There's like a week or so delay in them having to report trades, by then you've missed the profit, drive there's up a little, and when they sell it drops the price because they have a bunch of shares.

A week later you find out they sold, maybe make a slight profit if your fast. Then you hear what they bought a week and go give them even more money.

Because all the extra money following them, them selling a company could domino into real world consequences at the company like layoffs.

The system is broken. We're past the point of "gaming" it for scraps. We need a better system or we're fucked.