| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Jul 2, 2025 | Jul 1, 2025 | 000-21044 |
| 4 | Open Document | Open Filing | FORM 4 | May 5, 2025 | May 2, 2025 | 000-21044 |
| 3 | Open Document | Open Filing | FORM 3 | May 5, 2025 | May 2, 2025 | 000-21044 |
| 4 | Open Document | Open Filing | FORM 4 | May 31, 2023 | Feb 19, 2023 | 000-23081 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 3, 2023 | Mar 1, 2023 | 000-23081 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 21, 2022 | Jun 17, 2022 | 000-23081 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 15, 2022 | Mar 14, 2022 | 000-23081 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 22, 2022 | Feb 19, 2022 | 000-23081 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 22, 2022 | Feb 21, 2022 | 000-23081 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 21, 2021 | Jun 17, 2021 | 000-23081 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 23, 2021 | Feb 21, 2021 | 000-23081 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 23, 2021 | Feb 19, 2021 | 000-23081 |
| 4 | Open Document | Open Filing | FORM 4 | Jul 16, 2020 | Jun 17, 2020 | 000-23081 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 25, 2020 | Feb 21, 2020 | 000-23081 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 19, 2019 | Jun 17, 2019 | 000-23081 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 19, 2019 | Jun 17, 2019 | 000-23081 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 1, 2019 | Feb 1, 2019 | 000-12853 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 11, 2018 | May 9, 2018 | 000-12853 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 15, 2017 | May 11, 2017 | 000-12853 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 8, 2016 | Nov 4, 2016 | 000-12853 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 21, 2016 | Oct 3, 2016 | 000-12853 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 21, 2016 | Oct 3, 2016 | 000-12853 |
| 4/A | Open Document | Open Filing | 4/A | Mar 15, 2016 | Feb 5, 2016 | 000-51072 |
| 4/A | Open Document | Open Filing | 4/A | Mar 15, 2016 | Feb 3, 2016 | 000-51072 |
| 4/A | Open Document | Open Filing | 4/A | Mar 15, 2016 | Jan 31, 2016 | 000-51072 |
| 4 | Open Document | Open Filing | 4 | Feb 9, 2016 | Feb 5, 2016 | 000-51072 |
| 4 | Open Document | Open Filing | 4 | Feb 5, 2016 | Feb 3, 2016 | 000-51072 |
| 4 | Open Document | Open Filing | 4 | Feb 1, 2016 | Jan 31, 2016 | 000-51072 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 3, 2015 | May 31, 2015 | 001-15755 |
| 4 | Open Document | Open Filing | 4 | Feb 10, 2015 | Feb 6, 2015 | 000-51072 |
| 4 | Open Document | Open Filing | 4 | Feb 9, 2015 | Feb 6, 2015 | 000-51072 |
| 4 | Open Document | Open Filing | 4 | Feb 3, 2015 | Jan 30, 2015 | 000-51072 |
| 4 | Open Document | Open Filing | 4 | Jul 8, 2014 | Jul 7, 2014 | 000-51072 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 7, 2014 | May 6, 2014 | 001-15755 |
| 4 | Open Document | Open Filing | 4 | Feb 11, 2014 | Feb 7, 2014 | 000-51072 |
| 4 | Open Document | Open Filing | 4 | Feb 4, 2014 | Jan 31, 2014 | 000-51072 |