8-K Item Codes Explained: What Each Triggering Event Means

What is an 8-K item code?

A Form 8-K is a current report. Companies file it to announce material events between their quarterly and annual reports, and every 8-K is organized into numbered items that say what kind of event it is. The number comes first and the text second, so a reader who knows the codes can sort a day's filings in seconds: 2.02 is earnings, 5.02 is a leadership change, 4.01 is a new auditor.

How fast are 8-Ks filed?

For most items the deadline is four business days after the event. That makes the 8-K the fastest official record of what happened at a company, and the reason it is worth watching closely.

Which items are most common?

SignalX counted 15,075 8-K filings in the 13 weeks to October 2, 2026. Because one 8-K can carry several items, the shares below add up to more than 100%.

Every 8-K item, by section

The items are grouped into nine sections. Section 6 applies only to asset-backed securities, so most investors never see it. Highlighted items are the ones most likely to change how you think about a company.

The items that move stocks

Item 2.02: results of operations

Earnings. The 8-K itself is short, and the substance is in the press release attached as Exhibit 99.1. It almost always arrives before the 10-Q, which makes it the first official look at a quarter.

Item 5.02: directors and officers

Departures, appointments and changes to executive pay. A planned succession is routine. A CEO or CFO leaving with immediate effect, especially without a successor named, is one of the most important 8-Ks a company can file.

Items 1.01 and 2.01: agreements and completed deals

Item 1.01 covers material contracts such as credit facilities, supply agreements and merger agreements. Item 2.01 confirms that an acquisition or sale of assets has closed. Read them together to follow a deal from signing to completion.

Items 4.01, 4.02, 3.01 and 1.03: red flags

An auditor change, a warning that past financial statements can no longer be relied on, a notice from the exchange and a bankruptcy filing are all rare and all serious. They get a guide of their own: 8-K red flags and what to check next.

Items that are usually routine

Items 7.01 and 8.01 together appear on about half of all 8-Ks. They are often investor presentations, conference appearances or voluntary updates, so the item number alone says little. Item 5.07 reports the results of a shareholder vote, and Item 3.02 an unregistered share sale, both of which only matter in context. The way to judge them is the exhibit.

Don't skip Item 9.01 exhibits

Item 9.01 lists the exhibits attached to the 8-K, and that is often where the real information lives: the earnings release (Exhibit 99.1), the merger agreement (Exhibit 2.1), a new credit agreement (Exhibit 10.1) or the former auditor's letter after an auditor change (Exhibit 16.1). SignalX reads the attached press releases along with the item text when it writes an 8-K summary.