Robert Bruce acquired 82.1 Thousand Supernus Pharmaceuticals shares worth $2.44 Million. That's 1.06% of their equity portfolio (18th largest holding). The first Supernus Pharmaceuticals trade was made in Q2 2014. Since then Robert Bruce bought shares five more times and sold shares on thirteen occasions. The stake costed the investor $1.38 Million, netting the investor a gain of 77% so far.