VOLCANO CORPORATION

CUSIP: 928645100 Class: CMN

IRONWOOD INVESTMENT MANAGEMENT LLC's Holding History (CIK: 0001127761)

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

Q4 2014
Shares 175,137 Value ($000) $3,131 Avg Close — Range —
Q3 2014
Shares 183,233 Value ($000) $1,950 Avg Close — Range —
Q2 2014
Shares 198,561 Value ($000) $3,497 Avg Close — Range —
Q1 2014
Shares 223,793 Value ($000) $4,411 Avg Close — Range —
Q4 2013
Shares 240,003 Value ($000) $5,244 Avg Close — Range —
Q3 2013
Shares 232,104 Value ($000) $5,559 Avg Close — Range —
Q2 2013
Shares 227,108 Value ($000) $4,117 Avg Close — Range —