Latest Period
Q1 2026
Security Snapshot
Mistras Group, Inc. - Common Stock, $0.01 par value (MG) Institutional Ownership
CUSIP: 60649T107
13F Institutional Holders and Ownership History from Q1 2014 to Q1 2026
Institutions Reporting
129
Shares (Excl. Options)
18,265,932
Price
$14.78
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- Security type / class
- Equity / Common Stock, $0.01 par value
- Symbol
- MG on NYSE
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 18,265,932
- Total 13F value
- $269,953,907
- Portfolio coverage rank
- 0.01%
- Share change
- +680,733
- Value change
- +$10,684,437
- Number of holders
- 129
- Shares outstanding
- 31,820,060
- SEC-reported price per share
- $17.18
- Insider filing price
- $17.18
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- MG - Mistras Group, Inc. - Common Stock, $0.01 par value is tracked under CUSIP 60649T107.
- 129 institutions reported positions in Q1 2026.
- 5 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 122 to 129 between Q4 2025 and Q1 2026.
- SEC-reported value moved from $222,419,769 to $269,953,907.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 129 institutions filings for Q1 2026.
Security key
60649T107
Latest holder period
Q1 2026
13F holders
129
13D/G owners
5
CIK / CUSIP context first
Open Q1 2026 holders
MG full holder history
Mistras Group, Inc. SEC filings
Mistras Group, Inc. company facts
Mistras Group, Inc. insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 60649T107:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
5
Security
MG
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| Foglia Stephanie Athena | 20% | -8.3% | $108,732,392 | -$9,173,570 | 6,329,010 | -7.8% | Stephanie Foglia | 27 Apr 2026 |
| Vahaviolos Aspasia Felice | 19% | -0.42% | $95,736,592 | 6,105,650 | 0% | Aspasia Vahaviolos | 31 Dec 2025 | |
| Mill Road Capital III, L.P. | 5.9% | +3.3% | $27,647,172 | +$1,585,539 | 1,870,580 | +6.1% | Mill Road Capital III, L.P. | 21 Apr 2026 |
| DIMENSIONAL FUND ADVISORS LP | 5.2% | $13,001,359 | 1,623,141 | Dimensional Fund Advisors LP | 30 Jun 2025 | |||
| Kyriakopoulos Kristy Vahaviolos | 5.1% | $25,354,654 | 1,617,006 | Kristy Kyriakopoulos | 08 Jul 2025 |
As of 31 Mar 2026, 129 institutional investors reported holding 18,265,932 shares of Mistras Group, Inc. - Common Stock, $0.01 par value (MG). This represents 57% of the company’s total 31,820,060 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
47%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| Mill Road Capital Management LLC | 5.9% | 1,870,580 | +12% | 14% | $27,647,172 |
| DIMENSIONAL FUND ADVISORS LP | 5.4% | 1,703,681 | +2.1% | 0.01% | $25,180,276 |
| ROYCE & ASSOCIATES LP | 4.8% | 1,533,052 | +7.9% | 0.22% | $22,658,509 |
| WEBER CAPITAL MANAGEMENT LLC /ADV | 4.6% | 1,456,969 | -1.7% | 22% | $21,534,002 |
| IES Holdings, Inc. | 3.5% | 1,120,545 | +3.8% | 7.7% | $16,561,655 |
| VANGUARD CAPITAL MANAGEMENT LLC | 2.9% | 930,178 | 0% | 0% | $13,748,031 |
| BlackRock, Inc. | 2.7% | 859,452 | -2.4% | 0% | $12,702,701 |
| FEDERATED HERMES, INC. | 2.1% | 656,032 | 0% | 0.02% | $9,696,153 |
