Jerome Castellini is the founder, president, and chief investment officer of CastleArk Management, LLC. Jerry entered the investment industry directly from the University of Notre Dame in 1979 as an energy analyst at Harris Bancorp. In 1981, he moved to Kemper Financial to assume responsibility for the energy sector, and soon was made a portfolio manager. Eight years later, Jerry moved to Loomis, Sayles where he was a portfolio manager, eventually serving as Managing Partner of the Chicago office, along with Ed Clark. Jerry and Ed left Loomis, Sayles in 1999 to form CastleArk Management LLC. Jerry is frequently seen on CNBC discussing his thoughts on large cap growth stocks and the energy sector in particular. In addition to his role as Chief Investment Officer, Jerry also is part of the large cap growth team and manages all of the firm's energy related products.