| Type | Filed | Filer | Subject | Shares Owned | Percent Owned | |
|---|---|---|---|---|---|---|
| SC 13G/A | 2013-02-14 | BAMCO INC /NY/ | Mistras Group, Inc. | 2,100,000 | 7.5% | EDGAR |
| SC 13G/A | 2013-02-13 | Vahaviolos Sotirios J. | Mistras Group, Inc. | 12,923,543 | 43.5% | EDGAR |
| SC 13G/A | 2012-02-14 | BAMCO INC /NY/ | Mistras Group, Inc. | 2,350,000 | 8.5% | EDGAR |
| SC 13G/A | 2012-02-13 | Vahaviolos Sotirios J. | Mistras Group, Inc. | 12,404,592 | 42.8% | EDGAR |
| SC 13G/A | 2012-02-10 | NEWLAND CAPITAL MANAGEMENT, LLC | Mistras Group, Inc. | 0 | 0.0% | EDGAR |
| SC 13G/A | 2011-05-12 | TC EQUITY PARTNERS IV LLC | Mistras Group, Inc. | 0 | 0.0% | EDGAR |
| SC 13G/A | 2011-02-14 | BAMCO INC /NY/ | Mistras Group, Inc. | 2,600,000 | 9.8% | EDGAR |
| SC 13G/A | 2011-02-11 | NEWLAND CAPITAL MANAGEMENT, LLC | Mistras Group, Inc. | 2,559,452 | 9.6% | EDGAR |
| SC 13G/A | 2011-02-07 | Vahaviolos Sotirios J. | Mistras Group, Inc. | 11,879,263 | 43.7% | EDGAR |
| SC 13G/A | 2010-02-16 | NEWLAND CAPITAL MANAGEMENT, LLC | Mistras Group, Inc. | 1,396,768 | 5.3% | EDGAR |
| SC 13G | 2010-02-16 | Vahaviolos Sotirios J. | Mistras Group, Inc. | 11,336,763 | 42.8% | EDGAR |
| SC 13G | 2010-02-12 | TC EQUITY PARTNERS IV LLC | Mistras Group, Inc. | 2,764,401 | 10.4% | EDGAR |
| SC 13G | 2010-02-12 | BAMCO INC /NY/ | Mistras Group, Inc. | 2,000,000 | 7.6% | EDGAR |
| SC 13G/A | 2010-02-10 | BlackRock Inc. | Mistras Group, Inc. | 965,769 | 3.6% | EDGAR |
| SC 13G | 2010-01-29 | BlackRock Inc. | Mistras Group, Inc. | 1,324,654 | 5.0% | EDGAR |
| SC 13G/A | 2009-12-08 | NEWLAND CAPITAL MANAGEMENT, LLC | Mistras Group, Inc. | 1,729,210 | 6.5% | EDGAR |
| SC 13G | 2009-11-09 | NEWLAND CAPITAL MANAGEMENT, LLC | Mistras Group, Inc. | 1,434,909 | 5.4% | EDGAR |