NYSE: WES0001414475
YearTrailing 12-MonthsCalendar Year 2024Calendar Year 2023Calendar Year 2022Calendar Year 2021Calendar Year 2020Calendar Year 2019Calendar Year 2018Calendar Year 2017Calendar Year 2016Calendar Year 2015Calendar Year 2014Calendar Year 2013Calendar Year 2012Calendar Year 2011Calendar Year 2010Calendar Year 2009Calendar Year 2008Calendar Year 2007
ViewAll FilingsAnnual FilingsQuarterly FilingsCurrent FilingsRegistration StatementsSection 16Mergers & AcquisitionsProxy & Information StatementsOther
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.
8-KReport of unscheduled material events or corporate event12/20/2018Open Report of unscheduled material events or corporate event in HTML.Open Report of unscheduled material events or corporate event in DOC file.Open Report of unscheduled material events or corporate event in PDF file.Open Report of unscheduled material events or corporate event 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.
3Initial filing by director officer or owner of more than ten percent.11/21/2018Open Initial filing by director officer or owner of more than ten percent. in HTML.Open Initial filing by director officer or owner of more than ten percent. in DOC file.Open Initial filing by director officer or owner of more than ten percent. in PDF file.Open Initial filing by director officer or owner of more than ten percent. in XLS file.
3Initial filing by director officer or owner of more than ten percent.11/21/2018Open Initial filing by director officer or owner of more than ten percent. in HTML.Open Initial filing by director officer or owner of more than ten percent. in DOC file.Open Initial filing by director officer or owner of more than ten percent. in PDF file.Open Initial filing by director officer or owner of more than ten percent. in XLS file.
8-KReport of unscheduled material events or corporate event11/19/2018Open Report of unscheduled material events or corporate event in HTML.Open Report of unscheduled material events or corporate event in DOC file.Open Report of unscheduled material events or corporate event in PDF file.Open Report of unscheduled material events or corporate event 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.
4Statement of changes in beneficial ownership of securities11/13/2018Open Statement of changes in beneficial ownership of securities in HTML.Open Statement of changes in beneficial ownership of securities in DOC file.Open Statement of changes in beneficial ownership of securities in PDF file.Open Statement of changes in beneficial ownership of securities 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.
8-KReport of unscheduled material events or corporate event11/09/2018Open Report of unscheduled material events or corporate event in HTML.Open Report of unscheduled material events or corporate event in DOC file.Open Report of unscheduled material events or corporate event in PDF file.Open Report of unscheduled material events or corporate event 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.
10-QQuarterly report which provides a continuing view of a company's financial position10/31/2018Open Quarterly report which provides a continuing view of a company's financial position in HTML.Open Quarterly report which provides a continuing view of a company's financial position in DOC file.Open Quarterly report which provides a continuing view of a company's financial position in PDF file.Open Quarterly report which provides a continuing view of a company's financial position in XLS file.Open Quarterly report which provides a continuing view of a company's financial position in XBLR Viewer.Open Quarterly report which provides a continuing view of a company's financial position in XBLR file.
8-KReport of unscheduled material events or corporate event10/30/2018Open Report of unscheduled material events or corporate event in HTML.Open Report of unscheduled material events or corporate event in DOC file.Open Report of unscheduled material events or corporate event in PDF file.Open Report of unscheduled material events or corporate event in XLS file.
8-KReport of unscheduled material events or corporate event10/09/2018Open Report of unscheduled material events or corporate event in HTML.Open Report of unscheduled material events or corporate event in DOC file.Open Report of unscheduled material events or corporate event in PDF file.Open Report of unscheduled material events or corporate event 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.
4Statement of changes in beneficial ownership of securities08/13/2018Open Statement of changes in beneficial ownership of securities in HTML.Open Statement of changes in beneficial ownership of securities in DOC file.Open Statement of changes in beneficial ownership of securities in PDF file.Open Statement of changes in beneficial ownership of securities 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.
8-KReport of unscheduled material events or corporate event08/09/2018Open Report of unscheduled material events or corporate event in HTML.Open Report of unscheduled material events or corporate event in DOC file.Open Report of unscheduled material events or corporate event in PDF file.Open Report of unscheduled material events or corporate event in XLS file.
424B2Form of prospectus filed in connection with primary offering of securities on a delayed basis08/08/2018Open Form of prospectus filed in connection with primary offering of securities on a delayed basis in HTML.Open Form of prospectus filed in connection with primary offering of securities on a delayed basis in DOC file.Open Form of prospectus filed in connection with primary offering of securities on a delayed basis in PDF file.Open Form of prospectus filed in connection with primary offering of securities on a delayed basis 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.
424B2Form of prospectus filed in connection with primary offering of securities on a delayed basis08/07/2018Open Form of prospectus filed in connection with primary offering of securities on a delayed basis in HTML.Open Form of prospectus filed in connection with primary offering of securities on a delayed basis in DOC file.Open Form of prospectus filed in connection with primary offering of securities on a delayed basis in PDF file.Open Form of prospectus filed in connection with primary offering of securities on a delayed basis in XLS file.
10-QQuarterly report which provides a continuing view of a company's financial position08/01/2018Open Quarterly report which provides a continuing view of a company's financial position in HTML.Open Quarterly report which provides a continuing view of a company's financial position in DOC file.Open Quarterly report which provides a continuing view of a company's financial position in PDF file.Open Quarterly report which provides a continuing view of a company's financial position in XLS file.Open Quarterly report which provides a continuing view of a company's financial position in XBLR Viewer.Open Quarterly report which provides a continuing view of a company's financial position in XBLR file.
1-25      26-50      51-51