Ken Griffin's position in SEI Investments is currently worth $1.4 Million. That's 0.00% of their equity portfolio (2498th largest holding). The first SEI Investments trade was made in Q2 2013. Since then Ken Griffin bought shares 40 more times and sold shares on 35 occasions. The stake costed the investor $1.24 Million, netting the investor a gain of 13% so far.