Chuck Royce acquired 2.02 Million Ribbon Communications shares worth $6.65 Million. That's 0.06% of their equity portfolio (409th largest holding). The investor owns 1.17% of the outstanding Ribbon Communications stock. The first Ribbon Communications trade was made in Q4 2017. Since then Chuck Royce bought shares eleven more times and sold shares on four occasions. The stake costed the investor $6.1 Million, netting the investor a gain of 9.0% so far.