SUPERTEX INC

CUSIP: 868532102 Class: COM

Swiss National Bank's Holding History (CIK: 0001582202)

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

Q1 2014
Shares 8,100 Value ($000) $267 Avg Close — Range —
Q4 2013
Shares 5,500 Value ($000) $138 Avg Close — Range —
Q3 2013
Shares 5,500 Value ($000) $139 Avg Close — Range —
Q2 2013
Shares 6,500 Value ($000) $155 Avg Close — Range —