SUPERTEX INC

CUSIP: 868532102 Class: COM

NEEDHAM INVESTMENT MANAGEMENT LLC's Holding History (CIK: 0001167212)

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

Q1 2014
Shares 66,050 Value ($000) $2,178 Avg Close — Range —
Q4 2013
Shares 56,500 Value ($000) $1,416 Avg Close — Range —
Q3 2013
Shares 44,500 Value ($000) $1,128 Avg Close — Range —
Q2 2013
Shares 44,500 Value ($000) $1,064 Avg Close — Range —