Charles Brandes acquired 10.8 Thousand Quest Diagnostics shares worth $1.91 Million. That's 0.02% of their equity portfolio (144th largest holding). The first Quest Diagnostics trade was made in Q4 2014. Since then Charles Brandes bought shares eleven more times and sold shares on 22 occasions. The stake costed the investor $1.48 Million, netting the investor a gain of 29% so far.