| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| SCHEDULE 13G/A | Open Document | Open Filing | May 6, 2025 | |||
| 4 | Open Document | Open Filing | Apr 3, 2025 | Apr 1, 2025 | 000-20574 | |
| 4 | Open Document | Open Filing | Feb 28, 2025 | Feb 27, 2025 | 000-20574 | |
| 144 | Open Document | Open Filing | Feb 27, 2025 | |||
| 4 | Open Document | Open Filing | Feb 20, 2025 | Feb 18, 2025 | 000-20574 | |
| 4 | Open Document | Open Filing | Feb 18, 2025 | Feb 13, 2025 | 000-20574 | |
| 4 | Open Document | Open Filing | Feb 12, 2025 | Feb 10, 2025 | 000-20574 | |
| 4 | Open Document | Open Filing | Nov 12, 2024 | Nov 8, 2024 | 000-20574 | |
| 144 | Open Document | Open Filing | Nov 8, 2024 | |||
| 4 | Open Document | Open Filing | Apr 3, 2024 | Apr 1, 2024 | 000-20574 | |
| 4 | Open Document | Open Filing | Feb 20, 2024 | Feb 15, 2024 | 000-20574 | |
| 4 | Open Document | Open Filing | Feb 15, 2024 | Feb 13, 2024 | 000-20574 | |
| 4 | Open Document | Open Filing | Feb 13, 2024 | Feb 12, 2024 | 000-20574 | |
| SC 13G/A | Open Document | Open Filing | SC 13G/A | Feb 2, 2024 | ||
| 4 | Open Document | Open Filing | Feb 21, 2023 | Feb 16, 2023 | 000-20574 | |
| 4 | Open Document | Open Filing | Feb 14, 2023 | Feb 13, 2023 | 000-20574 | |
| SC 13G/A | Open Document | Open Filing | SC 13G/A | Feb 10, 2023 | ||
| 4 | Open Document | Open Filing | Feb 15, 2022 | Feb 13, 2022 | 000-20574 | |
| 4 | Open Document | Open Filing | Feb 14, 2022 | Feb 10, 2022 | 000-20574 | |
| SC 13G/A | Open Document | Open Filing | SC 13G/A | Feb 4, 2022 | ||
| 4 | Open Document | Open Filing | FORM 4 - | Mar 4, 2021 | Mar 3, 2021 | 000-20574 |
| 4 | Open Document | Open Filing | FORM 4 - | Feb 24, 2021 | Feb 22, 2021 | 000-20574 |
| 4 | Open Document | Open Filing | FORM 4 - | Feb 12, 2021 | Feb 10, 2021 | 000-20574 |
| SC 13G/A | Open Document | Open Filing | SC 13G/A | Feb 3, 2021 | ||
| 4 | Open Document | Open Filing | FORM 4 - | Mar 9, 2020 | Mar 5, 2020 | 000-20574 |
| 4 | Open Document | Open Filing | FORM 4 - | Mar 4, 2020 | Mar 3, 2020 | 000-20574 |
| 4 | Open Document | Open Filing | FORM 4 - | Feb 20, 2020 | Feb 18, 2020 | 000-20574 |
| SC 13G/A | Open Document | Open Filing | SC 13G/A | Feb 10, 2020 | ||
| 4 | Open Document | Open Filing | FORM 4 - | Mar 13, 2019 | Mar 11, 2019 | 000-20574 |
| 4 | Open Document | Open Filing | FORM 4 - | Mar 7, 2019 | Mar 5, 2019 | 000-20574 |
| 4 | Open Document | Open Filing | FORM 4 - | Mar 5, 2019 | Mar 3, 2019 | 000-20574 |
| 4 | Open Document | Open Filing | FORM 4 - | Mar 4, 2019 | Feb 28, 2019 | 000-20574 |
| 5 | Open Document | Open Filing | FORM 5 - | Feb 15, 2019 | Jan 1, 2019 | 000-20574 |
| 4 | Open Document | Open Filing | FORM 4 - | Feb 15, 2019 | Feb 13, 2019 | 000-20574 |
| SC 13G/A | Open Document | Open Filing | SC 13G/A | Feb 11, 2019 | ||
| 4 | Open Document | Open Filing | FORM 4 - | May 1, 2018 | Apr 30, 2018 | 000-20574 |
| 4 | Open Document | Open Filing | FORM 4 - | Mar 12, 2018 | Feb 15, 2018 | 000-20574 |
| 4 | Open Document | Open Filing | FORM 4 - | Mar 9, 2018 | Mar 7, 2018 | 000-20574 |
| 4 | Open Document | Open Filing | FORM 4 - | Mar 7, 2018 | Mar 5, 2018 | 000-20574 |
| SC 13G/A | Open Document | Open Filing | SC 13G/A | Feb 9, 2018 | ||
| 4 | Open Document | Open Filing | FORM 4 - | Mar 22, 2017 | Mar 17, 2017 | 000-20574 |
| 4 | Open Document | Open Filing | FORM 4 - | Mar 8, 2017 | Mar 6, 2017 | 000-20574 |
| 4 | Open Document | Open Filing | FORM 4 - | Mar 6, 2017 | Mar 2, 2017 | 000-20574 |
| SC 13G/A | Open Document | Open Filing | SC 13G/A | Feb 10, 2017 | ||
| 4 | Open Document | Open Filing | FORM 4 - | Jan 9, 2017 | Jan 5, 2017 | 000-20574 |
| 4 | Open Document | Open Filing | FORM 4 - | Nov 21, 2016 | Nov 18, 2016 | 000-20574 |
| 4 | Open Document | Open Filing | FORM 4 - | Mar 8, 2016 | Mar 7, 2016 | 000-20574 |
| 4 | Open Document | Open Filing | FORM 4 - | Mar 7, 2016 | Mar 3, 2016 | 000-20574 |
| 4 | Open Document | Open Filing | FORM 4 - | Feb 26, 2016 | Feb 25, 2016 | 000-20574 |
| 4 | Open Document | Open Filing | FORM 4 - | Feb 23, 2016 | Feb 19, 2016 | 000-20574 |
| SC 13G/A | Open Document | Open Filing | SC 13G/A | Feb 12, 2016 | ||
| 4 | Open Document | Open Filing | FORM 4 - | Jan 7, 2016 | Jan 5, 2016 | 000-20574 |
| 4 | Open Document | Open Filing | FORM 4 - | Apr 28, 2015 | Apr 27, 2015 | 000-20574 |
| 4 | Open Document | Open Filing | FORM 4 - | Mar 12, 2015 | Mar 11, 2015 | 000-20574 |
| 4 | Open Document | Open Filing | FORM 4 - | Mar 9, 2015 | Mar 5, 2015 | 000-20574 |
| SC 13G/A | Open Document | Open Filing | SC 13G/A | Feb 13, 2015 | ||
| 4 | Open Document | Open Filing | FORM 4 - | Jan 7, 2015 | Jan 5, 2015 | 000-20574 |
| 4 | Open Document | Open Filing | FORM 4 - | Mar 11, 2014 | Mar 7, 2014 | 000-20574 |
| 4 | Open Document | Open Filing | FORM 4 - | Mar 7, 2014 | Mar 6, 2014 | 000-20574 |
| SC 13G/A | Open Document | Open Filing | SC 13G/A | Feb 14, 2014 | ||
| 4 | Open Document | Open Filing | FORM 4 - | Jan 8, 2014 | Jan 6, 2014 | 000-20574 |