Auditor Swap at Extreme Networks: Grant Thornton Out, Deloitte In
EXTR sits 70% above its 52-week low of $13.475.
Summary
Extreme Networks replaced Grant Thornton with Deloitte & Touche as its independent auditor, effective August 21, 2026, with no reported disagreements or reportable events.
Key Events · Corporate Governance and Compliance · EXTR
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Auditor Change
Grant Thornton was dismissed and Deloitte & Touche appointed as the independent registered public accounting firm, effective August 21, 2026.
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Clean Handoff
No disagreements or reportable events with Grant Thornton during fiscal years 2026 and 2025 or the subsequent interim period through August 21, 2026.
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No Prior Deloitte Consultations
The company did not consult Deloitte on any accounting principles or audit opinions during the two most recent fiscal years or subsequent interim period.
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Exhibit Filed
Grant Thornton's letter to the SEC dated August 26, 2026, agreeing with the statements in Item 4.01, is filed as Exhibit 16.1.
Analysis · EXTR · Technology
Effective August 21, 2026, Extreme Networks dismissed Grant Thornton as its independent auditor and brought in Deloitte & Touche. The filing indicates a clean handoff—no disagreements or reportable events with Grant Thornton, and no prior consultations with Deloitte on accounting matters. Auditor changes often attract scrutiny because they can signal restatements or control weaknesses, but the absence of any stated disputes here tempers that concern. This is the first public disclosure of the change.
How filings like this one have moved
In the 30 days to Sep 10, 2026, 29.9% of the 1988 measured filings Wiseek scored 7 moved their stock by 5% or more by the next session's close. The median move was -0.12%. These are measured outcomes after filings of this importance, not a forecast for this one.
Measured one observation per ticker per day, after exclusions. Current figures: Filing Impact Tracker · open dataset
At the time of this filing, EXTR was trading at $22.90 on NASDAQ in the Technology sector, with a market capitalization of approximately $3B. The 52-week trading range was $13.48 to $33.73. This filing was assessed with neutral market sentiment and an importance score of 7 out of 10.