Insider trading

Each insider carries a score from 0 to 100, set by their single best-timed trade. Higher means better timed in the insider's favor.

The score is built from four parts. The largest is how unusual the move was for that particular stock, measured in standard deviations of its own history. That matters because a twelve percent move in a steady name like Lockheed Martin is a far rarer event than a twenty-seven percent move in a volatile one like Palantir, and the score treats it that way, so a number means the same thing from one company to the next. The other three parts are whether the direction favored the insider, the dollar size of the trade, and how senior the insider was, with a chief executive or chief financial officer weighted above a director above a passive large holder.

Open any row to see the role, the dollar value, the exact one-month window, the market-adjusted move, and the standardized z-score behind it.

Two things make this data read differently. First, the law requires amounts to be disclosed only as ranges, such as 1,001 to 15,000 dollars, never as exact figures, so every trade shows a low and a high rather than a single number. Second, disclosure lags. A member can report a trade weeks after making it, and a long gap between the transaction date and the disclosure date is itself worth noting.

Each row shows the member, the company and its ticker, whether the trade was a purchase or a sale, the dollar range, both dates, and any committee whose jurisdiction touches the company. This dataset is currently a seed sample and is being expanded to the full House and Senate disclosure record.