What SEC filings does Mistras Group, Inc. submit to the SEC?

Mistras Group, Inc. (MG) submits several types of SEC filings including Form 4 (insider transactions), Form 144 (proposed insider sales), 8-K reports (material events such as earnings releases, acquisitions, leadership changes), and periodic reports — the 10-Q (quarterly) and 10-K (annual). All filings are publicly available through SEC EDGAR.

What does a Form 4 filing tell me about MG?

A Form 4 for MG discloses a transaction by a company insider — typically a director, officer, or 10%+ shareholder. It shows the source-reported date, number of shares, price, and updated ownership. These facts do not establish motive or predict future returns.

How do I interpret an 8-K filing from Mistras Group, Inc.?

An 8-K signals a material event requiring prompt disclosure. Common triggers include earnings pre-announcements, acquisitions, leadership appointments or departures, credit changes, or regulatory actions. Read the item codes inside the filing to understand exactly what was disclosed before drawing conclusions.

What is the difference between a 10-K and 10-Q for MG?

The 10-K is Mistras Group, Inc.'s annual report with fully audited financial statements, comprehensive MD&A, and complete risk factor disclosures — filed 60–90 days after fiscal year-end. The 10-Q is a lighter quarterly report with unaudited financials filed for the first three quarters. Together they provide a continuous financial picture of the company.

Where can I see all MG SEC filings directly on EDGAR?

You can view all historical Mistras Group, Inc. filings on the SEC EDGAR company page for MG. Each filing card on this page links directly to the original SEC document.

How often does Mistras Group, Inc. file with the SEC?

Mistras Group, Inc. files one 10-K per year and up to three 10-Qs per year. Form 4 insider transactions must be reported within two business days of each trade, so the frequency depends on how often insiders are buying or selling MG shares. 8-K filings occur whenever a material event happens — which can be several times per quarter for an active company.

MG SEC Filing News — Mistras Group, Inc.

Latest SEC filings for Mistras Group, Inc. (MG) explained in plain English. Covers insider buying and selling (Form 4), proposed insider sales (Form 144), material company events (8-K), and quarterly & annual reports (10-Q / 10-K). StrongBuyAnalytics provides navigation and brief excerpts or summaries; original filings remain at the SEC/source links and were authored by their filers, not StrongBuyAnalytics. Filing dates shown are source dates. Coverage and detection can be delayed or incomplete because of SEC availability, amendments, parsing, caching, or outages. Latest source filing date shown: 2026-09-22.

Mistras Group, Inc. provides technology-enabled industrial asset integrity and laboratory testing solutions in the United States, Europe, the Middle East, Africa, Asia, and South America. The company offers non-destructive testing (NDT) services; pipeline inspections; Plant Condition Management Software; maintenance planning; and specialized engineering solutions. It also provides maintenance and light mechanical services, such as corrosion removal, mitigation and prevention, insulation installa…

Sector: Industrials Industry: Security & Protection Services Market Cap: $683.1M

Total Filings

Bullish Classifications

Bearish Classifications

Insider Transactions

Material Events (8-K)

Periodic Reports

Rule-based classifications for MG currently lean bearish. Of the 20 filing records displayed, 1 carry bearish classifications (such as insider sales or negative 8-K disclosures) versus 0 bullish. This does not necessarily signal fundamental deterioration — insiders sell for many reasons — but it is worth monitoring alongside the company's core financial metrics.

MG Filing Activity Snapshot 2026-05-05 — 2026-09-22

Insider Transactions (Form 4)

0 buys vs 1 sell

Net insider selling in this period — insiders sell for many reasons beyond conviction.

Largest Form 144 Filing

$61.7K

Foglia Stephanie Athena (10% Owner) · 2026-06-04

4,000 shares · Form 4

8-K Item Codes Filed

Item 5.07: Submission of Matters to Vote of Security Holders

Item codes identify the type of material event disclosed (e.g. 2.02 = earnings results, 5.02 = executive change, 1.01 = material agreement).

