Mistras Group, Inc. SEC filings MG
Mistras Group, Inc. has 1,000 filings in SEC EDGAR's recent list, going back to Feb 24, 2011. Its latest annual report, Form ARS, was filed on Apr 8, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Nov 2, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Oct 28, 2026 (other events). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 4/A | Filing | Oct 7, 2026 | Sep 10, 2026 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Oct 7, 2026 | — |
| 4 | Insider transaction | Sep 22, 2026 | Sep 20, 2026 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Sep 21, 2026 | — |
| 4 | Insider transaction | Sep 18, 2026 | Sep 18, 2026 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Sep 18, 2026 | — |
| 4 | Insider transaction | Sep 14, 2026 | Sep 10, 2026 |
| 4 | Insider transaction | Sep 14, 2026 | Sep 10, 2026 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Sep 14, 2026 | — |
| 4 | Insider transaction | Sep 9, 2026 | Sep 8, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 13, 2026 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Jun 12, 2026 | — |
| 4 | Insider transaction | Jun 12, 2026 | Jun 10, 2026 |
| 4 | Insider transaction | Jun 12, 2026 | Jun 10, 2026 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Jun 4, 2026 | — |
| 4 | Insider transaction | Jun 4, 2026 | Dec 31, 2025 |
| 4 | Insider transaction | Jun 4, 2026 | Jan 5, 2026 |
| 3 | Initial insider ownership | Jun 4, 2026 | Dec 31, 2025 |
| 4 | Insider transaction | May 21, 2026 | May 19, 2026 |
| 4 | Insider transaction | May 21, 2026 | May 19, 2026 |
| 4 | Insider transaction | May 21, 2026 | May 19, 2026 |
| 4 | Insider transaction | May 21, 2026 | May 19, 2026 |
| 4 | Insider transaction | May 21, 2026 | May 19, 2026 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Apr 23, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Mar 31, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Mar 31, 2026 | — |
| SCHEDULE 13D | Ownership over 5% (active) | Mar 31, 2026 | — |
| 4 | Insider transaction | Mar 26, 2026 | Mar 26, 2026 |
| 4 | Insider transaction | Mar 23, 2026 | Mar 22, 2026 |
| 4 | Insider transaction | Mar 17, 2026 | Mar 16, 2026 |
| 4 | Insider transaction | Mar 10, 2026 | Mar 4, 2026 |
| 4 | Insider transaction | Mar 10, 2026 | Mar 4, 2026 |
| 4 | Insider transaction | Mar 10, 2026 | Mar 4, 2026 |
| 4 | Insider transaction | Mar 10, 2026 | Mar 4, 2026 |
| 4/A | Primary document | Mar 9, 2026 | Mar 25, 2025 |
| 4 | Insider transaction | Mar 6, 2026 | Feb 25, 2026 |
| 4 | Insider transaction | Mar 6, 2026 | Feb 25, 2026 |
| 4 | Insider transaction | Mar 6, 2026 | Feb 25, 2026 |
| 4 | Insider transaction | Mar 4, 2026 | Mar 25, 2025 |
| 4 | Insider transaction | Mar 4, 2026 | Feb 25, 2026 |
| 4 | Insider transaction | Mar 3, 2026 | Feb 25, 2026 |
| 3 | Initial insider ownership | Feb 27, 2026 | Dec 31, 2025 |
| 4 | Insider transaction | Feb 27, 2026 | Dec 31, 2025 |
| 4/A | Primary document | Jan 9, 2026 | Jan 2, 2026 |
| 4/A | Primary document | Jan 9, 2026 | Jan 5, 2026 |
| 4 | Insider transaction | Jan 5, 2026 | Jan 5, 2026 |
