Jim Simons's position in Mirum Pharmaceuticals is currently worth $53.8M. That's 0.07% of their equity portfolio (323rd largest holding). The investor owns 1.06% of the outstanding Mirum Pharmaceuticals stock. The first Mirum Pharmaceuticals trade was made in Q2 2020. Since then Jim Simons bought shares twelve more times and sold shares on ten occasions. The stake costed the investor $34.2M, netting the investor a gain of 57% so far.