Skip to content

About InsiderAlpha

InsiderAlpha reads Form 4, Form 144 and 8-K filings from SEC EDGAR through the trading day and evening, and keeps every primary filing. Each qualifying Form 4 purchase gets an Alpha Score, worked out the same way for every filing and never edited by hand. How the score is built is our own and not published. Those scores rank the daily trading plan, which is rebuilt as new filings arrive during each trading day.

Who publishes it

InsiderAlpha is published by Kausol, a sole proprietorship (eenmanszaak) based in Amsterdam, the Netherlands. The registration and VAT numbers are in the footer of every page and in the terms.

What InsiderAlpha is not

InsiderAlpha is not an investment adviser, broker, or fiduciary. Nothing on this site is a recommendation to buy or sell any security. See the full disclaimer.

Data and methodology

Filing data comes straight from SEC EDGAR, within its published fair-access rules. Prices come from licensed market data providers. Amended and duplicate filings are grouped, so the same purchase is not counted twice; most raw submissions turn out to be duplicates. Insider profiles are filled in by fixed rules from SEC records and, for some well-known insiders, Wikipedia. Scoring is automated, and nobody adjusts a score by hand for any company or insider.

Editorial standards

Every claim in an educational article rests on SEC filing mechanics or cited research. Article dates are the real publication and revision dates, and corrections are made in the article itself, with the revision date moved. Pages generated from the filing database carry no editorial opinion.

Specifically, for every guide in the Learn library:

  • Every rule, deadline and threshold is cited inline to the SEC release, form or filing it comes from, at the sentence that makes the claim. Worked examples name the EDGAR accession number so you can open the same document we read.
  • Figures drawn from our own filing database are labeled as such and resolved from one source, so the same number cannot appear twice on the site with two values.
  • Nothing is published on the strength of a summary. Every rule in a guide is checked against the SEC document it comes from before it ships, and a claim we cannot point at a filing or a rule release for does not go in.
  • The published and updated dates on an article are the real dates it shipped and last changed. We do not backdate an article to make the library look older than it is.
  • Corrections are made in place, with the revision date moved and the change described if it altered the meaning. Send one through the contact form.

Who writes them

The Learn library is written and maintained by InsiderAlpha, and Kausol stands behind it: corrections go to the contact form and are made in place.

Contact

Questions or corrections: use the contact form.