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Mistras Group, Inc.

MG
Exchange
NYSE
Industry
Services-Engineering Services
SEC CIK
0001436126

No open-market purchases or sales by Mistras Group, Inc. insiders were filed in the last 90 days; 137 institutions reported holding it in 13F filings for Q2 2026, worth $336.7M in total; no superinvestor holds it.

13F holders, Q3 2025

Institutional positions in Mistras Group, Inc. as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
111
+2 vs. Q2 2025
Shares held
15.9M
+288.8K (+1.8%) vs. Q2 2025
Total value
$156.6M
+$31.5M (+25.1%) vs. Q2 2025
New holders
13
30 more added
Sold out
11
45 more reduced

Compare with Q2 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting MG on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ3 2025: 111 institutions
Q1 2021: 86 institutionsQ2 2021: 85 institutionsQ3 2021: 89 institutionsQ4 2021: 87 institutionsQ1 2022: 92 institutionsQ2 2022: 79 institutionsQ3 2022: 67 institutionsQ4 2022: 62 institutionsQ1 2023: 63 institutionsQ2 2023: 79 institutionsQ3 2023: 77 institutionsQ4 2023: 79 institutionsQ1 2024: 83 institutionsQ2 2024: 90 institutionsQ3 2024: 106 institutionsQ4 2024: 108 institutionsQ1 2025: 109 institutionsQ2 2025: 109 institutionsQ3 2025: 111 institutionsQ4 2025: 123 institutionsQ1 2026: 129 institutionsQ2 2026: 137 institutions
Value heldQ3 2025: $156.6M
Q1 2021: $167.4MQ2 2021: $145.8MQ3 2021: $149.3MQ4 2021: $111.6MQ1 2022: $102.9MQ2 2022: $88.7MQ3 2022: $64.6MQ4 2022: $68.4MQ1 2023: $91.4MQ2 2023: $115.2MQ3 2023: $80.3MQ4 2023: $105.2MQ1 2024: $135.7MQ2 2024: $118.9MQ3 2024: $171.0MQ4 2024: $134.4MQ1 2025: $160.3MQ2 2025: $125.2MQ3 2025: $156.6MQ4 2025: $222.4MQ1 2026: $270.0MQ2 2026: $336.7M
Institutions holding MG and their total value by quarter
QuarterHoldersValue
Q2 2026137$336.7M
Q1 2026129$270.0M
Q4 2025123$222.4M
Q3 2025111$156.6M
Q2 2025109$125.2M
Q1 2025109$160.3M
Q4 2024108$134.4M
Q3 2024106$171.0M
Q2 202490$118.9M
Q1 202483$135.7M
Q4 202379$105.2M
Q3 202377$80.3M
Q2 202379$115.2M
Q1 202363$91.4M
Q4 202262$68.4M
Q3 202267$64.6M
Q2 202279$88.7M
Q1 202292$102.9M
Q4 202187$111.6M
Q3 202189$149.3M
Q2 202185$145.8M
Q1 202186$167.4M

Institutions, Q3 2025

Shares, value and share of portfolio for each institution holding Mistras Group, Inc.; share changes are against Q2 2025.

