A filing with the Securities and Exchange Commission (SEC), also known as the General Form for Registration of Securities. It is used to register a variety of securities for trading on U.S. exchanges. Information on SEC Form 10 includes the type and amount of security being issued, the financial information of the issuer, and any potential conflicts of interest that may exist. In addition to using this form for standard registration of securities, it can be used for accelerated and small business filings.