| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 5, 2023 | May 5, 2023 | 001-15103 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 24, 2023 | Apr 24, 2023 | 001-15103 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 5, 2022 | Apr 1, 2022 | 001-15103 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 16, 2021 | Mar 12, 2021 | 001-15103 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 31, 2020 | Mar 27, 2020 | 001-15103 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 19, 2019 | Mar 15, 2019 | 001-15103 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 21, 2018 | May 17, 2018 | 001-15103 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | May 21, 2018 | May 17, 2018 | 001-15103 |