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MG Mistras Group, Inc. SEC Filings & Insider Trading Activity 2026

company
CIK 1436126123 filings
Russell 2000
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MG at a glance

Mistras Group, Inc. (MG, SEC CIK 1436126) filed its latest 10-K annual report on March 11, 2026, a 10-Q quarterly report on August 10, 2026, an 8-K current report on September 18, 2026 and Form 4 insider filings as recently as September 22, 2026. SignalX summarizes each filing with AI and tracks the company's insider trades and institutional holders.

  • For the fiscal year ended December 31, 2025 (FY2025), Mistras Group, Inc. (MG) reported revenue of $724.0 million (down 0.8% from FY2024) and net income of $16.8 million. Diluted EPS was $0.53.
  • As of June 30, 2026, 27 institutional investment managers tracked by SignalX reported holding Mistras Group, Inc. (MG) shares worth $120.1 million in 13F-HR filings.

Source: SEC EDGAR (XBRL financial data, 13F-HR and Form 4 filings).

Revenue · FY2025
$724.0M
−0.8% vs prior year
Insiders · 90 days
0 buys · 0 sells
No open-market trades
13F holders
27 funds
$120.1M · −1 vs prior quarter
Latest 8-K
Sep 18, 2026
Item 7.01 · Item 8.01 · Item 5.02 · Item 1.01

AI 8-K Current Report Analysis

The most recent material events, by 8-K item

Filed Sep 18, 2026Full analysis →

Item 7.01: Regulation FD Disclosure

  • Standard Regulation FD disclaimer limiting SEC filing liability for disclosed materials
  • Disclosure not incorporated into other Securities Act or Exchange Act filings unless expressly referenced

Item 8.01: Other Events

  • Voting agreements cover approximately 31% of outstanding shares, creating substantial support for merger approval
  • Insiders and other stockholders committed to vote against competing proposals and avoid soliciting alternatives

Item 5.02: Departure/Appointment of Directors or Principal Officers

  • Retention awards total $1.845 million for four named executives supporting the contemplated merger
  • CEO Natalia Shuman receives $750,000; CFO Edward Prajzner receives $425,000

Item 1.01: Entry into a Material Definitive Agreement

  • H.I.G. Capital-affiliated funds agreed to acquire Mistras Group for $20.35 cash per share, taking the company private
  • Shareholder approval and antitrust clearances remain required, creating transaction-completion risk

Item EX-99.1: Item EX-99.1

  • Definitive agreement for H.I.G. acquisition at $20.35 per share in cash, implying approximately $866 million enterprise value including debt
  • Offer premiums of approximately 8% to 30-day and 13% to 90-day VWAPs, with 61% appreciation since December 31, 2025
Filed Aug 10, 2026Full analysis →

Item 2.02: Results of Operations and Financial Condition

  • Q2 fiscal 2026 results covered quarter ended June 30, 2026
  • Press release issued August 10, 2026, with detailed financial results in Exhibit 99.1

Item EX-99.1: Item EX-99.1

  • Q2 revenue $193.1M, up 4.2%, extending mid-single-digit growth for four consecutive quarters
  • Adjusted EBITDA $25.8M, up 7.0%, with margin rising 30 basis points to 13.3%
Filed May 20, 2026Full analysis →

Item 5.07: Submission of Matters to a Vote of Security Holders

  • All seven director nominees reelected for one-year terms, preserving board continuity
  • PwC appointment ratified for 2026 with 29,907,768 votes in favor, supporting auditor continuity

AI summaries of MG 8-K current reports filed with the SEC. What 8-K item codes mean

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Recent Insider Transactions (Form 4)

Latest reported trades by officers, directors and 10% owners

InsiderTypeDatePrice
D'Alterio Gennaro A.FSep 20, 2026$20.75
Coggins Eileen MaryFSep 18, 2026$19.66
Vahaviolos Aspasia FeliceGSep 10, 2026-
Foglia Stephanie AthenaGSep 10, 2026-
SHUMAN-FABBRI NATALIAFSep 8, 2026$19.42
Vahaviolos Aspasia FeliceGJun 10, 2026-
Foglia Stephanie AthenaGJun 10, 2026-
Lohmeier MichelleAMay 19, 2026-
Insider trades across all companies →Which insider buys matter →

