Ken Griffin's position in Transdigm Group Incorporated is currently worth $27.1 Million. That's 0.04% of their equity portfolio (655th largest holding). The first Transdigm Group Incorporated trade was made in Q2 2013. Since then Ken Griffin bought shares 43 more times and sold shares on 38 occasions. The stake costed the investor $14.2 Million, netting the investor a gain of 91% so far.