MISTRAS GROUP INC

Ticker: MG CUSIP: 60649T107 Class: Common Stock

Walleye Trading LLC's Holding History (CIK: 0001388391)

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

Q2 2020

Shares 28,300 Value ($000) $112 Avg Close $4.14 Range $3.00 - $6.34

Q1 2017

Shares 700 Value ($000) $15 Avg Close $22.67 Range $19.49 - $26.46

Q3 2016

Shares 200 Value ($000) $5 Avg Close $24.47 Range $22.46 - $25.93

Q2 2016

Shares 4,000 Value ($000) $95 Avg Close $24.44 Range $22.86 - $26.47

Q1 2016

Shares 3,800 Value ($000) $94 Avg Close $22.12 Range $18.55 - $25.97

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2020	28,300	$112	$4.14	$3.00 - $6.34
Q1 2017	700	$15	$22.67	$19.49 - $26.46
Q3 2016	200	$5	$24.47	$22.46 - $25.93
Q2 2016	4,000	$95	$24.44	$22.86 - $26.47
Q1 2016	3,800	$94	$22.12	$18.55 - $25.97