John W. Rogers Jr. acquired 6.56 Million Gentex shares worth $230 Million. That's 2.29% of their equity portfolio (12th largest holding). The investor owns 2.86% of the outstanding Gentex stock. The first Gentex trade was made in Q2 2013. Since then John W. Rogers Jr. bought shares six more times and sold shares on five occasions. The stake costed the investor $208 Million, netting the investor a gain of 11% so far.