Seth Klarman acquired 21.9M SLM shares worth $696M. It makes up 17.89% of their stock portfolio and is their biggest holding. The investor owns 10.67% of the outstanding SLM stock. The first SLM trade was made in Q1 2007. Since then Seth Klarman bought shares two more times and sold shares on one occasions. The stake costed the investor $328M, netting the investor a gain of 112% so far.