Mistras Group

MG • NYSE

Mistras Group is a security & protection services company in the industrials sector on NYSE, led by Natalia Shuman-Fabbri, with a market cap of $388.4M. As of Q3 2025, 108 institutional investors hold shares in this company, with total holdings valued at $156.6M. Mill Road Capital Management LLC is the largest holder with a position valued at $16.5M.

President and Chief Executive OfficerNatalia Shuman-Fabbri

Market Cap$388.4M

Security & Protection Services

Industrials

Employees4.8K

Websitemistrasgroup.com

Country

United States of America

Overview

Overview of institutional ownership in MG as of Q3 2025 with a market cap of $310.3M

All Institutions

Institutions: 108
Value Held: $156.6M
Shares Held: 15.9M
Avg Position: $1.4M
Median Position: $294.0K

Hedge Funds

Hedge Funds: 18
Value Held: $31.7M
Shares Held: 3.2M
Avg Position: $1.8M
Median Position: $912.7K

Ownership Breakdown

Institutional (non-HF)

40.25%

$124.9M

Hedge Funds

10.21%

$31.7M

Retail & Other

49.54%

$153.7M

Based on market cap of $310.3M as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.

Biggest Investors

Institutions with the largest positions in MG as of Q3 2025

Institution	Key People	Position Value	Ownership	Owned Since	Total AUM (Long)
M Mill Road Capital Management LLC Private Equity	Thomas Edward Lynch Chairman	$16.5M 8.58% of portfolio	5.30% 1.7M shares	Q4 2020 Held for 4y 11m	$191.8M
DIMENSIONAL FUND ADVISORS LP Long Only Manager	David Paul Butler CEO	$16.1M 0.00% of portfolio	5.18% 1.6M shares	≤ Q2 2013 Held for 12y 5m+	$466.32B
R ROYCE & ASSOCIATES LLC Institution	-	$13.2M 0.13% of portfolio	4.26% 1.3M shares	Q3 2017 Held for 8y 2m	$10.0B
VANGUARD GROUP INC Institution	Salim Ramji CEO	$11.5M 0.00% of portfolio	3.69% 1.2M shares	≤ Q2 2013 Held for 12y 5m+	$6.69T
B BlackRock, Inc. Institution	-	$10.4M 0.00% of portfolio	3.36% 1.1M shares	≤ Q2 2013 Held for 12y 5m+	$5.67T
C Clearline Capital LP Hedge Fund•Event Driven	Mohit Bhasin CFO	$6.9M 0.58% of portfolio	2.22% 698.8K shares	Q1 2025 Held for 8 months	$1.2B
FEDERATED INVESTORS INC /PA/ Long Only Manager	Gregory Philip Dulski Chairman	$6.7M 0.01% of portfolio	2.16% 680.2K shares	Q1 2020 Held for 5y 8m	$56.6B
A Acuitas Investments, LLC Fund of Funds	Lisa Marie Thenell COO	$6.3M 4.06% of portfolio	2.04% 643.5K shares	Q2 2023 Held for 2y 5m	$155.8M
I Invenomic Capital Management LP Hedge Fund•Long/Short	Benjamin Robert Deschaine President	$4.6M 0.24% of portfolio	1.50% 472.5K shares	Q3 2025 Held for 2 months	$1.9B
J J. Goldman & Co LP Hedge Fund•Multi-Strategy	Jay Glenn Goldman CEO	$4.2M 0.16% of portfolio	1.34% 421.9K shares	Q1 2025 Held for 8 months	$2.6B

Net Capital Flow

Institutional buying and selling activity for MG in Q3 2025

Traded: +$3.2M
Buyers: 41
Sellers: 56
Total Bought: +$17.1M
Total Sold: −$13.8M
Avg Position: $1.3M

