Ken Griffin acquired 25.7 Thousand Amerisource Bergen shares worth $4.63 Million. That's 0.00% of their equity portfolio (1636th largest holding). The first Amerisource Bergen trade was made in Q2 2013. Since then Ken Griffin bought shares 59 more times and sold shares on 52 occasions. The stake costed the investor $2.87 Million, netting the investor a gain of 61% so far.