Insider Alpha

Filings worth a closer look.

Research signals from unusual SEC insider purchases.

Insider Alpha is a set of research candidates identified from public SEC Form 4 filings using transaction characteristics, insider history, ownership changes, and other documented factors. These are transactions surfaced by the research model for further investigation.

Each one sets out what was reported, who reported it, which factors the model observed, and what could undermine it — so the evidence can be weighed rather than taken on trust.

InsiderScanner identifies unusual insider purchases for research. Ratings, scenarios and historical statistics are model outputs, not investment recommendations.

No open research cases right now.

Nothing in the recent filings cleared the model's bar. That is a normal and frequent outcome — most insider purchases are unremarkable — not an error or missing data.

The market-wide feed keeps running regardless: browse every reported transaction →

Evidence, not instructions. A research case describes reported activity and the factors observed around it. It is not a recommendation, a prediction, or a position to take. See the methodology for how each factor is defined.
01 / Activity ledger

Insider filings

Every filing the model has scored, with the evidence it observed at the time and the written reasoning behind the grade. Public SEC Form 4 data, most recent first.

What the last 30 days were made of 30 scored filings since 2026-08-11

Model rating

A+ 2 7%
A 9 30%
B+ 0 0%
B 19 63%

Conviction

High 8 27%
Medium 17 57%
Low 5 17%

Rating and conviction are research classifications of how strong the observed evidence was — model outputs, not recommendations and not a measure of what any position returned. These are counts of what the model published in this window, not a performance record and not a forecast; see Performance for resolved outcomes.

No new research cases since 2026-09-03 — the model didn't find anything that cleared the bar this week. Shown honestly empty rather than backfilled with older rows — check the Last 30 Days or Available History tabs for more history.
Preview

You are seeing the 5 most recent scored filings.

The rest of the scored ledger, and the research case behind each one — its score, the factors the model observed, the entry reference and what could undermine it — open up as soon as you have an account, at no cost. The raw filings feed, the market insights and every company page are free and stay free.