Artisan Partners Limited Partnership decreased its position in shares of Northrop Grumman Co. (NYSE:NOC – Free Report) by 12.8% during the fourth quarter, Holdings Channel.com reports. The firm owned 113,184 shares of the aerospace company’s stock after selling 16,633 shares during the period. Artisan Partners Limited Partnership’s holdings in Northrop Grumman were worth $52,986,000 as […]