U.S. Securities and Exchange Commission

Central bank or institution Washington, D.C. Founded 1934 www.sec.gov

The SEC regulates US securities markets and runs EDGAR, the free public database of company filings. Every 10-K, 10-Q, proxy and 13F an analyst reads starts there, and the agency also publishes plain-English primers on reading those documents.

What they publish

SEC EDGAR and the SEC's Guides to Reading Filings

Essential

Free access to every public company filing in the US (10-Ks, 10-Qs, 8-Ks, proxies, 13Fs, S-1s), plus the SEC's plain-English guides to reading a 10-K and to financial statements. Primary sources come before anyone's summary of them.

Data Foundational Filings posted in real time; full-text search covers electronic filings since 2001