| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 18, 2022 | Aug 16, 2022 | 000-19357 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 19, 2021 | Aug 17, 2021 | 000-19357 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 10, 2021 | Aug 6, 2021 | 000-19357 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 18, 2021 | Feb 23, 2021 | 000-19357 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 20, 2020 | Aug 18, 2020 | 000-19357 |
| 4 | Open Document | Open Filing | Nov 1, 2019 | Nov 1, 2019 | 001-38119 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 15, 2019 | Aug 13, 2019 | 000-19357 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 8, 2019 | Aug 6, 2019 | 000-19357 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 1, 2019 | Jul 30, 2019 | 000-19357 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Apr 9, 2019 | Apr 5, 2019 | 001-38119 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 26, 2019 | Feb 25, 2019 | 000-19357 |
| 3 | Open Document | Open Filing | Oct 23, 2018 | Oct 17, 2018 | 001-38119 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 16, 2018 | Aug 14, 2018 | 000-19357 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 7, 2018 | Aug 2, 2018 | 000-19357 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 1, 2018 | Jul 30, 2018 | 000-19357 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 16, 2017 | Aug 15, 2017 | 000-19357 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jul 28, 2017 | Jul 26, 2017 | 000-19357 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 10, 2016 | Aug 9, 2016 | 000-19357 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 1, 2016 | May 27, 2016 | 000-19357 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 27, 2016 | May 24, 2016 | 000-19357 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 5, 2015 | Aug 4, 2015 | 000-19357 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 8, 2015 | Nov 2, 2012 | 000-19357 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 6, 2014 | Aug 5, 2014 | 000-19357 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 1, 2014 | Jul 30, 2014 | 000-19357 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 26, 2014 | Feb 24, 2014 | 000-19357 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 20, 2014 | Feb 19, 2014 | 000-19357 |