When did Mistras Group Inc file this 8-K?

Mistras Group Inc (MG) filed this Current Report (Form 8-K) with the SEC on May 20, 2026. The accession number assigned by EDGAR is 0001628280-26-036918.

What does an 8-K disclose?

Form 8-K is the SEC's current-report form, used to disclose material events between periodic reports (10-K / 10-Q). Triggers include CEO/CFO departures, acquisitions, bankruptcies, earnings releases, auditor changes, changes in fiscal year, and amendments to corporate governance. Each 8-K is keyed to one or more Item numbers (1.01 through 9.01).

What is the key takeaway from this filing?

Seven directors elected; PwC retained as auditor; LTIP amendment and executive compensation programs approved. This is Boardroom Alpha's one-line summary of the current report; see the full filing text above for the formal disclosure.

What Item codes does an 8-K cover?

An 8-K's Item codes (1.01 through 9.01) specify what kind of event is being disclosed — e.g. Item 1.01 for entering a material agreement, Item 5.02 for departure/election of directors and executive officers, Item 8.01 for other events. The Item codes for this 8-K appear in the filing text above.

Where can I find Mistras Group Inc's prior current reports on EDGAR?

The SEC EDGAR browser lists every 8-K Mistras Group Inc has filed under CIK 1436126, sortable by date. Use the "View on SEC EDGAR" link in the page header, or browse directly via https://www.sec.gov/cgi-bin/browse-edgar.

Boardroom Alpha

MG · Current Report (Form 8-K) · Filed May 20, 2026

Mistras Group Inc — Current Report (Form 8-K)

Form

8-K

Filed

May 20, 2026

Period

May 19, 2026

Ticker

Accession

0001628280-26-036918

Mistras Group Inc on Boardroom Alpha View on SEC EDGAR

Boardroom Alpha · Filing insights

Seven directors elected; PwC retained as auditor; LTIP amendment and executive compensation programs approved.

About Mistras Group Inc

Market cap

$574M

1Y TSR

+130.0%

3Y TSR

+33.7%

Board grade

C+

Sector

Industrials

CEO

Natalia Shuman-Fabbri

Last annual meeting: May 19, 2026 · View full Mistras Group Inc profile →

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
Princeton Junction,	New Jersey	8550
(Address of principal executive offices)		(Zip Code)

Registrant’s telephone number, including area code: (609) 716-4000

Not Applicable

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2 below):

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d 2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:


Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common Stock, $0.01 par value	MG	New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. o

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

Mistras Group, Inc. (the “Company”) held its 2026 annual shareholders meeting on May 19, 2026. Shareholders (1) elected the seven nominees to the Company’s Board of Directors for one-year terms, (2) ratified the appointment of PricewaterhouseCoopers LLP as the Company’s independent registered public accounting firm for 2026, (3) approved the Amendment to the MISTRAS Group, Inc., Amended and Restated 2016 Long-Term Incentive Plan; and (4) approved the Company’s executive compensation programs. These were the only matters voted upon at the meeting. The voting results are set forth below.

1. The seven nominees for election to the Board of Directors were elected based upon the following votes:


Nominee	Votes For	Withheld	Broker Non-Votes
Nicholas DeBenedictis	26,230,415	318,084	3,536,377
James J. Forese	26,110,436	438,063	3,536,377
Richard H. Glanton	25,663,880	884,619	3,536,377
Michelle J. Lohmeier	26,271,656	276,843	3,536,377
Charles P. Pizzi	26,358,575	189,924	3,536,377
Natalia Shuman	26,280,588	267,911	3,536,377
Manuel N. Stamatakis	25,691,998	856,501	3,536,377

2. The appointment of PricewaterhouseCoopers LLP as the Company’s independent registered public accounting firm for 2026 was ratified based upon the following votes:


			Number of Votes
Votes for approval			29,907,768
Votes against			164,402
Abstentions			12,706

There were no broker non-votes for this item.

3. The approval of the Amendment to the MISTRAS Group, Inc. Amended and Restated 2016 Long-Term Incentive Plan was approved based on the following votes:


			Number of Votes
Votes for approval			25,998,434
Votes against			504,542
Abstentions			45,523
Broker Non-votes			3,536,377

4. The advisory vote on the Company’s executive compensation was approved based upon the following votes:


			Number of Votes
Votes for approval			26,123,604
Votes against			212,125
Abstentions			212,770
Broker Non-votes			3,536,377

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.


	MISTRAS GROUP, INC.


Date: May 20, 2026	By:	/s/ Eileen M. Coggins
		Name:	Eileen M. Coggins
		Title:	Executive Vice President, General Counsel and Secretary

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More filings

Other filings from Mistras Group Inc (MG)

10-QQuarterly Report
May 7, 2026
8-KCurrent Report
May 5, 2026
DEFA14AAdditional Proxy Materials
Apr 7, 2026
DEF 14AProxy Statement
Apr 7, 2026
10-KAnnual Report
Mar 11, 2026
8-KCurrent Report
Mar 4, 2026
10-QQuarterly Report
Nov 6, 2025
8-KCurrent Report
Nov 4, 2025
8-KCurrent Report
Sep 10, 2025
10-QQuarterly Report
Aug 11, 2025
8-KCurrent Report
Aug 6, 2025
8-KCurrent Report
May 23, 2025

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Reference

Frequently asked questions

When did Mistras Group Inc file this 8-K?: Mistras Group Inc (MG) filed this Current Report (Form 8-K) with the SEC on May 20, 2026. The accession number assigned by EDGAR is 0001628280-26-036918.
What does an 8-K disclose?: Form 8-K is the SEC's current-report form, used to disclose material events between periodic reports (10-K / 10-Q). Triggers include CEO/CFO departures, acquisitions, bankruptcies, earnings releases, auditor changes, changes in fiscal year, and amendments to corporate governance. Each 8-K is keyed to one or more Item numbers (1.01 through 9.01).
What is the key takeaway from this filing?: Seven directors elected; PwC retained as auditor; LTIP amendment and executive compensation programs approved. This is Boardroom Alpha's one-line summary of the current report; see the full filing text above for the formal disclosure.
What Item codes does an 8-K cover?: An 8-K's Item codes (1.01 through 9.01) specify what kind of event is being disclosed — e.g. Item 1.01 for entering a material agreement, Item 5.02 for departure/election of directors and executive officers, Item 8.01 for other events. The Item codes for this 8-K appear in the filing text above.
Where can I find Mistras Group Inc's prior current reports on EDGAR?: The SEC EDGAR browser lists every 8-K Mistras Group Inc has filed under CIK 1436126, sortable by date. Use the "View on SEC EDGAR" link in the page header, or browse directly via https://www.sec.gov/cgi-bin/browse-edgar.

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