SC 13G/A | Amendment to a previously filed SC 13G | Feb 14, 2018 |     |
SC 13G | Schedule filed to report acquisition of beneficial ownership of 5% or more of a class of equity securities by passive investors and certain institutions | Feb 14, 2018 |    |
SC 13G/A | Amendment to a previously filed SC 13G | Feb 13, 2018 |    |
SC 13G/A | Amendment to a previously filed SC 13G | Feb 6, 2018 |     |
SC 13G | Schedule filed to report acquisition of beneficial ownership of 5% or more of a class of equity securities by passive investors and certain institutions | Jun 12, 2017 |    |
SD | SD | May 25, 2017 |     |
SC 13G | Schedule filed to report acquisition of beneficial ownership of 5% or more of a class of equity securities by passive investors and certain institutions | May 22, 2017 |     |