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Disclosery

MG MISTRAS GROUP INC

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COMMON STOCK (common), issuer CIK 1436126

108 managers (109 13F filers) reported a position in MG shares at 2024-12-31, 14,834,663 shares in all. 17 filers opened a position and 15 filers sold out during the quarter.

Managers
108
13F filers
109
New
17
Added
35
Reduced
35
Sold out
15
Shares held by filers
14,834,663

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

Each filer's latest stake. The shares are the aggregate the reporting persons state, which can include entities that file no 13F.

Insider trades

The latest Form 4 transactions, non-derivative.
OwnerDateSharesPriceFiling
Vahaviolos Aspasia Felice10% owner2026-09-10+387,093 G$0Form 4/A

13F holders, Q4 2024

Filers in the available 13F reports with a share position at 2024-12-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
Mill Road Capital Management LLCin group Mill Road Capital Management …1,724,482$15.6M7.5%+125,33713F-HRTimelineGroup
BlackRock, Inc.in group BlackRock, Inc.1,480,364$13.4M<0.01%-60,92513F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP1,461,339$13.2M<0.01%+102,66513F-HRTimelineGroup
ROYCE & ASSOCIATES LP1,441,967$13.1M0.12%+124,27013F-HRTimeline
VANGUARD GROUP INCin group VANGUARD GROUP INC1,220,615$11.1M<0.01%-14,36313F-HRTimelineGroup
FEDERATED HERMES, INC.in group FEDERATED HERMES, INC.680,752$6.17M0.01%-1,35413F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC455,532$4.13M<0.01%+2,14313F-HRTimelineGroup
BRIDGEWAY CAPITAL MANAGEMENT, LLC420,552$3.81M0.09%+6,18813F-HRTimeline
Foundry Partners, LLC379,023$3.43M0.17%-69013F-HRTimeline
Price Jennifer C.356,819$3.23M4.28%-150,34113F-HRTimeline
STATE STREET CORPin group STATE STREET CORP317,079$2.87M<0.01%-50013F-HRTimelineGroup
Pacific Ridge Capital Partners, LLC314,417$2.85M0.65%-3,38813F-HRTimeline
Acuitas Investments, LLC292,264$2.65M2.17%013F-HRTimeline
Invenomic Capital Management LP283,509$2.57M0.14%-31,48513F-HRTimeline
JACOBS LEVY EQUITY MANAGEMENT, INC219,075$1.98M0.01%+94,98413F-HRTimeline
Empowered Funds, LLC203,302$1.84M0.03%+9,78813F-HRTimeline
JB CAPITAL PARTNERS LP202,243$1.83M0.35%013F-HRTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP160,870$1.46M<0.01%-4,41113F-HRTimelineGroup
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\160,755$1.46M<0.01%+4,65513F-HR/ATimelineGroup
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC160,087$1.45M<0.01%+110,91613F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC158,612$1.44M<0.01%+46,01313F-HRTimelineGroup
RENAISSANCE TECHNOLOGIES LLC154,500$1.4M<0.01%-21,70013F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY136,211$1.23M<0.01%-73,70213F-HR/ATimelineGroup
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC128,962$1.17M<0.01%new13F-HRTimelineGroup
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPin group ARROWSTREET CAPITAL, LIMITED …108,530$983K<0.01%-106,27213F-HRTimelineGroup
LAWSON KROEKER INVESTMENT MANAGEMENT IN…104,271$945K0.18%-2,41513F-HRTimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC103,491$938K<0.01%-19,03113F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC99,763$904K<0.01%+29,45413F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO93,667$849K<0.01%+31,15513F-HRTimelineGroup
Assenagon Asset Management S.A.87,255$791K<0.01%-10,55313F-HRTimeline
Nuveen Asset Management, LLCin group TIAA79,017$716K<0.01%013F-HRTimelineGroup
GSA CAPITAL PARTNERS LLP77,146$699K0.05%+25,34913F-HRTimeline
MARSHALL WACE, LLPin group MARSHALL WACE, LLP76,093$689K<0.01%+7,30813F-HRTimelineGroup
Squarepoint Ops LLCin group Squarepoint Ops LLC67,820$614K<0.01%+29,08613F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp63,851$578K<0.01%+2,03313F-HRTimelineGroup
UBS Group AGin group UBS Group AG61,335$556K<0.01%+42,99213F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co58,246$528K<0.01%013F-HRTimelineGroup
RBF Capital, LLC58,000$525K0.03%-10,56113F-HRTimeline
STRS OHIO51,900$470K<0.01%+2,10013F-HRTimeline
TWO SIGMA INVESTMENTS, LPgroup of 2 filers holding51,485$466K-11,040Timeline
O'SHAUGHNESSY ASSET MANAGEMENT, LLC49,727$451K<0.01%-5,30413F-HRTimeline
Invesco Ltd.in group Invesco Ltd.46,663$423K<0.01%-339,83913F-HRTimelineGroup
Inspire Investing, LLCgroup of 2 filers holding46,004$417K-33,792Timeline
Qube Research & Technologies Ltd44,393$402K<0.01%+16,11013F-HRTimeline
Values First Advisors, Inc.43,638$395K0.22%+60213F-HRTimeline
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC42,117$380K<0.01%new13F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC39,706$360K<0.01%+1,94613F-HR/ATimelineGroup
Sterling Capital Management LLC38,772$351K<0.01%-52,72313F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…37,951$344K<0.01%+17,40313F-HRTimelineGroup
