Ken Griffin acquired 429 Thousand Astrazeneca plc - ADR shares worth $28.5 Million. That's 0.03% of their equity portfolio (665th largest holding). The first Astrazeneca plc - ADR trade was made in Q2 2013. Since then Ken Griffin bought shares 50 more times and sold shares on 49 occasions. The stake costed the investor $19.4 Million, netting the investor a gain of 47% so far.