Insider Transactions 14 · Forms 3, 4 and 5

A Form 4 is filed within two business days of a company insider — an officer, a director, or a holder of more than ten percent of the stock — changing their position in the shares. All 14 filings in this group are Form 4s for Mistras Group, Inc.

The difficulty with reading these filings as a group is that a single form type covers transactions that mean entirely different things. An executive spending their own money to buy stock and an executive having shares withheld to pay tax on a vesting grant both appear as a Form 4. Every filing below is therefore tagged with the nature of the underlying transaction, taken from the transaction code reported on the form itself.

Across the 14 insider filings shown, the breakdown is 5 compensation award, 5 gift, 3 tax withholding and 1 open-market sale. 1 of them involved a discretionary open-market trade; the rest are compensation and administrative mechanics.

What each transaction type means

Compensation award ×5: Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.
Gift ×5: Shares were transferred as a gift, typically for estate or charitable planning. No sale into the market took place.
Tax withholding ×3: Shares were withheld by the company to settle tax due when equity vested. This is an automatic administrative step and not a decision to sell.
Open-market sale ×1: The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Form 4 Tax withholding Tax / Compensation Filing 2026-09-22

MG insider Form 4 filed for equity award, exercise, or tax withholding

D'Alterio Gennaro A. (EVP, Chief Commercial Officer) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were withheld by the company to settle tax due when equity vested. This is an automatic administrative step and not a decision to sell.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`F`	Tax withholding on vested shares	662	$20.75	$13.7K

Filing: Form 4 (Insider Transaction) Insider: D'Alterio Gennaro A. (EVP, Chief Commercial Officer) Shares: 662

View on SEC EDGAR → Open Filing Document →

Form 4 Tax withholding Tax / Compensation Filing 2026-09-18

MG insider Form 4 filed for equity award, exercise, or tax withholding

Coggins Eileen Mary (Chief Legal Officer) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were withheld by the company to settle tax due when equity vested. This is an automatic administrative step and not a decision to sell.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`F`	Tax withholding on vested shares	1,636	$19.66	$32.2K

Filing: Form 4 (Insider Transaction) Insider: Coggins Eileen Mary (Chief Legal Officer) Shares: 1,636

View on SEC EDGAR → Open Filing Document →

Form 4 Gift Tax / Compensation Filing 2026-09-14

MG insider Form 4 filed for equity award, exercise, or tax withholding

Vahaviolos Aspasia Felice (10% Owner) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were transferred as a gift, typically for estate or charitable planning. No sale into the market took place.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`G`	Gift	387,093	—	—

Filing: Form 4 (Insider Transaction) Insider: Vahaviolos Aspasia Felice (10% Owner) Shares: 387,093

View on SEC EDGAR → Open Filing Document →

Form 4 Gift Tax / Compensation Filing 2026-09-14

MG insider Form 4 filed for equity award, exercise, or tax withholding

Foglia Stephanie Athena (10% Owner) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were transferred as a gift, typically for estate or charitable planning. No sale into the market took place.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`G`	Gift	387,093	—	—

Filing: Form 4 (Insider Transaction) Insider: Foglia Stephanie Athena (10% Owner) Shares: 387,093

View on SEC EDGAR → Open Filing Document →

Form 4 Tax withholding Tax / Compensation Filing 2026-09-09

MG insider Form 4 filed for equity award, exercise, or tax withholding

SHUMAN-FABBRI NATALIA (Director, President and CEO) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were withheld by the company to settle tax due when equity vested. This is an automatic administrative step and not a decision to sell.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`F`	Tax withholding on vested shares	2,410	$19.42	$46.8K

Filing: Form 4 (Insider Transaction) Insider: SHUMAN-FABBRI NATALIA (Director, President and CEO) Shares: 2,410

View on SEC EDGAR → Open Filing Document →

Form 4 Gift Tax / Compensation Filing 2026-06-12

MG insider Form 4 filed for equity award, exercise, or tax withholding

Foglia Stephanie Athena (10% Owner) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were transferred as a gift, typically for estate or charitable planning. No sale into the market took place.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`G`	Gift	411,875	—	—

Filing: Form 4 (Insider Transaction) Insider: Foglia Stephanie Athena (10% Owner) Shares: 411,875

