| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 10 Nov 2021 | 08 Nov 2021 | 001-40994 |
| 3 | Open Document | Open Filing | FORM 3 | 03 Nov 2021 | 03 Nov 2021 | 001-40994 |
| 4 | Open Document | Open Filing | FORM 4 | 30 May 2018 | 29 May 2018 | 001-36779 |
| 4 | Open Document | Open Filing | FORM 4 | 17 May 2018 | 16 May 2018 | 001-36779 |
| 4 | Open Document | Open Filing | FORM 4 | 31 May 2017 | 30 May 2017 | 001-36779 |
| 4 | Open Document | Open Filing | FORM 4 | 11 May 2017 | 10 May 2017 | 001-36779 |
| 4 | Open Document | Open Filing | FORM 4 | 12 May 2016 | 11 May 2016 | 001-36779 |
| 4 | Open Document | Open Filing | FORM 4 | 03 Jun 2015 | 01 Jun 2015 | 001-36779 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Apr 2015 | 01 Apr 2015 | 001-02217 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 22 Dec 2014 | 22 Dec 2014 | 001-36779 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Dec 2014 | 15 Dec 2014 | 001-02217 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 16 Dec 2014 | 16 Dec 2014 | 001-36779 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Nov 2014 | 10 Nov 2014 | 001-02217 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Oct 2014 | 01 Oct 2014 | 001-02217 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Jul 2014 | 01 Jul 2014 | 001-02217 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Apr 2014 | 01 Apr 2014 | 001-02217 |