MISTRAS GROUP INC

Ticker: MG CUSIP: 60649T107 Class: Common Stock

GROUP ONE TRADING, L.P.'s Holding History (CIK: 0000932540)

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

Q4 2024

Shares 333 Value ($000) $3 Avg Close $9.85 Range $8.10 - $12.44

Q1 2022

Shares 1,128 Value ($000) $7 Avg Close $6.80 Range $5.97 - $8.02

Q3 2021

Shares 4,978 Value ($000) $51 Avg Close $9.87 Range $8.99 - $11.38

Q2 2021

Shares 15,078 Value ($000) $148 Avg Close $10.78 Range $9.34 - $12.37

Q1 2021

Shares 15,190 Value ($000) $173 Avg Close $8.84 Range $6.66 - $12.57

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2024	333	$3	$9.85	$8.10 - $12.44
Q1 2022	1,128	$7	$6.80	$5.97 - $8.02
Q3 2021	4,978	$51	$9.87	$8.99 - $11.38
Q2 2021	15,078	$148	$10.78	$9.34 - $12.37
Q1 2021	15,190	$173	$8.84	$6.66 - $12.57