John W. Rogers Jr. acquired 2.55 Million Northern Trust shares worth $218 Million. That's 2.29% of their equity portfolio (10th largest holding). The investor owns 1.25% of the outstanding Northern Trust stock. The first Northern Trust trade was made in Q1 2013. Since then John W. Rogers Jr. bought shares 23 more times and sold shares on 21 occasions. The stake costed the investor $178 Million, netting the investor a gain of 23% so far.