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Explainer · Kresmion Research

How to Read an 8-K Filing

August 8, 2026 · 6 min read
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An 8-K is the form a US public company files with the Securities and Exchange Commission to disclose a specific material event between its quarterly reports, usually within four business days of the event.

This page covers what triggers an 8-K, how the form is organised into numbered items, which items carry the most information, and how to read the exhibits that are often the real content. It is descriptive throughout.

The 8-K is the unscheduled filing

A US public company files on a calendar. Annual results go in a 10-K, quarterly results in a 10-Q. Those are periodic reports, and they arrive whether or not anything happened.

The 8-K is the other kind. It exists so that a material event does not wait for the next quarter. A chief executive resigns, a company signs a large credit facility, an auditor is dismissed, a business is acquired. Each of those has its own trigger in the rules, and each requires a filing within four business days in most cases.

That deadline is why the 8-K is the first place a change appears in the public record. The narrative version arrives later, in the next 10-Q, already summarised.

The item number tells you what happened before you read a word

Every 8-K is filed under one or more numbered items, grouped into sections. The number is the fastest way to triage a filing.

Section 1 is Registrant's Business and Operations. Item 1.01 is a new material definitive agreement and 1.02 is termination of one. The same section also carries 1.03 bankruptcy or receivership and 1.05 material cybersecurity incidents.

Section 2 is Financial Information. Item 2.01 is the completion of an acquisition or disposition of assets. Item 2.02, results of operations and financial condition, is the one that carries an earnings release. Item 2.03 is the creation of a direct financial obligation, which is where new borrowing appears.

Section 3 covers securities, including unregistered sales and delisting notices. Item 3.01 is a notice of failure to satisfy a listing rule.

Section 4 covers the auditor. Item 4.01 is a change in the certifying accountant and 4.02 is a determination that previously issued financial statements should no longer be relied upon. That second one is a restatement notice.

Section 5 covers corporate governance. Item 5.02 is the departure or appointment of directors and officers, which is where an executive change is disclosed.

Section 7 and Section 8 cover Regulation FD disclosure and other events, which is the catch all. Section 9 lists the exhibits.

An 8-K filed under Item 4.02 and one filed under Item 7.01 are different animals, and the number tells you that before you open the document.

The body is often a pointer, and the exhibit is the content

This is the part that surprises people reading an 8-K for the first time. The primary document is frequently short: a cover page, a one paragraph description, and a reference to an exhibit.

The substance sits in the exhibits listed under Item 9.01. An earnings release filed under Item 2.02 is usually exhibit 99.1, and the actual numbers are in that exhibit rather than in the 8-K body. A credit agreement disclosed under Item 1.01 is usually attached as a 10-series exhibit, and the covenant terms are in the agreement, not the summary.

Reading only the primary document on an 8-K will therefore miss most of what was disclosed. Kresmion ingests 8-K filings from EDGAR, and for a subset of them also pulls the attached exhibit documents, which is what lets the agreement text be read rather than just the cover paragraph.

Furnished is not the same as filed

Two items, 2.02 for results of operations and 7.01 for Regulation FD disclosure, are normally "furnished" rather than "filed".

The distinction has legal weight. Furnished material is not automatically incorporated by reference into a company's registration statements and carries different liability treatment under the Exchange Act. Companies say so explicitly, usually in a sentence noting the information "shall not be deemed filed".

For a reader the practical point is narrower. Furnished and filed material both appear on EDGAR at the same time, and both are public. What differs between them is legal status.

What an 8-K does not tell you

It reports one event. It does not rank that event against anything, it does not say whether the market already knew, and it carries no comparison to the company's peers or its own history. An executive departure disclosed under Item 5.02 reads identically whether it was long planned or sudden.

It is also written by the company. The item number and the deadline are mandated, the framing is not.

Key takeaways

PointWhat to remember
What it isA disclosure of a specific material event between quarterly reports
TimingUsually within four business days of the triggering event
Item numberTells you the category before you read the text
Item 5.02Director and officer departures and appointments
Item 4.02Previously issued financials should no longer be relied upon
Where the content isOften in the exhibits under Item 9.01, not the body
Furnished vs filedItems 2.02 and 7.01 are normally furnished, a legal distinction

Frequently asked questions

How quickly must a company file an 8-K?

For most triggering items the deadline is four business days after the event. A small number of items run on different clocks, and material filed under Regulation FD has its own timing tied to the disclosure it accompanies. The four business day rule is the one that covers the large majority of filings.

Does an 8-K mean something bad happened?

No. The form is a category of disclosure, not a verdict. Item 2.02 carries routine quarterly earnings releases, and Item 1.01 carries ordinary commercial agreements. Some items do describe adverse events, Item 4.02 in particular, but the form itself is neutral and most 8-Ks are unremarkable.

Why is the 8-K so short when the news was significant?

Because the document you opened is usually the cover, and the disclosure is in the exhibit. Check Item 9.01 for the exhibit list. An earnings release is typically exhibit 99.1 and a material agreement is typically in the 10 series. Reading the primary document alone will miss the terms.

Can I use 8-K filings to anticipate a share price move?

No. An 8-K is a record of something that already happened, published after the fact, and it is available to everyone at the same moment. It tells you what was disclosed and when. It does not forecast anything, and this page does not suggest any action based on one.

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Source: SEC Form 8-K and its item structure under the Securities Exchange Act of 1934, as published on sec.gov. Kresmion Research.

Sources
  • · SEC Form 8-K item structure, Securities Exchange Act of 1934, sec.gov
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