Great point - actually, what the article leaves out is that investors are always competing with vast holdings held by insiders who by definition have insider in

Great point - actually, what the article leaves out is that investors are always competing with vast holdings held by insiders who by definition have insider information; and most of their trades based on that insider information are perfectly legal (inevitably.) Such as selling their positions. Passing on insider information other than to the public at large is what's legislated against.