How to read a 10-K in 15 minutes

The glossy annual report is marketing. The 10-K is the regulatory filing behind it — the one submitted to the SEC, audited, and standardized so the same numbered items appear in every company's filing. That last part is the gift: once you know that Item 1 is always the business description and Item 7 is always management's own discussion, you can jump straight to what matters instead of reading front to back.

It's also more honest, by law. The risk-factors section exists because companies can be held liable for failing to disclose what could go wrong — so it's often the most candid page a company publishes all year. You can pull any company's 10-K for free from the SEC's EDGAR database.

1. Item 1 — Business (~3 min). How does the company actually make money? If you can't explain the business in a sentence after reading this, that's a finding in itself. Note the segments, the main products, and who the customers are.
2. Item 1A — Risk Factors (~3 min). Skim, don't read every word — most are generic legal cover. Hunt for the specific ones: a single customer that is a large share of revenue, a key patent expiring, heavy reliance on one supplier or one country. Compare against last year's 10-K; a newly added risk is management telling you something changed.
3. Item 7 — Management's Discussion & Analysis (~4 min). Management explaining its own results in plain English — the single highest-value section. Read how they describe a good year and, more tellingly, a bad one. Candor here is a quality signal; spin and blame-shifting is a red flag.
4. Item 8 — Financial Statements (~3 min). The income statement, the balance sheet, and the cash-flow statement. On a first pass, check that revenue and earnings are growing, that the returns on capital are healthy, and that debt is manageable. A decade of these is worth more than any single year.
5. The Notes to the statements (~1 min skim). This is where the real story often hides: debt maturity schedules, stock-based compensation, segment breakdowns, and "off-balance-sheet" arrangements. You won't read them all in fifteen minutes — but note whether anything looks unusually large.
6. Item 3 — Legal Proceedings (~1 min). A quick check for lawsuits or regulatory actions large enough to matter. Most are routine; the occasional material one is worth catching before you buy.

Properties (Item 2), the bulk of the boilerplate risk factors, executive-compensation tables on a first pass, and most of the exhibits. They matter for a deep dive, not for deciding whether a company earns one. The fifteen-minute pass is a filter: it tells you whether to spend the next two hours here or move on.

• A restatement of prior results — the company is correcting numbers it previously reported. Always worth understanding why.
• "Going concern" language from the auditor — a formal doubt about the company's ability to keep operating.
• A rising share count year after year — earnings per share can climb while the pie is quietly being sliced thinner.
• Heavy reliance on "adjusted" earnings that strip out costs which keep recurring. Trust the audited GAAP numbers over management's preferred version.

None of these is automatically disqualifying — each is a question the rest of your research should answer. But catching them in the first fifteen minutes tells you where to dig.