Ezra J. Benjamin

AJO LP is a registered investment advisor headquartered in Philadelphia, Pennsylvania. It has additional office in Boston. The firm was formerly known as Aronson+Johnson+Ortiz LP. It was founded in 1984 by Theodore Aronson. AJO provides portfolio management services to corporate pension and profits-haring plans, Taft-Hartley plans, multi-employer plans, charitable institutions, foundations, endowments, municipalities, registered mutual funds, private investment funds, trust programs, foreign funds, and other US and international institutions.