Founded in 1983 in Pasadena, CA
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.
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.