Ken Griffin acquired 625 Thousand Westinghouse Air Brake Technologies shares worth $91.1 Million. That's 0.09% of their equity portfolio (254th largest holding). The first Westinghouse Air Brake Technologies trade was made in Q2 2013. Since then Ken Griffin bought shares 54 more times and sold shares on 43 occasions. The stake costed the investor $63.8 Million, netting the investor a gain of 43% so far.