Use to see whether a company's executives and directors are buying or selling its stock (e.g. TSLA, NVDA). Returns SEC Form 4 insider trades of the last days=1-365: open-market buys and sales in USD, 10b5-1 plan share, per-insider totals, recent transactions and a signal (CLUSTER_BUYING, NET_BUYING, PLANNED_SELLING, NET_SELLING).