Insiders are key officers, members of the board, and others holding at least 10 percent of the outstanding shares.
Insider ownership is usually expressed as the percentage of the firm’s outstanding shares held by insiders. Institutions holding 10 percent of a company’s shares are considered insiders, so the total of insider plus institutional holdings can exceed 100 percent of outstanding shares.
Insider holdings are not considered as available for daily trading, because insiders are restricted as to when and how often they can trade their shares. Float is defined as the shares not held by insiders and thus available for daily trading.
Reuters Profile & Snapshot report lists the number of shares outstanding ...