Biggest Buyers

Institution	Net Bought	Current Position
I Invenomic Capital Management LP Hedge Fund•Long/Short	+$4.6M +472.5K shares	$4.6M 472.5K shares
A Acuitas Investments, LLC Fund of Funds	+$2.2M +219.4K shares	$6.3M 643.5K shares
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	+$1.4M +141.7K shares	$2.4M 240.3K shares
GOLDMAN SACHS GROUP INC Institution	+$1.2M +119.8K shares	$1.7M 175.3K shares
MILLENNIUM MANAGEMENT LLC Hedge Fund•Multi-Strategy	+$1.2M +117.3K shares	$3.5M 357.5K shares
BANK OF AMERICA CORP /DE/ Institution	+$884.8K +89.9K shares	$1.1M 112.6K shares
GSA CAPITAL PARTNERS LLP Hedge Fund•Quant	+$845.6K +85.9K shares	$845.6K 85.9K shares
R ROYCE & ASSOCIATES LLC Institution	+$703.5K +71.5K shares	$13.2M 1.3M shares
J JANE STREET GROUP, LLC Institution	+$568.2K +57.7K shares	$955.2K 97.1K shares
FIRST TRUST ADVISORS LP ETF Provider	+$546.0K +55.5K shares	$546.0K 55.5K shares

Biggest Sellers

Institution	Net Sold	Current Position
J J. Goldman & Co LP Hedge Fund•Multi-Strategy	−$3.4M −342.0K shares	$4.2M 421.9K shares
B BlackRock, Inc. Institution	−$1.6M −165.9K shares	$10.4M 1.1M shares
C CSM Advisors, LLC Institution	−$936.0K −95.1K shares	$2.6M 268.9K shares
RENAISSANCE TECHNOLOGIES LLC Hedge Fund•Quant	−$789.2K −80.2K shares	$1.8M 180.8K shares
JACOBS LEVY EQUITY MANAGEMENT, INC Hedge Fund•Quant	−$755.5K −76.8K shares	$1.4M 147.1K shares
ARROWSTREET CAPITAL LIMITED PARTNERSHIP Hedge Fund•Quant	−$702.4K −71.4K shares	$806.2K 81.9K shares
A Assenagon Asset Management S.A. Institution	−$680.9K −69.2K shares	$177.7K 18.1K shares
AMERIPRISE FINANCIAL INC Institution	−$635.2K −64.6K shares	$1.0M 103.4K shares
X XTX Topco Ltd Institution	−$454.6K −56.8K shares	Sold Off 0 shares
H HRT FINANCIAL LLC Institution	−$385.3K −48.1K shares	Sold Off 0 shares

Entry and Exit Activity

Institutions that initiated new positions or completely exited MG in Q3 2025

New Positions: 5
New Value: $895.3K
Exited Positions: 11
Exited Value: $1.7M

New Positions

Institution	Position Value
FIRST TRUST ADVISORS LP ETF Provider	$546.0K 55.5K shares
FRANKLIN RESOURCES INC Institution	$313.3K 31.8K shares
J JONES FINANCIAL COMPANIES LLLP Institution	$33.2K 3.4K shares
O Optiver Holding B.V. Institution	$2.7K 270.0 shares
S SBI Securities Co., Ltd. Institution	$276.0 28.0 shares

Exited Positions

Institution	Previous Position
X XTX Topco Ltd Institution	$454.6K 56.8K shares
H HRT FINANCIAL LLC Institution	$385.3K 48.1K shares
D Dynamic Technology Lab Private Ltd Institution	$282.4K 35.3K shares
BALYASNY ASSET MANAGEMENT LLC Hedge Fund•Multi-Strategy	$155.3K 19.4K shares
E EVERGREEN CAPITAL MANAGEMENT LLC Institution	$136.2K 17.0K shares
Engineers Gate Manager LP Hedge Fund•Quant	$115.0K 14.4K shares
VICTORY CAPITAL MANAGEMENT INC Long Only Manager	$114.6K 14.3K shares
C Campbell & CO Investment Adviser LLC Hedge Fund•Quant Macro	$80.8K 10.1K shares
$US BANCORP \DE\ logo$ US BANCORP \DE\ Institution	$14.4K 1.8K shares
LAZARD ASSET MANAGEMENT LLC Long Only Manager	$6.0K 746.0 shares

