MISTRAS GROUP INC

Ticker: MG CUSIP: 60649T107 Class: Common Stock

ADVENT INTERNATIONAL, L.P.'s Holding History (CIK: 0001034196)

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

Q1 2018

Shares 296,495 Value ($000) $5,616 Avg Close $20.65 Range $17.78 - $23.83

Q4 2017

Shares 412,161 Value ($000) $9,673 Avg Close $21.79 Range $19.00 - $23.74

Q3 2017

Shares 433,236 Value ($000) $8,881 Avg Close $20.23 Range $17.00 - $22.84

Q2 2017

Shares 350,000 Value ($000) $7,689 Avg Close $21.52 Range $20.11 - $22.97

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2018	296,495	$5,616	$20.65	$17.78 - $23.83
Q4 2017	412,161	$9,673	$21.79	$19.00 - $23.74
Q3 2017	433,236	$8,881	$20.23	$17.00 - $22.84
Q2 2017	350,000	$7,689	$21.52	$20.11 - $22.97