Ken Griffin acquired 285 Thousand Apellis Pharmaceuticals shares worth $13.7 Million. That's 0.01% of their equity portfolio (973rd largest holding). The first Apellis Pharmaceuticals trade was made in Q2 2018. Since then Ken Griffin bought shares 31 more times and sold shares on 22 occasions. The stake costed the investor $13.1 Million, netting the investor a gain of 4.1% so far.