The annual report to shareholders is the principal document used by most public companies to disclose corporate information to their shareholders. It is usually a state-of-the-company report, including an opening letter from the Chief Executive Officer, financial data, results of continuing operations, market segment information, new product plans, subsidiary activities, and research and development activities on future programs.
The Form 10-K, which must be filed with the SEC, typically contains more detailed information about the company’s financial condition than the annual report.
There are many other types of filings with the SEC. These are described in detail on the SEC website.
State required business filings are often available online, but there is no central service available.