As I said in the other recent topic here:
"Stock price and market manipulation at it's finest?"
And I think spending this much in one company and bragging about it is fishy. As most smart people would have a diversified share portfolio to spread the risk. Either they are trying to manipulate the market or they have insider information.
No. If you are an investor you want customers to give you money to invest because you beat the market. You can't have a diversified portfolio and still get larger than market level returns.
This is only manipulation if he makes the public comment and then sells the same day or shortly thereafter. He is presumably buying and holding for at least months.