All companies qualify to register securities on a Form S-1 registration statement. Private companies going public should know about the expansive disclosure required by in registration statements filed with the SEC before making your decision to go public. A registration statement on Form S-1 has two principal parts which require expansive disclosures. Part I of the registration statement could be the prospectus which requires that the business provide certain disclosures about its business operations, financial condition, and management. Part II contains information that doesn&039;t need to be delivered to investors.