| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Apr 29, 2022 | Apr 27, 2022 | 001-08966 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 30, 2021 | Apr 28, 2021 | 001-08966 |
| 4 | Open Document | Open Filing | FORM 4 | May 1, 2020 | Apr 29, 2020 | 001-08966 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 25, 2019 | Apr 24, 2019 | 001-08966 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 27, 2018 | Apr 25, 2018 | 001-08966 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 27, 2017 | Apr 26, 2017 | 001-08966 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 28, 2016 | Apr 27, 2016 | 001-08966 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Nov 12, 2015 | Nov 11, 2015 | 001-08966 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 30, 2015 | Apr 29, 2015 | 001-08966 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 27, 2014 | Aug 26, 2014 | 001-08966 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 1, 2014 | Apr 30, 2014 | 001-08966 |