Andreas Halvorsen acquired 2.23 Million Mckesson shares worth $1.21 Billion. That's 4.30% of their equity portfolio (4th largest holding). The investor owns 1.74% of the outstanding Mckesson stock. The first Mckesson trade was made in Q4 2013. Since then Andreas Halvorsen bought shares nine more times and sold shares on five occasions. The stake costed the investor $827 Million, netting the investor a gain of 47% so far.