ECOLOGY & ENVIRONMENT INC

CUSIP: 278878103 Class: CL A

CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM's Holding History (CIK: 0000919079)

Note: Option positions (PUT/CALL) are excluded.

Q4 2013
Shares 6,300 Value ($000) $69 Avg Close — Range —
Q3 2013
Shares 6,300 Value ($000) $73 Avg Close — Range —
Q2 2013
Shares 6,300 Value ($000) $66 Avg Close — Range —