Ken Griffin acquired 3.21 Million JPMorgan Chase shares worth $814 Million. That's 0.83% of their equity portfolio (5th largest holding). The investor owns 24.58% of the outstanding JPMorgan Chase stock. The first JPMorgan Chase trade was made in Q2 2013. Since then Ken Griffin bought shares 55 more times and sold shares on 56 occasions. The stake costed the investor $367 Million, netting the investor a gain of 121% so far.