How to Read an SEC 8-K Filing

When a major company announces earnings, fires its CEO, or closes an acquisition, it has four business days to file an 8-K with the SEC. These filings are publicly available, free, and often contain information that moves stock prices — yet most investors never read them.

If you've ever wondered how professional investors and analysts stay on top of breaking corporate news, the 8-K is usually the starting point. Here's a practical guide to reading them without getting lost in legalese.

What an 8-K Is

An 8-K (sometimes called a "current report") is a real-time disclosure. Unlike the 10-K (annual report) or 10-Q (quarterly report), which have fixed filing schedules, an 8-K is triggered by specific events. The SEC defines 32 distinct triggering events grouped into nine categories, but a handful of items account for the majority of filings you'll care about:

Item 1.01 — Entry into a material definitive agreement (acquisitions, major contracts)
Item 1.02 — Termination of a material definitive agreement
Item 2.01 — Completion of acquisition or disposition of assets
Item 2.02 — Results of operations and financial condition (earnings releases)
Item 4.01 — Changes in registrant's certifying accountant (auditor changes — a warning sign)
Item 5.02 — Departure or appointment of directors and officers (executive changes)
Item 7.01 — Regulation FD disclosure (investor presentations, conference transcripts)
Item 8.01 — Other events the company considers material

The item number is the most important field. It tells you instantly what kind of event triggered the filing before you read a single word of the body.

Where to Find 8-Ks

Every 8-K is available for free on EDGAR (the SEC's Electronic Data Gathering, Analysis, and Retrieval system). You can search by company name or CIK number at sec.gov/cgi-bin/browse-edgar. Most financial data providers — Bloomberg, Refinitiv, and many retail platforms — also surface 8-Ks in real time, often within minutes of filing.

EDGAR is authoritative but can be clunky to navigate. The filing index page lists every document in the submission: the primary document (usually named something like 8k.htm or ex99-1.htm for press releases) and any exhibits attached.

The Anatomy of an 8-K

A typical 8-K has three parts:

1. The cover page. Lists the company name, CIK, item numbers being reported, and the date. Skim this first — if it's item 5.02, you know an executive is entering or leaving before you read anything.

2. The body. For each item listed on the cover, there's a brief narrative section. These are often one to three paragraphs of formal prose describing what happened. Executive departure 8-Ks, for example, will state the effective date and whether the departure was voluntary or "by the company."

3. Exhibits. The most valuable information is usually buried here. An earnings 8-K (item 2.02) will attach the full press release as Exhibit 99.1 — this is where you find revenue figures, EPS, and guidance. Item 7.01 Reg FD filings will often attach investor presentations as PDFs.

Reading an Earnings 8-K (Item 2.02)

This is the most common type institutional investors track. When a company reports earnings, it typically files an 8-K on the same day with the press release as an exhibit. Here's what to focus on:

Revenue and EPS vs. consensus — Most press releases lead with whether results beat or missed analyst expectations. This requires knowing the consensus estimate, which you'll need from another source.
Guidance — Did the company raise, lower, or maintain forward guidance? This often matters more than the current quarter results. Look for language like "we are raising our outlook" or "we now expect."
Non-GAAP adjustments — Companies often report "adjusted" EPS that excludes stock-based compensation, restructuring charges, and acquisition costs. GAAP and non-GAAP can differ significantly. The reconciliation table at the bottom of the press release shows exactly what was excluded.
Segment breakdowns — For diversified companies, individual segment revenue trends can be more telling than the consolidated headline.

Red Flags to Watch

Certain 8-K patterns consistently signal trouble before the broader market reacts:

Auditor changes (Item 4.01) — Especially when the outgoing auditor resigned rather than was dismissed. PCAOB requires auditors to explain their departure, and sometimes the reasoning is alarming.
Late filings — If a company misses its 8-K deadline, it's often because something complex is still being resolved.
Item 8.01 "other events" — A catch-all that companies sometimes use to disclose material information they hope gets less scrutiny. Read these.
Multiple items in one filing — An earnings release filed alongside an executive departure or accounting change is worth a closer look at what's happening inside the company.
Guidance withdrawn — Companies rarely withdraw guidance unless the outlook has become too uncertain to quantify. The language is often buried: "We are suspending our full-year guidance."

Speed Matters

8-Ks move stocks. An earnings release that hits EDGAR at 4:05 PM Eastern often causes significant after-hours price moves before most retail investors have even opened the document. Professional investors and algorithmic trading systems monitor EDGAR feeds in real time.

The practical takeaway: if you care about a company, set up automated signals for their 8-K filings. Read the item number first, then decide whether to dig into the exhibits. Most 8-Ks aren't material — but when they are, you want to know before the next morning's open.

The SEC makes all this information available to anyone, for free, within minutes of filing. The edge isn't exclusive access — it's knowing what to look for and having a system that surfaces the right signals at the right time.