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SEC Filing · DEFA14A

Mistras Group Inc.

MGNYSEEQUITYCurrent

SEC Filing

Filed Sep 18, 2026Accepted Sep 18, 2026, 4:26 PM EDTCIK 1436126Accession 0001140361-26-037132
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Company context

MISTRAS Group, Inc. (NYSE: MG) is a global leader in technology-enabled industrial asset integrity and laboratory testing solutions, serving critical strategic markets including oil & gas, aerospace & defense, industrials, power generation & transmission, infrastructure, engineering, and research. MISTRAS Group provides a diversified portfolio of products and services, ranging from advanced non-destructive testing and pipeline inspections to real-time condition monitoring, maintenance planning, and specialized engineering, powered by a proprietary management software suite that centralizes integrity data for predictive analytics and benchmark analysis. With a long-standing track record of innovation and deep industry expertise, MISTRAS Group helps clients reduce risk, extend asset life, and optimize operational performance. Learn more at www.mistrasgroup.com

Current securities

Recent company filings

  1. SCHEDULE 13D/A - filed by Foglia Stephanie Athena regarding Mistras Group, Inc.Sep 21, 2026
  2. SCHEDULE 13D/A filingSep 18, 2026
  3. DEFA14A filingSep 18, 2026
  4. DEFA14A filingSep 18, 2026
  5. DEFA14A filingSep 18, 2026

As-filed source

Primary evidence