Ken Griffin acquired 17.9 Million Alphabet shares worth $2.85 Billion. That's 2.89% of their equity portfolio (2nd largest holding). The first Alphabet trade was made in Q4 2015. Since then Ken Griffin bought shares 41 more times and sold shares on 48 occasions. The stake costed the investor $1.63 Billion, netting the investor a gain of 75% so far.