Portfolio Managers

Mr. Kolokotrones co-founded PRIMECAP Management Company in September 1983. He spent six years at Capital Research Company, most recently as Senior Vice President. He has held portfolio management responsibilities since 1979. From 1970 to 1977, he was Vice President and Senior Financial Analyst at Smith Barney, Harris Upham and Company in New York.

Mr. Kolokotrones is a graduate of the University of Chicago and the Harvard Graduate School of Business Administration.

Mr. Fried joined PRIMECAP Management Company in June 1986. Prior to joining PRIMECAP, he spent one year as a financial analyst with Hughes Investment Management Company, a wholly-owned subsidiary of Hughes Aircraft.

Mr. Fried received his undergraduate degree in Economic Systems/Science from the University of California, Los Angeles and is a graduate of UCLA Anderson School of Management.

Mr. Mordecai joined PRIMECAP Management Company in August 1997. In 1996, he was an associate at McKinsey and Company. From 1990 to 1995, he worked as a nuclear engineer and program manager for the Naval Nuclear Propulsion Directorate, a joint U.S. Navy and Department of Energy organization.

Mr. Mordecai graduated with a degree in Mechanical Engineering from Duke University. He has a master’s degree in Systems Engineering from Virginia Polytechnic Institute and State University and is a graduate of the Harvard Graduate School of Business Administration.

Mr. Ansari joined PRIMECAP Management Company in July 2000. In 1999, he was an associate at Andersen Consulting. From 1994 to 1998, he worked at Weyerhaeuser Company on various assignments ranging from managing capital projects to coordinating production at mills.

Mr. Ansari graduated from Colgate University with a bachelor’s degree in Physics and from Washington University with a bachelor’s degree in Chemical Engineering. Mr. Ansari is also a graduate of the Harvard Graduate School of Business Administration.

Mr. Marchetti joined PRIMECAP Management Company in September 2005. In 2004, he worked as a product analyst in Fidelity’s Strategic Investments group. From 1996 to 2003, he ran the software division of Intellisense, a start-up acquired by Corning Inc. in 2001.

Mr. Marchetti holds an MBA degree from MIT-Sloan and a bachelor’s degree in Chemical Engineering, also from MIT, where he completed a thesis focused on recombinant protein recovery and purification techniques.