| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 8, 2022 | Mar 7, 2022 | 000-11634 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Sep 9, 2021 | Sep 7, 2021 | 000-11634 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Sep 3, 2021 | Sep 1, 2021 | 000-11634 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 25, 2021 | May 21, 2021 | 000-11634 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 15, 2021 | Mar 12, 2021 | 000-11634 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Nov 23, 2020 | Nov 19, 2020 | 000-11634 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 17, 2020 | Jun 15, 2020 | 000-11634 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 12, 2020 | Jun 10, 2020 | 000-11634 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 24, 2020 | Mar 20, 2020 | 000-11634 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 6, 2019 | Dec 4, 2019 | 000-11634 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 15, 2019 | Mar 14, 2019 | 000-11634 |
| 4/A | Open Document | Open Filing | FORM 4/A SUBMISSION | Jun 15, 2018 | Jun 14, 2018 | 000-11634 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 14, 2018 | Jun 14, 2018 | 000-11634 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 19, 2018 | Mar 15, 2018 | 000-11634 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 21, 2017 | Mar 21, 2017 | 000-11634 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 9, 2016 | Dec 8, 2016 | 000-11634 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 1, 2016 | Mar 18, 2016 | 000-11634 |
| 3 | Open Document | Open Filing | FORM 3 APRIL 2015 | May 1, 2015 | Apr 29, 2015 | 000-11634 |