| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 20 Jan 2022 | 20 Jan 2022 | 000-50448 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 07 Jun 2021 | 03 Jun 2021 | 000-50448 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 15 Jun 2020 | 11 Jun 2020 | 000-50448 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 06 Aug 2019 | 02 Aug 2019 | 000-50448 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 05 Jun 2018 | 04 Jun 2018 | 000-50448 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 22 May 2017 | 18 May 2017 | 000-50448 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 13 Jun 2016 | 09 Jun 2016 | 000-50448 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 11 Aug 2015 | 11 Aug 2015 | 000-50448 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 26 May 2015 | 21 May 2015 | 000-50448 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 13 Feb 2015 | 12 Feb 2015 | 000-50448 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 17 Jun 2014 | 13 Jun 2014 | 000-50448 |