High insider buying screen

Insiders sell for many reasons — taxes, a house, diversification — but they buy in the open market for one: they expect the price to rise. A single purchase says little. Several officers and directors buying the same stock within a few months, with their own money, is a stronger signal, and one that research on insider trading has found worth watching.

This screen lists companies worth more than $300 million where at least three different insiders bought shares in the open market over the last three months, as reported in SEC Form 4 filings, with purchases of at least $100,000 in all. It shows how many insiders bought, how many shares and for how much, and orders the companies by the number of buyers, then by the total spent. Awards, option exercises and sales are left out. The screener has no three-month or three-insider filter, so "Open in screener" shows the broader list of every company with an insider purchase in the last twelve months.