Mario Gabelli acquired 29.3 Thousand United States Steel shares worth $1.24 Million. That's 0.01% of their equity portfolio (518th largest holding). The first United States Steel trade was made in Q2 2002. Since then Mario Gabelli bought shares eleven more times and sold shares on two occasions. The stake costed the investor $1.22 Million, netting the investor a gain of 2.3% so far.