AmBase Corp (ABCP): auditor change — AmBase auditor Marcum resigns; CBIZ CPAs engaged as new auditor

AmBase Corp

Marcum LLP resigned as independent registered public accounting firm on April 22, 2025; no disagreements or reportable events.
Prior audit reports for FY2024 and FY2023 included a going-concern explanatory paragraph.
CBIZ CPAs P.C., which acquired Marcum's attest business, was engaged as new auditor for FY2025 effective same date.
Neither the company nor anyone on its behalf consulted CBIZ on accounting matters prior to engagement.

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

AmBase Corp engaged CBIZ CPAs P.C. as its auditor.

Action: engagement
Auditor: CBIZ CPAs P.C.

Exact text from the filing

On April 22, 2025, with the approval of the Company’s Accounting and Audit Committee, CBIZ CPAs was engaged as the Company’s new independent registered public accounting firm for the fiscal year ending December 31, 2025.

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

Marcum LLP resigned as auditor of AmBase Corp.

Action: resignation
Auditor: Marcum LLP
Successor: CBIZ CPAs P.C.

Exact text from the filing

On April 22, 2025, the Company was notified by Marcum that Marcum resigned as the Company’s independent registered public accounting firm.

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Source: SEC EDGAR

accession 0001140361-25-014937

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