Ken Griffin acquired 2.1 Million Resmed shares worth $443 Million. That's 0.52% of their equity portfolio (20th largest holding). The investor owns 1.39% of the outstanding Resmed stock. The first Resmed trade was made in Q2 2013. Since then Ken Griffin bought shares 51 more times and sold shares on 37 occasions. The investor's estimated purchase price is $452 Million, resulting in a loss of 1.9%.