Financial Summary
XBRL

Annual financial summary from SEC XBRL data
MetricFY2023FY2024FY2025
Profitability
Revenue-$729.6M$724.0M
Gross Profit-$213.1M$204.5M
Operating Income-$39.8M$40.6M
Net Income-$19.0M$16.8M
Gross Margin-29.2%28.2%
Op. Margin-5.5%5.6%
Net Margin-2.6%2.3%
Balance Sheet
Total Assets$534.8M$523.0M$578.8M
Equity$190.2M$198.6M$235.1M
ROE-9.5%7.2%
Per Share
EPS-$0.60$0.53
Cash Flow
Operating CF-$50.1M$33.0M
CapEx-$17.9M$24.7M

Source: XBRL data in Mistras Group, Inc. (MG)'s 10-K filings on SEC EDGAR, in USD. Compare across companies →

13F Fund Holdings: Quarterly Trend

Latest: Q2 2026

Aggregate MG share value held by 13F filers tracked by SignalX, by quarter.

Quarterly totals table
MG shares held by 13F filers tracked by SignalX, by quarter
QuarterFundsTotal value
Q2 202627$120.1M
Q1 202628$93.7M
Q4 202525$85.6M
Q3 202525$61.4M
Q2 202525$49.5M
Q1 202522$52.2M
Q4 202417$37.2M
Q3 202414$31.9M
Position changes: Q1 2026 → Q2 2026
Top Buyers
Top Sellers
New Positions
None this quarter.
Closed Positions

Source: 13F-HR filings on SEC EDGAR (aggregated from 183 fund-quarter rows). Reflects only 13F filers tracked by SignalX, not the full institutional ownership universe. How 13F filings work

MG filing archive

AI analysis pages for each 10-K, 10-Q and 8-K

Latest 2026 SEC Filings: 10-K, 10-Q, 8-K & Form 4

FormFiling dateAnalysisSEC
4Sep 22, 2026--
4Sep 18, 2026--
8-KSep 18, 2026Analysis-
4Sep 14, 2026--
4Sep 14, 2026--
4Sep 9, 2026--
8-KAug 10, 2026Analysis-
10-QAug 10, 2026-
4Jun 12, 2026--
4Jun 12, 2026--
4Jun 4, 2026-
4Jun 4, 2026-
4May 21, 2026-
4May 21, 2026-
4May 21, 2026-
4May 21, 2026-
4May 21, 2026-
8-KMay 20, 2026Analysis
10-QMay 7, 2026-
8-KMay 5, 2026Analysis-
SC 13GMar 31, 2026-
SC 13DMar 31, 2026-
4Mar 26, 2026--
4Mar 23, 2026--
4Mar 17, 2026--

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MG SEC filings: frequently asked questions

Which institutions hold MG stock?

As of June 30, 2026, the largest Mistras Group, Inc. (MG) holders among the 13F filers tracked by SignalX were Dimensional Fund Advisors ($29.7 million), BlackRock ($20.4 million), IES Holdings, Inc. ($19.6 million), Vanguard Capital Management LLC ($18.4 million), State Street Corp ($6.7 million). 13F-HR reports are filed up to 45 days after each quarter ends.

What was MG's revenue in fiscal year 2025?

For the fiscal year ended December 31, 2025 (FY2025), Mistras Group, Inc. (MG) reported revenue of $724.0 million (down 0.8% from FY2024) and net income of $16.8 million. Diluted EPS was $0.53. The figures come from the XBRL data in the 10-K.

What did MG report in its latest 8-K?

Mistras Group, Inc. (MG) filed an 8-K on September 18, 2026 reporting Item 7.01 (Regulation FD Disclosure), Item 8.01 (Other Events), Item 5.02 (Departure/Appointment of Directors or Principal Officers) and Item 1.01 (Entry into a Material Definitive Agreement). Standard Regulation FD disclaimer limiting SEC filing liability for disclosed materials.

What are the latest MG SEC filings?

Mistras Group, Inc. (MG) filed its latest 10-K annual report on March 11, 2026, a 10-Q quarterly report on August 10, 2026, an 8-K current report on September 18, 2026 and a Form 4 insider filing on September 22, 2026.

What is MG's SEC CIK number?

Mistras Group, Inc. (MG)'s SEC Central Index Key (CIK) is 1436126. EDGAR lists every MG filing under that number.

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