What is an Item 4.02 8-K?

Item 4.02, Non-Reliance on Previously Issued Financial Statements, is filed when a company or its auditor concludes that previously issued financial statements should no longer be relied on because of an error. It usually leads to a restatement.

Is an auditor change always a bad sign?

No. Companies change auditors to cut fees or after a merger. It is a warning sign when the auditor resigned, when there were disagreements or reportable events, or when the change happens close to a filing deadline. The former auditor's Exhibit 16 letter says whether it agrees with the company's description.

Does an Item 3.01 notice mean the stock will be delisted?

Not necessarily. Most notices start a cure period. On Nasdaq a company whose shares close below $1 for 30 consecutive business days typically gets 180 calendar days to regain compliance. Many companies cure the deficiency, often with a reverse stock split.

What does Item 2.04 mean?

Item 2.04 reports a triggering event, such as a covenant breach, that accelerates or increases a direct financial obligation. It can mean lenders can demand repayment early.

How quickly are these items filed?

Like most 8-K items, within four business days of the event. Item 1.05 cybersecurity incidents are due within four business days of the company determining the incident is material.

8-K Red Flags: Item 4.02, 4.01, 3.01 and 1.03 Explained

Why rare items matter

Most 8-Ks are routine. Earnings releases, investor presentations and board elections account for the bulk of the roughly 230 8-Ks filed on a typical business day. A few items are different. They are filed only when something has gone wrong with the numbers, the auditor, the listing or the balance sheet, and they are easy to miss in the flood.

Read our guide to 8-K item codes for the full list. This guide focuses on the handful that deserve attention the day they are filed.

The red flags at a glance

4.02
25
filings
Non-relianceCritical
Past financial statements are wrong and should not be used. A restatement usually follows.
1.03
14
filings
BankruptcyCritical
The company filed for bankruptcy or a receiver was appointed. Equity is often wiped out.
2.04
17
filings
Debt accelerationCritical
A covenant breach or default lets lenders demand repayment early.
4.01
132
filings
Auditor changeHigh
Routine when fees drive it, serious when the auditor resigned or disagreed.
3.01
342
filings
Delisting noticeHigh
The exchange says a listing rule is not met, most often a share price under $1.
1.05
10
filings
Cyber incidentHigh
A cybersecurity incident the company has judged material.
2.06
7
filings
ImpairmentWatch
A material write-down of assets, often goodwill from an old acquisition.
5.02
2,467
filings
Sudden departureWatch
Most are planned. An abrupt CEO or CFO exit without a successor is the one to watch.

Counts are 8-K filings that included each item in the 13 weeks to October 2, 2026, across all SEC filers. Source: SignalX analysis of SEC EDGAR data.

Item 4.02: non-reliance on past financial statements

This is the strongest accounting signal an 8-K can carry. The company, or its auditor, has concluded that financial statements it already published contain an error serious enough that investors should stop relying on them. A restatement usually follows, and sometimes a late 10-K or 10-Q.

Read which periods are affected, what caused the error (revenue recognition and inventory are common), whether the auditor initiated it under Item 4.02(b), and whether the company also reports a material weakness in internal controls.

Item 4.01: change of auditor

Companies change auditors for ordinary reasons: lower fees, a merger, a rotation policy. The filing says whether the auditor was dismissed or resigned, and whether there were disagreements or "reportable events" in the last two fiscal years. The former auditor must send a letter, filed as Exhibit 16.1, saying whether it agrees with the company's account.

The pattern to worry about is an auditor resigning, any disclosed disagreement, a change late in the fiscal year, or a move from a large firm to a much smaller one.

SignalX's 8-K radar: the heatmap shows every item by week, and the risk radar lists the most severe filings first.Open the risk radar

Item 3.01: notice of delisting or a listing-rule failure

An exchange sends a deficiency notice when a company falls short of a continued listing standard. The most common reason is a share price below $1: on Nasdaq, 30 consecutive business days under $1 typically starts a 180-day window to regain compliance. Other reasons include late filings, too few independent directors and shareholders' equity below the minimum.

A notice is not a delisting. Many companies cure the problem, often with a reverse stock split. It does tell you the company is under pressure, and a second notice, or a missed deadline, is a stronger signal.

Item 1.03: bankruptcy or receivership

The company has filed for bankruptcy protection or a receiver has been appointed. In a Chapter 11 reorganization, existing shareholders are usually last in line and often receive little or nothing. Look for whether the company has a restructuring support agreement with lenders, which usually means a faster and more predictable process.

Other items worth a second look

Item 2.04, triggering events: a covenant breach or default that accelerates debt. Check the size of the obligation against cash on hand.
Item 1.05, cybersecurity incidents: required since December 2023 for incidents the company judges material, within four business days of that judgment.
Item 2.06, impairments: a write-down, often of goodwill from an acquisition that did not work out.
Item 5.02, sudden departures: especially a CFO leaving shortly before a filing deadline. Watch for insider selling in the weeks that follow, which our guide to insider selling covers.

What to check next

Read the exhibits: the auditor's Exhibit 16 letter, the exchange notice, the restructuring agreement.
Check the last 10-Q for going-concern language or a material weakness in controls.
Look at insider trading around the date. Selling before a red flag is a serious concern, buying after it can be a vote of confidence.
See whether more than one red flag has appeared in the past year. They tend to cluster.

8-K Red Flags: Restatements, Auditor Changes and Delisting Notices