Where the real, unfiltered information lives
Press releases and headlines are written to persuade. SEC filings are written under legal obligation, which makes them one of the most honest sources of information an investor has. Public companies in the United States must disclose material facts to the Securities and Exchange Commission on standardized forms, all freely available through the SEC's EDGAR database. Learning to navigate a handful of these filings will tell you more than a month of financial news.
The 10-K is a company's comprehensive annual report. It is long, but a few sections repay close reading. Item 1 (Business) describes how the company operates, its segments, and its competition. Item 1A (Risk Factors) is a candid list of everything that could go wrong — required by law and often revealing. Management's Discussion and Analysis (MD&A) is where leadership explains the results in their own words, including trends and uncertainties. And the audited financial statements and their footnotes contain the detail that summary numbers gloss over. If you read only one document about a company, read its latest 10-K.
The 10-Q is a shorter, unaudited quarterly filing. It updates the financial statements and MD&A between annual reports, letting you track how the story is evolving in near real time. Comparing several consecutive 10-Qs reveals whether growth is accelerating, margins are holding, and the balance sheet is strengthening or deteriorating across the year.
When something important happens between scheduled reports — an acquisition, an executive departure, a major contract, a bankruptcy, a change in auditor — the company files an 8-K to disclose it promptly. Think of 8-Ks as the official, on-the-record version of company news, without the spin of a press release. Scanning recent 8-Ks is a fast way to catch up on what has actually changed.
Filed ahead of the annual shareholder meeting, the proxy statement covers how the company is governed: board members and their independence, executive compensation and how it is tied to performance, and matters up for shareholder vote. It is the best window into whether management's incentives are aligned with shareholders — an underrated driver of long-term returns.
Corporate insiders — officers, directors, and large shareholders — must report their purchases and sales of company stock on Form 4, usually within two business days. These filings power the “insider trades” data you see on research platforms. The logic is straightforward: insiders know their business better than anyone, so their trading can be informative.
EDGAR is comprehensive but not exactly friendly to read. QuantStrike pulls SEC filings and Form 4 insider transactions directly from the source and presents them alongside the financial statements, the QS Score, and AI-generated summaries — so you get the substance of the filings without scrolling through hundreds of pages. Pair this with our guide on how to analyze a stock to put it all into practice.
Disclaimer: This article is for informational and educational purposes only and is not financial advice or a recommendation to buy or sell any security. Insider-trading data discussed here refers to lawful, publicly disclosed transactions reported to the SEC. Always do your own research.