Insider buying is public information
Insider trades reported on Form 4 are public and must be filed within two business days of the transaction. That makes them a legal data source for research and idea generation.
Use clusters, not single trades
A single executive purchase may be interesting, but several insiders buying together suggests a higher level of shared conviction. ClusterSignal highlights these patterns to reduce noise.
Always do your own research
Form 4 is one input, not a recommendation. Use it alongside earnings calendars, valuation checks, and risk management. This is not financial advice.