Ken Griffin acquired 890 Thousand Shockwave Medical shares worth $294 Million. That's 0.29% of their equity portfolio (50th largest holding). The investor owns 2.38% of the outstanding Shockwave Medical stock. The first Shockwave Medical trade was made in Q1 2019. Since then Ken Griffin bought shares eight more times and sold shares on ten occasions. The stake costed the investor $192 Million, netting the investor a gain of 53% so far.