Schedule 13D is an SEC filing that must be submitted to the US Securities and Exchange Commission within 10 days, by anyone who acquires beneficial ownership of more than 5% of any class of publicly traded securities in a public company. A filer must promptly update its Schedule 13D filing to reflect any material change in the facts disclosed, including, among other things, the acquisition or disposition of 1% or more of the class of securities that are the subject of the filing.
13D filings allow the investing public to see who a public company's large shareholders are and, perhaps more importantly, why they have an interest in the company. These filings may be a precursor to hostile takeovers, company breakups, and other "change of control" events.
Schedule 13D consists of seven different sections:
An aggregate database of schedules 13D, 13G, 13F are provided by private service providers such as Edgar, and Capital Activist.