SUPERTEX INC

CUSIP: 868532102 Class: COM

RATIONAL ADVISORS LLC's Holding History (CIK: 0001143565)

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

Q4 2013
Shares 915 Value ($000) $23 Avg Close — Range —
Q3 2013
Shares 976 Value ($000) $25 Avg Close — Range —
Q2 2013
Shares 976 Value ($000) $23 Avg Close — Range —
Q1 2013
Shares 915 Value ($000) $20 Avg Close — Range —
Q4 2012
Shares 732 Value ($000) $13 Avg Close — Range —
Q3 2012
Shares 549 Value ($000) $10 Avg Close — Range —