AMBIT BIOSCIENCES CORP

CUSIP: 02318X100 Class: COM

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

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

Q1 2014
Shares 426 Value ($000) $4 Avg Close — Range —
Q4 2013
Shares 144 Value ($000) $1 Avg Close — Range —
Q3 2013
Shares 144 Value ($000) $2 Avg Close — Range —