| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) | 
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jun 5, 2025 | Jun 4, 2025 | 001-13991 | 
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jun 6, 2024 | Jun 5, 2024 | 001-13991 | 
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jun 9, 2023 | Jun 7, 2023 | 001-13991 | 
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jun 9, 2022 | Jun 8, 2022 | 001-13991 | 
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jun 10, 2021 | Jun 8, 2021 | 001-13991 | 
| 4 | Open Document | Open Filing | 4 | Jul 10, 2020 | Jul 9, 2020 | 001-13991 | 
| 3 | Open Document | Open Filing | 3 | Jun 18, 2020 | Jun 10, 2020 | 001-13991 |