Ken Griffin acquired 16.5 Thousand O`Reilly Automotive shares worth $22.4 Million. That's 0.02% of their equity portfolio (787th largest holding). The first O`Reilly Automotive trade was made in Q2 2013. Since then Ken Griffin bought shares 57 more times and sold shares on 54 occasions. The stake costed the investor $8.43 Million, netting the investor a gain of 166% so far.