SUPERTEX INC

CUSIP: 868532102 Class: COM

NEW YORK STATE TEACHERS RETIREMENT SYSTEM's Holding History (CIK: 0000314969)

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

Q1 2014
Shares 29,856 Value ($000) $985 Avg Close — Range —
Q4 2013
Shares 30,056 Value ($000) $753 Avg Close — Range —
Q3 2013
Shares 30,556 Value ($000) $774 Avg Close — Range —
Q2 2013
Shares 31,056 Value ($000) $743 Avg Close — Range —