VOLTERRA SEMICONDUCTOR CORP

CUSIP: 928708106 Class: COM

NORTHERN TRUST CORP's Holding History (CIK: 0000073124)

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

Q3 2013
Shares 286,364 Value ($000) $6,587 Avg Close — Range —
Q2 2013
Shares 396,515 Value ($000) $5,591 Avg Close — Range —