| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 19 Aug 2025 | 15 Aug 2025 | 000-55931 |
| 4 | Open Document | Open Filing | FORM 4 | 16 Aug 2024 | 14 Aug 2024 | 000-55931 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 16 Aug 2023 | 14 Aug 2023 | 000-55931 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 23 Aug 2022 | 23 Aug 2022 | 000-55931 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 19 Aug 2021 | 17 Aug 2021 | 000-55931 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 19 Aug 2020 | 17 Aug 2020 | 000-55931 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 19 Aug 2019 | 15 Aug 2019 | 000-55931 |
| 5 | Open Document | Open Filing | FORM 5 SUBMISSION | 14 Feb 2019 | 31 Dec 2018 | 000-55931 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 30 Apr 2018 | 30 Apr 2018 | 000-55931 |