The Article wrote:Insider trades (those by a company officer, director, or owner of 10 percent or more of a class of the company's securities) must be reported to the Securities and Exchange Commission by the 10th of the month following the month of the trade. InsiderInsights.com regularly posts news of such trades.
From that, I think insider trading (as defined there) itself is not illegal. What's illegal is if those on the inside use their inside information to their benefit. So if I'm a CEO of a company and we're about to post a huge loss, if I then dump a bunch of our stock before the public knows about it, then that's illegal. But if I sell some of our stock and there's nothing major going on, then that's not illegal.