DEEP FISSION, INC. (FISN): auditor change — Deep Fission replaces auditor dbbmckennon with Grant Thornton; material weakness in internal controls disclosed
DEEP FISSION, INC.
Audit committee approved Grant Thornton as new independent auditor; dbbmckennon dismissed effective Feb 27, 2026.
Prior auditor reports for FY2024 and FY2023 included going concern qualification; no disagreements or reportable events.
Company disclosed material weakness in internal controls over financial reporting; no financial restatement occurred.
DEEP FISSION, INC. engaged Grant Thornton LLP as its auditor.
Action
engagement
Auditor
Grant Thornton LLP
Exact text from the filing
On February 27, 2026, the Audit Committee of the Board of Directors (the “Audit Committee”) of Deep Fission, Inc. (the “Company”) approved the engagement of Grant Thornton LLP (“Grant Thornton”) as the Company’s independent registered public accounting firm to audit the Company’s consolidated financial statements for the fiscal years ended December 31, 2024 and 2025.
DEEP FISSION, INC. dismissed dbbmckennon as its auditor.
Action
dismissal
Auditor
dbbmckennon
Successor
Grant Thornton LLP
Exact text from the filing
Accordingly, dbbmckennon (“dbbmckennon”), the Company’s independent registered public accounting firm since September 5, 2025, was informed that it would be replaced as the Company’s independent registered public accounting firm effective February 27, 2026.
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