The investment was made through the Petershill program, which provides capital to leading alternative asset managers.
Publicly-traded large-cap companies continue to garner the attention of media and investors, but allocator interest is beginning to look down market to the small-cap sector.
The firm has appointed a managing director and fixed-income specialist.
The plan is seeking developed markets equity managers to handle a $50 million allocation.
The plan also terminated a bank loan manager at its March board meeting.
Firms can submit a proposal for either or both pension plans.
The pension plan hired five non-U.S. equity managers and approved a new private equity portfolio structure last week.
A total of three finalists were interviewed at a meeting this week.
The pension plan approved a credit commitment with an existing manager relationship last month.
The cio leaves after more than 20 years with the county pension.