Chuck Royce acquired 328 Thousand U.S. Silica Holdings shares worth $5.1 Million. That's 0.05% of their equity portfolio (465th largest holding). The first U.S. Silica Holdings trade was made in Q1 2013. Since then Chuck Royce bought shares 21 more times and sold shares on thirteen occasions. The stake costed the investor $4.02 Million, netting the investor a gain of 27% so far.