Insider transactions (Form 4)
Whale-watcher-style: officers, directors and 10%+ owners' buys and sells. Data via SEC EDGAR.
🐋 Top cluster-buys (90 days, Form 4 Code P)
Ranked by cluster-buy score = log(1 + buy $) × √(unique insider buyers). Cluster = multiple insiders buying the same stock with their own money in the open market. Academic literature: strongest single-stock alpha among free data. Standalone backtest: Sharpe 1.01, CAGR 26%, MaxDD -26% (n=20, monthly rebal). Window: → .
| # | Symbol | Sector | #Buyers | Buy $ | Sell $ | Net Buy $ | Last Buy | Score |
|---|---|---|---|---|---|---|---|---|
Per-symbol —
| Date | Filer | Role | Code | Shares | Price | Value | Holding after |
|---|---|---|---|---|---|---|---|