John W. Rogers Jr. acquired 8.34M Gentex shares worth $205M. That's 2.19% of their equity portfolio (18th largest holding). The investor owns 3.92% of the outstanding Gentex stock. The first Gentex trade was made in Q2 2013. Since then John W. Rogers Jr. bought shares eleven more times and sold shares on nine occasions. The investor's estimated purchase price is $253M, resulting in a loss of 19%.