VOLCANO CORPORATION

CUSIP: 928645100 Class: CMN

Employees Retirement System of Texas's Holding History (CIK: 0001398739)

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

Q1 2014
Shares 87,000 Value ($000) $1,715 Avg Close — Range —
Q4 2013
Shares 87,000 Value ($000) $1,901 Avg Close — Range —
Q3 2013
Shares 87,000 Value ($000) $2,081 Avg Close — Range —