| 4 | Insider transaction | Jan 5, 2026 | Jan 2, 2026 |
| 4 | Insider transaction | Dec 5, 2025 | Dec 4, 2025 |
| 4 | Insider transaction | Dec 4, 2025 | Sep 24, 2025 |
| 4/A | Primary document | Oct 1, 2025 | Sep 15, 2025 |
| 3/A | Primary document | Oct 1, 2025 | Sep 15, 2025 |
| 4 | Insider transaction | Sep 25, 2025 | Sep 15, 2025 |
| 3 | Initial insider ownership | Sep 25, 2025 | Sep 15, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Sep 11, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Sep 11, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Sep 11, 2025 | — |
| 4 | Insider transaction | Sep 10, 2025 | Jul 2, 2025 |
| 4 | Insider transaction | Sep 10, 2025 | Jul 2, 2025 |
| 3 | Initial insider ownership | Sep 10, 2025 | May 23, 2025 |
| 4 | Insider transaction | Sep 10, 2025 | Sep 8, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Jul 15, 2025 | — |
| 4 | Insider transaction | Jun 6, 2025 | Jun 5, 2025 |
| 4 | Insider transaction | May 21, 2025 | May 19, 2025 |
| 4 | Insider transaction | May 21, 2025 | May 19, 2025 |
| 4 | Insider transaction | May 21, 2025 | May 19, 2025 |
| 4 | Insider transaction | May 21, 2025 | May 19, 2025 |
| 4 | Insider transaction | May 21, 2025 | May 19, 2025 |
| 4 | Insider transaction | Mar 20, 2025 | Mar 19, 2025 |
| 4 | Insider transaction | Mar 20, 2025 | Mar 19, 2025 |
| 4 | Insider transaction | Mar 20, 2025 | Mar 18, 2025 |
| 4 | Insider transaction | Mar 20, 2025 | Mar 19, 2025 |
| 4 | Insider transaction | Mar 20, 2025 | Mar 19, 2025 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Mar 10, 2025 | — |
| 4 | Insider transaction | Mar 6, 2025 | Mar 5, 2025 |
| 4 | Insider transaction | Mar 6, 2025 | Mar 5, 2025 |
| 4 | Insider transaction | Mar 6, 2025 | Mar 5, 2025 |
| 4 | Insider transaction | Mar 6, 2025 | Mar 5, 2025 |
| 4 | Insider transaction | Mar 6, 2025 | Mar 5, 2025 |
| 3 | Initial insider ownership | Jan 10, 2025 | Jan 1, 2025 |
| 4 | Insider transaction | Jan 7, 2025 | Jan 6, 2025 |
| 4 | Insider transaction | Jan 7, 2025 | Jan 6, 2025 |
| 4 | Insider transaction | Jan 7, 2025 | Jan 6, 2025 |
| 4 | Insider transaction | Jan 7, 2025 | Jan 6, 2025 |
| 4 | Insider transaction | Sep 25, 2024 | Sep 25, 2024 |
| 4 | Insider transaction | Sep 24, 2024 | Sep 23, 2024 |
| 4 | Insider transaction | Sep 20, 2024 | Sep 20, 2024 |
| 4 | Insider transaction | Sep 20, 2024 | Sep 16, 2024 |
| 144 | Notice of proposed sale | Sep 16, 2024 | — |
| 4 | Insider transaction | Aug 19, 2024 | Aug 7, 2024 |
| 4 | Insider transaction | Aug 19, 2024 | Aug 7, 2024 |
| 4 | Insider transaction | Aug 19, 2024 | Aug 7, 2024 |
| 4 | Insider transaction | Aug 19, 2024 | Jul 3, 2024 |
| 4 | Insider transaction | Aug 19, 2024 | Aug 7, 2024 |
| 4 | Insider transaction | Aug 19, 2024 | Dec 23, 2019 |
| SC 13D | Ownership over 5% (active) | Jul 9, 2024 | — |
| 4 | Insider transaction | Jun 20, 2024 | Jun 20, 2024 |
| 144 | Notice of proposed sale | Jun 20, 2024 | — |
| 144 | Notice of proposed sale | Jun 18, 2024 | — |
| 144 | Notice of proposed sale | May 24, 2024 | — |
