 2017 | 000-23211 |
| 4 | Open Document | Open Filing | FORM 4 - | Jun 7, 2017 | Jun 6, 2017 | 000-23211 |
| 4/A | Open Document | Open Filing | FORM 4/A - | Mar 23, 2017 | Mar 16, 2017 | 000-23211 |
| 4 | Open Document | Open Filing | FORM 4 - | Mar 17, 2017 | Mar 16, 2017 | 000-23211 |
| 4 | Open Document | Open Filing | FORM 4 - | Nov 18, 2016 | Nov 17, 2016 | 000-23211 |
| 4 | Open Document | Open Filing | FORM 4 - | Nov 25, 2015 | Nov 19, 2015 | 000-23211 |
| 4 | Open Document | Open Filing | FORM 4 - | Nov 9, 2015 | Nov 6, 2015 | 000-23211 |
| 4 | Open Document | Open Filing | FORM 4 - | Oct 14, 2014 | Oct 7, 2014 | 000-23211 |
| 4 | Open Document | Open Filing | FORM 4 - | Oct 14, 2014 | Oct 7, 2014 | 000-23211 |
| 4 | Open Document | Open Filing | FORM 4 - | Oct 14, 2014 | Oct 7, 2014 | 000-23211 |
| 4 | Open Document | Open Filing | FORM 4 - | Oct 14, 2014 | Oct 7, 2014 | 000-23211 |
| 4 | Open Document | Open Filing | FORM 4 - | Oct 14, 2014 | Oct 7, 2014 | 000-23211 |