Insider Trading When someone with access to material, nonpublic information about a company or its stock or security instruments uses that information in the sale or purchase of the security. Home Resources Startup Law Dictionary Insider Trading Return to Glossary Need legal help? Schedule a free consultation with a world-class startup attorney on LawTrades. LET'S CHAT Roy G. Business Attorney Heather N. Business Attorney Jared S. Business Attorney Tell us about your project We'll connect you with a vetted attorney in just a few minutes. Trusted by top companies like :