Ken Griffin acquired 4.5 Thousand Atricure shares worth $140 Thousand. That's 0.00% of their equity portfolio (4162nd largest holding). The first Atricure trade was made in Q4 2013. Since then Ken Griffin bought shares 40 more times and sold shares on 35 occasions. The stake costed the investor $136 Thousand, netting the investor a gain of 3.3% so far.