What does it say at the top? "GENERAL FORM FOR REGISTRATION OF SECURITIES Pursuant to Section 12(b) or (g) of The Securities Exchange Act of 1934"
A Form 10 is a registration statement. If a Company files a Form 10, the are registering shares under the Securities Exchange Act of 1934. This is a simple concept, and a fact.
But hey, if you want to believe Investopedia, here is their definition of a Form 10:
Definition of 'SEC Form 10' 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.