Tool guide
Insider Activity
Form 4 insider buys and sells: see when the people who know the company best are putting their own money to work.
Open the tool →What it is
Form 4 insider buys and sells: see when the people who know the company best are putting their own money to work.
What it shows
SEC Form 4 filings — officers, directors, and 10%+ owners trading their own stock (updates roughly every 30 minutes).
- Latest Filings — every filing $25K+ on non-penny names in the last 90 days, buys and sells both, each row tagged with its side. Use the Buys / Sells chips to narrow it.
- Cluster Buys — multiple insiders at the same company buying together; the "# Insiders" count is the conviction signal. This feed is buy-side only.
How to use insider activity
Roughly nine filings in ten are sales, and most of those are routine — scheduled 10b5-1 plans, option exercises, shares sold to cover the tax bill on a vest. A single executive selling tells you very little. Buying is the rarer side and the one worth reading, which is why the cluster feed exists.
Filter by dollar size, spot cluster buys where several insiders buy the same name, and treat it as corroboration alongside unusual flow rather than a signal on its own. A small purchase with a tiny ownership change is routine; a large ownership increase, especially at a higher share price, signals real conviction.
Watch the transaction code in the Type column too — "S - Sale+OE" is a sale that followed an option exercise, which is mechanical, not a view on the stock.
Concepts used here
- Institutional accumulationMultiple flows at the same strike over several days — position building, not noise.
