Insider trading

We track *legal* insider trading — open-market purchases and sales filed by corporate officers, directors, and holders of more than 10% of a company's shares. These trades are publicly disclosed on SEC Form 4 within two business days of execution and are entirely separate from the illegal use of material non-public information.

Form 4 is the 'Statement of Changes in Beneficial Ownership' filed by an insider any time they buy, sell, or are granted shares of their own company. Each filing breaks down the trade into the transaction code, share count, price, and post-trade ownership — which is the raw data feeding every chart on this page.

Insiders see internal sales pipelines, hiring pace, customer churn, and product readiness long before the market does. When an officer or director opens their own wallet to buy on the open market — without the asymmetric incentives of options or grants — academic studies have repeatedly found those purchases earn statistically significant excess returns over the following 6–12 months.

We poll EDGAR every few minutes during market hours. Form 4 filings typically appear on OpenStocks within 5–15 minutes of being accepted by the SEC, which is the same speed as Bloomberg-grade terminals.

Not necessarily. A large fraction of reported sales are pre-scheduled 10b5-1 plan transactions, option exercises, or tax-driven liquidations that carry little signal. We surface the transaction code (P, S, M, A, F…) on every row so you can filter the noise and focus on discretionary open-market sales.

100% of it comes from the SEC's EDGAR system — the official, free, real-time filing repository for U.S. public companies. Every row links back to the original filing so you can audit the source.