| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 29, 2022 | Apr 27, 2022 | 001-13221 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 29, 2021 | Apr 28, 2021 | 001-13221 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 1, 2020 | Apr 29, 2020 | 001-13221 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Sep 9, 2019 | Sep 6, 2019 | 001-13221 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 25, 2019 | Apr 24, 2019 | 001-13221 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 26, 2018 | Apr 25, 2018 | 001-13221 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 1, 2017 | Apr 27, 2017 | 001-13221 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 2, 2016 | Apr 28, 2016 | 001-13221 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 4, 2015 | Apr 30, 2015 | 001-13221 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 25, 2014 | Apr 24, 2014 | 001-13221 |