Mark RacheskyMark H. Rachesky is chairman of Lionsgate and head of MHR Fund Management, a $5 billion investment firm. The investment firm's holdings include a stake in Lions Gate as well as investments in the trucking and energy sectors.Early lifeBorn to a Jewish family, Rachesky graduated with a B.S. in Biology from the University of Pennsylvania and later earned a M.B.A. and a M.D. from Stanford University.PhilanthropyHe and his wife run a charitable foundation that supports UJA Federation of New York, the Museum of [Jewish Heritage], Trinity School and the University of Pennsylvania.Personal lifeRachesky is married to Jill Rachesky; they have four children, Kate, Allison, Samantha, and Steven.