Company facts
- Industry
- Services-Engineering Services
- Headquarters
- Princeton Junction, New Jersey
- Most recent report
- 8-K, filed Sep 18, 2026
- Incorporated
- Delaware
- Filings on record
- 1,001+ filings
- On EDGAR
- CIK 1436126
- Fiscal year ends
- December
- Filer status
- Accelerated filer
Financials 8 of 63
News 8 of 136
Prospectuses and Registrations 8 of 9
- S-8 Registration statement for an employee plan Jun 18, 2026
- S-8 Registration statement for an employee plan May 22, 2024
- S-8 Registration statement for an employee plan Aug 5, 2022
- S-8 Registration statement for an employee plan Mar 17, 2021
- S-8 Registration statement for an employee plan Mar 30, 2017
- 424B5 Prospectus supplement for an offering May 6, 2011
- 424B5 Prospectus supplement for an offering May 2, 2011
- S-3/A Shelf registration statement, amended Apr 20, 2011
Proxies 8 of 37
- DEFA14A Extra proxy material Sep 18, 2026
- DEFA14A Extra proxy material Sep 18, 2026
- DEFA14A Extra proxy material Sep 18, 2026
- DEFA14A Extra proxy material Sep 18, 2026
- DEFA14A Extra proxy material Sep 18, 2026
- DEFA14A Extra proxy material Sep 18, 2026
- DEFA14A Extra proxy material Sep 18, 2026
- DEFA14A Extra proxy material Apr 7, 2026
Ownership 8 of 705
- 4 Insider reported a trade Sep 22, 2026
- SCHEDULE 13D/A Large holder reported an active stake, amended Sep 21, 2026
- 4 Insider reported a trade Sep 18, 2026
- SCHEDULE 13D/A Large holder reported an active stake, amended Sep 18, 2026
- 4 Insider reported a trade Sep 14, 2026
- 4 Insider reported a trade Sep 14, 2026
- SCHEDULE 13D/A Large holder reported an active stake, amended Sep 14, 2026
- 4 Insider reported a trade Sep 9, 2026
Other 8 of 51
- SD Conflict minerals disclosure May 27, 2026
- ARS Annual report sent to shareholders Apr 8, 2026
- UPLOAD Comment letter from SEC staff Jun 12, 2025
- CORRESP Reply to SEC staff Jun 12, 2025
- UPLOAD Comment letter from SEC staff Jun 11, 2025
- ARS/A Annual report sent to shareholders, amended Jun 2, 2025
- CORRESP Reply to SEC staff Jun 2, 2025
- SD Conflict minerals disclosure May 30, 2025
Everything here comes from Mistras Group, Inc.'s own filings on SEC EDGAR. The filing list is rechecked every hour.