

Image by Japanexpertna.se on Flickr, CC BY-SA 2.0
National Association of Secretaries of State - State-by-state filings of corporations
Library of Congress Business Collection - Large archive of information on American companies
US Securities and Exchange Commission EDGAR Database - Large, comprehensive database of company financial filings
- 10K (annual reports; 10KSB for Small Business Public Companies): This is the financial statement most people are looking for and is an annual filing. Pay particular attention to Item 1, the business description, Item 7, the Management Discussion and Analysis, and the Financial Footnotes. The annual report to shareholders is a separate document but can be "incorporated by reference" into the 10K in some cases.
- 10Q: This is a quarterly report that is primarily used as an update on the financial information though it can contain other information that is new/important.
- S-1: This filing is the registration statement when a private company goes public often seen as IPO.
- 8K: These filings can vary but can be where announcements of mergers, acquisitions, and other material changes can be made.