OPTIMER PHARMACEUTICALS INC

CUSIP: 68401H104 Class: CMN

ALLIANCEBERNSTEIN L.P.'s Holding History (CIK: 0001109448)

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

Q3 2013
Shares 91,656 Value ($000) $1,155 Avg Close — Range —
Q2 2013
Shares 613,050 Value ($000) $8,871 Avg Close — Range —