Events and rules
What Is an 8-K Filing?
Form 8-K is the filing a US public company uses to announce a material event between its quarterly reports. It is due within four business days of the event. Because it covers acquisitions, executive departures, financings, and going-concern warnings, it is one of the most market-moving filings on EDGAR.
The items that move stocks
- Item 1.01: a material agreement, often a merger or a big contract.
- Item 2.02: results of operations, the earnings release.
- Item 3.01: a notice of delisting or failure to meet a listing standard.
- Item 5.02: a director or officer leaving or arriving.
- Item 8.01: other events, a catch-all companies use for anything from FDA news to a financing.
How to read one fast
Start with the item numbers on the cover; they tell you what kind of event it is before you read a word. Then read the first paragraph of each item. Exhibits (press releases, agreements) are attached at the end. An 8-K filed after the market closes is usually the company controlling timing.
InsiderWatch watches the EDGAR feed continuously. Company announcements that reach a press wire, an agency release, or an 8-K go through the same triage and are alerted only when the event is specific to a stock and likely to move it.
The full map of items
Items are grouped by section number, and the section tells you the kind of event before you read the text:
- Section 1, business and operations: 1.01 entry into a material agreement, 1.02 termination of one, 1.03 bankruptcy or receivership, 1.05 a material cybersecurity incident.
- Section 2, financial: 2.01 completion of an acquisition or disposition, 2.02 results of operations, 2.03 creation of a direct financial obligation such as a new loan or notes, 2.04 events that accelerate an obligation, 2.05 exit or restructuring costs, 2.06 material impairments.
- Section 3, securities: 3.01 delisting notice or failure to satisfy a listing rule, 3.02 unregistered sales of equity, 3.03 material modification of shareholder rights.
- Section 4, accountants: 4.01 a change of auditor, 4.02 non-reliance on previously issued financial statements, which is the restatement warning.
- Section 5, governance: 5.01 change in control, 5.02 departure or appointment of directors or officers and compensation changes, 5.03 amendments to articles or bylaws, 5.07 results of a shareholder vote.
- Section 7, Regulation FD: 7.01, used to publish investor presentations and other selective-disclosure material.
- Section 8, other events: 8.01, the catch-all.
- Section 9: 9.01, the exhibits, where the press release or agreement is attached.
Filed versus furnished
Items 2.02 and 7.01 are "furnished" rather than "filed". The distinction is legal: furnished material is not subject to the same liability as a filed document and is not automatically incorporated into the company's registration statements. For a reader it means earnings releases and investor decks arrive under those items with slightly softer legal weight, while a material agreement under 1.01 or a delisting notice under 3.01 is a filed statement the company stands behind.
Combinations that carry meaning
- 1.01 with 3.02: a material agreement plus an unregistered stock sale on the same form is usually a private placement or a strategic investment, a financing negotiated with one party rather than a market offering. It reads differently from a public offering.
- 2.02 with 7.01: earnings plus a presentation, the standard quarterly package.
- 5.02 alone, filed after the close, naming a chief executive or chief financial officer leaving "effective immediately": one of the most reliably negative filings on EDGAR when there is no successor named.
- 3.01 followed weeks later by 5.03 announcing a reverse split: a company fixing a minimum-price deficiency.
- 4.02: a restatement, which almost always comes with a stock reaction and often precedes 5.02 departures.
- 1.05: a cybersecurity incident the company has judged material, due four business days after that judgment rather than after the incident itself.
Timing and how the market reads it
The four-business-day clock runs from the event, and companies use most of it when the news is bad and very little of it when the news is good. Good news arrives with a press release before the open; bad news arrives as an 8-K filed at 4:05 pm on a Friday. Neither pattern is a rule, but both are common enough to be worth knowing. The exhibit is often more informative than the item text, because the item text is written by lawyers and the exhibit is the actual agreement, the actual letter from the exchange, or the actual press release.
InsiderWatch reads the EDGAR feed continuously and grades 8-K-sourced events the same way as wire stories: the item numbers, the exhibit, and the size of the event relative to the company decide whether it is alerted.
Common questions
- How soon after an event must an 8-K be filed?
- Within four business days of the triggering event. Some items, such as Regulation FD disclosures, must be filed faster.
- Is an 8-K the same as a press release?
- No. A press release is voluntary communication. An 8-K is a legal filing; the press release is often attached to it as an exhibit.
- What is Item 8.01 used for?
- Anything the company chooses to disclose that no other item requires: a contract win, a clinical result, a dividend, a litigation update. Because it is voluntary, an 8.01 with a press release attached is often the company's way of putting news on the record.
- Does an 8-K have to be filed for a press release?
- Only when the press release discloses something an item requires, or when the company chooses to furnish it under 7.01 or 8.01. Many press releases are never attached to an 8-K.
- Where do foreign companies report these events?
- Foreign private issuers file Form 6-K instead, which has no fixed list of items and simply furnishes whatever the company published at home.
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Published 2026-08-22. InsiderWatch is an informational service based on publicly available information only. This page is general information, not legal, financial, investment, or tax advice.