| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Oct 25, 2022 | Oct 24, 2022 | 000-06936 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 12, 2022 | Oct 10, 2022 | 000-06936 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 26, 2021 | Oct 22, 2021 | 000-06936 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 14, 2021 | Oct 12, 2021 | 000-06936 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 29, 2020 | Oct 27, 2020 | 000-06936 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 14, 2020 | Oct 12, 2020 | 000-06936 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 28, 2019 | Oct 24, 2019 | 000-06936 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 8, 2019 | Oct 7, 2019 | 000-06936 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 30, 2018 | Oct 26, 2018 | 000-06936 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 10, 2018 | Oct 8, 2018 | 000-06936 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 31, 2017 | Oct 27, 2017 | 000-06936 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 11, 2017 | Oct 9, 2017 | 000-06936 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 20, 2017 | Sep 18, 2017 | 000-06936 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 15, 2017 | Sep 14, 2017 | 000-06936 |
| 144 | Open Document | Open Filing | FORM 144 | Aug 10, 2017 | ||
| 4 | Open Document | Open Filing | FORM 4 | Jun 21, 2017 | Jun 19, 2017 | 000-06936 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 13, 2017 | Jun 9, 2017 | 000-06936 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 5, 2017 | Jun 2, 2017 | 000-06936 |
| 144 | Open Document | Open Filing | FORM 144 | May 8, 2017 | ||
| 4 | Open Document | Open Filing | FORM 4 | Oct 31, 2016 | Oct 28, 2016 | 000-06936 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 12, 2016 | Oct 10, 2016 | 000-06936 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 11, 2016 | Aug 10, 2016 | 000-06936 |
| 144 | Open Document | Open Filing | FORM 144 | Jul 25, 2016 | ||
| 4 | Open Document | Open Filing | FORM 4 | Feb 19, 2016 | Feb 19, 2016 | 000-06936 |
| 144 | Open Document | Open Filing | FORM 144 | Feb 12, 2016 | ||
| 4 | Open Document | Open Filing | FORM 4 | Feb 10, 2016 | Feb 10, 2016 | 000-06936 |
| 144 | Open Document | Open Filing | FORM 144 | Feb 3, 2016 | ||
| 4 | Open Document | Open Filing | FORM 4 | Feb 1, 2016 | Jan 29, 2016 | 000-06936 |
| 144 | Open Document | Open Filing | FORM 144 | Jan 14, 2016 | ||
| 4 | Open Document | Open Filing | FORM 4 | Oct 27, 2015 | Oct 23, 2015 | 000-06936 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 14, 2015 | Oct 12, 2015 | 000-06936 |
| 4 | Open Document | Open Filing | FORM 4 | Jul 21, 2015 | Jul 20, 2015 | 000-06936 |
| 144 | Open Document | Open Filing | FORM 144 | Jul 17, 2015 | ||
| 4 | Open Document | Open Filing | FORM 4 | Mar 26, 2015 | Mar 24, 2015 | 000-06936 |
| 144 | Open Document | Open Filing | FORM 144 | Feb 9, 2015 | ||
| 4 | Open Document | Open Filing | FORM 4 | Dec 4, 2014 | Dec 3, 2014 | 000-06936 |
| 144 | Open Document | Open Filing | FORM 144 | Nov 14, 2014 | ||
| 4 | Open Document | Open Filing | FORM 4 | Oct 28, 2014 | Oct 24, 2014 | 000-06936 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 15, 2014 | Oct 13, 2014 | 000-06936 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 14, 2014 | Oct 13, 2014 | 000-06936 |
| 144 | Open Document | Open Filing | FORM 144 | Aug 12, 2014 |