Marc Faber on the insider selling

Marc Faber : "....I would just like to say about the insider selling, this is also something that I follow and that concerns me. But having said that, and being on the boards of different companies, let me explain to you what happens. Let’s say I am on the board of a company and I get stock options, and I exercise the stock options and then to diversify, I may sell some of the shares I own in that company through my stock option plan, and then I may go and buy other stocks in the market, or make other investments.Because of the proliferation of option plans in the last twenty years or so, there is a natural tendency that when a CEO sells shares, it is reported, but when he invests with hedge fund management, or buys shares in other companies, it is not reported. I think there has been a change in the validity of this statistic. But I agree with you, at the present, the ratio is so huge between selling and buying, that it is a rather negative indicator. Then, when you combine that with other indicators that are also negative, a hugely over-bought market, for instance, I think some caution is in order..."
 in a radio interview with MacAlavany