3 institutions reported holding $316,609 of Mistras Group Inc (MG) in SEC 13F filings for 2026-06-30. Largest institutional holders: Assenagon Asset Management S.A. ($313,953), GAMMA Investing LLC ($2,114), MassMutual Private Wealth & Trust, FSB ($542). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | Assenagon Asset Management S.A. | $313,953 | 17,971 | Hold |
| 2 | GAMMA Investing LLC | $2,114 | 121 | Hold |
| 3 | MassMutual Private Wealth & Trust, FSB | $542 | 31 | Added |
Source: SEC Form 13F filings · as of 2026-06-30