Form 3
A document that must be filed with the Securities and Exchange Commission (SEC) by an insider affiliated with a public company's operation or by any investor owning 10% or more of the company's outstanding shares.
Investopedia Commentary
This document must be filed with the SEC no later than 10 days after an insider becomes affiliated with a company, and it must be filed for each company in which a person is an insider, regardless of whether or not the insider has an equity position in the company at that time.
Related Links
Policing The Securities Market: An Overview Of The SEC
Keeping An Eye On The Activities Of Insiders And Institutions
Uncovering Insider Trading
See also: Form 4, Form 5, Insider, Insider Trading, Securities & Exchange Commission - SEC
Form 3