There is a rule 10b-105 or something. Executives have to plan and document stock buys and sales before executing them. Intent was to prevent abuse if inside info.
So how effective is it? Not very. The law allows executive to cancel plans Change target buy or sell price. So if they are aware of bad news they can do unplanned sale. Or unplanned buy if anticipated news good.
The laws were created with loopholes in place. The executives don’t even have to reveal what changes they made - the company spokesman issues statement that the law requirement has been met. Laws do favor the well heeled.
What I dont understand is that , by leaving these loopholes open, is the law not giving out a wrong message that this whole share business is not trust worthy, that if someone knows internal information, they can make better money and better choices ..
Why should an ordinary man then put their resources into the share market?