John W. Rogers Jr. acquired 2.66 Million Northern Trust shares worth $230 Million. That's 2.28% of their equity portfolio (13th largest holding). The investor owns 1.30% 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 twenty occasions. The stake costed the investor $185 Million, netting the investor a gain of 24% so far.