The insider ownership percentage is the key indicator, can be used by investors, to measure the outlook of senior management has on their company. Insider ownership for the FB is 1.43%. Institutional ownership refers to the ownership stake in a company that is held by large financial organizations, pension funds or endowments. The Institutional ownership for the FB is 75.80%. Insider trading is the buying or selling of any publicly traded company's stock and this can be done by someone who has non-public, material information about that FB. Insider trading can be illegal or legal depending on when the insider makes the trade. It is illegal when the material information is still non-public. The insider transactions of the company (6-month change in insider ownerships) for the Facebook Inc (NASDAQ:FB) is -5.12%.