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See how Context works →On the price, the facts of the public record■Insider buy□Insider sell◇Significant stake declared (13D)●Results filed
With an account, also○dividends▲splits◌next earningswith an account
End-of-day prices provided by Twelve Data · One close per session; the series does not update during the trading day.
Latest on record
The most recent facts, as filed.
Up to three of the most recent, checkable facts already loaded on this page, each linked to its source.
- Sep 18, 2026Material event · 8-KFiled by the company itself.Open the filing ↗
- Aug 10, 2026Quarterly report · 10-QFiled by the company itself.Open the filing ↗
- Aug 10, 2026Material event · 8-KFiled by the company itself.Open the filing ↗
In numbers
What this profile holds, counted.
Closes · 1 year250
SEC filings on record1,05118 flagged findings
Reported transactions (Form 4)49since Mar 17, 2023 · and 14 other holdings
Corporate events (8-K)30since Mar 15, 2018
What the record says
Description, identity and filings, each with its source.
Every block cites its source. The colour of a finding marks its category — which document, who filed it — not how much it matters.
Regulatory history
Topics detected in its SEC reports, with the original excerpt.
Each topic is assigned by a classifier over the full filing; the excerpts show where it was detected and are not always enough to verify it. Open the filing to read it in full.
- 2026-08-10capital return (buybacks/dividends)freshOpen filing ↗“…Charge Coverage Ratio of 1.25 to 1.0 for the duration of the Credit Agreement, as defined in the Credit Agreement. • The Credit…”
- 2026-05-07capital return (buybacks/dividends)recentOpen filing ↗“…Charge Coverage Ratio of 1.25 to 1.0 for the duration of the Credit Agreement, as defined in the Credit Agreement. • The Credit…”
Original excerpts from SEC filings, untranslated. Not advice and not a prediction.
The 25 most recent filings (of 1,051)
Every SEC filing, newest first, with what it is. Below, each type with its own explanation.
- Oct 15, 26PREM14A ↗Shareholder meeting and votes new
- Oct 7, 26Form 4/A ↗Insider transaction · amendment
- Oct 7, 26SCHEDULE 13D/A ↗Stake with intent to influence · Aspasia Felice Vahaviolos · 19.1% · event on Sep 17, 26 · amendment
- Sep 22, 26Form 4 ↗Insider transaction
- Sep 21, 26SCHEDULE 13D/A ↗Stake with intent to influence · Aspasia Felice Vahaviolos · 19.1% · event on Sep 17, 26 · amendment
- Sep 18, 26Form 4 ↗Insider transaction
- Sep 18, 26SCHEDULE 13D/A ↗Stake with intent to influence · Mill Road Capital III, L.P. · 6.1% · event on Sep 16, 26 · amendment
- Sep 18, 26DEFA14A ↗Shareholder meeting and votes
- Sep 18, 26DEFA14A ↗Shareholder meeting and votes
- Sep 18, 26DEFA14A ↗Shareholder meeting and votes
- Sep 18, 26DEFA14A ↗Shareholder meeting and votes
- Sep 18, 26DEFA14A ↗Shareholder meeting and votes
- Sep 18, 26DEFA14A ↗Shareholder meeting and votes
- Sep 18, 26DEFA14A ↗Shareholder meeting and votes
- Sep 18, 268-K ↗Current report · Entered a material agreement
- Sep 14, 26SCHEDULE 13D/A ↗Stake with intent to influence · Stephanie Athena Foglia · 17.4% · event on Sep 10, 26 · amendment
- Sep 9, 26Form 4 ↗Insider transaction
- Aug 13, 26SCHEDULE 13G/A ↗Passive stake · Aspasia Felice Vahaviolos · 19.2% · event on Jun 30, 26 · amendment
- Aug 10, 2610-Q ↗Quarterly report
- Aug 10, 268-K ↗Current report · Results
- Jun 12, 26SCHEDULE 13D/A ↗Stake with intent to influence · Stephanie Foglia · 18.6% · event on Jun 10, 26 · amendment
1,051 filings on record, the oldest from Oct 7, 09.
