John W. Rogers Jr. acquired 6.39 Million Gentex shares worth $142 Million. That's 1.72% of their equity portfolio (24th largest holding). The investor owns 2.90% of the outstanding Gentex stock. The first Gentex trade was made in Q2 2013. Since then John W. Rogers Jr. bought shares seven more times and sold shares on eight occasions. The investor's estimated purchase price is $203 Million, resulting in a loss of 30%.