Ken Griffin acquired 365 Thousand O`Reilly Automotive shares worth $331 Million. That's 0.40% of their equity portfolio (29th largest holding). The first O`Reilly Automotive trade was made in Q2 2013. Since then Ken Griffin bought shares 49 more times and sold shares on 44 occasions. The stake costed the investor $133 Million, netting the investor a gain of 150% so far.