Listing the 25 most recent filings of the 1,051 on record.
2638
- Sep 18, 26Entered a material agreement+4 more in the same filing8-K 1.01 ↗
6 senior executive changes2024 – 2025show all 6hide
- Sep 10, 25A senior executive left or was appointed+1 more in the same filing8-K 5.02 ↗
- Feb 13, 25A senior executive left or was appointed8-K 5.02 ↗
- Jan 2, 25A senior executive left or was appointed+1 more in the same filing8-K 5.02 ↗
- Jan 2, 25A senior executive left or was appointed+1 more in the same filing8-K/A 5.02 ↗
- Dec 16, 24A senior executive left or was appointed+2 more in the same filing8-K 5.02 ↗
- Dec 5, 24A senior executive left or was appointed+2 more in the same filing8-K 5.02 ↗
- Oct 30, 24A material agreement was terminated+1 more in the same filing8-K 1.02 ↗
- May 20, 24A senior executive left or was appointed+1 more in the same filing8-K 5.02 ↗
- Mar 1, 24Entered a material agreement+1 more in the same filing8-K 1.01 ↗
3 senior executive changes2023show all 3hide
- Dec 8, 23A senior executive left or was appointed+1 more in the same filing8-K 5.02 ↗
- Oct 13, 23A senior executive left or was appointed+2 more in the same filing8-K 5.02 ↗
- Oct 10, 23A senior executive left or was appointed+3 more in the same filing8-K 5.02 ↗
- Apr 3, 23Auditor change filing (8-K Item 4.01)+1 more in the same filing8-K 4.01 ↗
- Mar 8, 23Entered a material agreement+2 more in the same filing8-K 1.01 ↗
- Feb 9, 23A senior executive left or was appointed+1 more in the same filing8-K 5.02 ↗
- Aug 2, 22Entered a material agreement+1 more in the same filing8-K 1.01 ↗
- May 20, 21Entered a material agreement+2 more in the same filing8-K 1.01 ↗
- Mar 29, 21A senior executive left or was appointed8-K 5.02 ↗
8 older filings not shown · The record reaches back to Oct 20, 09.
Corporate events are tracked from 2004-08-23, when the SEC renumbered 8-K items. Earlier filings use an incompatible numbering and are not classified here.
Schedule 13D: stake and stated purpose
Filed by holders above 5% of a share class who cannot use the short form. It includes the investor's stated purpose: read it before assuming they seek influence.
- Aspasia Felice Vahaviolos19.1%Sep 17, 26SCHEDULE 13D/A ↗3 co-filers on this document — the figure is the largest single stake, not their sum. · 1 earlier filing
- Stephanie Foglia18.6%Jun 10, 26SCHEDULE 13D/A ↗2 co-filers on this document — the figure is the largest single stake, not their sum. · 2 earlier filings
- Stephanie Athena Foglia17.4%Sep 10, 26SCHEDULE 13D/A ↗2 co-filers on this document — the figure is the largest single stake, not their sum.
- Mill Road Capital III, L.P.6.1%Sep 16, 26SCHEDULE 13D/A ↗3 co-filers on this document — the figure is the largest single stake, not their sum. · 2 earlier filings
Schedule 13G: short-form filing
The short form, for holders who meet specific requirements: institutional investors, passive investors without a control purpose, or exempt investors. Asset managers and index funds usually file it.
- Aspasia Vahaviolos19.3%Dec 31, 25SCHEDULE 13G ↗1 earlier filing
- Aspasia Felice Vahaviolos19.2%Jun 30, 26SCHEDULE 13G/A ↗
- Kristy Kyriakopoulos5.3%Jul 8, 25SCHEDULE 13G ↗1 earlier filing
- Dimensional Fund Advisors LP5.2%Jun 30, 25SCHEDULE 13G ↗
- Stephanie Foglia5.1%Jul 8, 25SCHEDULE 13G ↗
Structured 13D/G data starts 2023-12, when the SEC moved these filings to a machine-readable format. Earlier filings exist but are not parsed here.
