How to Read a 10-K Without Falling Asleep

A company's annual report on Form 10-K can run to well over a hundred pages, and almost nobody reads it front to back. The trick is knowing which handful of sections carry the weight. This is Part 4 of our Read the Numbers series, and it's the one that connects everything we've covered to the actual documents you'll open.

What a 10-K is, and where to get one

The 10-K is the annual report public companies file with the SEC. Its financial statements are audited, according to investor.gov's guide to reading a 10-K, which makes it the most reliable single source on a company. It's free: search the company's name on the SEC's EDGAR database, or look in the investor relations section of the company's own website.

Timing depends on company size. Under the SEC's Form 10-K instructions, large accelerated filers have 60 days after fiscal year-end to file, accelerated filers have 75 days, and all other registrants have 90 days.

The map: the Items that matter

A 10-K is organized into numbered Items, the same in every company's filing. Knowing them lets you jump straight to what you need.

Item 6 appears on the current form as "[Reserved]." It used to hold five years of "selected financial data," so older guides that send you there are out of date; the equivalent detail now comes from the financial statements and MD&A. Items 4 (Mine Safety), 9 and 9B are short and often irrelevant to most readers.

A reading order that works

• Item 1, Business. If you can't explain how the company makes money in two sentences after reading this, stop and re-read it. Investor.gov's guide also recommends starting here.
• Item 1A, Risk Factors. Skim for the risks specific to this company, not the boilerplate every company includes. Watch for concentration: one customer, one supplier, one product, one country.
• Item 7, MD&A. This is where management tells the story and explains why the numbers moved. Read it with the statements next to you.
• Item 8, Financial Statements and the notes. Apply Parts 1 through 3: margins, cash conversion, and balance sheet strength. Then read the notes, where accounting policies, debt terms, and other details sit.
• Items 3 and 9A, if something feels off. Lawsuits and weak internal controls are worth knowing about.

Searches worth running

A 10-K is a text document, so your browser's find function (Ctrl+F or Cmd+F) is a useful tool. A few terms are worth searching for:

• "going concern" appears when there's substantial doubt about whether the company can keep operating.
• "material weakness" points to a failure in internal controls over financial reporting.
• "restatement" or "restated" means previously reported numbers were corrected.
• "customer" near "percent of revenue" shows whether one buyer accounts for a big share of sales.
• "related party" shows deals between the company and its own insiders.

Finding one of these terms isn't automatically a red flag, and not finding them isn't an all-clear. They're prompts to read the surrounding paragraph closely.

10-K, 10-Q, and 8-K: the family

• 10-K: the annual report, with audited financial statements.
• 10-Q: the quarterly report, filed for each of the first three fiscal quarters. Investor.gov notes that its financial statements are unaudited. The SEC's Form 10-Q instructions set the deadline at 40 days after quarter-end for large accelerated and accelerated filers and 45 days for all others. There's no 10-Q for the fourth quarter; the 10-K covers it.
• 8-K: a current report for significant events between periodic filings. Companies also use it to furnish their earnings releases, which we cover in Part 5.

For a quick read on a company, the 10-K is the document to open. For what's changed since, check the latest 10-Q and any recent 8-Ks.

Common questions

How long does it take to read a 10-K?

A full read can take hours, but a focused pass on Business, Risk Factors, MD&A, and the financial statements typically takes much less. The goal isn't to read every page; it's to know what the company does, what could go wrong, and whether the numbers support the story.

Where can I find a company's 10-K for free?

On the SEC's EDGAR database, which is free and requires no account. Search by company name or ticker and filter by filing type 10-K. Most companies also post their filings on the investor relations section of their website.

What's the difference between a 10-K and a 10-Q?

A 10-K is the annual report with audited financial statements. A 10-Q is a shorter quarterly report with unaudited statements, filed for each of the first three quarters of a company's fiscal year.