Ken Griffin's position in Axcelis Technologies is currently worth $17.1 Million. That's 0.02% of their equity portfolio (861st largest holding). The first Axcelis Technologies trade was made in Q2 2017. Since then Ken Griffin bought shares 32 more times and sold shares on 35 occasions. The stake costed the investor $16.2 Million, netting the investor a gain of 5.7% so far.