Institutions holding MG in Q3 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Mill Road Capital Management LLC1,672,381$16.5M8.57%+4,700+0.3%Added
Dimensional Fund Advisors LP1,633,327$16.1M0.00%+10,186+0.6%Added
Royce & Associates LP1,342,747$13.2M0.13%+71,490+5.6%Added
Vanguard Group Inc1,165,054$11.5M0.00%−29,939−2.5%Reduced
BlackRock, Inc.1,058,273$10.4M0.00%−165,885−13.6%Reduced
Clearline Capital LP698,849$6.88M0.59%00.0%Unchanged
Federated Hermes, Inc.680,245$6.69M0.01%−580−0.1%Reduced
Acuitas Investments, LLC643,483$6.33M4.06%+219,421+51.7%Added
Invenomic Capital Management LP472,536$4.65M0.24%+472,536New
J. Goldman & Co LP421,920$4.15M0.16%−341,971−44.8%Reduced
Bridgeway Capital Management, LLC408,283$4.02M0.09%−10,454−2.5%Reduced
Geode Capital Management, LLC407,663$4.01M0.00%−10,090−2.4%Reduced
State Street Corp369,400$3.63M0.00%−38,066−9.3%Reduced
Millennium Management LLC357,513$3.52M0.00%+117,334+48.9%Added
Pacific Ridge Capital Partners, LLC290,650$2.86M0.63%−5,967−2.0%Reduced
CSM Advisors, LLC268,851$2.65M0.07%−95,122−26.1%Reduced
Citadel Advisors LLC240,318$2.36M0.00%+141,699+143.7%Added
Empowered Funds, LLC224,633$2.21M0.02%−5,054−2.2%Reduced
Deutsche Bank AG210,040$2.07M0.00%+46,700+28.6%Added
JB Capital Partners LP202,243$1.99M0.34%00.0%Unchanged
Northern Trust Corp194,806$1.92M0.00%−12,629−6.1%Reduced
Renaissance Technologies LLC180,800$1.78M0.00%−80,200−30.7%Reduced
Goldman Sachs Group Inc175,331$1.73M0.00%+119,826+215.9%Added
Jacobs Levy Equity Management, Inc147,146$1.45M0.01%−76,782−34.3%Reduced
D. E. Shaw & Co., Inc.135,797$1.34M0.00%+22,004+19.3%Added
Morgan Stanley112,775$1.11M0.00%−35,190−23.8%Reduced
Bank of America Corp112,560$1.11M0.00%+89,916+397.1%Added
Qube Research & Technologies Ltd104,727$1.03M0.00%−7,097−6.3%Reduced
Ameriprise Financial Inc103,394$1.02M0.00%−64,554−38.4%Reduced
Jane Street Group, LLC97,077$955.2K0.00%+57,742+146.8%Added
Two Sigma Investments, LP96,028$944.9K0.00%+35,721+59.2%Added
Squarepoint Ops LLC89,480$880.5K0.00%−8,033−8.2%Reduced
Gsa Capital Partners LLP85,934$846.0K0.07%+85,934New
Arrowstreet Capital, Limited Partnership81,930$806.2K0.00%−71,382−46.6%Reduced
Martingale Asset Management L P74,038$728.5K0.02%00.0%Unchanged
Royal Bank of Canada70,284$692.0K0.00%−21,123−23.1%Reduced
Nuveen, LLC67,936$668.5K0.00%−11,081−14.0%Reduced
Raiffeisen Bank International AG65,000$643.5K0.01%+10,000+18.2%Added
RBF Capital, LLC58,000$570.7K0.03%00.0%Unchanged
Bank of New York Mellon Corp56,679$557.7K0.00%−2,802−4.7%Reduced
First Trust Advisors LP55,483$546.0K0.00%+55,483New
STRS Ohio53,100$522.5K0.00%00.0%Unchanged
LSV Asset Management51,001$502.0K0.00%00.0%Unchanged
Charles Schwab Investment Management Inc48,249$474.8K0.00%00.0%Unchanged
O'Shaughnessy Asset Management, LLC48,075$473.1K0.00%+12,536+35.3%Added
American Century Companies Inc47,410$466.5K0.00%−88−0.2%Reduced
Two Sigma Advisers, LP44,824$441.1K0.00%+16,400+57.7%Added
Values First Advisors, Inc.42,588$419.1K0.22%−819−1.9%Reduced
Susquehanna International Group, LLP37,562$369.6K0.00%−2,079−5.2%Reduced
