| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Jun 29, 2022 | Jun 28, 2022 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | May 11, 2022 | May 10, 2022 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 13, 2022 | Apr 11, 2022 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 23, 2022 | Mar 22, 2022 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 3, 2022 | Mar 1, 2022 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 4, 2022 | Dec 31, 2021 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | Nov 12, 2021 | Feb 3, 2021 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 10, 2021 | Sep 9, 2021 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 26, 2021 | Aug 24, 2021 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 16, 2021 | Jun 15, 2021 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | May 12, 2021 | May 11, 2021 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 13, 2021 | Apr 9, 2021 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 24, 2021 | Mar 22, 2021 | 000-19364 |
| 4/A | Open Document | Open Filing | FORM 4/A | Mar 15, 2021 | Mar 9, 2021 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 10, 2021 | Mar 9, 2021 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | Nov 12, 2020 | Nov 10, 2020 | 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 16, 2020 | Jun 15, 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 | Apr 10, 2020 | Apr 9, 2020 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 11, 2020 | Mar 9, 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 | Jun 17, 2019 | Jun 14, 2019 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | May 7, 2019 | Apr 11, 2019 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 18, 2018 | Jun 15, 2018 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 19, 2017 | Jun 12, 2017 | 000-49885 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 16, 2017 | Jun 15, 2017 | 000-19364 |
| 3 | Open Document | Open Filing | FORM 3 | Jun 16, 2017 | Jun 15, 2017 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 5, 2017 | Jun 1, 2017 | 000-49885 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 9, 2017 | Feb 28, 2017 | 000-49885 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 8, 2016 | Nov 30, 2016 | 000-49885 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Sep 12, 2016 | Aug 31, 2016 | 000-49885 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 8, 2016 | May 31, 2016 | 000-49885 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 6, 2016 | Jun 4, 2016 | 000-49885 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 2, 2016 | Jun 1, 2016 | 000-49885 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 5, 2016 | Feb 29, 2016 | 000-49885 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 15, 2015 | Nov 30, 2015 | 000-49885 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 16, 2015 | Aug 31, 2015 | 000-49885 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 16, 2015 | May 30, 2015 | 000-49885 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 15, 2015 | May 31, 2015 | 000-49885 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 8, 2015 | Jun 4, 2015 | 000-49885 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 11, 2015 | Feb 28, 2015 | 000-49885 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 12, 2014 | Nov 28, 2014 | 000-49885 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 3, 2014 | Jun 8, 2009 | 000-49885 |