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ACFN 8-K: Auditor change

Filed with the SEC on · accession 0001493152-26-051707

ACFN filed a 8-K (current report) with the SEC on Nov 13, 2026. Acorn Energy dismissed CBIZ CPAs P.C. as its independent registered public accounting firm and engaged M&K CPAS, PLLC as its new auditor, effective November 6, 2026. The stock moved -2.1% by the first close after the filing.

Summary of the filing

Acorn Energy dismissed CBIZ CPAs P.C. as its independent registered public accounting firm and engaged M&K CPAS, PLLC as its new auditor, effective November 6, 2026. The prior auditor's reports contained no adverse opinions or disagreements, though prior material weaknesses in internal controls were disclosed and remediated in 2025.

For details, click here →How to read a 8-K →

Key details

RegistrantAcorn Energy, Inc.
Former independent registered public accounting firm (dismissed)CBIZ CPAs P.C.
New independent registered public accounting firm (engaged)M&K CPAS, PLLC
Chief financial officerTracy S. Clifford

How ACFN stock reacted

Close before

$15.25

Nov 12, 2026

First close after

-2.10%

$14.93

5 trading days

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Since filing

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Frequently asked questions

What did ACFN file with the SEC on Nov 13, 2026?

ACFN filed a 8-K (Auditor change). Acorn Energy dismissed CBIZ CPAs P.C. as its independent registered public accounting firm and engaged M&K CPAS, PLLC as its new auditor, effective November 6, 2026. The prior auditor's reports contained no adverse opinions or disagreements, though prior material weaknesses in internal controls were disclosed and remediated in 2025.

What does a auditor change mean for ACFN stock?

The stock often falls sharply. In a Chapter 11 reorganization existing shares are frequently cancelled or heavily diluted; in Chapter 7 the company is liquidated and shareholders are paid last, usually nothing.

How do I read a 8-K?

A report of a major event, filed within four business days: results, deals, leadership changes, bankruptcy and more. The "Item" number tells you the topic (e.g. 2.02 results, 5.02 executive change, 1.01 new agreement, 1.03 bankruptcy). Exhibits (99.1 press release) usually hold the details.

Why are SEC filings important?

Public companies must tell the SEC about anything that can change their value — results, leadership changes, big deals, new shares, bankruptcy. Filings are the official source, often before the news. A 8-K (current report): A report of a major event, filed within four business days: results, deals, leadership changes, bankruptcy and more.

How did ACFN stock react to this filing?

ACFN closed at $15.25 before the filing and $14.93 on Nov 13, 2026 (-2.10%).

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