Ken Griffin acquired 1.41M Mirum Pharmaceuticals shares worth $107M. That's 0.09% of their equity portfolio (285th largest holding). The investor owns 2.88% of the outstanding Mirum Pharmaceuticals stock. The first Mirum Pharmaceuticals trade was made in Q2 2020. Since then Ken Griffin bought shares eleven more times and sold shares on seven occasions. The stake costed the investor $33.7M, netting the investor a gain of 218% so far.