| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) | 
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 4 | Oct 17, 2025 | Oct 15, 2025 | 000-25150 | 
| 4 | Open Document | Open Filing | 4 | May 6, 2025 | May 5, 2025 | 001-08524 | 
| 4 | Open Document | Open Filing | 4 | Nov 26, 2024 | Nov 25, 2024 | 001-08524 | 
| 4 | Open Document | Open Filing | 4 | Oct 29, 2024 | Oct 25, 2024 | 000-25150 | 
| 4 | Open Document | Open Filing | 4 | May 13, 2024 | May 9, 2024 | 001-08524 | 
| 4 | Open Document | Open Filing | Oct 18, 2023 | Oct 18, 2023 | 001-14962 | |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 12, 2023 | Oct 10, 2023 | 000-25150 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 15, 2023 | Aug 15, 2023 | 001-14962 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 28, 2023 | Apr 27, 2023 | 001-08524 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 21, 2023 | Mar 17, 2023 | 001-14962 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 7, 2023 | Mar 6, 2023 | 001-08524 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 17, 2022 | Aug 15, 2022 | 001-14962 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 2, 2022 | Apr 28, 2022 | 001-08524 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 19, 2022 | Apr 17, 2022 | 001-14962 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 16, 2022 | Mar 15, 2022 | 001-08524 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Nov 18, 2021 | Nov 16, 2021 | 001-08524 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 20, 2021 | Aug 18, 2021 | 001-08524 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 16, 2021 | Aug 16, 2021 | 001-14962 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 15, 2021 | Jul 15, 2021 | 001-14962 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 24, 2021 | May 20, 2021 | 001-14962 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 3, 2021 | Apr 29, 2021 | 001-08524 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 18, 2021 | Mar 17, 2021 | 001-14962 | 
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 17, 2020 | Jun 13, 2020 | 001-14962 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 17, 2020 | Jun 15, 2020 | 001-14962 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 12, 2020 | May 8, 2020 | 001-08524 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 1, 2020 | Apr 29, 2020 | 001-08524 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 17, 2020 | Mar 17, 2020 | 001-08524 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 26, 2019 | Apr 24, 2019 | 001-08524 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 30, 2018 | May 25, 2018 | 001-08524 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 27, 2018 | Apr 25, 2018 | 001-08524 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 28, 2017 | Apr 26, 2017 | 001-08524 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 26, 2016 | Apr 22, 2016 | 001-08524 | 
| 4 | Open Document | Open Filing | 4 | Apr 18, 2016 | Apr 14, 2016 | 000-11595 | 
| 4/A | Open Document | Open Filing | FORM 4/A - | Apr 15, 2016 | Apr 21, 2015 | 000-11595 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 31, 2016 | Mar 30, 2016 | 001-37387 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 4, 2016 | Feb 4, 2016 | 001-03381 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 20, 2016 | Jan 19, 2016 | 000-11595 | 
| 3 | Open Document | Open Filing | 3 | Nov 2, 2015 | Nov 2, 2015 | 001-37387 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 28, 2015 | Oct 23, 2015 | 000-11595 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 28, 2015 | Aug 27, 2015 | 001-08524 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 22, 2015 | Jul 21, 2015 | 000-11595 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jul 13, 2015 | Jul 10, 2015 | 001-03381 | 
| 3/A | Open Document | Open Filing | FORM 3/A SUBMISSION | Jul 13, 2015 | Jul 10, 2015 | 001-03381 | 
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Jul 13, 2015 | Jul 10, 2015 | 001-03381 | 
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | May 5, 2015 | Apr 24, 2015 | 001-08524 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 24, 2015 | Apr 21, 2015 | 000-11595 |