Ken Griffin acquired 272 Thousand Shake Shack shares worth $36.9 Million. That's 0.04% of their equity portfolio (585th largest holding). The first Shake Shack trade was made in Q2 2015. Since then Ken Griffin bought shares 57 more times and sold shares on 49 occasions. The stake costed the investor $19.3 Million, netting the investor a gain of 91% so far.