SUPERIOR DRILLING PRODS INC

CUSIP: 868153107 Class: COMMON

OBERWEIS ASSET MANAGEMENT INC/'s Holding History (CIK: 0000937886)

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

Q4 2014
Shares 67,000 Value ($000) $279 Avg Close — Range —
Q3 2014
Shares 67,000 Value ($000) $421 Avg Close — Range —
Q2 2014
Shares 92,400 Value ($000) $602 Avg Close — Range —