| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 14, 2021 | May 12, 2021 | 001-12111 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 18, 2020 | Feb 13, 2020 | 001-12111 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 14, 2019 | Feb 12, 2019 | 001-12111 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 2, 2018 | Mar 1, 2018 | 001-12111 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 2, 2017 | Jun 1, 2017 | 001-12111 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 3, 2016 | Jun 1, 2016 | 001-12111 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | May 8, 2015 | May 7, 2015 | 001-12111 |