This adresses the problem partially. The insider often doesn't trade the stocks of their corporation, instead they tip others to trade it. There are networks of C-execs constantly tipping each other.
I feel like religiously throw those guys in prison when you catch them and ban them for life from trading paper, working in the finance industry, or serving as a corporate officer is what you aught to to.
Much better than the current, the stockholders will pay protection to the Feds to keep corporate offices from going to prison or facing any other repercussions.
Much better than the current, the stockholders will pay protection to the Feds to keep corporate offices from going to prison or facing any other repercussions.