Ken Griffin's position in Red Robin Gourmet Burgers is currently worth $324 Thousand. That's 0.00% of their equity portfolio (3832nd largest holding). The first Red Robin Gourmet Burgers trade was made in Q2 2013. Since then Ken Griffin bought shares 49 more times and sold shares on 53 occasions. The investor's estimated purchase price is $421 Thousand, resulting in a loss of 23%.