Cleaned historical Form 4 data from 2003 onward. Filters, company context, and cluster detection so you can study officer and board-member trading activity and make more informed decisions.

Nugget Prospector surfaces groups of coordinated or concentrated insider purchases and sales reported to the SEC. You can filter by transaction value, number of insiders, time window, market capitalization, sector, and other attributes. Company profiles and source links are provided for further review.

This is a decision-support research tool. It does not generate trading signals or predict future price movement.