ROGERS CORP

Ticker: ROG CUSIP: 775133101 Class: COM

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

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

Q4 2017

Shares 73,455 Value ($000) $11,894 Avg Close $150.77 Range $131.56 - $168.07

Q3 2017

Shares 104,925 Value ($000) $13,984 Avg Close $118.50 Range $107.24 - $133.85

Q2 2016

Shares 10,300 Value ($000) $629 Avg Close $61.56 Range $56.67 - $67.91

Q1 2016

Shares 8,400 Value ($000) $503 Avg Close $50.37 Range $41.92 - $61.64

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2017	73,455	$11,894	$150.77	$131.56 - $168.07
Q3 2017	104,925	$13,984	$118.50	$107.24 - $133.85
Q2 2016	10,300	$629	$61.56	$56.67 - $67.91
Q1 2016	8,400	$503	$50.37	$41.92 - $61.64