PRIMECAP Management Company was founded in 1983 in Pasadena, CA as an independent investment management company. PRIMECAP manages US-focused equity portfolios for a limited number of institutions and mutual funds. <br>The firm’s objective is to provide superior long-term equity investment results following an investment approach based on four key principles: individual decision-making, commitment to fundamental research, long-term investment horizon and focus on value. <br>PRIMECAP Management utilizes a multi-counselor investment model whereby each portfolio manager has complete autonomy over a distinct sleeve of each Fund.