Mistras Group, Inc. (MG) Insider Trading & SEC Filings

Updated Jul 16, 2026 · Last SEC filing 2026-06-12

Mistras Group, Inc. (MG) has filed 9 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-06-12. 2 Form 8-K material event filings were reported by MG in the last 90 days. InsiderAlpha tracks every MG SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.

About Mistras Group, Inc. (MG)

SIC classificationServices-Engineering Services (SIC 8711)
SEC CIK0001436126

90-Day SEC Filing Activity

Form 4 filings (90d)9
Form 8-K filings (90d)2
Latest Form 4 filing2026-06-12

Recent MG Insider Transactions (Form 4)

DateInsiderRoleTransactionSharesPriceValueFiling
Vahaviolos Aspasia FeliceInsiderG — Bona-fide gift411.9K$0.00—SEC
Foglia Stephanie AthenaInsiderG — Bona-fide gift411.9K$0.00—SEC
GLANTON RICHARD HDirectorA — Grant or award6.9K$0.00—SEC
FORESE JAMES JDirectorA — Grant or award6.9K$0.00—SEC
PIZZI CHARLES PDirectorA — Grant or award6.9K$0.00—SEC
Lohmeier MichelleDirectorA — Grant or award6.9K$0.00—SEC
DEBENEDICTIS NICHOLASDirectorA — Grant or award6.9K$0.00—SEC
Foglia Stephanie AthenaInsiderG — Bona-fide gift528.7K$0.00—SEC
Foglia Stephanie AthenaInsiderS — Open-market sale1.0K$18.00$18KSEC
Hammad Hanei WailEVP & Chief Operating OfficerF — Tax withholding / forfeiture2.9K$15.10$43KSEC
Prajzner Edward JSr. EVP and CFOF — Tax withholding / forfeiture1.4K$14.05$19KSEC
Prajzner Edward JSr. EVP and CFOF — Tax withholding / forfeiture2.2K$14.61$33KSEC
Prajzner Edward JSr. EVP and CFOF — Tax withholding / forfeiture2.5K$14.82$38KSEC
Prajzner Edward JSr. EVP and CFOF — Tax withholding / forfeiture698$15.68$11KSEC
Stamatakis Manuel N.Executive ChairmanF — Tax withholding / forfeiture814$15.68$13KSEC

All transactions sourced from SEC EDGAR Form 4 filings for Mistras Group, Inc. (MG). Updated in real time as new filings are submitted to the SEC.

Most-Active MG Insiders — Last 90 Days

InsiderForm 4 filingsTotal transaction value
Foglia Stephanie Athena6$62K
Vahaviolos Aspasia Felice2—
Lohmeier Michelle1—
PIZZI CHARLES P1—
DEBENEDICTIS NICHOLAS1—

Recent MG Form 8-K Material Events

Recent Insider Filings

Form 4 Transaction Code Reference

SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in MG insider filings:

POpen-market purchase by the insider
SOpen-market sale by the insider
AGrant, award, or other acquisition from the issuer
MExercise or conversion of derivative security (e.g. options)
FPayment of exercise price or tax liability via share withholding
GBona-fide gift of securities
DDisposition to the issuer (e.g. share buyback participation)
JOther acquisition or disposition
XExercise of in-the-money or at-the-money derivative security
CConversion of derivative security
VTransaction voluntarily reported earlier than required

MG Insider Trading — FAQ

What is the latest insider trade for MG?
Mistras Group, Inc. (MG) had 9 insider filings in the last 90 days, with the most recent on 2026-06-12. InsiderAlpha tracks every Form 4, 10-K, 10-Q, and 8-K filing in real time.
How many insiders are buying MG stock?
0 insider purchases of MG were filed in the last 90 days.
How many insiders are selling MG stock?
0 insider sales of MG were filed in the last 90 days.
Where can I see MG SEC filings (Form 4, 10-K, 10-Q, 8-K)?
InsiderAlpha aggregates every MG SEC filing — Form 4 insider transactions, 10-K and 10-Q quarterly reports, and 8-K material event disclosures — in one timeline.

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