Mistras Group, Inc.

MG·NYSE·$18.21Share Price as of 11/2·$579MMarket Cap as of 11/2

Financials

10-QQ2 ended 06/30/2608/10/26 10-QQ1 ended 03/31/2605/07/26 10-KFY 202503/11/26 10-QQ3 ended 09/30/2511/06/25 10-QQ2 ended 06/30/2508/11/25

Disclosures

8-KCurrent report10/28/26 8-KCurrent report09/18/26 8-KCurrent report08/10/26 8-KCurrent report05/20/26 8-KCurrent report05/05/26

Prospectuses and Registrations

S-8Registration of securities for employees06/18/26 S-8Registration of securities for employees05/22/24 S-8Registration of securities for employees08/05/22 S-8Registration of securities for employees03/17/21 S-8Registration of securities for employees03/30/17

Proxies

DEFA14AAdditional proxy materials10/28/26 DEFM14ADefinitive proxy (merger)10/27/26 PREM14APreliminary proxy (merger)10/15/26 DEFA14AAdditional proxy materials09/18/26 DEFA14AAdditional proxy materials09/18/26

Ownership

4/AInsider transaction (amended)10/07/26 SC 13D/ABeneficial ownership (amended)10/07/26 Form 4Insider transaction09/22/26 SC 13D/ABeneficial ownership (amended)09/21/26 Form 4Insider transaction09/18/26

Other

SDConflict Minerals disclosure05/27/26 ARSAnnual report to shareholders04/08/26 CORRESPCorrespondence with the SEC06/12/25 UPLOADLetter from the SEC06/12/25 UPLOADLetter from the SEC06/11/25