| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jul 5, 2023 | Jun 30, 2023 | 001-16497 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jan 13, 2023 | Jan 11, 2023 | 001-16497 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jul 1, 2022 | Jun 30, 2022 | 001-16497 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Apr 19, 2022 | Apr 17, 2022 | 001-16497 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Apr 4, 2022 | Mar 28, 2022 | 001-16497 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Nov 29, 2021 | Nov 24, 2021 | 001-16497 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jul 1, 2021 | Jun 29, 2021 | 001-16497 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Apr 20, 2021 | Apr 16, 2021 | 001-16497 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Mar 31, 2021 | Mar 29, 2021 | 001-16497 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Dec 3, 2020 | Dec 1, 2020 | 001-16497 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Apr 21, 2020 | Apr 17, 2020 | 001-16497 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jan 2, 2020 | Dec 31, 2019 | 001-16497 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jul 2, 2019 | Jun 28, 2019 | 001-16497 |
| 4/A | Open Document | Open Filing | OWNERSHIP DOCUMENT | Apr 22, 2019 | Apr 17, 2019 | 001-16497 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Apr 19, 2019 | Apr 17, 2019 | 001-16497 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Apr 17, 2019 | Apr 15, 2019 | 001-16497 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Mar 28, 2019 | Mar 26, 2019 | 001-16497 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jul 2, 2018 | Jun 28, 2018 | 001-16497 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Apr 18, 2018 | Apr 16, 2018 | 001-16497 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Apr 17, 2018 | Apr 15, 2018 | 001-16497 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jul 3, 2017 | Jun 29, 2017 | 001-16497 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jun 29, 2017 | Jun 22, 2017 | 001-16497 |