Hedge fund mogul David Tepper was one of the investors pressuring the company early in the year and in the second quarter his Appaloosa Management bought an additional 3.5 million shares, raising its stake to 18.8 million.
Take context from the input text and decide on the accurate relationship between 'David Tepper' and 'Appaloosa Management' from the options provided.
Options: owner of, creator, operator, parent organization