| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 18 Aug 2021 | 13 Aug 2021 | 000-20333 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 28 Jun 2021 | 24 Jun 2021 | 000-20333 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 10 Jun 2021 | 08 Jun 2021 | 000-20333 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 12 Apr 2021 | 08 Apr 2021 | 000-20333 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 05 Mar 2021 | 03 Mar 2021 | 000-20333 |
| 5 | Open Document | Open Filing | FORM 5 SUBMISSION | 13 Feb 2018 | 31 Dec 2017 | 000-20333 |
| 5 | Open Document | Open Filing | FORM 5 SUBMISSION | 13 Feb 2018 | 31 Dec 2017 | 000-20333 |
| 5 | Open Document | Open Filing | FORM 5 SUBMISSION | 15 Aug 2014 | 31 Dec 2013 | 000-20333 |
| 5 | Open Document | Open Filing | FORM 5 SUBMISSION | 15 Aug 2014 | 31 Dec 2012 | 000-20333 |