Ken Griffin acquired 1.05M Mirum Pharmaceuticals shares worth $113M. That's 0.07% of their equity portfolio (321st largest holding). The investor owns 2.10% of the outstanding Mirum Pharmaceuticals stock. The first Mirum Pharmaceuticals trade was made in Q2 2020. Since then Ken Griffin bought shares 29 more times and sold shares on 29 occasions. The stake costed the investor $32.2M, netting the investor a gain of 250% so far.