Its always only that simple afterwards:

'Venture-capital firm Kleiner Perkins Caufield & Byers, which invested less than $15 million in Google in 1999, has handed out 5.4 million Google shares -- valued at $932 million at Tuesday's close -- to investors in one of its funds, according to people familiar with the matter.

Also, Google's co-founders and chief executive disclosed plans to sell a total of 16.6 million shares, valued at $2.8 billion, over the next 18 months. Two vice presidents reported selling a combined 55,000 shares, for roughly $9.5 million."

Correct me if my calculation is wrong but this makes a handy 99% yearly return rate. With such a "swing" of 15 million indeed a very good investment opportunity...