MISTRAS GROUP INC MG
COM · Common Stock · CUSIP 60649T107
- SectorIndustrials
- IndustryServices-Engineering Services
- HeadquartersPrinceton Junction, NJ
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($2.0m this quarter). Holder counts are more reliable. Shares outstanding: 30.3m as of 2023-08-03, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $7.72. Options: 4 managers hold calls ($154.0k notional), 2 hold puts ($157.5k).
Trends to Q2 2023
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 67 |
| Q4 2022 | 62 |
| Q1 2023 | 63 |
| Q2 2023 | 80 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q4 2022 | 15 | 39 |
| Q1 2023 | 38 | 17 |
| Q2 2023 | 47 | 26 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2022 | $63.0k | $0 | 0.00 |
| Q4 2022 | $24.2k | $493 | 0.02 |
| Q1 2023 | $53.8k | $86.1k | 1.60 |
| Q2 2023 | $154.0k | $157.5k | 1.02 |
Biggest buyers
| BlackRock Inc. | Added | +925.3k |
| Acuitas Investments, LLC | New | +254.0k |
| GEODE CAPITAL MANAGEMENT, LLC | Added | +224.2k |
| Hillsdale Investment Management Inc. | Added | +216.7k |
| STATE STREET CORP | Added | +196.9k |
| VANGUARD GROUP INC | Added | +138.8k |
| Empowered Funds, LLC | New | +131.8k |
| NORTHERN TRUST CORP | Added | +128.0k |
| Nuveen Asset Management, LLC | New | +107.5k |
| DIMENSIONAL FUND ADVISORS LP | Added | +87.8k |
Biggest sellers
| Broad Run Investment Management, LLC | Sold out | -387.5k |
| MILLENNIUM MANAGEMENT LLC | Reduced | -260.3k |
| Informed Momentum Co LLC | Sold out | -254.1k |
| GRATIA CAPITAL, LLC | Sold out | -196.7k |
| Invenomic Capital Management LP | Reduced | -189.1k |
| ROYCE & ASSOCIATES LP | Reduced | -113.7k |
| LAWSON KROEKER INVESTMENT MANAGEMENT INC/NE | Reduced | -107.8k |
| D. E. Shaw & Co., Inc. | Reduced | -66.7k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | -48.0k |
| KENNEDY CAPITAL MANAGEMENT LLC | Reduced | -45.9k |
Biggest calls
| CITADEL ADVISORS LLC | Added | $87.2k11.3k shares |
| GROUP ONE TRADING LLC | Added | $34.7k4.5k shares |
| SIMPLEX TRADING, LLC | Added | $32.0k4.2k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Biggest puts
| CITADEL ADVISORS LLC | Added | $157.5k20.4k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| Vahaviolos Aspasia Felice 13G · passive investor -0.1 pts · filed 2026-08-13 | 19.2% |
Foglia Stephanie Athena
13D · may seek influence
no change · filed 2026-10-07
Stated purposeItem 4 of the Schedule 13D is hereby amended and restated in its entirety as follows: On September 17, 2026, the Issuer entered into an Agreement and Plan of Merger (the "Merger Agreement") with Athena Purchaser, LLC ("Parent") and Athena Merger Sub, Inc., a wholly owned subsidiary of Parent ("Merger Sub"). The Merger Agreement provides that, upon the terms and subject to the conditions set forth therein, Merger Sub will merge with and into the Issuer, with the Issuer surviving the merger as a wholly owned subsidiary of Parent (the "Merger"). At the effective time of the Merger (the "Effective Time"), each share of common stock, par value $0.01 per share, of the Issuer ("Common Stock") issued and outstanding immediately prior to the Effective Time (other than shares held by Parent, Merger… Full filing |
19.1% |
| Mill Road Capital III, L.P. 13D · may seek influence +0.2 pts · filed 2026-09-18 | 6.1% |
| DIMENSIONAL FUND ADVISORS LP 13G · institution new · filed 2025-07-15 | 5.2% |
| Kyriakopoulos Kristy Vahaviolos 13G · passive investor -0.2 pts · filed 2026-03-31 | 5.1% |
Insider purchases and sales in Q2 2023
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q3 2021 | 0 | — | 0 | — | — |
| Q4 2021 | 0 | — | 0 | — | — |
| Q1 2022 | 1 | $4.8k | 0 | — | — |
| Q2 2022 | 0 | — | 0 | — | — |
| Q3 2022 | 0 | — | 0 | — | — |
| Q4 2022 | 0 | — | 0 | — | — |
| Q1 2023 | 0 | — | 0 | — | — |
| Q2 2023 | 0 | — | 0 | — | — |
None reported in Q2 2023.
