| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 03 Jun 2021 | 02 Apr 2021 | 000-55557 |
| 5 | Open Document | Open Filing | FORM 5 | 26 Apr 2021 | 31 Dec 2017 | 000-55557 |
| 3 | Open Document | Open Filing | FORM 3 | 22 Apr 2021 | 12 Jul 2017 | 000-55557 |