Mario Gabelli acquired 482 Thousand Liberty Media Corp. (Tracking Stock - SiriusXM) Series C shares worth $19.3 Million. That's 0.2% of their equity portfolio (145th largest holding). The first Liberty Media Corp. (Tracking Stock - SiriusXM) Series C trade was made in Q2 2016. Since then Mario Gabelli bought shares four more times and sold shares on nineteen occasions. The stake costed the investor $15.1 Million, netting the investor a gain of 28% so far.