I think insider trading should be a private affair: if you work at a company and steal from the company by inside trading on some announcement, well then they s

I think insider trading should be a private affair: if you work at a company and steal from the company by inside trading on some announcement, well then they should probably fire you (and maybe file a civil suit). But there's certainly arguments to be made that insider trading is very good for the markets as it allows new information to get incorporated into the price very quickly.