XOMA CORP DEL

CUSIP: 98419J10 Class: COM

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP's Holding History (CIK: 0001164508)

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

Q1 2014
Shares 240,590 Value ($000) $1,253 Avg Close — Range —
Q2 2013
Shares 35,458 Value ($000) $129 Avg Close — Range —