Ken Griffin acquired 26.4 Thousand MKS Instruments shares worth $2.04 Million. That's 0.00% of their equity portfolio (2273rd largest holding). The first MKS Instruments trade was made in Q2 2013. Since then Ken Griffin bought shares 57 more times and sold shares on 53 occasions. The investor's estimated purchase price is $3.07 Million, resulting in a loss of 34%.