Nah he straight out dumped a big chunk of them on the market which lowered prices... This also led to some panic sells as people saw them dropping. This all coincided with people losing confidence from the Polish exchange losing 17.5k bitcoins, MTGox issues and of course the MyBitCoin case...
He probably hasn't dumped them all, so expect a climb, then another drop!
I'm ready to buy if they drop low enough