XOMA CORP DEL

CUSIP: 98419J107 Class: CMN

Palo Alto Investors LP's Holding History (CIK: 0001306923)

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

Q3 2015
Shares 799,000 Value ($000) $601 Avg Close — Range —
Q2 2015
Shares 799,000 Value ($000) $3,100 Avg Close — Range —
Q1 2015
Shares 794,500 Value ($000) $2,892 Avg Close — Range —
Q4 2014
Shares 794,500 Value ($000) $2,852 Avg Close — Range —
Q3 2014
Shares 624,900 Value ($000) $2,631 Avg Close — Range —
Q2 2014
Shares 624,900 Value ($000) $2,868 Avg Close — Range —
Q1 2014
Shares 256,100 Value ($000) $1,334 Avg Close — Range —
Q4 2013
Shares 256,100 Value ($000) $1,724 Avg Close — Range —
Q3 2013
Shares 418,183 Value ($000) $1,878 Avg Close — Range —
Q2 2013
Shares 522,683 Value ($000) $1,897 Avg Close — Range —