| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 11, 2021 | Jun 9, 2021 | 001-12235 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 24, 2021 | May 20, 2021 | 001-12235 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 29, 2021 | Apr 27, 2021 | 001-12235 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Nov 16, 2020 | Nov 15, 2020 | 001-12235 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 11, 2020 | Jun 9, 2020 | 001-12235 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 22, 2020 | May 20, 2020 | 001-12235 |
| 4 | Open Document | Open Filing | FORM 4 | Nov 18, 2019 | Nov 15, 2019 | 001-12235 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 11, 2019 | Jun 9, 2019 | 001-12235 |
| 4 | Open Document | Open Filing | FORM 4 | May 21, 2019 | May 20, 2019 | 001-12235 |
| 4 | Open Document | Open Filing | FORM 4 - | Nov 16, 2018 | Nov 15, 2018 | 001-12235 |
| 4 | Open Document | Open Filing | FORM 4 - | Jun 1, 2018 | May 30, 2018 | 001-12235 |
| 4 | Open Document | Open Filing | FORM 4 - | Nov 17, 2017 | Nov 15, 2017 | 001-12235 |
| 3 | Open Document | Open Filing | FORM 3 - | Sep 25, 2017 | Sep 25, 2017 | 001-12235 |