Learn: Insider Trading Guides for Investors
These guides explain how SEC Form 4 works so you can read insider trades correctly — who has to report, what each transaction code means, and which trades tell you more than others. Each guide cites the official SEC source.
Start with the basics
BasicsWhat is SEC Form 4?Who files it, what it shows and how fast it becomes public.
BasicsForm 4 transaction codes explainedP, S, F, M, A and the rest, and which ones are real buys and sells.
Go further
SignalsWhat is a cluster buy?When several insiders buy the same stock, and what to check.
Rules10b5-1 trading plansPre-scheduled trades, the 2023 rule changes and how to spot them.
Quick answers
Looking for a one-line answer? The insider trading FAQ covers common questions, from “Is insider buying legal?” to “How fast are insider trades reported?”.
Then explore the data
How we research and update these guides: methodology and editorial policy.