| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 01 Jun 2021 | 27 May 2021 | 001-35764 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 06 Jul 2020 | 01 Jul 2020 | 001-35764 |
| 4 | Open Document | Open Filing | FORM 4 - | 05 Nov 2019 | 01 Nov 2019 | 001-15891 |
| 4 | Open Document | Open Filing | FORM 4 - | 05 Aug 2019 | 01 Aug 2019 | 001-15891 |
| 4 | Open Document | Open Filing | FORM 4 - | 04 Jun 2019 | 01 Jun 2019 | 001-15891 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 28 May 2019 | 23 May 2019 | 001-35764 |
| 4 | Open Document | Open Filing | FORM 4 - | 03 May 2019 | 01 May 2019 | 001-15891 |
| 4 | Open Document | Open Filing | FORM 4 - | 05 Feb 2019 | 01 Feb 2019 | 001-15891 |
| 4 | Open Document | Open Filing | FORM 4 - | 05 Nov 2018 | 01 Nov 2018 | 001-15891 |
| 4 | Open Document | Open Filing | FORM 4 - | 03 Aug 2018 | 01 Aug 2018 | 001-15891 |
| 4 | Open Document | Open Filing | FORM 4 - | 05 Jun 2018 | 01 Jun 2018 | 001-15891 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 04 Jun 2018 | 31 May 2018 | 001-35764 |
| 4 | Open Document | Open Filing | FORM 4 - | 03 May 2018 | 01 May 2018 | 001-15891 |
| 4 | Open Document | Open Filing | FORM 4 - | 05 Feb 2018 | 01 Feb 2018 | 001-15891 |
| 4 | Open Document | Open Filing | FORM 4 - | 03 Nov 2017 | 01 Nov 2017 | 001-15891 |
| 4 | Open Document | Open Filing | FORM 4 - | 03 Aug 2017 | 01 Aug 2017 | 001-15891 |
| 4 | Open Document | Open Filing | FORM 4 - | 05 Jun 2017 | 01 Jun 2017 | 001-15891 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 22 May 2017 | 18 May 2017 | 001-35764 |
| 4 | Open Document | Open Filing | FORM 4 - | 03 May 2017 | 01 May 2017 | 001-15891 |
| 4 | Open Document | Open Filing | FORM 4 - | 03 Feb 2017 | 01 Feb 2017 | 001-15891 |
| 4 | Open Document | Open Filing | FORM 4 - | 03 Nov 2016 | 01 Nov 2016 | 001-15891 |
| 4 | Open Document | Open Filing | FORM 4 - | 03 Aug 2016 | 01 Aug 2016 | 001-15891 |
| 4/A | Open Document | Open Filing | FORM 4/A - | 03 Aug 2016 | 01 Jun 2016 | 001-15891 |
| 4 | Open Document | Open Filing | FORM 4 - | 03 Jun 2016 | 01 Jun 2016 | 001-15891 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 05 May 2016 | 03 May 2016 | 001-35764 |
| 4 | Open Document | Open Filing | FORM 4 - | 04 May 2016 | 02 May 2016 | 001-15891 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 17 Feb 2016 | 08 Feb 2016 | 001-35764 |
| 4 | Open Document | Open Filing | FORM 4 - | 03 Feb 2016 | 01 Feb 2016 | 001-15891 |
| 4 | Open Document | Open Filing | FORM 4 - | 04 Nov 2015 | 02 Nov 2015 | 001-15891 |
| 4 | Open Document | Open Filing | FORM 4 - | 05 Aug 2015 | 03 Aug 2015 | 001-15891 |
| 4 | Open Document | Open Filing | FORM 4 - | 03 Jun 2015 | 01 Jun 2015 | 001-15891 |
| 4 | Open Document | Open Filing | FORM 4 - | 05 May 2015 | 01 May 2015 | 001-15891 |
| 4 | Open Document | Open Filing | FORM 4 - | 04 Feb 2015 | 02 Feb 2015 | 001-15891 |
| 4 | Open Document | Open Filing | FORM 4 - | 05 Nov 2014 | 03 Nov 2014 | 001-15891 |
| 4 | Open Document | Open Filing | FORM 4 - | 05 Aug 2014 | 01 Aug 2014 | 001-15891 |
| 4/A | Open Document | Open Filing | FORM 4/A - | 10 Jun 2014 | 02 Jun 2014 | 001-15891 |
| 4 | Open Document | Open Filing | FORM 4 - | 04 Jun 2014 | 02 Jun 2014 | 001-15891 |
| 4 | Open Document | Open Filing | FORM 4 - | 05 May 2014 | 01 May 2014 | 001-15891 |
| 4 | Open Document | Open Filing | FORM 4 - | 05 Feb 2014 | 03 Feb 2014 | 001-15891 |
| 4 | Open Document | Open Filing | FORM 4 - | 05 Nov 2013 | 01 Nov 2013 | 001-15891 |
| 4 | Open Document | Open Filing | FORM 4 - | 05 Aug 2013 | 01 Aug 2013 | 001-15891 |
| 4 | Open Document | Open Filing | FORM 4 - | 04 Jun 2013 | 01 Jun 2013 | 001-15891 |
| 4 | Open Document | Open Filing | FORM 4 - | 05 Feb 2013 | 01 Feb 2013 | 001-15891 |
| 4 | Open Document | Open Filing | FORM 4 - | 05 Nov 2012 | 01 Nov 2012 | 001-15891 |
| 4 | Open Document | Open Filing | FORM 4 - | 02 Aug 2012 | 01 Aug 2012 | 001-15891 |
| 4 | Open Document | Open Filing | FORM 4 - | 05 Jun 2012 | 01 Jun 2012 | 001-15891 |