The title is link-bait at its worst. An honest title would read:<p>Scott Forstall sells 95% of his <i>vested</i> AAPL shares<p>With a subtitle:<p>... because he's in line to get 5x more shares in the future<p>He sold 64,151 shares but by 2016 he will have 250,000 restricted stock units that are vested.
While insider <i>buying</i> is a very strong and clear signal, insider selling happens regularly even at the most successful of companies. Just for reasons of diversification, it's reasonable even for extremely bullish founders or upper management to sell their shares. Buffet was an outlier in his multi-decade practice of keeping over 99% of his wealth in his company's stock.