| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 5 | Open Document | Open Filing | 14 Feb 2022 | 31 Dec 2021 | 001-39480 | |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 29 Sep 2020 | 28 Aug 2020 | 001-39480 |
| 3 | Open Document | Open Filing | 04 May 2018 | 12 Nov 2017 | 000-00935 | |
| 4 | Open Document | Open Filing | FORM 4 | 01 Mar 2017 | 28 Feb 2017 | 001-36601 |
| 4 | Open Document | Open Filing | FORM 4 | 04 Jan 2017 | 03 Jan 2017 | 001-36601 |
| 4 | Open Document | Open Filing | FORM 4 | 05 Jan 2016 | 04 Jan 2016 | 001-36601 |
| 4 | Open Document | Open Filing | FORM 4 | 07 May 2015 | 10 Mar 2015 | 000-52836 |
| 4/A | Open Document | Open Filing | FORM 4/A | 20 Feb 2015 | 25 May 2011 | 001-36601 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 20 Feb 2015 | 18 Feb 2015 | 001-35112 |
| 4 | Open Document | Open Filing | FORM 4 | 05 Jan 2015 | 02 Jan 2015 | 001-36601 |
| 4 | Open Document | Open Filing | FORM 4 | 21 Aug 2014 | 31 May 2014 | 000-52836 |
| 4 | Open Document | Open Filing | FORM 4 | 02 Jun 2014 | 29 May 2014 | 000-53252 |
| 4 | Open Document | Open Filing | FORM 4 | 07 Apr 2014 | 01 Apr 2014 | 000-52836 |
| 4 | Open Document | Open Filing | FORM 4 | 22 Jan 2014 | 31 Dec 2013 | 000-52836 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 06 Jan 2014 | 02 Jan 2014 | 001-35112 |