Activist investor Carl Icahn made news a few weeks back when he announced, via a tweet, that he had bought a large position in Apple, which is now reported to be about US$1.5 billion worth of Apple stock. Immediately, Apple's stock shot up and has been up ever since. But as an activist investor, Icahn never just buys stock hoping it will go up. He buys stock (and a lot of it) hoping to use his shares and knowledge to influence the direction of a company.
Along those lines, Icahn has now tweeted that he has set up a dinner with Tim Cook in September:
