| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 28 Oct 2021 | 09 Sep 2021 | 001-32954 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 28 Jul 2016 | 21 Jul 2016 | 001-32954 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 24 Apr 2015 | 22 Apr 2015 | 001-32954 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 27 Feb 2015 | 25 Feb 2015 | 001-32954 |
| 5 | Open Document | Open Filing | FORM 5 SUBMISSION | 17 Feb 2015 | 31 Dec 2014 | 001-32954 |