Mistras Group Inc

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Mistras Group Inc
TickerMG
CIK #0001436126
CUSIP60649T107
SectorTrade & Services - Services-Engineering Services
Address195 Clarksville Road, Princeton Junction, NJ 08550
Source [EDGAR]
CIK Filing 2011 - 2025
[0001436126] 10-K
[0001436126] 10-Q
[0001436126] 3
[0001436126] 4
[0001436126] 5
[0001436126] 8-K
[0001436126] SC 13D
[0001436126] SC 13G
Form 13D/13G Filer Form 13D/13G Subject Filed % Owned
Dimensional Fund Advisors LP Mistras Group Inc [2025-07-15] 0.0
Mill Road Capital III LP Mistras Group Inc [2024-07-09] 81945.2
Sotirios Vahaviolos January 2023 2-Year Grantor Retained Annuity Trust Mistras Group Inc [2024-02-14] 22.0
Vahaviolos Sotirios J Mistras Group Inc [2023-02-07] 0.0
Sotirios Vahaviolos January 2023 2-Year Grantor Retained Annuity Trust Mistras Group Inc [2023-01-26] 22.5
Vahaviolos Sotirios J Mistras Group Inc [2022-02-09] 0.0
Mistras Group Inc Mistras Group Inc [2020-02-13] 0.0
Dimensional Fund Advisors LP Mistras Group Inc [2020-02-12] 5.05
Broad Run Investment Management LLC Mistras Group Inc [2018-02-15] 5.5
Vanguard Group Inc Mistras Group Inc [2018-02-09] 5.03
Vanguard Group Inc Mistras Group Inc [2018-02-09] 5.03
Wellington Management Group LLP Mistras Group Inc [2015-02-12] 5.57
RBC Global Asset Management US Mistras Group Inc [2015-02-04] 5.2
Smallcap World Fund Inc Mistras Group Inc [2014-02-14] 5.1
Form 3/4/5 Filer 2011 - 2025
Stamatakis Manuel N.
Mistras Group, Inc.
Lohmeier Michelle
Pizzi Charles P
Forese James J
Debenedictis Nicholas
Glanton Richard H
D'Alterio Gennaro A.
Keefe Michael C
Prajzner Edward J
Hammad Hanei Wail
Shuman-Fabbri Natalia
Lange Michael J.
Vahaviolos Sotirios J.
Sotirios Vahaviolos January 2023 2-Year Grantor Retained Ann
Smith John Anthony
Bertolotti Dennis
Wolk Jonathan H
Weldon Wayne Curtis
Carlos Mark F.
Ruff Ellen T
Genesi Ralph L.
Dickinson Daniel M
Vogel Justin
Orlando Philip
Joyce Francis T
Cole Phillip T.
Form 13F Holdings
Firm Period DFND Voting Shares
Mill Road Capital Management LLC [2025-06-30] OTR 0 1,667,681
Dimensional Fund Advisors LP [2025-06-30] SOLE 1,502,512 1,539,463
Royce & Associates LP [2025-06-30] SOLE 1,271,257 1,271,257
BlackRock, Inc. [2025-06-30] SOLE 1,187,083 1,224,158
Vanguard Group Inc [2025-06-30] SOLE 0 1,180,054
J Goldman & Co LP [2025-06-30] SOLE 763,891 763,891
Clearline Capital LP [2025-06-30] SOLE 698,849 698,849
Federated Hermes Inc [2025-06-30] DFND 680,825 680,825
Acuitas Investments LLC [2025-06-30] OTR 0 424,062
Bridgeway Capital Management LLC [2025-06-30] SOLE 418,737 418,737
Geode Capital Management LLC [2025-06-30] DFND 417,753 417,753
State Street Corp [2025-06-30] DFND 386,366 407,466
Susquehanna International Group LLP [2025-06-30] OTR 39,641 400,441
Pacific Ridge Capital Partners LLC [2025-06-30] SOLE 198,450 296,617
Citadel Advisors LLC [2025-06-30] DFND 273,219 273,219
Renaissance Technologies LLC [2025-06-30] SOLE 261,000 261,000
Millennium Management LLC [2025-06-30] SOLE 240,179 240,179
Empowered Funds LLC [2025-06-30] OTR 229,687 229,687
Jacobs Levy Equity Management Inc [2025-06-30] SOLE 200,767 223,928
Northern Trust Corp [2025-06-30] DFND 204,888 204,888
JB Capital Partners LP [2025-06-30] SOLE 0 202,243
Ameriprise Financial Inc [2025-06-30] DFND 0 167,948
Deutsche Bank AG [2025-06-30] DFND 156,100 163,340
Arrowstreet Capital Limited Partnership [2025-06-30] DFND 153,312 153,312
Morgan Stanley [2025-06-30] DFND 128,763 147,965
Jane Street Group LLC [2025-06-30] DFND 60,435 114,235
D. E. Shaw & Co., Inc. [2025-06-30] DFND 113,793 113,793
Qube Research & Technologies Ltd [2025-06-30] SOLE 111,824 111,824
Squarepoint Ops LLC [2025-06-30] DFND 0 97,513
Royal Bank of Canada [2025-06-30] DFND 75,229 90,149
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