PERCEPTRON INC

CUSIP: 71361F100 Class: COMMON STOCK

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

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

Q4 2017
Shares 32,600 Value ($000) $342 Avg Close — Range —
Q3 2017
Shares 32,300 Value ($000) $255 Avg Close — Range —
Q2 2017
Shares 32,300 Value ($000) $235 Avg Close — Range —
Q1 2017
Shares 35,000 Value ($000) $292 Avg Close — Range —