ASTEX PHARMACEUTICALS INC

CUSIP: 04624B103 Class: CMN

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

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

Q3 2013
Shares 308,600 Value ($000) $2,617 Avg Close — Range —
Q2 2013
Shares 270,700 Value ($000) $1,113 Avg Close — Range —