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  4. [8-K] EXTREME NETWORKS INC Reports Material Event

Extreme Networks (EXTR) replaces Grant Thornton with Deloitte

Filing Impact
(Moderate)
Filing Sentiment
(Neutral)
Form Type
8-K

Rhea-AI Filing Summary

EXTREME NETWORKS, INC. (EXTR) reported that its Audit Committee dismissed Grant Thornton LLP as independent registered public accounting firm effective August 21, 2026, and appointed Deloitte & Touche LLP for the fiscal year ending June 30, 2027 and related interim periods.

Grant Thornton’s audit reports for the fiscal years ended June 30, 2026 and June 30, 2025 contained no adverse opinion, disclaimer of opinion, or qualification related to uncertainty, audit scope, or accounting principles. The company states there were no “disagreements” and no “reportable events” with Grant Thornton under Regulation S-K Item 304 during those periods or through August 21, 2026.

The company also states that, during the same time frame, neither it nor anyone acting on its behalf consulted Deloitte on accounting principles, potential audit opinions, or any matters that would have constituted a disagreement or reportable event.

Positive

  • None.

Negative

  • None.
Item 4.01 Changes in Registrant's Certifying Accountant Governance
The company changed its independent auditing firm, which may involve disagreements on accounting matters.
Item 9.01 Financial Statements and Exhibits Exhibits
Financial statements, pro forma financial information, or exhibit attachments filed with this report.
Effective date of Grant Thornton dismissal August 21, 2026 Date the Audit Committee approved dismissal of Grant Thornton as auditor
Appointment date of Deloitte & Touche LLP August 21, 2026 Date Deloitte was appointed independent registered public accounting firm
Fiscal year covered by new auditor Fiscal year ending June 30, 2027 Period for which Deloitte will serve as auditor
Most recent audited fiscal year end June 30, 2026 Most recent fiscal year for which Grant Thornton issued audit reports
Grant Thornton response letter date August 26, 2026 Date of Grant Thornton letter filed as Exhibit 16.1
independent registered public accounting firm financial
"approved the dismissal of Grant Thornton LLP as the Company’s independent registered public accounting firm"
An independent registered public accounting firm is an outside accounting company officially registered with the government regulator to examine and report on a public company's financial records and controls. Investors treat its reports like an impartial inspector’s certificate — they add credibility to financial statements, help spot errors or misleading claims, and reduce the risk that shareholders are relying on unchecked or biased numbers.
reportable events regulatory
"there were (i) no “disagreements” ... and (ii) no “reportable events”"
Reportable events are significant incidents or changes a company is legally required to disclose to regulators and the public, such as major safety problems, legal actions, financial irregularities, or management changes. They matter to investors because these events can alter a company’s risk profile or future performance, much like a dashboard warning light signals a problem that could affect a car’s safety or reliability. Timely disclosure helps investors make informed decisions and maintain market fairness.
disagreements regulatory
"no “disagreements” (within the meaning of Item 304(a)(1)(iv) of Regulation S-K)"
Regulation S-K regulatory
"within the meaning of Item 304(a)(1)(iv) of Regulation S-K"
A set of U.S. Securities and Exchange Commission rules that tell public companies which narrative and qualitative details must be disclosed in filings, such as risk factors, management discussion, executive pay, legal proceedings and business description. Think of it as a standardized checklist or blueprint that ensures investors get the same types of background information from every company so they can compare risks, management quality and strategy before making investment decisions.
Item 304(a)(1)(iv) regulatory
"within the meaning of Item 304(a)(1)(iv) of Regulation S-K"

FAQ

What auditor change did EXTR announce on August 21, 2026?
The Audit Committee dismissed Grant Thornton LLP as Extreme Networks’ independent registered public accounting firm and appointed Deloitte & Touche LLP as auditor for the fiscal year ending June 30, 2027 and related interim periods, effective August 21, 2026.

Did Grant Thornton issue any adverse opinions on EXTR’s recent financial statements?
No. Grant Thornton’s reports on Extreme Networks’ consolidated financial statements for the fiscal years ended June 30, 2026 and June 30, 2025 had no adverse opinion, no disclaimer of opinion, and were not qualified or modified as to uncertainty, audit scope, or accounting principles.

