Ken Griffin acquired 69 Thousand Natera shares worth $11.2 Million. That's 0.01% of their equity portfolio (1116th largest holding). The first Natera trade was made in Q3 2015. Since then Ken Griffin bought shares 48 more times and sold shares on 29 occasions. The stake costed the investor $5.25 Million, netting the investor a gain of 113% so far.