NYSE: WES0001414475
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FormDescriptionDateFormat
425Filing of certain prospectuses and communications in connection with business combination transactions12/20/2018Open Filing of certain prospectuses and communications in connection with business combination transactions in HTML.Open Filing of certain prospectuses and communications in connection with business combination transactions in DOC file.Open Filing of certain prospectuses and communications in connection with business combination transactions in PDF file.Open Filing of certain prospectuses and communications in connection with business combination transactions in XLS file.
425Filing of certain prospectuses and communications in connection with business combination transactions12/20/2018Open Filing of certain prospectuses and communications in connection with business combination transactions in HTML.Open Filing of certain prospectuses and communications in connection with business combination transactions in DOC file.Open Filing of certain prospectuses and communications in connection with business combination transactions in PDF file.Open Filing of certain prospectuses and communications in connection with business combination transactions in XLS file.
425Filing of certain prospectuses and communications in connection with business combination transactions12/17/2018Open Filing of certain prospectuses and communications in connection with business combination transactions in HTML.Open Filing of certain prospectuses and communications in connection with business combination transactions in DOC file.Open Filing of certain prospectuses and communications in connection with business combination transactions in PDF file.Open Filing of certain prospectuses and communications in connection with business combination transactions in XLS file.
CT ORDERConfidential treatment order11/19/2018Open Confidential treatment order in HTML.Open Confidential treatment order in DOC file.Open Confidential treatment order in PDF file.Open Confidential treatment order in XLS file.
SC 13D/AAmendment to a SC 13D filing11/09/2018Open Amendment to a SC 13D filing in HTML.Open Amendment to a SC 13D filing in DOC file.Open Amendment to a SC 13D filing in PDF file.Open Amendment to a SC 13D filing in XLS file.
425Filing of certain prospectuses and communications in connection with business combination transactions11/09/2018Open Filing of certain prospectuses and communications in connection with business combination transactions in HTML.Open Filing of certain prospectuses and communications in connection with business combination transactions in DOC file.Open Filing of certain prospectuses and communications in connection with business combination transactions in PDF file.Open Filing of certain prospectuses and communications in connection with business combination transactions in XLS file.
425Filing of certain prospectuses and communications in connection with business combination transactions11/09/2018Open Filing of certain prospectuses and communications in connection with business combination transactions in HTML.Open Filing of certain prospectuses and communications in connection with business combination transactions in DOC file.Open Filing of certain prospectuses and communications in connection with business combination transactions in PDF file.Open Filing of certain prospectuses and communications in connection with business combination transactions in XLS file.
425Filing of certain prospectuses and communications in connection with business combination transactions11/09/2018Open Filing of certain prospectuses and communications in connection with business combination transactions in HTML.Open Filing of certain prospectuses and communications in connection with business combination transactions in DOC file.Open Filing of certain prospectuses and communications in connection with business combination transactions in PDF file.Open Filing of certain prospectuses and communications in connection with business combination transactions in XLS file.
CT ORDERConfidential treatment order09/25/2018Open Confidential treatment order in HTML.Open Confidential treatment order in DOC file.Open Confidential treatment order in PDF file.Open Confidential treatment order in XLS file.
SC 13GSchedule filed to report acquisition of beneficial ownership of 5% or more of a class of equity securities by passive investors and certain institutions08/09/2018Open Schedule filed to report acquisition of beneficial ownership of 5% or more of a class of equity securities by passive investors and certain institutions in HTML.Open Schedule filed to report acquisition of beneficial ownership of 5% or more of a class of equity securities by passive investors and certain institutions in DOC file.Open Schedule filed to report acquisition of beneficial ownership of 5% or more of a class of equity securities by passive investors and certain institutions in PDF file.Open Schedule filed to report acquisition of beneficial ownership of 5% or more of a class of equity securities by passive investors and certain institutions in XLS file.
FWPFree Writing Prospectus08/07/2018Open Free Writing Prospectus in HTML.Open Free Writing Prospectus in DOC file.Open Free Writing Prospectus in PDF file.Open Free Writing Prospectus in XLS file.
CT ORDERConfidential treatment order03/08/2018Open Confidential treatment order in HTML.Open Confidential treatment order in DOC file.Open Confidential treatment order in PDF file.Open Confidential treatment order in XLS file.
FWPFree Writing Prospectus02/21/2018Open Free Writing Prospectus in HTML.Open Free Writing Prospectus in DOC file.Open Free Writing Prospectus in PDF file.Open Free Writing Prospectus in XLS file.
SC 13G/AAmendment to a previously filed SC 13G02/13/2018Open Amendment to a previously filed SC 13G in HTML.Open Amendment to a previously filed SC 13G in DOC file.Open Amendment to a previously filed SC 13G in PDF file.Open Amendment to a previously filed SC 13G in XLS file.
SC 13G/AAmendment to a previously filed SC 13G02/06/2018Open Amendment to a previously filed SC 13G in HTML.Open Amendment to a previously filed SC 13G in DOC file.Open Amendment to a previously filed SC 13G in PDF file.Open Amendment to a previously filed SC 13G in XLS file.
SC 13GSchedule filed to report acquisition of beneficial ownership of 5% or more of a class of equity securities by passive investors and certain institutions02/06/2018Open Schedule filed to report acquisition of beneficial ownership of 5% or more of a class of equity securities by passive investors and certain institutions in HTML.Open Schedule filed to report acquisition of beneficial ownership of 5% or more of a class of equity securities by passive investors and certain institutions in DOC file.Open Schedule filed to report acquisition of beneficial ownership of 5% or more of a class of equity securities by passive investors and certain institutions in PDF file.Open Schedule filed to report acquisition of beneficial ownership of 5% or more of a class of equity securities by passive investors and certain institutions in XLS file.