AMBIT BIOSCIENCES CORP

CUSIP: 02318X100 Class: COM

Spark Investment Management LLC's Holding History (CIK: 0001554871)

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

Q1 2014
Shares 19,800 Value ($000) $177 Avg Close — Range —
Q4 2013
Shares 23,300 Value ($000) $222 Avg Close — Range —
Q3 2013
Shares 24,200 Value ($000) $378 Avg Close — Range —