To those wondering if this is a secondary purchase, the keyword I see here is 'Invests'. It is very different from "Saudi Prince buys $300m worth of Twitter shares".
Buying $300m worth of Twitter stock would be an investment.
In any reasonable scenario, he is purchasing shares of stock in a company on the hopes their value will rise. Doesn't matter who he is purchasing them from, it's still an investment.
In any reasonable scenario, he is purchasing shares of stock in a company on the hopes their value will rise. Doesn't matter who he is purchasing them from, it's still an investment.