| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | Feb 1, 2022 | Jan 30, 2022 | 001-08339 | |
| 4 | Open Document | Open Filing | Jan 31, 2022 | Jan 27, 2022 | 001-08339 | |
| 4 | Open Document | Open Filing | Feb 1, 2021 | Jan 28, 2021 | 001-08339 | |
| 4 | Open Document | Open Filing | Sep 3, 2020 | Sep 1, 2020 | 001-08339 | |
| 3 | Open Document | Open Filing | Sep 1, 2020 | Sep 1, 2020 | 001-08339 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Nov 17, 2017 | Jul 27, 2017 | 001-08022 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 9, 2017 | May 5, 2017 | 001-08022 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 7, 2017 | Feb 22, 2017 | 001-08022 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jan 20, 2017 | Jan 18, 2017 | 001-08022 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 10, 2016 | May 6, 2016 | 001-08022 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 6, 2016 | Apr 5, 2016 | 001-08022 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 12, 2016 | Feb 10, 2016 | 001-08022 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jan 15, 2016 | Jan 13, 2016 | 001-08022 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 11, 2015 | May 7, 2015 | 001-08022 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 13, 2015 | Feb 11, 2015 | 001-08022 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Feb 13, 2015 | Feb 11, 2015 | 001-08022 |