Stock compensation, tax and giftsshow the 36 other transactionshide
Stock compensation, tax withholding, option exercises and gifts. They are listed separately and are not included in the purchase and sale totals. The type describes the transaction, not the filer's intent.
- Sep 20, 26Tax$14KGennaro A. D'AlterioEVP, Chief Commercial Officer↗
- Sep 18, 26Tax$32KEileen Mary CogginsChief Legal Officer↗
- Sep 10, 26Giftamount n/aStephanie Athena Foglia↗
- Sep 10, 26Giftamount n/aAspasia Felice Vahaviolos↗
- Sep 8, 26Tax$47KNATALIA SHUMAN-FABBRIPresident and CEO↗
- Jun 10, 26Giftamount n/aStephanie Athena Foglia↗
- Jun 10, 26Giftamount n/aAspasia Felice Vahaviolos↗
- May 19, 26Compensationamount n/aCHARLES P PIZZI↗
- May 19, 26Compensationamount n/aMichelle Lohmeier↗
- May 19, 26Compensationamount n/aJAMES J FORESE↗
- May 19, 26Compensationamount n/aRICHARD H GLANTON↗
- May 19, 26Compensationamount n/aNICHOLAS DEBENEDICTIS↗
- Apr 27, 26Giftamount n/aStephanie Athena Foglia↗
- Mar 26, 26Tax$43KHanei Wail HammadEVP & Chief Operating Officer↗
- Mar 22, 26Tax$19KEdward J PrajznerSr. EVP and CFO↗
- Mar 16, 26Tax$33KEdward J PrajznerSr. EVP and CFO↗
- Mar 7, 26Tax$38KEdward J PrajznerSr. EVP and CFO↗
- Mar 4, 26Tax$3KGennaro A. D'AlterioEVP, Chief Commercial Officer↗
- Mar 4, 26Tax$11KEdward J PrajznerSr. EVP and CFO↗
- Mar 4, 26Tax$5KHanei Wail HammadEVP & Chief Operating Officer↗
- Mar 4, 26Tax$13KManuel N. StamatakisExecutive Chairman↗
- Feb 28, 26Tax$10KGennaro A. D'AlterioEVP, Chief Commercial Officer↗
- Feb 28, 26Tax$13KGennaro A. D'AlterioEVP, Chief Commercial Officer↗
- Feb 28, 26Tax$20KEdward J PrajznerSr. EVP and CFO↗
- Feb 25, 26Compensationamount n/aGennaro A. D'AlterioEVP, Chief Commercial Officer↗
- Feb 25, 26Compensationamount n/aHanei Wail HammadEVP & Chief Operating Officer↗
- Feb 25, 26Compensationamount n/aEileen Mary CogginsEVP, General Counsel↗
- Feb 25, 26Compensationamount n/aEdward J PrajznerSr. EVP and CFO↗
- Feb 25, 26Compensationamount n/aManuel N. StamatakisExecutive Chairman↗
- Feb 25, 26Compensationamount n/aNATALIA SHUMAN-FABBRIPresident and CEO↗
- Jan 5, 26Tax$34KEdward J PrajznerSr. EVP and CFO↗
- Jan 2, 26Compensationamount n/aManuel N. StamatakisExecutive Chairman↗
- Dec 31, 25Giftamount n/aAspasia Felice Vahaviolos↗
- Dec 31, 25Giftamount n/aAspasia Felice Vahaviolos↗
- Dec 4, 25Giftamount n/aCHARLES P PIZZI↗
- Sep 24, 25Tax$5KGennaro A. D'AlterioEVP, Chief Commercial Officer↗
The full record holds 158 transactions and goes back to Dec 23, 19.
Its sector and its market
Mistras Group Inc among Industrials companies
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- 250 clean closes in the period.
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- 1,051 documents on file, from Oct 7, 2009 to Oct 15, 2026.
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Those filed with the SEC by the company, its insiders and its major shareholders, within our coverage: periodic reports (10-K, 10-Q, 20-F), material events (8-K), proposed sale notices (Form 144), insider transactions (Form 4) and stakes above 5% (13D/13G). Each links to the original on EDGAR.
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