Insider trades
What officers, directors and 10% owners bought and sold in the open market, from their SEC Form 4 filings. Buying is the rarer signal and the louder one; several insiders buying together, louder still. Open any company for its quarterly history.
Read them beside fund managers’ 13Fs and House members’ trades on Smart money →
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Cluster buys
Companies where two or more insiders bought shares in the open market in this window. Joint filers count once, and purchases in an offering or a private placement are left out.