Stanley Druckenmiller acquired 666k Citigroup shares worth $63.3M. That's 1.59% of their equity portfolio (19th largest holding). The first Citigroup trade was made in Q2 2015. Since then Stanley Druckenmiller bought shares seven more times and sold shares on eight occasions. The stake costed the investor $48.1M, netting the investor a gain of 32% so far.