VOLTERRA SEMICONDUCTOR CORP

CUSIP: 928708106 Class: COM

BLAIR WILLIAM & CO/IL's Holding History (CIK: 0000902367)

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

Q3 2013
Shares 34,686 Value ($000) $797 Avg Close — Range —
Q2 2013
Shares 58,641 Value ($000) $826 Avg Close — Range —