Simplex Trading, LLC36,339$357.0K0.01%+33,226+1,067.3%Added
Panagora Asset Management Inc33,864$333.2K0.00%+244+0.7%Added
Invesco Ltd.33,500$329.6K0.00%−4,254−11.3%Reduced
Franklin Resources Inc31,836$313.3K0.00%+31,836New
Inspire Advisors, LLC29,926$294.5K0.03%−16,114−35.0%Reduced
ExodusPoint Capital Management, LP29,828$293.5K0.00%+29,828New
NJ State Employees Deferred Compensation Plan24,000$236.2K0.03%00.0%Unchanged
Barclays PLC23,208$228.4K0.00%−6,316−21.4%Reduced
UBS Group AG22,564$222.0K0.00%−2,395−9.6%Reduced
Ritholtz Wealth Management22,300$219.4K0.00%+7,112+46.8%Added
Lawson Kroeker Investment Management Inc21,362$210.2K0.04%00.0%Unchanged
Wolverine Trading, LLC20,556$203.5K0.00%+20,556New
Voya Investment Management LLC20,560$202.3K0.00%−1,475−6.7%Reduced
Old National Bancorp20,000$196.8K0.00%00.0%Unchanged
Rhumbline Advisers19,765$194.5K0.00%−355−1.8%Reduced
EntryPoint Capital, LLC19,264$189.6K0.07%−7,349−27.6%Reduced
Assenagon Asset Management S.A.18,058$177.7K0.00%−69,197−79.3%Reduced
Raymond James Financial Inc16,717$164.5K0.00%+2,544+17.9%Added
AQR Capital Management LLC15,946$156.9K0.00%+380+2.4%Added
Heron Bay Capital Management15,073$148.3K0.03%+4,604+44.0%Added
Wells Fargo & Company13,622$134.0K0.00%+3,059+29.0%Added
Alliancebernstein L.P.13,580$133.6K0.00%00.0%Unchanged
Public Employees Retirement System of Ohio13,018$128.1K0.00%00.0%Unchanged
Mackenzie Financial Corp10,893$107.2K0.00%−2,979−21.5%Reduced
Price T Rowe Associates Inc10,437$103.0K0.00%00.0%Unchanged
Mirae Asset Global ETFs Holdings Ltd.7,692$75.7K0.00%−1,305−14.5%Reduced
BNP Paribas Arbitrage, SA7,417$73.0K0.00%+1,360+22.5%Added
JPMorgan Chase & Co7,130$70.2K0.00%−755−9.6%Reduced
New York State Common Retirement Fund6,776$66.7K0.00%00.0%Unchanged
MetLife Investment Management5,970$58.7K0.00%−5,817−49.4%Reduced
FMR LLC3,836$37.7K0.00%+1,313+52.0%Added
Rockefeller Capital Management L.P.3,830$37.7K0.00%+3,830New
Police & Firemen's Retirement System of New Jersey3,591$35.3K0.00%−2,013−35.9%Reduced
Jones Financial Companies LLLP3,426$33.2K0.00%+3,426New
LOM Asset Management Ltd3,000$30.0K0.01%00.0%Unchanged
TD Waterhouse Canada Inc.2,870$29.3K0.00%00.0%Unchanged
Citigroup Inc2,560$25.2K0.00%−2,963−53.6%Reduced
Russell Investments Group, Ltd.2,293$22.6K0.00%+2,182+1,965.8%Added
Ameritas Investment Partners, Inc.1,720$16.9K0.00%00.0%Unchanged
New York State Teachers Retirement System1,496$15.0K0.00%−414−21.7%Reduced
Legal & General Group Plc1,521$15.0K0.00%00.0%Unchanged
California State Teachers Retirement System1,505$14.8K0.00%+1+0.1%Added
Tower Research Capital LLC (TRC)1,448$14.2K0.00%−1,356−48.4%Reduced
Sterling Capital Management LLC1,136$11.2K0.00%−6,415−85.0%Reduced
CWM, LLC1,083$11.0K0.00%−540−33.3%Reduced
Investors Research Corp800$7.87K0.00%00.0%Unchanged
Amalgamated Bank702$7.00K0.00%00.0%Unchanged
Nisa Investment Advisors, LLC437$4.30K0.00%00.0%Unchanged
Optiver Holding B.V.270$2.66K0.00%+270New
Advisor Group Holdings, Inc.260$2.56K0.00%00.0%Unchanged
Harbor Capital Advisors, Inc.193$2.00K0.00%+5+2.7%Added