MISTRAS GROUP INC (MG) Institutional Ownership Changes & 13F Activity
MISTRAS GROUP INC (MG) institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC 13F filings (Q1 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions among tracked filers. Notable filers include First Eagle U.S. Value, Renaissance Technologies LLC, Olstein Capital Management, and Vulcan Value Partners.
| Portfolio quarter | Name | Type | Quantity | Remaining | Reported stock balance |
|---|---|---|---|---|---|
| Q1 2026 | First Eagle U.S. Value | Buy | 204,313 | 281,532 | $4,161,043 |
| Q1 2026 | Renaissance Technologies LLC | Sell | -81,100 | 120,500 | $1,780,990 |
| Q4 2025 | First Eagle U.S. Value | Buy | 56,552 | 77,219 | $976,820 |
| Q4 2025 | Renaissance Technologies LLC | Buy | 20,800 | 201,600 | $2,550,240 |
| Q3 2025 | Renaissance Technologies LLC | Sell | -80,200 | 180,800 | $1,779,072 |
| Q2 2025 | Renaissance Technologies LLC | Sell | -1,000 | 261,000 | $2,090,610 |
| Q1 2025 | Renaissance Technologies LLC | Buy | 107,500 | 262,000 | $2,771,960 |
| Q4 2024 | Renaissance Technologies LLC | Sell | -21,700 | 154,500 | $1,399,770 |
| Q3 2024 | Renaissance Technologies LLC | Buy | 71,300 | 176,200 | $2,003,394 |
| Q2 2024 | Renaissance Technologies LLC | Buy | 11,100 | 104,900 | $869,621 |
| Q1 2024 | Renaissance Technologies LLC | Buy | 9,500 | 93,800 | $897 |
| Q4 2023 | Renaissance Technologies LLC | Sell | -1,400 | 84,300 | $617 |
| Q3 2023 | Renaissance Technologies LLC | Buy | 8,000 | 85,700 | $467 |
| Q2 2023 | Renaissance Technologies LLC | Buy | 31,500 | 77,700 | $600 |
| Q1 2023 | Renaissance Technologies LLC | Buy | 7,400 | 46,200 | $313 |
| Q4 2022 | Renaissance Technologies LLC | Sell | -900 | 38,800 | $191 |
| Q3 2022 | Renaissance Technologies LLC | Buy | 4,100 | 39,700 | $177 |
| Q2 2022 | Renaissance Technologies LLC | Sell | -30,700 | 35,600 | $211 |
| Q1 2022 | Renaissance Technologies LLC | Buy | 30,302 | 66,300 | $438 |
| Q4 2021 | Renaissance Technologies LLC | Buy | 22,298 | 35,998 | $267 |
| Q3 2021 | First Eagle U.S. Value | Buy | 17,649 | 20,667 | $210 |
| Q3 2021 | Renaissance Technologies LLC | Sell | -3,400 | 13,700 | $139 |
| Q2 2021 | Renaissance Technologies LLC | Sell | -39,100 | 17,100 | $168 |
| Q2 2021 | First Eagle U.S. Value | Buy | 3,018 | 3,018 | $30 |
| Q1 2021 | Renaissance Technologies LLC | Buy | 19,800 | 56,200 | $641 |
| Q4 2020 | Renaissance Technologies LLC | Sell | -43,038 | 36,400 | $282 |
| Q3 2020 | Renaissance Technologies LLC | Sell | -252,502 | 79,438 | $311 |
| Q2 2020 | Renaissance Technologies LLC | Sell | -270,900 | 331,940 | $1,311 |
| Q1 2020 | Renaissance Technologies LLC | Buy | 155,300 | 602,840 | $2,568 |
| Q4 2019 | Renaissance Technologies LLC | Sell | -102,100 | 447,540 | $6,386 |
Frequently asked questions about MG activity
Which institutional owners are buying MG?
Institutional owners buying MG include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in MG activity?
"Buy" means an investor increased their reported position in MG compared to the prior reporting period. This reflects growing exposure to MISTRAS GROUP INC (MG) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in MG increasing?
Institutional interest in MG can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.
Related MG insights
- MG Overview
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- MG Institutional Buying
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- MG Ownership Changes
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