Mario Gabelli acquired 53.3 Thousand Citigroup shares worth $3.37 Million. That's 0.03% of their equity portfolio (384th largest holding). The first Citigroup trade was made in Q2 2011. Since then Mario Gabelli bought shares sixteen more times and sold shares on 34 occasions. The stake costed the investor $2.9 Million, netting the investor a gain of 16% so far.