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- Auditor Change (new) — Company dismissed Ernst & Young and appointed Grant Thornton as new auditor for fiscal 2026, though no disagreements or reportable events were disclosed.
Workiva switches auditors from Ernst & Young to Grant Thornton for fiscal 2026
Filed May 5, 2026 · Period ending April 30, 2026 · ~1 min read
Key Changes
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Workiva dismissed Ernst & Young as its independent auditor effective after Q1 2026 review completion and appointed Grant Thornton for fiscal 2026 and related interim periods.
Item 4.01 verify on EDGAR → -
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The company confirmed no disagreements with Ernst & Young on accounting principles, financial disclosures, or auditing procedures during fiscal 2024-2025 or the interim period through May 2026.
Item 4.01 verify on EDGAR → -
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Ernst & Young issued clean, unqualified audit opinions on Workiva's financial statements for fiscal years 2024 and 2025 with no adverse opinions or modifications.
Item 4.01 verify on EDGAR → -
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Ernst & Young submitted a letter to the SEC dated May 5, 2026, addressing the auditor change as required by SEC regulations.
Exhibit 16.1 verify on EDGAR →
Summary
Workiva changed its independent auditor on April 30, 2026, dismissing Ernst & Young after the firm completes its Q1 2026 review and appointing Grant Thornton for fiscal 2026.
While auditor changes always warrant attention, this transition appears orderly: Ernst & Young issued clean audit opinions for 2024 and 2025, and the company disclosed no accounting disagreements or reportable control issues during the relationship. For retail investors, auditor changes can signal underlying problems, but the clean disclosure here suggests a business decision rather than a red flag.
The timing—mid-year after Q1 review—is somewhat unusual, as most auditor changes occur at year-end. Grant Thornton is a reputable Big Five-adjacent firm, so audit quality should remain strong. Watch for any unusual items in upcoming 10-Q and 10-K filings that might explain the switch. Also monitor whether Grant Thornton identifies any material weaknesses or control deficiencies that weren't previously disclosed. The Ernst & Young letter filed as Exhibit 16.1 should confirm their agreement with the company's characterization of the relationship.
Section-by-Section Diff
Event · Item 4.01 — Changes in Registrant's Certifying Accountant
Item 4.01 — Changes in Registrant's Certifying Accountant filed; see Key Changes for terms.
Added in current filing · verify on EDGAR →
On April 30, 2026, the Audit Committee of the Board of Directors (the “Committee”) of Workiva Inc. (the “Company”) approved the dismissal of Ernst & Young LLP (“EY”) as the Company’s independent registered public accounting firm, effective immediately following the completion of their interim review of the Company’s unaudited interim consolidated financial statements for the quarter ended March 31, 2026, and the filing of the Company’s Quarterly Report on Form 10-Q for that interim period.
Workiva's Audit Committee dismissed Ernst & Young as the company's independent auditor, effective after EY completes its review of Q1 2026 financials. The dismissal was approved on April 30, 2026. The company disclosed no disagreements or reportable events with EY during the prior two fiscal years or subsequent interim period.
Added in current filing · verify on EDGAR →
On April 30, 2026, the Committee approved the engagement of Grant Thornton, LLP (“GT”) as its new independent registered public accounting firm for the Company’s fiscal year ending December 31, 2026 and related interim periods.
The Audit Committee appointed Grant Thornton as Workiva's new independent auditor for fiscal year 2026 and related interim periods. The company disclosed it had not consulted Grant Thornton on accounting or auditing matters during the prior two fiscal years or subsequent interim period.
Added in current filing · verify on EDGAR →
During the fiscal years ended December 31, 2025 and December 31, 2024, and the subsequent interim period preceding May 5, 2026, there were (i) no “disagreements” (as that term is defined in Item 304(a) (1) (iv) of Regulation S-K and the related instructions) with EY on any matter of accounting principles or practices, financial statement disclosure, or auditing scope or procedures, which disagreements, if not resolved to the satisfaction of EY, would have caused EY to make reference to the matter of the disagreement in their reports on the financial statements for such years and (ii) no “reportable events” (as that term is defined in Item 304(a) (1) (v) of Regulation S-K).
Workiva confirmed there were no disagreements with Ernst & Young on accounting principles, financial statement disclosure, or auditing procedures during fiscal 2024, 2025, or the interim period through May 5, 2026. There were also no reportable events as defined by SEC regulations. This disclosure indicates the auditor change was not driven by accounting disputes or control issues.
Event · Item 9.01 — Financial Statements and Exhibits
Workiva filed a letter from Ernst & Young LLP to the SEC, typically indicating an auditor change or resignation event.
Added in current filing · verify on EDGAR →
Letter from Ernst & Young LLP to the Securities and Exchange Commission, dated May 5, 2026
Workiva filed an Exhibit 16.1 letter from Ernst & Young LLP addressed to the SEC dated May 5, 2026. An Exhibit 16.1 letter is typically filed when a company changes auditors or when an auditor resigns, and the letter addresses whether the auditor agrees or disagrees with statements made by the company about the auditor relationship. The actual content of the letter is not provided in this 8-K body, but the filing of such a letter is material as it relates to the company's relationship with its independent auditor.
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Figures/quotes linked to EDGAR · Narrative written by AI · Jun 3, 2026 · How we verify