The district is seeking discretionary or non-discretionary services for its $140 million portfolio.
The pension system made $116.5 million in new private markets commitments in July.
The fund closes at more than double its $500 million target.
The global equity manager has named Rodney Cohen as co-ceo and cio of Ariel Alternatives and Melody Rollins as executive v.p. and global head of distribution.
The plan also approved $320 million in alternatives investments at this week’s meetings.
The plan’s incumbent domestic small- to mid-cap core equity manager had been gradually underperforming the benchmark.
The pension fund approved three commitments to existing manager relationships this week.
The plan selected a fund from a search report that included both secondaries and fund-of-funds options.
Fund IV closes with $865 million in commitments, the largest in the firm’s history.
The pension system added $340 million in private markets commitments in the second quarter.