| SC 13G/A | Amendment to a previously filed SC 13G | Jun 11, 2019 |     |
| SC 13G/A | Amendment to a previously filed SC 13G | Jun 10, 2019 | |
| 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 10, 2019 | |
| SC 13G/A | Amendment to a previously filed SC 13G | Apr 10, 2019 | |
| EFFECT | Notice from the SEC of registration effectiveness | Apr 9, 2019 | |
| 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, 2019 | |
| 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, 2019 | |
| 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 13, 2019 | |
| 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 11, 2019 | |
| 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 1, 2019 | |
| 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 | Jan 25, 2019 | |
| SC 13G/A | Amendment to a previously filed SC 13G | Dec 10, 2018 | |