Options Activity

Institutions with the largest Call and Put options positions in MG as of Q3 2025

Call Positions: 4
Call Value: $1.9M
Put Positions: 3
Put Value: $1.3M

Call Positions

Institution	Position Value
P PEAK6 LLC Institution	$1.5M 1.6K contracts
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$338.5K 344.0 contracts
J JANE STREET GROUP, LLC Institution	- - contracts
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	- - contracts

Put Positions

Institution	Position Value
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$573.7K 583.0 contracts
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$450.7K 458.0 contracts
J JANE STREET GROUP, LLC Institution	$237.1K 241.0 contracts

Most Committed Institutions

Institutions with MG as the highest % of their portfolio as of Q3 2025

Institution	Key People	Portfolio Weight	Ownership	Owned Since	Total AUM (Long)
M Mill Road Capital Management LLC Private Equity	Thomas Edward Lynch Chairman	8.58% $16.5M	5.30% 1.7M shares	Q4 2020 Held for 4y 11m	$191.8M
A Acuitas Investments, LLC Fund of Funds	Lisa Marie Thenell COO	4.06% $6.3M	2.04% 643.5K shares	Q2 2023 Held for 2y 5m	$155.8M
Pacific Ridge Capital Partners, LLC Long Only Manager	Mark Daniel Cooper President	0.62% $2.9M	0.92% 290.7K shares	Q2 2019 Held for 6y 5m	$460.6M
C Clearline Capital LP Hedge Fund•Event Driven	Mohit Bhasin CFO	0.58% $6.9M	2.22% 698.8K shares	Q1 2025 Held for 8 months	$1.2B
J JB CAPITAL PARTNERS LP Hedge Fund•Value	Alan Wayne Weber CCO	0.34% $2.0M	0.64% 202.2K shares	Q1 2021 Held for 4y 8m	$584.1M
I Invenomic Capital Management LP Hedge Fund•Long/Short	Benjamin Robert Deschaine President	0.24% $4.6M	1.50% 472.5K shares	Q3 2025 Held for 2 months	$1.9B
Values First Advisors, Inc. RIA/Wealth	Larry Alexander Ellis CEO	0.23% $419.1K	0.14% 42.6K shares	Q1 2020 Held for 5y 8m	$186.1M
J J. Goldman & Co LP Hedge Fund•Multi-Strategy	Jay Glenn Goldman CEO	0.16% $4.2M	1.34% 421.9K shares	Q1 2025 Held for 8 months	$2.6B
R ROYCE & ASSOCIATES LLC Institution	-	0.13% $13.2M	4.26% 1.3M shares	Q3 2017 Held for 8y 2m	$10.0B
B BRIDGEWAY CAPITAL MANAGEMENT INC Long Only Manager	John Noland Ryan Montgomery CEO	0.09% $4.0M	1.29% 408.3K shares	Q3 2018 Held for 7y 2m	$4.7B

Hedge Fund Spotlight

Discover hedge funds investing in MG

GSA CAPITAL PARTNERS LLP

Hedge Fund • Quant

Portfolio ManagerDavid Khabie-Zeitoune

Portfolio Value: $1.1B
Positions: 1,504
Last Reported: Q3 2025

Sector Allocation

Position in Mistras Group

Market Value: $845.6K
Shares Held: 85.9K
Portfolio Weight: 0.07%
Owned Since: 2023-Q3

Top Holding	Sector	Market Value	Weight
1 Accenture ACN	Information Technology Services Technology	$5.6M	0.50%
2 Sprouts Farmers Market SFM	Grocery Stores Consumer Defensive	$5.2M	0.46%
3 Microsoft MSFT	Software - Infrastructure Technology	$4.8M	0.43%