SUPERTEX INC

CUSIP: 868532102 Class: COM

DIMENSIONAL FUND ADVISORS LP's Holding History (CIK: 0000354204)

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

Q1 2014
Shares 438,864 Value ($000) $14,474 Avg Close — Range —
Q4 2013
Shares 436,311 Value ($000) $10,930 Avg Close — Range —
Q3 2013
Shares 421,848 Value ($000) $10,690 Avg Close — Range —
Q2 2013
Shares 421,234 Value ($000) $10,072 Avg Close — Range —