Holders, Q2 2023
| Manager | Shares | Change |
|---|---|---|
| Price Jennifer C. 3.93% of their portfolio | 1.5m $11.4m | Unchanged |
| Mill Road Capital Management LLC 6.18% of their portfolio | 1.5m $11.4m | Unchanged |
| BlackRock Inc. 0.00% of their portfolio | 1.4m $10.7m | Added +925.3k |
| ROYCE & ASSOCIATES LP 0.09% of their portfolio | 1.3m $9.7m | Reduced -113.7k |
| DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio | 1.2m $9.3m | Added +87.8k |
| VANGUARD GROUP INC 0.00% of their portfolio | 1.2m $9.0m | Added +138.8k |
| Invenomic Capital Management LP 0.45% of their portfolio | 1.0m $8.1m | Reduced -189.1k |
| FEDERATED HERMES, INC. 0.01% of their portfolio | 709.4k $5.5m | Reduced -10.2k |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.08% of their portfolio | 420.9k $3.2m | Added +4.6k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 385.6k $3.0m | Added +224.2k |
| Pacific Ridge Capital Partners, LLC 0.58% of their portfolio | 331.9k $2.6m | Added +14.2k |
| Foundry Partners, LLC 0.15% of their portfolio | 311.4k $2.4m | Added +42.4k |
| LAWSON KROEKER INVESTMENT MANAGEMENT INC/NE 0.55% of their portfolio | 294.1k $2.3m | Reduced -107.8k |
| Hillsdale Investment Management Inc. 0.19% of their portfolio | 266.8k $2.1m | Added +216.7k |
| STATE STREET CORP 0.00% of their portfolio | 254.2k $2.0m | Added +196.9k |
| Acuitas Investments, LLC 1.14% of their portfolio | 254.0k $2.0m | New |
| JB CAPITAL PARTNERS LP 0.34% of their portfolio | 202.2k $1.6m | Unchanged |
| NORTHERN TRUST CORP 0.00% of their portfolio | 165.6k $1.3m | Added +128.0k |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 156.1k $1.2m | Unchanged |
| Empowered Funds, LLC 0.04% of their portfolio | 131.8k $1.0m | New |
| EA Series Trust 0.04% of their portfolio | 131.8k $1.0m | First filing |
| Nuveen Asset Management, LLC 0.00% of their portfolio | 107.5k $830.2k | New |
| MORGAN STANLEY 0.00% of their portfolio | 96.3k $743.5k | Reduced -346 |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 89.8k $693.4k | Reduced -260.3k |
| TRUIST FINANCIAL CORP 0.00% of their portfolio | 88.7k $684.6k | Unchanged |
| O'SHAUGHNESSY ASSET MANAGEMENT, LLC 0.01% of their portfolio | 80.1k $618.7k | Added +56.8k |
| RBF Capital, LLC 0.04% of their portfolio | 79.8k $616.0k | New |
| RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio | 77.7k $600.0k | Added +31.5k |
| KENNEDY CAPITAL MANAGEMENT LLC 0.01% of their portfolio | 76.6k $591.7k | Reduced -45.9k |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 76.3k $588.7k | Reduced -3.2k |
| Assenagon Asset Management S.A. 0.00% of their portfolio | 75.9k $586.0k | Added +36.2k |
| Verdad Advisers, LP 0.91% of their portfolio | 75.0k $579.0k | New |
| Bank of New York Mellon Corp 0.00% of their portfolio | 65.8k $507.9k | Added +53.1k |
| TWO SIGMA ADVISERS, LP 0.00% of their portfolio | 60.0k $463.4k | Added +1.5k |
| D. E. Shaw & Co., Inc. 0.00% of their portfolio | 58.4k $450.6k | Reduced -66.7k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 54.6k $421.8k | New |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 54.5k $420.6k | Reduced -6.0k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 54.5k $420.6k | Reduced -10.9k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 50.6k $391.0k | Reduced -5.9k |
| TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio | 46.4k $358.3k | Reduced -7.8k |
| Connor, Clark & Lunn Investment Management Ltd. 0.00% of their portfolio | 46.4k $358.3k | Added +18.7k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 39.6k $305.6k | New |
| Values First Advisors, Inc. 0.18% of their portfolio | 38.0k $293.6k | Added +828 |
| Janney Montgomery Scott LLC 0.00% of their portfolio | 36.2k $279.0k | Added +4.2k |
| RITHOLTZ WEALTH MANAGEMENT 0.01% of their portfolio | 31.7k $244.6k | New |
| Trexquant Investment LP 0.01% of their portfolio | 28.2k $217.7k | New |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 24.3k $187.0k | Added +7.3k |
| NJ State Employees Deferred Compensation Plan 0.03% of their portfolio | 24.0k $185.3k | Unchanged |
| JACOBS LEVY EQUITY MANAGEMENT, INC 0.00% of their portfolio | 21.9k $169.1k | Added +2.7k |
| BARCLAYS PLC 0.00% of their portfolio | 21.8k $168.7k | Reduced -3.8k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio | 21.8k $168.5k | Reduced -48.0k |
| OLD NATIONAL BANCORP /IN/ 0.00% of their portfolio | 20.0k $154.4k | Unchanged |
| OCCUDO QUANTITATIVE STRATEGIES LP 0.01% of their portfolio | 18.4k $142.3k | New |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 16.8k $129.3k | Added +15.4k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 13.1k $101.1k | New |
| UBS Group AG 0.00% of their portfolio | 12.4k $95.6k | Added +11.9k |
| Mirae Asset Global Investments Co., Ltd. 0.00% of their portfolio | 12.3k $94.7k | New |
| Jump Financial, LLC 0.00% of their portfolio | 12.1k $93.4k | New |
| Stokes Family Office, LLC 0.01% of their portfolio | 12.0k $92.7k | New |
| MetLife Investment Management, LLC 0.00% of their portfolio | 11.1k $85.5k | New |
| AMERICAN INTERNATIONAL GROUP, INC. 0.00% of their portfolio | 10.0k $77.4k | New |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 7.9k $61.2k | Added +7.8k |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 7.2k $55.8k | New |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 6.9k $53.5k | New |
| Rockefeller Capital Management L.P. 0.00% of their portfolio | 6.7k $51.7k | First filing |
| CITIGROUP INC 0.00% of their portfolio | 6.2k $47.9k | New |
| TD Waterhouse Canada Inc. 0.00% of their portfolio | 2.9k $22.3k | Unchanged |
| AMALGAMATED BANK 0.00% of their portfolio | 2.0k $16.0k | New |
| Legal & General Group Plc 0.00% of their portfolio | 1.9k $14.5k | New |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO 0.00% of their portfolio | 1.8k $14.0k | Unchanged |
| Ameritas Investment Partners, Inc. 0.00% of their portfolio | 1.7k $13.3k | New |
| Metropolitan Life Insurance Co/NY 0.00% of their portfolio | 1.1k $8.9k | New |
| Tower Research Capital LLC (TRC) 0.00% of their portfolio | 937 $7.2k | Reduced -10.4k |
| FIRST MANHATTAN CO. LLC. 0.00% of their portfolio | 800 $6.2k | Unchanged |
| Investors Research Corp 0.00% of their portfolio | 800 $6.2k | Unchanged |
| Key Financial Inc 0.00% of their portfolio | 785 $6.1k | Unchanged |
| Quarry LP 0.00% of their portfolio | 478 $3.7k | New |
| FMR LLC 0.00% of their portfolio | 269 $2.1k | Reduced -153 |
| OSAIC HOLDINGS, INC. 0.00% of their portfolio | 200 $1.5k | Unchanged |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. 0.00% of their portfolio | 0 $0 | Unchanged |