Ken Griffin acquired 82.8k Welltower shares worth $17.1M. That's 0.01% of their equity portfolio (1174th largest holding). The first Welltower trade was made in Q3 2015. Since then Ken Griffin bought shares 60 more times and sold shares on 57 occasions. The stake costed the investor $7.01M, netting the investor a gain of 144% so far.