Why would he sell now? He keeps buying and many of his recent purchases have been higher than the $10 level. Now why would he suddenly decide to sell at a much lower price? He certainly isn't desperate for cash to support his lifestyle. He has plenty of that. OPK is his baby and he wants it to succeed. He will make it succeed and he will also make plenty of money by buying more and more shares, especially on a dip. It would be downright stupid for him to suddenly unload a lot of shares and plunge the share price even more and one thing Dr. Frost isn't, is stupid.