| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Apr 28, 2025 | Apr 24, 2025 | 001-32504 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 29, 2024 | Apr 25, 2024 | 001-32504 |
| 4 | Open Document | Open Filing | FORM 4 | May 1, 2023 | Apr 27, 2023 | 001-32504 |
| 4 | Open Document | Open Filing | FORM 4 | May 4, 2022 | May 2, 2022 | 001-32504 |
| 4 | Open Document | Open Filing | FORM 4 | May 3, 2021 | Apr 29, 2021 | 001-32504 |
| 4 | Open Document | Open Filing | FORM 4 | May 13, 2020 | May 11, 2020 | 001-32504 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 5, 2019 | Sep 4, 2019 | 001-32504 |
| 4 | Open Document | Open Filing | FORM 4 | May 3, 2019 | May 1, 2019 | 001-32504 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Sep 6, 2018 | Sep 4, 2018 | 001-32504 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Sep 6, 2018 | Sep 4, 2018 | 001-32504 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 24, 2015 | Feb 23, 2015 | 001-16483 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 20, 2015 | Feb 18, 2015 | 001-16483 |
| 4 | Open Document | Open Filing | SPENCE | Nov 17, 2014 | Nov 13, 2014 | 001-16483 |
| 4 | Open Document | Open Filing | SPENCE AUGUST | Aug 21, 2014 | Aug 19, 2014 | 001-16483 |
| 4 | Open Document | Open Filing | SPENCE FORM 4 | Feb 26, 2014 | Feb 24, 2014 | 001-16483 |
| 4 | Open Document | Open Filing | Feb 21, 2014 | Feb 19, 2014 | 001-16483 |