Mr. Zollar has been an Executive Partner at Siris Capital Group, LLC, a private equity firm, since February 2014. Mr. Zollar served as General Manager of the Tivoli Software division of International Business Machines Corporation, a provider of information technology, products and services, from July 2004 to January 2011. He held numerous other roles at IBM, including General Manager of IBM iSeries and General Manager of IBM Lotus Software. Mr. Zollar is a member of the Red Hat and PSEG audit committees, the Chair of the PSEG finance committee and a member of the PSEG fossil and nuclear generation operations oversight committees. Mr. Zollar served as a director of The Chubb Corporation from 2001 until 2016.