| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | May 18, 2023 | May 17, 2023 | 001-07259 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | Nov 8, 2022 | Oct 31, 2022 | 001-07259 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | May 20, 2022 | May 18, 2022 | 001-07259 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 20, 2021 | May 19, 2021 | 001-07259 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 22, 2020 | May 21, 2020 | 001-07259 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 16, 2019 | May 15, 2019 | 001-07259 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 25, 2019 | Feb 21, 2019 | 001-07259 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 18, 2018 | May 16, 2018 | 001-07259 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 23, 2018 | Feb 21, 2018 | 001-07259 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 2, 2018 | Jan 31, 2018 | 001-07259 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 19, 2017 | May 17, 2017 | 001-07259 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 16, 2017 | May 14, 2017 | 001-07259 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 23, 2017 | Feb 21, 2017 | 001-07259 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 3, 2017 | Feb 1, 2017 | 001-07259 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 17, 2016 | May 14, 2016 | 001-07259 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 23, 2016 | Feb 21, 2016 | 001-07259 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 29, 2016 | Jan 27, 2016 | 001-07259 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 19, 2015 | May 15, 2015 | 001-07259 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 18, 2015 | May 14, 2015 | 001-07259 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 30, 2015 | Jan 28, 2015 | 001-07259 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 27, 2015 | Jan 26, 2015 | 001-07259 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 27, 2015 | Jan 26, 2015 | 001-07259 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 13, 2014 | Nov 11, 2014 | 001-07259 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 13, 2014 | Nov 11, 2014 | 001-07259 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 4, 2014 | Aug 1, 2014 | 001-07259 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 4, 2014 | Aug 1, 2014 | 001-07259 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 22, 2014 | May 20, 2014 | 001-07259 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 22, 2014 | May 20, 2014 | 001-07259 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 22, 2014 | May 20, 2014 | 001-07259 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 20, 2014 | May 16, 2014 | 001-07259 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 19, 2014 | May 15, 2014 | 001-07259 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 16, 2014 | May 14, 2014 | 001-07259 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 1, 2014 | Apr 29, 2014 | 001-07259 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 1, 2014 | Apr 29, 2014 | 001-07259 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 29, 2014 | Jan 27, 2014 | 001-07259 |