Connor, Clark & Lunn Investment Managem…32,437$294K<0.01%-69,77813F-HRTimeline
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC32,374$293K<0.01%+8,49913F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/31,881$289K<0.01%-9,44013F-HRTimelineGroup
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.30,271$274K<0.01%new13F-HRTimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS28,929$262K<0.01%+2,76413F-HRTimelineGroup
BAILARD, INC.28,138$255K0.01%-1,95313F-HRTimeline
HRT FINANCIAL LP27,906$252K<0.01%new13F-HRTimeline
Trexquant Investment LP27,619$250K<0.01%+6,64213F-HRTimeline
RITHOLTZ WEALTH MANAGEMENT25,712$233K0.01%-2,22313F-HRTimeline
XTX Topco Ltdin group XTX Topco Ltd24,377$221K0.02%+11,11313F-HRTimelineGroup
NJ State Employees Deferred Compensatio…24,000$217K0.03%013F-HRTimeline
Engineers Gate Manager LP23,193$210K<0.01%+11,45213F-HRTimeline
RHUMBLINE ADVISERS23,020$209K<0.01%-32413F-HR/ATimeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC22,822$207K<0.01%+4,63213F-HRTimelineGroup
LSV ASSET MANAGEMENT22,100$200K<0.01%013F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA21,846$198K<0.01%+8,20513F-HRTimelineGroup
OLD NATIONAL BANCORP /IN/20,000$181K<0.01%013F-HRTimeline
CITIGROUP INCin group CITIGROUP INC17,364$157K<0.01%+1,15013F-HRTimelineGroup
Hillsdale Investment Management Inc.17,300$157K0.01%-6,60013F-HRTimeline
SIMPLEX TRADING, LLC15,823$143K<0.01%+13,39513F-HRTimeline
ALGERT GLOBAL LLC15,330$139K<0.01%new13F-HR/ATimeline
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF O…14,983$136K<0.01%+2,40013F-HRTimeline
MACKENZIE FINANCIAL CORP13,872$126K<0.01%new13F-HR/ATimeline
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC13,642$124K<0.01%new13F-HR/ATimelineGroup
WEALTH ENHANCEMENT ADVISORY SERVICES, L…12,690$115K<0.01%-5,94013F-HR/ATimeline
Heron Bay Capital Management12,388$112K0.02%-3,04413F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN12,312$112K<0.01%-20,72413F-HRTimelineGroup
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…11,996$109K<0.01%+53213F-HRTimelineGroup
MetLife Investment Management, LLCin group MetLife Investment Management…11,864$107K<0.01%013F-HRTimelineGroup
EntryPoint Capital, LLC11,264$102K0.04%new13F-HRTimeline
SHERBROOKE PARK ADVISERS LLC10,583$95.9K0.03%new13F-HRTimeline
Corebridge Financial, Inc.in group Corebridge Financial, Inc.10,430$94.5K<0.01%-78713F-HRTimelineGroup
NEW YORK STATE COMMON RETIREMENT FUND6,776$61.4K<0.01%013F-HR/ATimeline
Police & Firemen's Retirement System of…5,604$50.8K<0.01%13F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…5,379$48.7K<0.01%+4,39613F-HRTimelineGroup
TD Waterhouse Canada Inc.2,870$26K<0.01%013F-HRTimeline
US BANCORP \DE\in group US BANCORP \DE\1,976$17.9K<0.01%013F-HRTimelineGroup
Legal & General Group Plcin group Legal & General Group Plc1,873$17K<0.01%013F-HRTimelineGroup
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…1,720$15.6K<0.01%013F-HRTimelineGroup
R Squared Ltd1,701$15.4K0.01%13F-HRTimeline
CWM, LLCin group CWM, LLC1,547$14K<0.01%+1,40213F-HRTimelineGroup
CALIFORNIA STATE TEACHERS RETIREMENT SY…1,504$13.6K<0.01%013F-HR/ATimeline
FMR LLCin group FMR LLC1,337$12.1K<0.01%-4313F-HRTimelineGroup
Investors Research Corp800$7.25K<0.01%013F-HRTimeline
Key Financial Inc785$7.11K<0.01%013F-HRTimeline
AMALGAMATED BANK702$6K<0.01%013F-HRTimeline
MEEDER ASSET MANAGEMENT INCin group Meeder Advisory Services, Inc.614$5.56K<0.01%new13F-HRTimelineGroup
GROUP ONE TRADING LLC333$3.02K<0.01%new13F-HR/ATimeline
HARBOR CAPITAL ADVISORS, INC.330$3K<0.01%-513F-HRTimeline
Arax Advisory Partners320$2.9K<0.01%013F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.260$2.36K<0.01%-4013F-HR/ATimelineGroup
True Wealth Design, LLC117$1.06K<0.01%new13F-HRTimeline
Quent Capital, LLC106$960<0.01%-1,37313F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…38$344<0.01%new13F-HRTimelineGroup
GAMMA Investing LLC17$154<0.01%new13F-HRTimeline
IFP Advisors, Inc16$145<0.01%new13F-HRTimeline
Archer Investment Corp10$91<0.01%013F-HRTimeline
CONCOURSE FINANCIAL GROUP SECURITIES, I…0$00%013F-HRTimelineValue filed as zero, left out of ratios. Amount filed as zero, left out of ratios.
MACQUARIE GROUP LTDin group MACQUARIE GROUP LTD5,290$48new13F-HRTimelineGroupValue about 1/1,000 of the price other filers imply, kept as filed and left out of ratios.

Events

  • Vahaviolos Aspasia Felice acquired 387,093 MG shares on 2026-09-10, Form 4/A filed 2026-10-07. 0002082296-26-000011

    Accepted , ingested

  • Foglia Stephanie Athena and 2 other reporting persons reported 6,084,508 MG shares, 19.1% of the class, as of 2026-09-17, in a 13D/A filed 2026-10-07. 0001104659-26-114355

    Accepted , ingested