| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 21 Dec 2021 | 17 Dec 2021 | 001-35779 |
| 4 | Open Document | Open Filing | FORM 4 | 07 Dec 2021 | 05 Dec 2021 | 001-35779 |
| 4 | Open Document | Open Filing | FORM 4 | 15 Mar 2021 | 12 Mar 2021 | 001-35779 |
| 4 | Open Document | Open Filing | FORM 4 | 08 Dec 2020 | 05 Dec 2020 | 001-35779 |
| 4 | Open Document | Open Filing | 4 | 09 Mar 2020 | 09 Mar 2020 | 001-35779 |
| 4 | Open Document | Open Filing | 4 | 09 Dec 2019 | 05 Dec 2019 | 001-35779 |
| 4 | Open Document | Open Filing | 4 | 12 Mar 2019 | 08 Mar 2019 | 001-35779 |
| 4 | Open Document | Open Filing | 4 | 07 Dec 2018 | 05 Dec 2018 | 001-35779 |
| 4 | Open Document | Open Filing | 4 | 05 Nov 2018 | 01 Nov 2018 | 001-35779 |
| 4 | Open Document | Open Filing | 4 | 17 Apr 2018 | 13 Apr 2018 | 001-35779 |
| 4 | Open Document | Open Filing | 4 | 12 Mar 2018 | 09 Mar 2018 | 001-35779 |
| 4 | Open Document | Open Filing | 4 | 14 Feb 2018 | 12 Feb 2018 | 001-35779 |
| 4 | Open Document | Open Filing | 4 | 14 Mar 2017 | 10 Mar 2017 | 001-35779 |
| 4 | Open Document | Open Filing | 4 | 15 Feb 2017 | 13 Feb 2017 | 001-35779 |
| 4 | Open Document | Open Filing | 4 | 25 Apr 2016 | 25 Apr 2016 | 001-35779 |
| 4 | Open Document | Open Filing | 4 | 29 Mar 2016 | 25 Mar 2016 | 001-35779 |
| 4 | Open Document | Open Filing | 4 | 16 Feb 2016 | 11 Feb 2016 | 001-35779 |
| 4 | Open Document | Open Filing | 4 | 27 Apr 2015 | 24 Apr 2015 | 001-35779 |
| 4 | Open Document | Open Filing | 4 | 31 Mar 2015 | 27 Mar 2015 | 001-35779 |
| 4 | Open Document | Open Filing | 4 | 23 Feb 2015 | 19 Feb 2015 | 001-35779 |
| 4 | Open Document | Open Filing | 4 | 28 Apr 2014 | 25 Apr 2014 | 001-35779 |
| 4 | Open Document | Open Filing | 4 | 24 Feb 2014 | 20 Feb 2014 | 001-35779 |
| 3 | Open Document | Open Filing | 3 | 30 May 2013 | 21 May 2013 | 001-35779 |