Ken Griffin's position in Transdigm Group Incorporated is currently worth $162 Million. That's 0.19% of their equity portfolio (109th largest holding). The first Transdigm Group Incorporated trade was made in Q2 2013. Since then Ken Griffin bought shares 47 more times and sold shares on 43 occasions. The stake costed the investor $114 Million, netting the investor a gain of 41% so far.