OPTIMER PHARMACEUTICALS INC

CUSIP: 68401H104 Class: CMN

PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO's Holding History (CIK: 0000315297)

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

Q3 2013
Shares 22,500 Value ($000) $284 Avg Close — Range —
Q2 2013
Shares 22,500 Value ($000) $326 Avg Close — Range —