This guide explains how to read a 10-K, the annual report every U.S. public company files with the SEC, in the order that saves the most time. It covers the five sections that matter for a student research project, a worked example of the reading process, and a checklist.
A 10-K can run past 100 pages. You do not need to read all of it. You need to know which items answer which questions.
How to read a 10-K: the sections that matter
The SEC's own guide, How to Read a 10-K, lists every item in the form. For research, these five carry most of the weight. Read them in this order.
Item 1, Business. What the company sells, to whom, in which segments and countries, and who it competes with. Read this first so the numbers make sense later.
Item 7, Management's Discussion and Analysis (MD&A). Management's explanation of the year's results, what changed and why. This is the narrative you will test against the numbers.
Item 8, Financial Statements and Supplementary Data. The audited income statement, balance sheet, cash flow statement, and the notes. The notes explain how the numbers were built: revenue recognition, debt terms, leases, and segment data.
Item 1A, Risk Factors. The risks the company considers significant. The list is long and partly legal boilerplate, so look for risks that are specific, new since last year, or tied to a single customer, supplier, or country.
Item 7A, Quantitative and Qualitative Disclosures about Market Risk. Exposure to interest rates, currencies, and commodity prices, often with a sensitivity figure. Useful for macro-driven research questions.
Two more items are worth a quick look. Item 3 (Legal Proceedings) flags material lawsuits. Item 5 covers the stock, dividends, and share repurchases. Older guides also mention Item 6, Selected Financial Data; the SEC removed that requirement in 2021, and many recent 10-Ks now show Item 6 as reserved.
Building a valuation from 10-K data is the core of GRF's Research Desk. Apply to the Winter Research Desk.
Worked example: reading a 10-K with one question in mind
The process below uses a hypothetical research question about a hypothetical company. The point is the sequence, not the company.
Question: Is a consumer electronics company becoming less dependent on hardware sales?
Item 1: Note how the company describes its segments. Suppose it reports Hardware and Services, and lists subscriptions, cloud storage, and app store fees under Services.
Item 8, segment note: Pull revenue and operating income by segment for the last three years. Suppose Services grew from 18% to 24% of revenue over that period.
Item 8, segment note again: Check margins. If Services earns a higher operating margin than Hardware, its share of profit is growing faster than its share of revenue, which strengthens the case.
Item 7: Read how management explains Services growth. Note whether it cites more paying users, higher prices, or a reclassification of revenue between segments. A reclassification would weaken the conclusion.
Item 1A: Search for risks tied to Services, such as regulation of app store fees. A specific, new risk here is a counterargument your paper must address.
After about two hours, the student has a three-year data series, management's explanation, and a stated risk. That is enough for a clear thesis and a counterargument, which is the core of most strong student finance papers.
How to find a company's 10-K
Go to SEC EDGAR, search the company name or ticker, and filter for form type 10-K. Filings are free. Most companies also link their 10-K from the investor relations section of their website. Use the HTML version on EDGAR, since it lets you search the text with Ctrl+F or Cmd+F.
Search terms that save time
"segment" finds the segment note with revenue and operating income by business line.
"customers accounted for" finds customer concentration disclosures.
"remaining performance obligations" finds contracted future revenue, useful for software and subscription businesses.
"maturities" finds the debt repayment schedule.
"repurchase" finds buyback activity.
"critical accounting" finds the estimates management considers most judgment-heavy.
Common mistakes students make
Reading cover to cover. Start from a question and read the items that answer it.
Quoting MD&A as evidence. MD&A is management's argument; the statements and notes are the evidence.
Ignoring the notes. Most of the useful detail, including segment data, sits in the notes to the financial statements.
Using one year. Compare at least three years, which the statements usually show side by side.
Treating every risk factor as equal. Focus on risks that are specific to the company and new since the prior filing.
Citing "the 10-K" without the year and item. Cite the fiscal year, the item, and the page or note number.
10-K vs. 10-Q vs. annual report
The 10-K is the annual SEC filing, with audited financial statements. The 10-Q is the quarterly filing, filed for the first three quarters of the fiscal year, with financial statements that are reviewed but not fully audited. The glossy "annual report to shareholders" is a separate document some companies publish; it often includes the 10-K but adds marketing material. For research, cite the 10-K.
How long does it take to read a 10-K?
Reading the five key items with one question in mind takes two to four hours for a first-time reader. Reading the whole filing takes far longer and is rarely necessary for a student project.
Can high school students use 10-K data in research?
Yes. 10-K data is public, free, audited, and widely cited, which makes it one of the strongest sources available to a student. Pair it with market data, such as share prices, if your question involves returns. Our guide to finding data for research projects covers other free sources.
10-K reading checklist
Wrote down one research question before opening the filing
Read Item 1 to understand segments and competitors
Pulled three years of figures from Item 8 and its notes
Compared management's explanation in Item 7 with the numbers
Listed the specific, new risks from Item 1A
Checked Item 7A if the question involves rates, currencies, or commodities
Recorded fiscal year, item, and page for every figure cited
Next step
GRF's Winter Research Desk is a six-week, live finance research program with five seats. Each Fellow builds a valuation model from company filings and writes a 2,000 to 2,500-word research report, with written feedback on drafts from Alex Dryden, CFA, a former Senior Economist at J.P. Morgan. Applications close November 13, 2026. Apply to the Research Desk.