Ken Griffin acquired 483 Thousand Zoetis- Class A shares worth $78.5 Million. That's 0.12% of their equity portfolio (190th largest holding). The first Zoetis- Class A trade was made in Q2 2013. Since then Ken Griffin bought shares 43 more times and sold shares on 33 occasions. The stake costed the investor $31.1 Million, netting the investor a gain of 153% so far.