MISTRAS GROUP INC

Ticker: MG CUSIP: 60649T107 Class: Common Stock

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

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

Q3 2016

Shares 21,200 Value ($000) $498 Avg Close $24.47 Range $22.46 - $25.93

Q2 2016

Shares 21,200 Value ($000) $506 Avg Close $24.44 Range $22.86 - $26.47

Q1 2016

Shares 26,100 Value ($000) $646 Avg Close $22.12 Range $18.55 - $25.97

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2016	21,200	$498	$24.47	$22.46 - $25.93
Q2 2016	21,200	$506	$24.44	$22.86 - $26.47
Q1 2016	26,100	$646	$22.12	$18.55 - $25.97