ARROWHEAD RESH CORP

CUSIP: 042797209 Class: COM

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

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

Q3 2014
Shares 190,762 Value ($000) $2,818 Avg Close — Range —
Q2 2014
Shares 219,720 Value ($000) $3,144 Avg Close — Range —
Q1 2014
Shares 173,404 Value ($000) $2,847 Avg Close — Range —
Q4 2013
Shares 171,657 Value ($000) $1,862 Avg Close — Range —