Email alerts: one email the morning after a filing you care about

GuideNumbers as of 2026-10-14

Get one email the morning after a filing you care about lands. The alerts check the new filings and clusters after the daily refresh and only write to you when something you asked for actually happened — no daily "nothing to report".

What you can watch

Companies. Type a ticker and you are emailed when an insider buys it on the open market.
People. Part of a name is enough — "buffett", "musk", "ackman" — matched against the insider named on each buy, across every company.
Market-wide signals. Cluster buys (three or more insiders, score 55+), any CEO buying, any CFO buying — historically the strongest single-insider signal. These fire across every company, not just your watchlist.
A floor. Only bother me if it is big: $50k, $100k, $250k or $1M and up. Applies to your watchlist and the CEO/CFO signals.

When it arrives

The SEC publishes Form 4 filings through about 10 pm Eastern. The site refreshes early the next morning, and the alert run happens after the deploy so the email links to the live page with today's filings and clusters on it. One email per morning, covering everything that matched.

Programmatic instead?

The same buys, sells and clusters are available as JSON through the members API, so a script can do what the email does, on your schedule, with your own rules.

Included in the $29/month membership

All seven tools, the full two-year feed, the JSON API and email alerts, refreshed every morning. A free quarterly sample of the dataset needs no account.

See plans Free sample

Questions this post answers

How do insider trading email alerts work?

Members pick tickers, insider names and market-wide signals (cluster, CEO, CFO), optionally with a dollar floor. After each morning's refresh, one email is sent listing every new open-market purchase that matched. No matches, no email.

Can I get alerted when a specific person buys?

Yes. Any part of a name works and is matched across every company the person files on.

How soon after the filing does the alert arrive?

The morning after the SEC publishes it. Form 4 filings are public by about 10 pm Eastern; the alert goes out with the next morning's refresh.

Is there a limit on watched tickers?

No practical limit. Add as many tickers and names as you like; the floor keeps the email short.

What does it cost?

Alerts are included in the $29/month membership alongside the seven tools and the API.

Members Alerts page JSON API guide The Filings Browser Cluster buys The Trader Atlas The Backtest engine Seasonal stock patterns that survived an out-of-sample test

Built from SEC EDGAR ownership filings. Only open-market purchases (transaction code P) and sales of $1M or more are counted; grants, option exercises and tax withholding are excluded because they run on schedules set years earlier. Historical description, not a prediction, and not investment advice.