Ken Griffin's position in Ionis Pharmaceuticals is currently worth $1.89 Million. That's 0.00% of their equity portfolio (2255th largest holding). The first Ionis Pharmaceuticals trade was made in Q1 2016. Since then Ken Griffin bought shares 41 more times and sold shares on 47 occasions. The investor's estimated purchase price is $2.2 Million, resulting in a loss of 14%.