View on SEC EDGAR → Open Filing Document →

Form 4 Gift Tax / Compensation Filing 2026-06-12

MG insider Form 4 filed for equity award, exercise, or tax withholding

Vahaviolos Aspasia Felice (10% Owner) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were transferred as a gift, typically for estate or charitable planning. No sale into the market took place.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`G`	Gift	411,875	—	—

Filing: Form 4 (Insider Transaction) Insider: Vahaviolos Aspasia Felice (10% Owner) Shares: 411,875

View on SEC EDGAR → Open Filing Document →

Form 4 Gift Tax / Compensation Filing 2026-06-04

MG insider Form 4 filed for equity award, exercise, or tax withholding

Vahaviolos Aspasia Felice (10% Owner) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were transferred as a gift, typically for estate or charitable planning. No sale into the market took place.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`G`	Gift	528,672	—	—

Filing: Form 4 (Insider Transaction) Insider: Vahaviolos Aspasia Felice (10% Owner) Shares: 528,672

View on SEC EDGAR → Open Filing Document →

Form 4 Open-market sale Insider Selling 2026-06-04

MG insider Foglia Stephanie Athena (10% Owner) sold 4,000 shares (~$61.7K)

Foglia Stephanie Athena, listed as 10% Owner at Mistras Group, Inc., reported an open-market sale of 4,000 MG shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`S`	Open-market sale	1,000	$13.60	$13.6K
`S`	Open-market sale	1,000	$14.60	$14.6K
`S`	Open-market sale	1,000	$15.50	$15.5K
`S`	Open-market sale	1,000	$18.00	$18.0K
`G`	Gift	528,672	—	—

Filing: Form 4 (Insider Transaction) Insider: Foglia Stephanie Athena (10% Owner) Shares: 4,000 Est. Value: $61.7K

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-05-21

MG insider Form 4 filed for equity award, exercise, or tax withholding

DEBENEDICTIS NICHOLAS (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award	6,862	—	—

Filing: Form 4 (Insider Transaction) Insider: DEBENEDICTIS NICHOLAS (Director) Shares: 6,862

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-05-21

MG insider Form 4 filed for equity award, exercise, or tax withholding

GLANTON RICHARD H (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award	6,862	—	—

Filing: Form 4 (Insider Transaction) Insider: GLANTON RICHARD H (Director) Shares: 6,862

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-05-21

MG insider Form 4 filed for equity award, exercise, or tax withholding

FORESE JAMES J (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award	6,862	—	—

Filing: Form 4 (Insider Transaction) Insider: FORESE JAMES J (Director) Shares: 6,862

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-05-21

MG insider Form 4 filed for equity award, exercise, or tax withholding

Lohmeier Michelle (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award	6,862	—	—

Filing: Form 4 (Insider Transaction) Insider: Lohmeier Michelle (Director) Shares: 6,862

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-05-21

MG insider Form 4 filed for equity award, exercise, or tax withholding

PIZZI CHARLES P (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award	6,862	—	—

Filing: Form 4 (Insider Transaction) Insider: PIZZI CHARLES P (Director) Shares: 6,862

View on SEC EDGAR → Open Filing Document →

Material Events 4 · Form 8-K

An 8-K reports a material event in the window between scheduled reports. There are 4 in this period for Mistras Group, Inc. Each 8-K names the item number it is filed under, and that number is the fastest way to tell a routine disclosure from a consequential one.

Item 2.02 is an earnings release, Item 5.02 is a change of directors or officers, and Item 1.01 or 2.01 covers a material agreement or a completed acquisition. Item 7.01 and Item 8.01 are the general-purpose disclosure items and carry no fixed meaning on their own.

The items reported in this period are: Item 5.07: Submission of Matters to Vote of Security Holders.

Form 8-K Material Company Update 2026-09-18

MG filed 8-K — material company event

Mistras Group, Inc. filed an 8-K with the SEC reporting a material event. Summary unavailable — view the original SEC filing for the full text.

