However, last month he said: "I intend to maintain a significant, if not all my current stake in the music houses."
Mr Weitzenhoffer has a long history of producing and backing shows in Britain and the US and is a former financial backer for Really Useful Group productions.
He is currently producing Some Girls at the Gielgud Theatre, starring David Schwimmer, where he had an earlier hit with One Flew Over The Cuckoo's Nest starring Christian Slater.
Mr Weitzenhoffer hails from a renowned family of philanthropists who have donated mill ions of pounds to their hometown university, Oklahoma, setting up the Weitzenhoffer Family College of Fine Arts. His father co-founded the Davon Oil Company in 1936.