VOLCANO CORPORATION

CUSIP: 928645100 Class: CMN

GREAT WEST LIFE ASSURANCE CO /CAN/'s Holding History (CIK: 0001046192)

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

Q4 2014
Shares 2,323 Value ($000) $41 Avg Close — Range —
Q3 2014
Shares 2,323 Value ($000) $25 Avg Close — Range —
Q2 2014
Shares 2,323 Value ($000) $41 Avg Close — Range —
Q1 2014
Shares 2,323 Value ($000) $45 Avg Close — Range —
Q4 2013
Shares 2,323 Value ($000) $51 Avg Close — Range —