STEPAN CO

Ticker: SCL CUSIP: 858586100 Class: Common Stock

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

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

Q2 2016

Shares 4,700 Value ($000) $280 Avg Close $58.72 Range $54.00 - $63.32

Q1 2016

Shares 9,400 Value ($000) $520 Avg Close $48.10 Range $41.42 - $56.50

Q4 2015

Shares 10,400 Value ($000) $517 Avg Close $50.10 Range $40.72 - $54.87

Q2 2015

Shares 11,500 Value ($000) $622 Avg Close $49.34 Range $41.34 - $55.22

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2016	4,700	$280	$58.72	$54.00 - $63.32
Q1 2016	9,400	$520	$48.10	$41.42 - $56.50
Q4 2015	10,400	$517	$50.10	$40.72 - $54.87
Q2 2015	11,500	$622	$49.34	$41.34 - $55.22