| 4 | Insider transaction | May 16, 2024 | May 14, 2024 |
| 4 | Insider transaction | May 3, 2024 | Mar 6, 2024 |
| 4 | Insider transaction | May 3, 2024 | Mar 6, 2024 |
| 4 | Insider transaction | Apr 5, 2024 | Apr 3, 2024 |
| 4 | Insider transaction | Apr 5, 2024 | Apr 3, 2024 |
| 4 | Insider transaction | Apr 5, 2024 | Apr 3, 2024 |
| 4 | Insider transaction | Apr 5, 2024 | Apr 3, 2024 |
| 4 | Insider transaction | Apr 3, 2024 | Mar 26, 2024 |
| 3 | Initial insider ownership | Apr 3, 2024 | Mar 26, 2024 |
| 4 | Insider transaction | Mar 27, 2024 | Nov 7, 2023 |
| 4 | Insider transaction | Mar 15, 2024 | Mar 13, 2024 |
| 4 | Insider transaction | Mar 15, 2024 | Mar 13, 2024 |
| 4 | Insider transaction | Mar 15, 2024 | Mar 13, 2024 |
| 4 | Insider transaction | Mar 15, 2024 | Mar 13, 2024 |
| 4 | Insider transaction | Mar 15, 2024 | Mar 13, 2024 |
| 144 | Notice of proposed sale | Mar 14, 2024 | — |
| 4 | Insider transaction | Mar 14, 2024 | Mar 12, 2024 |
| 144 | Notice of proposed sale | Mar 12, 2024 | — |
| 4 | Insider transaction | Mar 4, 2024 | Feb 28, 2024 |
| 4 | Insider transaction | Mar 4, 2024 | Feb 28, 2024 |
| 4 | Insider transaction | Mar 4, 2024 | Feb 28, 2024 |
| 4 | Insider transaction | Mar 4, 2024 | Feb 28, 2024 |
| 4 | Insider transaction | Mar 4, 2024 | Feb 28, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2024 | — |
| SC 13D/A | Amended ownership over 5% (active) | Feb 14, 2024 | — |
| SC 13D | Ownership over 5% (active) | Feb 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2024 | — |
| 4 | Insider transaction | Feb 9, 2024 | Dec 8, 2023 |
| 5 | Annual insider ownership | Feb 6, 2024 | Dec 31, 2023 |
| 4 | Insider transaction | Jan 4, 2024 | Jan 2, 2024 |
| 4 | Insider transaction | Jan 4, 2024 | Jan 2, 2024 |
| 4 | Insider transaction | Jan 4, 2024 | Jan 2, 2024 |
| 4 | Insider transaction | Dec 20, 2023 | Dec 20, 2023 |
| 4 | Insider transaction | Dec 13, 2023 | Dec 11, 2023 |
| 4 | Insider transaction | Nov 15, 2023 | Nov 14, 2023 |
| 144 | Notice of proposed sale | Nov 15, 2023 | — |
| 4 | Insider transaction | Nov 9, 2023 | Nov 8, 2023 |
| 4 | Insider transaction | Oct 13, 2023 | Oct 11, 2023 |
| 3 | Initial insider ownership | Oct 4, 2023 | Oct 1, 2023 |
| 4 | Insider transaction | Sep 22, 2023 | Sep 20, 2023 |
| 3 | Initial insider ownership | Sep 19, 2023 | Sep 11, 2023 |
| 4 | Insider transaction | Aug 11, 2023 | Aug 11, 2023 |
| 4 | Insider transaction | Aug 11, 2023 | Aug 9, 2023 |
| 4 | Insider transaction | Aug 11, 2023 | Aug 9, 2023 |
| 4 | Insider transaction | Aug 11, 2023 | Aug 9, 2023 |
| 4 | Insider transaction | Aug 11, 2023 | Aug 9, 2023 |
| 4 | Insider transaction | Mar 30, 2023 | Mar 30, 2023 |
| 4 | Insider transaction | Mar 30, 2023 | Mar 30, 2023 |
| 4 | Insider transaction | Mar 30, 2023 | Mar 30, 2023 |
| 4 | Insider transaction | Mar 30, 2023 | Mar 30, 2023 |
| 4 | Insider transaction | Mar 20, 2023 | Mar 17, 2023 |
| 4 | Insider transaction | Mar 20, 2023 | Mar 17, 2023 |
| 4 | Insider transaction | Mar 20, 2023 | Mar 17, 2023 |
| 4 | Insider transaction | Mar 20, 2023 | Mar 16, 2023 |
