LAS VEGAS, June 12, 2024 /PRNewswire/ -- Sphere Entertainment Co. (NYSE: SPHR) today announced that Jennifer Koester's role at the Company has been expanded to President and Chief Operating Officer of Sphere. Ms. Koester most recently served as the Company's President, Sphere Business Operations, where she has played a critical role in leading the strategy and execution of all business aspects of Sphere, a next-generation entertainment medium in Las Vegas. In this expanded role, Ms. Koester will continue wo ...