| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | May 30, 2025 | May 29, 2025 | 000-27701 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 28, 2025 | Mar 28, 2025 | 000-27701 |
| 4 | Open Document | Open Filing | FORM 4 - STEAD | Jun 6, 2024 | Jun 6, 2024 | 000-27701 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 3, 2024 | May 30, 2024 | 000-27701 |
| 4 | Open Document | Open Filing | FORM 4 - STEAD | Mar 25, 2024 | Mar 25, 2024 | 000-27701 |
| 4 | Open Document | Open Filing | FORM 4 - STEAD | Jun 6, 2023 | Jun 6, 2023 | 000-27701 |
| 4 | Open Document | Open Filing | FORM 4 - STEAD | Mar 24, 2023 | Mar 23, 2023 | 000-27701 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 25, 2022 | Mar 23, 2022 | 000-27701 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 18, 2022 | Mar 17, 2022 | 000-27701 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 13, 2021 | Dec 10, 2021 | 000-27701 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Sep 13, 2021 | Sep 10, 2021 | 000-27701 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 10, 2021 | Jun 10, 2021 | 000-27701 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 18, 2021 | Mar 16, 2021 | 000-27701 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 11, 2021 | Mar 10, 2021 | 000-27701 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 18, 2020 | Mar 17, 2020 | 000-27701 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 12, 2020 | Mar 11, 2020 | 000-27701 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 19, 2019 | Mar 15, 2019 | 000-27701 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 19, 2018 | Mar 19, 2018 | 000-27701 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 16, 2018 | Mar 15, 2018 | 000-27701 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 26, 2018 | Feb 23, 2018 | 000-27701 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 20, 2017 | Mar 20, 2017 | 000-27701 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 17, 2017 | Mar 16, 2017 | 000-27701 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Sep 6, 2016 | Sep 6, 2016 | 000-27701 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 12, 2016 | May 11, 2016 | 000-27701 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 18, 2016 | Mar 17, 2016 | 000-27701 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 19, 2015 | Mar 18, 2015 | 000-27701 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 11, 2015 | Mar 10, 2015 | 000-27701 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 14, 2014 | Aug 13, 2014 | 000-27701 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 19, 2014 | Mar 18, 2014 | 000-27701 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 13, 2014 | Mar 11, 2014 | 000-27701 |