Questions / How to read a filing
What do Form 8-K Items 4.01 and 4.02 mean for investors?
By OQRO. Published . 4 min read. Last reviewed .

The short answer
Item 4.01 of Form 8-K reports that a company's independent accountant resigned, declined to stand for re-appointment or was dismissed, and that a new one was engaged. Item 4.02 reports that the company concluded previously issued financial statements should no longer be relied upon because of an error. Both are filed within four business days.
Information as of 15 October 2026. Everything below comes from the SEC's Form 8-K instructions, linked below. If anything here is wrong, tell us at contact@oqro.io and we will correct it.
What does Item 4.01 report?
Item 4.01 is titled Changes in Registrant's Certifying Accountant. According to the form's instructions, it applies when an independent accountant who was engaged as the principal accountant to audit the company's financial statements resigns, indicates that it declines to stand for re-appointment after the current audit, or is dismissed. It also applies to an independent accountant on whom the principal accountant expressed reliance in its report on a significant subsidiary.
When that happens, the company has to disclose the information that the SEC's Regulation S-K, in Item 304(a)(1), requires about the change. That rule is titled Changes in and disagreements with accountants on accounting and financial disclosure. The second part of the item covers the other side: if a new independent accountant has been engaged, the company discloses the information required by the corresponding paragraph of that rule. A single filing can therefore report both the end of one engagement and the start of another.
What does Item 4.02 report?
Item 4.02 is titled Non-Reliance on Previously Issued Financial Statements or a Related Audit Report or Completed Interim Review. The form says it applies if the board of directors, a committee of the board, or the officer or officers authorized to act when board action is not required conclude that previously issued financial statements, covering one or more years or interim periods, should no longer be relied upon because of an error in those statements, as addressed in the accounting standard on accounting changes and error corrections.
The company then discloses, among other things, the date of the conclusion and an identification of the financial statements and the years or periods covered. In plain words, Item 4.02 is the filing that a company makes when it tells the market that numbers it published earlier are not to be relied on. The instructions list what else the company must say, and the filing itself is the place to read it.
When are the reports due?
Unless an item says otherwise, the form says a report is to be filed or furnished within four business days after the event occurs. The event under Item 4.01 is the resignation, the decision not to stand for re-appointment or the dismissal, or the engagement of a new accountant; the event under Item 4.02 is the conclusion described above. The four business day period starts on the next business day when the event falls on a weekend or a holiday on which the SEC is closed.
How does OQRO use these items?
OQRO's red flags page lists auditor changes, restatements, officer departures, material weakness disclosures and delisting notices that companies reported in their own filings, together with the insider sales filed in the weeks before each one. These two items are the source of the auditor change and the restatement entries.
The listing is a reading of what filings state. A company can change auditors for ordinary reasons, and the filing is the place to see whether it describes any disagreement, which the text of the item asks about. An Item 4.02 filing states a conclusion about earlier numbers; it does not by itself say how large the error is, and the text under the item usually does.
How should a reader handle one?
Open the filing and read what it says about the reason. For Item 4.01, check whether the company states a disagreement or a reportable event in the text, and whether a new accountant has already been named. For Item 4.02, check which periods are affected and whether the company says it has corrected or will correct them in a later report.
Then compare with the company's later periodic reports, where corrected figures appear. For the due dates of those reports, see when annual and quarterly reports are due.
What this does not tell you
Neither item says that a company's accounts are wrong beyond what the filing states, and neither says anything about its future results. An auditor change is not by itself a restatement, and a restatement is not by itself a sign of misconduct: the item states that an error was found, and the filing describes it. The items also do not cover every accounting event; other reports and other items cover other matters.
OQRO shows what the company states and when the SEC accepted it. It does not rate the quality of anyone's accounts or predict a stock's move. Nothing here is investment advice.
Sources
- SEC, Form 8-K (general instructions and Items 4.01 and 4.02) (opened October 15, 2026)
- eCFR, 17 CFR 229.304 (Item 304 of Regulation S-K) (opened October 15, 2026)
More questions on this topic
Explore the data
This explains public filings in plain words. It is not legal or investment advice. Corrections: contact page.