VOLTERRA SEMICONDUCTOR CORP

CUSIP: 928708106 Class: COM

TEXAS PERMANENT SCHOOL FUND CORP's Holding History (CIK: 0001223779)

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

Q3 2013
Shares 26,485 Value ($000) $609 Avg Close — Range —
Q2 2013
Shares 28,046 Value ($000) $396 Avg Close — Range —
Q1 2013
Shares 28,179 Value ($000) $400 Avg Close — Range —