Deregistration permits the company to maintain more control over its shareholder base - Game is on IMO. https://www.blankrome.com/publications/going-dark-considerations-process-and-timing Notice of Effective Date 09/21 http://www.kccllc.net/windstream/document/1922312200921000000000004 Form 15 to deregister filed on 09/22 one day after Effective Date 09/21 https://www.sec.gov/cgi-bin/browse-edgar?CIK=1282266&owner=exclude