| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 4 | Jun 17, 2025 | Jun 13, 2025 | 000-19357 |
| 4 | Open Document | Open Filing | 4 | May 14, 2024 | May 9, 2024 | 000-19357 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 27, 2023 | Jun 19, 2023 | 000-19357 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 18, 2022 | May 12, 2022 | 000-19357 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 3, 2021 | Jul 30, 2021 | 000-19357 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 11, 2021 | May 5, 2021 | 000-19357 |
| 4/A | Open Document | Open Filing | FORM 4/A SUBMISSION | Jun 11, 2020 | Jun 1, 2020 | 000-19357 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 11, 2020 | Jun 1, 2020 | 000-19357 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jul 31, 2019 | Jul 29, 2019 | 000-19357 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 7, 2019 | Jun 6, 2019 | 000-19357 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 23, 2019 | May 15, 2019 | 000-19357 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 15, 2019 | Feb 13, 2019 | 000-19357 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Nov 13, 2018 | Nov 9, 2018 | 000-19357 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 7, 2018 | Jun 5, 2018 | 000-19357 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 30, 2018 | May 25, 2018 | 000-19357 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 16, 2018 | May 14, 2018 | 000-19357 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 2, 2018 | Mar 1, 2018 | 000-19357 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 18, 2017 | Aug 15, 2017 | 000-19357 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 18, 2017 | Aug 15, 2017 | 000-19357 |