Ken Griffin's position in M & T Bank is currently worth $13.2 Million. That's 0.02% of their equity portfolio (1034th largest holding). The first M & T Bank trade was made in Q2 2013. Since then Ken Griffin bought shares 45 more times and sold shares on 32 occasions. The stake costed the investor $10.7 Million, netting the investor a gain of 23% so far.