| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4/A | Open Document | Open Filing | FORM 4/A | May 5, 2022 | Apr 29, 2022 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 29, 2022 | Apr 27, 2022 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | Nov 29, 2021 | Nov 26, 2021 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | May 28, 2021 | May 26, 2021 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | May 28, 2020 | May 27, 2020 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | May 13, 2020 | May 12, 2020 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | May 13, 2020 | May 11, 2020 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | Jul 26, 2019 | Jul 24, 2019 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | Jul 2, 2018 | Jun 28, 2018 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 30, 2017 | Jun 28, 2017 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 24, 2016 | Jun 22, 2016 | 000-20288 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 26, 2015 | Jun 24, 2015 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 27, 2014 | Jun 25, 2014 | 000-20288 |