Ray Dalio acquired 3.31 Million Pfizer shares worth $171 Million. That's 0.75% of their equity portfolio (21st largest holding). The first Pfizer trade was made in Q4 2005. Since then Ray Dalio bought shares 34 more times and sold shares on 23 occasions. The stake costed the investor $168 Million, netting the investor a gain of 1.5% so far.