Is a 13D from Kerkorian on GM Forthcoming

Is an amended 13D forthcoming from Kirk Kerkorian's on GM showing he cut his stake? Here is the rumor from our rumor blog: http://stockrumor.blogspot.com/

"CNBC's David Faber makes note that Tracinda Corp/Kirk Kerkorian had announced a cash tender offer to increase his stake in MGM (NYSE: MGM). However, Faber says the real question is "Is Kerkorian Selling General Motors (NYSE: GM) Stock?", noting the significant drop in share price over the past few days and the 45 day 'quiet period' window which recently expired after Jerome York resigned from the GM board."