XOMA CORP DEL

CUSIP: 98419J107 Class: CMN

DRIEHAUS CAPITAL MANAGEMENT LLC's Holding History (CIK: 0000938206)

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

Q3 2014
Shares 1,646,401 Value ($000) $6,931 Avg Close — Range —
Q2 2014
Shares 2,314,541 Value ($000) $10,624 Avg Close — Range —
Q1 2014
Shares 2,740,336 Value ($000) $14,277 Avg Close — Range —
Q4 2013
Shares 1,883,994 Value ($000) $12,679 Avg Close — Range —
Q3 2013
Shares 2,757,112 Value ($000) $12,378 Avg Close — Range —
Q2 2013
Shares 2,923,287 Value ($000) $10,612 Avg Close — Range —