Donald Yacktman acquired 387 Thousand Northrop Grumman shares worth $183 Million. That's 1.67% of their equity portfolio (21st largest holding). The first Northrop Grumman trade was made in Q1 2021. Since then Donald Yacktman bought shares three more times and sold shares on nine occasions. The stake costed the investor $117 Million, netting the investor a gain of 56% so far.