Were there any disagreements between EXTR and Grant Thornton under Regulation S-K Item 304?
Extreme Networks states that during the fiscal years ended June 30, 2026 and June 30, 2025, and through August 21, 2026, there were no “disagreements” and no “reportable events” with Grant Thornton within the meaning of Regulation S-K Item 304.

Did EXTR consult Deloitte before appointing it as auditor?
The company states that during its two most recent fiscal years and through August 21, 2026, neither Extreme Networks nor anyone acting on its behalf consulted Deloitte & Touche LLP on specific accounting applications, potential audit opinions, or any matter that would be a disagreement or reportable event.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Understanding 8-K Material Events →
0001078271false00010782712026-08-212026-08-21

 

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): August 21, 2026

 

EXTREME NETWORKS, INC.

(Exact name of registrant as specified in its charter)

 

 

 

 

 

 

 

Delaware

000-25711

77-0430270

(State or other jurisdiction

of incorporation)

(Commission

File No.)

(I.R.S. Employer

Identification No.)

2121 RDU Center Drive, Suite 300

Morrisville, North Carolina 27560

(Address of principal executive offices)

Registrant's telephone number, including area code:

(408) 579-2800

 

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:

 

☐

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

 

EXTR

 

NASDAQ Global Select Market

 

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. ☐

 

Item 4.01 Changes in Registrant’s Certifying Accountant

On, and effective as of, August 21, 2026, the Audit Committee (the “Audit Committee”) of the Board of Directors of Extreme Networks, Inc. (the “Company”) approved the dismissal of Grant Thornton LLP (“GT”) as the Company’s independent registered public accounting firm. Also on, and effective as of, August 21, 2026, the Audit Committee approved the appointment of Deloitte & Touche LLP (“Deloitte”) as the Company’s independent registered public accounting firm for the Company’s fiscal year ending June 30, 2027, and related interim periods.

GT’s reports on the Company’s consolidated financial statements for the fiscal years ended June 30, 2026, and June 30, 2025, did not contain an adverse opinion or a disclaimer of opinion, nor were they qualified or modified as to uncertainty, audit scope, or accounting principles.

During the Company’s fiscal years ended June 30, 2026, and June 30, 2025, and during the subsequent interim period through August 21, 2026, there were (i) no “disagreements” (within the meaning of Item 304(a)(1)(iv) of Regulation S-K) between the Company and GT on any matter of accounting principles or practices, financial statement disclosure, or auditing scope or procedures, which if not resolved to GT’s satisfaction, would have caused GT to make reference to the subject matter of the disagreements in its reports, and (ii) no “reportable events” (within the meaning of Item 304(a)(1)(v) of Regulation S-K).

Pursuant to Item 304(a)(3) of Regulation S-K, the Company provided GT with a copy of the disclosures in this Current Report on Form 8-K (this “Report”) prior to filing this Report with the Securities and Exchange Commission (the “SEC”). The Company requested that GT furnish a letter addressed to the SEC stating whether GT agrees with the statements set forth above. A copy of GT’s letter dated August 26, 2026, is filed as Exhibit 16.1 to this Report.

During the Company’s two most recent fiscal years ended June 30, 2026, and June 30, 2025, and during the subsequent interim period through August 21, 2026, neither the Company nor anyone acting on its behalf consulted Deloitte regarding either (i) the application of accounting principles to a specific transaction, completed or proposed, or the type of audit opinion that might be rendered on the Company’s consolidated financial statements, and neither a written report nor oral advice was provided to the Company that Deloitte concluded was an important factor considered by the Company in reaching a decision as to any accounting, auditing, or financial reporting issue, or (ii) any matter that was either the subject of a “disagreement” (within the meaning of Item 304(a)(1)(iv) of Regulation S-K) or a “reportable event” (within the meaning of Item 304(a)(1)(v) of Regulation S-K).

 

 

Item 9.01 Financial Statements and Exhibits

(d) Exhibits.

           16.1

Letter from Grant Thornton LLP to SEC dated August 26, 2026

           104

 

Cover Page Interactive Data File (embedded within the Inline XBRL document)

 

SIGNATURES

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.

Date: August 26, 2026

EXTREME NETWORKS, INC.

 

By:

 

/s/ Kevin Rhodes

 

Kevin Rhodes

 

 Executive Vice President, Chief Financial Officer (Principal Accounting Officer)

Source: View Original Filing on SEC EDGAR

Filing Exhibits & Attachments

2 documents

Other Documents