The next filing will be a Form 15 to terminate the registration. Just a formality, as the stock has already been cancelled. That was done late today: https://www.sec.gov/Archives/edgar/data/886158/000119312523247520/d556807d1512g.htm Along with 12 post-effective amendments to a ton of old registration statements. https://www.sec.gov/cgi-bin/browse-edgar?CIK=0000886158&owner=exclude