ACORN ENERGY, INC. (ACFN): auditor change — Acorn Energy replaces Marcum with CBIZ CPAs as independent auditor

ACORN ENERGY, INC.

Marcum LLP resigned as auditor on April 7, 2025; Acorn engaged CBIZ CPAs P.C. same day.
No adverse opinions or disagreements with Marcum for fiscal years 2023 and 2024.
Previously reported material weaknesses in internal controls (ITGC, segregation of duties, deferred tax analysis) cited.
Marcum provided a letter (Exhibit 16) regarding the resignation, filed with the SEC.

item 4.01 item 9.01

Key facts

Extracted from this filing and checked against the source text.

Auditor Changes SEC 8-K Item 4.01/4.02 confidence 0.9

Marcum LLP resigned as auditor of ACORN ENERGY, INC..

Action: resignation
Auditor: Marcum LLP

Exact text from the filing

On April 7, 2025, Marcum informed Acorn Energy, Inc. (the “Registrant”) that Marcum resigned as the Registrant’s independent registered public accounting firm.

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Auditor Changes SEC 8-K Item 4.01/4.02 confidence 0.9

ACORN ENERGY, INC. engaged CBIZ CPAs P.C. as its auditor.

Action: engagement
Auditor: CBIZ CPAs P.C.

Exact text from the filing

Also on April 7, 2025, the Registrant, with the approval of the Audit Committee of the Registrant’s Board of Directors, engaged CBIZ CPAs P.C. as the Registrant’s independent registered public accounting firm.

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Source: SEC EDGAR

accession 0001641172-25-003400

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