| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Dec 30, 2022 | Dec 29, 2022 | 001-08966 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 5, 2022 | Dec 1, 2022 | 001-08966 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 12, 2022 | Oct 10, 2022 | 001-08966 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 6, 2022 | Sep 1, 2022 | 001-08966 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 3, 2022 | Jun 1, 2022 | 001-08966 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 14, 2022 | Mar 10, 2022 | 001-08966 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 3, 2022 | Mar 1, 2022 | 001-08966 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 6, 2022 | Jan 4, 2022 | 001-08966 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 5, 2022 | Jan 3, 2022 | 001-08966 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 3, 2021 | Dec 1, 2021 | 001-08966 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 12, 2021 | Oct 9, 2021 | 001-08966 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 2, 2021 | Sep 1, 2021 | 001-08966 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 3, 2021 | Jun 1, 2021 | 001-08966 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 11, 2021 | Mar 10, 2021 | 001-08966 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 9, 2021 | Mar 5, 2021 | 001-08966 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 3, 2021 | Mar 1, 2021 | 001-08966 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 6, 2021 | Jan 4, 2021 | 001-08966 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 10, 2020 | Dec 8, 2020 | 001-08966 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 3, 2020 | Dec 1, 2020 | 001-08966 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 13, 2020 | Oct 9, 2020 | 001-08966 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 2, 2020 | Sep 1, 2020 | 001-08966 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 3, 2020 | Jun 1, 2020 | 001-08966 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 12, 2020 | Mar 10, 2020 | 001-08966 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 9, 2020 | Mar 5, 2020 | 001-08966 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 4, 2020 | Mar 2, 2020 | 001-08966 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 6, 2020 | Jan 2, 2020 | 001-08966 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 4, 2019 | Dec 2, 2019 | 001-08966 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Oct 11, 2019 | Oct 9, 2019 | 000-08084 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 11, 2019 | Oct 9, 2019 | 001-08966 |
| 3 | Open Document | Open Filing | FORM 3 | Oct 10, 2019 | Oct 9, 2019 | 001-08966 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 11, 2019 | Mar 5, 2019 | 000-08084 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 12, 2017 | Dec 8, 2017 | 000-08084 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 18, 2017 | Aug 16, 2017 | 000-08084 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jan 25, 2016 | Jan 21, 2016 | 000-08084 |
| 4/A | Open Document | Open Filing | FORM 4/A SUBMISSION | Apr 1, 2015 | Mar 5, 2015 | 000-08084 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 6, 2015 | Mar 5, 2015 | 000-08084 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jan 23, 2015 | Jan 22, 2015 | 000-08084 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 13, 2014 | Mar 12, 2014 | 000-08084 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jan 24, 2014 | Jan 23, 2014 | 000-08084 |