| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | May 1, 2025 | Apr 30, 2025 | 001-13221 |
| 4 | Open Document | Open Filing | 4 | Apr 26, 2024 | Apr 24, 2024 | 001-13221 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 28, 2023 | Apr 26, 2023 | 001-13221 |
| 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 | PRIMARY DOCUMENT | May 6, 2020 | May 4, 2020 | 001-06903 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 1, 2020 | Apr 29, 2020 | 001-13221 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 12, 2019 | Jun 10, 2019 | 001-13221 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 8, 2019 | May 6, 2019 | 001-06903 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 25, 2019 | Apr 24, 2019 | 001-13221 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 9, 2018 | May 7, 2018 | 001-06903 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 26, 2018 | Apr 25, 2018 | 001-13221 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 2, 2017 | May 1, 2017 | 001-06903 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 1, 2017 | Apr 27, 2017 | 001-13221 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 4, 2016 | May 2, 2016 | 001-06903 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 2, 2016 | Apr 28, 2016 | 001-13221 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Nov 20, 2015 | Nov 19, 2015 | 001-33662 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Nov 12, 2015 | Nov 10, 2015 | 001-33662 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 13, 2015 | Aug 11, 2015 | 001-33662 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 13, 2015 | May 12, 2015 | 001-33662 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 6, 2015 | May 4, 2015 | 001-06903 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 4, 2015 | Apr 30, 2015 | 001-13221 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 12, 2015 | Dec 31, 2014 | 001-06903 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 11, 2015 | Feb 10, 2015 | 001-33662 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 8, 2014 | Dec 4, 2014 | 001-33662 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Nov 12, 2014 | Nov 11, 2014 | 001-33662 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 13, 2014 | Aug 12, 2014 | 001-33662 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 14, 2014 | May 13, 2014 | 001-33662 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 6, 2014 | May 5, 2014 | 001-06903 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 25, 2014 | Apr 24, 2014 | 001-13221 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 12, 2014 | Feb 11, 2014 | 001-33662 |