| 4 | Insider transaction | Mar 17, 2023 | Mar 15, 2023 |
| 4 | Insider transaction | Mar 17, 2023 | Mar 15, 2023 |
| 4 | Insider transaction | Mar 17, 2023 | Mar 15, 2023 |
| 4 | Insider transaction | Mar 17, 2023 | Mar 15, 2023 |
| 4 | Insider transaction | Mar 17, 2023 | Mar 15, 2023 |
| SC 13G | Ownership over 5% (passive) | Feb 7, 2023 | — |
| SC 13D | Ownership over 5% (active) | Jan 26, 2023 | — |
| 3 | Initial insider ownership | Jan 20, 2023 | Jan 9, 2023 |
| 4 | Insider transaction | Jan 18, 2023 | Jan 9, 2023 |
| 4 | Insider transaction | Jan 3, 2023 | Jan 3, 2023 |
| 4 | Insider transaction | Jan 3, 2023 | Jan 3, 2023 |
| 4 | Insider transaction | Jan 3, 2023 | Jan 3, 2023 |
| 4 | Insider transaction | Jan 3, 2023 | Jan 3, 2023 |
| 4 | Insider transaction | Jan 3, 2023 | Jan 3, 2023 |
| 4 | Insider transaction | Aug 19, 2022 | Aug 18, 2022 |
| 4 | Insider transaction | Aug 19, 2022 | Aug 18, 2022 |
| 4 | Insider transaction | Aug 19, 2022 | Aug 18, 2022 |
| 4 | Insider transaction | Aug 19, 2022 | Aug 18, 2022 |
| 4 | Insider transaction | Aug 19, 2022 | Aug 18, 2022 |
| 4 | Insider transaction | Mar 25, 2022 | Mar 25, 2022 |
| 4 | Insider transaction | Mar 25, 2022 | Mar 25, 2022 |
| 4 | Insider transaction | Mar 25, 2022 | Mar 25, 2022 |
| 4 | Insider transaction | Mar 25, 2022 | Mar 25, 2022 |
| 4 | Insider transaction | Mar 25, 2022 | Mar 25, 2022 |
| 4 | Insider transaction | Mar 25, 2022 | Mar 25, 2022 |
| 4 | Insider transaction | Mar 24, 2022 | Mar 23, 2022 |
| 4 | Insider transaction | Mar 24, 2022 | Mar 23, 2022 |
| 4 | Insider transaction | Mar 24, 2022 | Mar 23, 2022 |
| 4 | Insider transaction | Mar 24, 2022 | Mar 23, 2022 |
| 4 | Insider transaction | Mar 24, 2022 | Mar 23, 2022 |
| 4 | Insider transaction | Mar 22, 2022 | Mar 22, 2022 |
| 4 | Insider transaction | Mar 22, 2022 | Mar 22, 2022 |
| 4 | Insider transaction | Mar 22, 2022 | Mar 22, 2022 |
| 4 | Insider transaction | Mar 22, 2022 | Mar 22, 2022 |
| 4 | Insider transaction | Mar 22, 2022 | Mar 22, 2022 |
| 4 | Insider transaction | Mar 18, 2022 | Mar 16, 2022 |
| 4 | Insider transaction | Mar 18, 2022 | Mar 16, 2022 |
| 4 | Insider transaction | Mar 18, 2022 | Mar 16, 2022 |
| 4 | Insider transaction | Mar 18, 2022 | Mar 16, 2022 |
| 4 | Insider transaction | Mar 18, 2022 | Mar 16, 2022 |
| 4 | Insider transaction | Mar 16, 2022 | Mar 14, 2022 |
| 4 | Insider transaction | Mar 16, 2022 | Mar 14, 2022 |
| 4 | Insider transaction | Mar 16, 2022 | Mar 14, 2022 |
| 4 | Insider transaction | Mar 16, 2022 | Mar 14, 2022 |
| 4 | Insider transaction | Mar 16, 2022 | Mar 14, 2022 |
| SC 13G | Ownership over 5% (passive) | Feb 9, 2022 | — |
| 4/A | Primary document | Jan 10, 2022 | Jun 1, 2020 |
Showing 200 filings, the most recent 200. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Services-Engineering Services (SIC 8711)
- Listed as
- MG (NYSE)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Princeton Junction, NJ
- SEC filer status
- Accelerated filer
- SEC CIK
- 1436126
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.