| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 17 Jun 2021 | 15 Jun 2021 | 001-38436 |
| 4 | Open Document | Open Filing | FORM 4 | 18 Jun 2020 | 16 Jun 2020 | 001-38436 |
| 4 | Open Document | Open Filing | FORM 4 | 22 May 2020 | 21 May 2020 | 001-38436 |
| 4 | Open Document | Open Filing | FORM 4 | 22 May 2019 | 21 May 2019 | 001-38436 |
| 4 | Open Document | Open Filing | FORM 4 | 02 Jan 2019 | 01 Jan 2019 | 001-36586 |
| 4 | Open Document | Open Filing | FORM 4 | 23 May 2018 | 22 May 2018 | 001-38436 |
| 4 | Open Document | Open Filing | FORM 4 | 18 Apr 2018 | 17 Apr 2018 | 001-38436 |
| 4 | Open Document | Open Filing | FORM 4 | 23 Feb 2018 | 21 Feb 2018 | 001-36586 |
| 4 | Open Document | Open Filing | FORM 4 | 27 Nov 2017 | 22 Nov 2017 | 001-36586 |
| 4 | Open Document | Open Filing | FORM 4 | 22 Nov 2017 | 21 Nov 2017 | 001-36586 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 12 Jun 2017 | 09 Jun 2017 | 001-36586 |
| 4 | Open Document | Open Filing | FORM 4 | 24 May 2017 | 23 May 2017 | 000-23047 |
| 4 | Open Document | Open Filing | FORM 4 | 19 May 2017 | 17 May 2017 | 000-23047 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 17 Mar 2017 | 15 Mar 2017 | 001-36586 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 15 Mar 2017 | 13 Mar 2017 | 001-36586 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 13 Mar 2017 | 09 Mar 2017 | 001-36586 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 16 Feb 2017 | 14 Feb 2017 | 001-36586 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 09 Feb 2017 | 07 Feb 2017 | 001-36586 |
| 4 | Open Document | Open Filing | FORM 4 | 18 Nov 2016 | 16 Nov 2016 | 000-23047 |
| 4 | Open Document | Open Filing | FORM 4 | 17 May 2016 | 14 May 2016 | 000-23047 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 03 Mar 2016 | 23 Feb 2016 | 001-36586 |
| 4 | Open Document | Open Filing | FORM 4 | 18 May 2015 | 14 May 2015 | 000-23047 |
| 4 | Open Document | Open Filing | FORM 4 | 26 Mar 2015 | 10 Feb 2015 | 001-36586 |
| 4 | Open Document | Open Filing | FORM 4 | 13 Feb 2015 | 10 Feb 2015 | 001-36586 |
| 3 | Open Document | Open Filing | FORM 3 | 31 Jul 2014 | 31 Jul 2014 | 001-36586 |
| 4 | Open Document | Open Filing | FORM 4 | 16 May 2014 | 15 May 2014 | 000-23047 |
| 4 | Open Document | Open Filing | FORM 4 | 23 May 2013 | 23 May 2013 | 000-23047 |
| 4 | Open Document | Open Filing | FORM 4 | 16 May 2013 | 15 May 2013 | 000-23047 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 25 May 2012 | 23 May 2012 | 000-23047 |