Ken Griffin acquired 10.6 Million Bank Of America Corp. shares worth $343 Million. That's 0.51% of their equity portfolio (13th largest holding). The first Bank Of America Corp. trade was made in Q2 2013. Since then Ken Griffin bought shares 42 more times and sold shares on 36 occasions. The stake costed the investor $280 Million, netting the investor a gain of 22% so far.