Filing: 8-K (Material Event)

View on SEC EDGAR → Open Filing Document →

Form 8-K Material Company Update 2026-08-10

MG filed 8-K — material company event

Mistras Group, Inc. filed an 8-K with the SEC reporting a material event. Summary unavailable — view the original SEC filing for the full text.

Filing: 8-K (Material Event)

View on SEC EDGAR → Open Filing Document →

Form 8-K Material Company Update 2026-05-20

MG filed 8-K — Submission of Matters to Vote of Security Holders

Mistras Group, Inc. filed an 8-K with the SEC. Item 5.07: Submission of Matters to Vote of Security Holders. Filing excerpt: 8-K 1 formfor2026annualsharehold.htm 8-K Document UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 19, 2026 Mistras Group, Inc. (Exact name of registrant as specified in its charter) Delaware 001-34481 22-3341267 (State or other jurisdiction (Commission (IRS Employer of incorporation) File Number) Identification No.) 195 Clarksville Road…

Filing: 8-K (Material Event) Item 5.07: Submission of Matters to Vote of Security Holders

View on SEC EDGAR → Open Filing Document →

Form 8-K Material Company Update 2026-05-05

MG filed 8-K — material company event

Mistras Group, Inc. filed an 8-K with the SEC reporting a material event. Summary unavailable — view the original SEC filing for the full text.

Filing: 8-K (Material Event)

View on SEC EDGAR → Open Filing Document →

Periodic Reports 2 · Forms 10-K and 10-Q

The periodic reports are where the audited and reviewed financial statements live. This period contains 2 quarterly reports (10-Q) for Mistras Group, Inc.

The two are not equivalent in weight. A 10-K is audited by an external firm and includes the full risk factor disclosure, business description and management discussion; a 10-Q is unaudited, reviewed rather than examined, and much shorter. When a figure in a quarterly report is later revised, the annual report is usually where the correction appears.

An amended report — 10-K/A or 10-Q/A — restates or corrects something in the original filing, and is worth reading against the version it replaces.

Form 10-Q Quarterly Report 2026-08-10

MG filed Quarterly Report (10-Q)

Mistras Group, Inc. filed its quarterly report with the SEC. This report includes unaudited financial statements and management discussion for the quarter.

Filing: 10-Q (Quarterly Report)

View on SEC EDGAR → Open Filing Document →

Form 10-Q Quarterly Report 2026-05-07

MG filed Quarterly Report (10-Q)

Mistras Group, Inc. filed its quarterly report with the SEC. This report includes unaudited financial statements and management discussion for the quarter.

Filing: 10-Q (Quarterly Report)

View on SEC EDGAR → Open Filing Document →

How we classify Mistras Group, Inc.'s filings

Straight from EDGAR

Each displayed record links to an original source document. StrongBuyAnalytics provides navigation and brief excerpts or summaries, not the filing itself. Parsing may omit context or contain errors, so read the original document in full.

Transaction codes, not guesswork

The nature shown on each insider filing comes from the transaction code the filer entered on the form itself — P for an open-market purchase, A for a compensation award, F for shares withheld to pay tax, M for an option exercise. Where one filing contains several codes, the transaction table lists them line by line.

Why the distinction matters

Insider activity is routinely summarised as buying or selling, which flattens together decisions that mean very different things. Shares withheld for tax on a vesting grant are an automatic administrative step; shares bought on the open market are someone committing their own money at the current price.

What this page does not tell you

A filing records what happened, not why. Form 4 does not always disclose whether a sale was executed under a pre-arranged Rule 10b5-1 plan, and no single filing is a basis for a decision on MG. Read these alongside the fundamentals rather than in isolation.

Frequently Asked Questions — MG SEC Filings

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Publisher, sources & limitations — September 15, 2026. StrongBuyAnalytics provides navigation and brief excerpts or summaries for educational use. Original filings remain at SEC EDGAR or other displayed source links; StrongBuyAnalytics does not author them. Filing dates are source dates, not publication dates for this page. Coverage can be delayed, incomplete, amended, or unavailable because of SEC/source availability, parsing, caching, or outages. Verify every material statement in the original filing.

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