| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 16 Jun 2021 | 14 Jun 2021 | 000-52049 |
| 4 | Open Document | Open Filing | FORM 4 | 24 Feb 2020 | 20 Feb 2020 | 000-52049 |
| 4 | Open Document | Open Filing | FORM 4 | 10 Jun 2019 | 06 Jun 2019 | 000-52049 |
| 4 | Open Document | Open Filing | FORM 4 | 09 Apr 2018 | 05 Apr 2018 | 000-52049 |
| 4 | Open Document | Open Filing | FORM 4 | 28 Mar 2017 | 24 Mar 2017 | 000-52049 |
| 4 | Open Document | Open Filing | FORM 4 | 19 Dec 2016 | 15 Dec 2016 | 000-52049 |
| 4/A | Open Document | Open Filing | FORM 4/A SUBMISSION | 29 Jan 2016 | 12 Nov 2015 | 000-52049 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 07 Jan 2016 | 05 Jan 2016 | 000-52049 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 16 Nov 2015 | 12 Nov 2015 | 000-52049 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 08 Jan 2015 | 06 Jan 2015 | 000-52049 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 18 Nov 2014 | 17 Nov 2014 | 000-52049 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 08 Jan 2014 | 07 Jan 2014 | 000-52049 |