Stocks where 3 or more distinct company insiders (CEOs, CFOs, directors, 10%+ owners) bought shares within the last 30 days. Academic research (Cohen, Malloy, Pomorski 2012) found cluster buys consistently precede above-market returns. Rare signal – most tickers never fire.
Source: SEC EDGAR Form 4 filings · sec.gov/edgar · Updated daily. See our Methodology.
Cluster buy: 3+ distinct company insiders (CEO, CFO, other named officers, directors, or 10%+ owners) reporting purchases (transaction code P) within a rolling 30-day window.
What's filtered out: option exercises (code M), tax withholdings (code F), gifts (code G), and routine awards (code A). Only direct open-market or private purchases and sales are counted.
Data source: SEC EDGAR Form 4 filings, filed within 2 business days of each transaction. Refreshed every 4 hours.
Insider cluster buys are historically associated with excess returns (Cohen, Malloy, Pomorski 2012) but are not guaranteed predictors. Educational research only – not investment advice. See our risk disclaimer.