What Is a Form 8-K?

Form 8-K is a current report that public companies are required to file with the SEC to announce major events that shareholders need to know about. Unlike quarterly (10-Q) or annual (10-K) reports, which are filed on a scheduled basis, an 8-K is filed promptly — generally within four business days — when a significant event occurs.

The SEC has designated specific "items" within the 8-K form, each corresponding to a category of reportable event. Item 1.01 covers entry into a material contract. Item 5.02 covers departure of executive officers. Item 4.02 covers non-reliance on previously issued financial statements.

Definition

Form 8-K — Current Report

An 8-K is the SEC form public companies use to disclose material events as they occur. It is the corporate equivalent of "breaking news" — a formal, legally required disclosure that something important has happened that investors need to know immediately. The SEC requires these filings within four business days of the triggering event.

Item 4.02: Non-Reliance on Previous Financial Statements

Item 4.02 of Form 8-K requires a company to file when its board of directors or audit committee has concluded — or been informed by management or outside auditors — that previously issued financial statements "should no longer be relied upon."

This language has a specific legal meaning. It signals that the financial information previously reported to investors — in quarterly 10-Q filings, annual 10-K filings, or earnings press releases — contained material errors significant enough that investors and analysts cannot rely on them for investment decisions.

The filing must typically disclose:

  • Which financial statements are affected (which quarters or years)
  • The fact that the statements should not be relied upon
  • The reason the board reached this conclusion (e.g., error identified by auditors, internal investigation finding)
  • The anticipated scope and nature of the required restatement

What Triggers a Non-Reliance Filing?

Non-reliance 8-K filings are triggered when a company discovers — or is informed by its auditors, audit committee, or regulators — that previously reported financial data was materially incorrect. Common triggers include:

  • Revenue recognition errors: The company recognized revenue in the wrong period or under the wrong accounting method
  • Expense misclassification: Costs were capitalized rather than expensed, understating reported losses
  • Auditor findings: External auditors, during their review, identify errors significant enough to require restatement
  • Internal investigations: An internal audit or whistleblower report reveals accounting manipulations
  • SEC inquiry: A comment letter from the SEC prompts the company to review its accounting and discover errors
  • Material weakness: Identification of a material weakness in internal controls over financial reporting

Key distinction: Not all accounting restatements are the result of intentional fraud. Some result from genuine errors or differences in accounting interpretation. However, when investors purchased stock at prices reflecting inaccurate financial data and suffered losses upon the restatement, they may still have securities fraud claims regardless of intent — particularly if the inaccuracies were reckless.

Market Impact: What Happens to the Stock

Non-reliance 8-K filings almost universally cause sharp, immediate stock price declines. This is because:

  1. Earnings uncertainty: If reported financials were wrong, the market must reprice the stock based on what the actual numbers might be — often pessimistically.
  2. Credibility destruction: Management credibility is severely damaged when financial restatements are disclosed. Investors price in a "credibility discount."
  3. Litigation risk premium: The market immediately anticipates securities fraud lawsuits, which represent liability on the company's balance sheet.
  4. Analyst downgrades: Research analysts typically suspend or reduce coverage and issue downgrades following a non-reliance filing.
  5. Institutional selling: Institutional investors with fiduciary obligations often sell upon disclosure of a restatement, creating additional downward price pressure.

This stock price drop — the "corrective disclosure" in securities law terminology — is what causes investors to suffer losses. The decline represents the market "correcting" for the artificially inflated price that resulted from the inaccurate financial statements.

When a company files a non-reliance 8-K and the stock drops, investors who purchased shares during the period when inaccurate financial data was circulating may have claims under:

  • Section 10(b) of the Securities Exchange Act of 1934 and SEC Rule 10b-5, which prohibit material misrepresentations or omissions in connection with the purchase or sale of securities
  • Section 20(a) of the Exchange Act, which establishes liability for controlling persons (executives who controlled the company)

To establish a claim, investors generally need to show:

  1. A material misrepresentation or omission was made
  2. The defendant acted with scienter (intent to defraud or reckless disregard for truth)
  3. The investor relied on the misrepresentation
  4. The investor suffered a loss as a result (loss causation)

Reliance presumption: In securities class actions, investors don't need to prove individual reliance on every specific misrepresentation. The "fraud-on-the-market" doctrine presumes that in an efficient market, material misstatements are reflected in the stock price — meaning every investor who bought at the inflated price was affected, whether or not they read the specific filing.

The IMMR Non-Reliance 8-K: A Case Study

Immersion Corporation's September 2025 non-reliance filing is a textbook example of how these disclosures work in practice and why they trigger securities litigation.

On September 8–9, 2025, Immersion Corporation filed an 8-K under Item 4.02 disclosing that its Board of Directors had concluded that financial statements for Q2 FY2024, Q4 FY2024, and Q1 FY2025 should no longer be relied upon. Three separate reporting periods — spanning over a year of the company's financial disclosures — were invalidated in a single filing.

For investors who purchased IMMR shares during the class period of June 10, 2024 through July 30, 2025, this disclosure meant:

  • The financial performance they relied on to value the stock was inaccurate
  • The prices they paid reflected a company that — based on its own subsequent admission — reported unreliable numbers
  • When the restatement became public, the stock price dropped to reflect what the actual (corrected) financial performance implied

This price drop is the harm that the IMMR securities fraud class action seeks to recover on behalf of investors. The IMMR case page provides further details on the class period and eligibility.

What Investors Should Do

If you purchased shares in any company that subsequently filed a non-reliance 8-K (for IMMR or any other stock), take these steps:

  1. Save the 8-K. Download and retain the company's non-reliance filing from the SEC's EDGAR system at sec.gov. This is public information and is the foundational document in any securities fraud case.
  2. Gather your trade records. Pull your brokerage transaction history for that stock, covering the period before and after the filing.
  3. Note the stock price on key dates. Record the stock price before the 8-K filing and after — this price differential reflects your potential recoverable loss per share.
  4. Contact a securities attorney promptly. The PSLRA's 60-day lead plaintiff window means deadlines can arrive quickly after a class action is filed.