| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | May 22, 2025 | May 21, 2025 | 000-19582 | |
| 4 | Open Document | Open Filing | Feb 14, 2025 | Feb 12, 2025 | 000-19582 | |
| 4 | Open Document | Open Filing | May 17, 2024 | May 15, 2024 | 000-19582 | |
| 4 | Open Document | Open Filing | Feb 28, 2024 | Feb 27, 2024 | 000-19582 | |
| 4 | Open Document | Open Filing | Nov 17, 2023 | Nov 16, 2023 | 000-19582 | |
| 4 | Open Document | Open Filing | May 25, 2023 | May 24, 2023 | 000-19582 | |
| 4 | Open Document | Open Filing | May 18, 2023 | May 17, 2023 | 000-19582 | |
| 4 | Open Document | Open Filing | FORM 4 | Aug 9, 2022 | Aug 8, 2022 | 000-19582 |
| 4 | Open Document | Open Filing | FORM 4 | May 19, 2022 | Feb 18, 2022 | 000-19582 |
| 4 | Open Document | Open Filing | FORM 4 | May 21, 2021 | Feb 11, 2021 | 000-19582 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 11, 2021 | Nov 6, 2020 | 000-19582 |
| 4 | Open Document | Open Filing | FORM 4 | May 22, 2020 | Feb 26, 2020 | 000-19582 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 11, 2020 | Aug 8, 2019 | 000-19582 |
| 4 | Open Document | Open Filing | FORM 4 | May 15, 2019 | May 15, 2019 | 000-19582 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 12, 2019 | May 29, 2018 | 000-19582 |
| 4 | Open Document | Open Filing | FORM 4 | May 18, 2018 | May 16, 2018 | 000-19582 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 12, 2018 | Aug 7, 2017 | 000-19582 |
| 4 | Open Document | Open Filing | FORM 4 | May 8, 2017 | May 4, 2017 | 000-19582 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 10, 2017 | Feb 22, 2016 | 000-19582 |
| SC 13D/A | Open Document | Open Filing | SC 13D AMENDMENT NO. 3 | Nov 23, 2016 | ||
| 4 | Open Document | Open Filing | FORM 4 | Aug 15, 2016 | Aug 12, 2016 | 000-19582 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 12, 2016 | Aug 11, 2016 | 000-19582 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 11, 2016 | Aug 9, 2016 | 000-19582 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 10, 2016 | Aug 8, 2016 | 000-19582 |
| 4 | Open Document | Open Filing | FORM 4 | May 31, 2016 | May 25, 2016 | 000-19582 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 12, 2016 | May 22, 2015 | 000-19582 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 1, 2015 | May 29, 2015 | 000-19582 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 10, 2015 | Feb 27, 2014 | 000-19582 |
| SC 13D/A | Open Document | Open Filing | SC 13D/A | Jun 9, 2014 | ||
| 4 | Open Document | Open Filing | FORM 4 | Jun 3, 2014 | May 30, 2014 | 000-19582 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 12, 2014 | Aug 30, 2013 | 000-19582 |