| Clearline Capital LP | 1.7% | 554,089 | -21% | 0.64% | $8,189,435 |
| Invenomic Capital Management LP | 1.4% | 452,614 | -4.9% | 0.31% | $6,689,635 |
| DEUTSCHE BANK AG\ | 1.2% | 379,454 | 0% | 0% | $5,608,330 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 1.1% | 354,371 | -12% | 0.11% | $5,237,603 |
| GEODE CAPITAL MANAGEMENT, LLC | 1.1% | 353,411 | -2% | 0% | $5,225,171 |
| STATE STREET CORP | 0.98% | 312,164 | -5.6% | 0% | $4,613,784 |
| Pacific Ridge Capital Partners, LLC | 0.9% | 285,274 | +0.51% | 0.91% | $4,216,350 |
| First Eagle Investment Management, LLC | 0.88% | 281,532 | +265% | 0.01% | $4,161,043 |
| ESSEX INVESTMENT MANAGEMENT CO LLC | 0.84% | 268,567 | 0.63% | $3,969,420 | |
| CSM Advisors, LLC | 0.84% | 267,881 | -0.53% | 0.1% | $3,961,000 |
| TWO SIGMA INVESTMENTS, LP | 0.73% | 231,325 | +74% | 0% | $3,418,983 |
| Empowered Funds, LLC | 0.71% | 225,494 | +1.8% | 0.02% | $3,332,801 |
| Qube Research & Technologies Ltd | 0.69% | 218,046 | +33% | 0% | $3,222,720 |
| SEI INVESTMENTS CO | 0.64% | 204,840 | +249% | 0% | $3,027,535 |
| JB CAPITAL PARTNERS LP | 0.64% | 202,243 | 0% | 0.51% | $2,989,152 |
| ALGERT GLOBAL LLC | 0.56% | 179,290 | +31% | 0.04% | $2,650,000 |
| NORTHERN TRUST CORP | 0.5% | 159,751 | -0.8% | 0% | $2,361,119 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
49
Latest
Q1 2026
Rows shown
1-25 of 49
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q1 | 18,265,932 | $269,953,907 | +$10,684,437 | $14.78 | 129 |
| 2025 Q4 | 17,581,773 | $222,419,769 | -$9,633,918 | $12.65 | 122 |
| 2025 Q3 | 15,916,078 | $156,623,642 | +$3,229,336 | $9.84 | 109 |
| 2025 Q2 | 15,627,282 | $125,166,649 | +$5,913,927 | $8.01 | 106 |
| 2025 Q1 | 15,149,624 | $160,283,744 | +$8,100,739 | $10.58 | 109 |
| 2024 Q4 | 14,829,373 | $134,351,444 | -$1,882,993 | $9.06 | 107 |
| 2024 Q3 | 15,042,681 | $171,048,719 | +$5,226,658 | $11.37 | 106 |
| 2024 Q2 | 14,346,207 | $118,932,546 | +$891,248 | $8.29 | 90 |
| 2024 Q1 | 14,196,251 | $135,716,646 | -$1,222,822 | $9.56 | 82 |
| 2023 Q4 | 14,370,492 | $105,193,279 | -$2,251,718 | $7.32 | 79 |
| 2023 Q3 | 14,733,427 | $80,291,456 | -$1,244,020 | $5.45 | 77 |
| 2023 Q2 | 14,926,494 | $115,233,696 | +$10,917,302 | $7.72 | 79 |
| 2023 Q1 | 13,484,951 | $91,435,604 | +$1,414,990 | $6.78 | 63 |
| 2022 Q4 | 13,868,528 | $68,369,461 | -$2,904,116 | $4.93 | 61 |
| 2022 Q3 | 14,477,717 | $64,566,159 | -$2,264,415 | $4.46 | 64 |
| 2022 Q2 | 14,927,582 | $88,691,297 | -$4,723,049 | $5.94 | 74 |
| 2022 Q1 | 15,756,743 | $102,852,604 | +$4,184,141 | $6.61 | 87 |
| 2021 Q4 | 15,019,624 | $111,642,338 | +$1,415,192 | $7.43 | 84 |
| 2021 Q3 | 14,699,936 | $149,270,390 | -$1,237,007 | $10.16 | 86 |
| 2021 Q2 | 14,826,439 | $145,785,761 | +$1,380,574 | $9.83 | 82 |
| 2021 Q1 | 14,671,533 | $167,394,264 | +$4,647,438 | $11.41 | 83 |
| 2020 Q4 | 14,315,338 | $111,098,924 | +$1,375,750 | $7.76 | 84 |
| 2020 Q3 | 13,251,575 | $51,809,822 | -$3,648,874 | $3.91 | 86 |
| 2020 Q2 | 14,187,758 | $56,029,490 | -$10,700,152 | $3.95 | 88 |
| 2020 Q1 | 16,222,593 | $69,109,274 | -$2,759,844 | $4.26 | 85 |