Birdman doesn't own YM he owns 51% of the music released under the joint-venture between Young Money and Cash Money. The joint-venture was first created in 2003 for 5 years. In 2008 they extended the joint-venture another 5 years, however, something happened in 2009 where they extended it again until June 4, 2015 - to be exact. All contracts signed under these joint ventures (Drake, Nicki Minaj etc.) are split 49%-51% between Young Money, LLC (which is 100% owned by Lil Wayne) and Cash Money, Inc (which is 100% owned by Baby and Slim). The joint-venture has expired so Young Money, LLC (again, owned by Lil Wayne) has the right to take Young Money the label elsewhere.