Ken Griffin's position in Alpine Immune Sciences is currently worth $56.5 Million. That's 0.06% of their equity portfolio (416th largest holding). The investor owns 1.34% of the outstanding Alpine Immune Sciences stock. The first Alpine Immune Sciences trade was made in Q1 2021. Since then Ken Griffin bought shares three more times and sold shares on three occasions. The stake costed the investor $11.9 Million, netting the investor a gain of 375% so far.