VOLTERRA SEMICONDUCTOR CORP

CUSIP: 928708106 Class: COM

ALLIANCEBERNSTEIN L.P.'s Holding History (CIK: 0001109448)

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

Q3 2013
Shares 46,211 Value ($000) $1,063 Avg Close — Range —
Q2 2013
Shares 48,769 Value ($000) $689 Avg Close — Range —