X0306 4 2019-09-30 0001133421 NORTHROP GRUMMAN CORP /DE/ NOC 0001238288 KRAPEK KARL J 2980 FAIRVIEW PARK DRIVE FALLS CHURCH VA 22042 1 Common Stock 2019-09-30 4 A 0 86.0000 374.7900 A 27500.0000 D Represents shares of common stock deferred into a stock unit account pursuant to the Northrop Grumman 2011 Long-Term Incentive Stock Plan (the "Plan") in a transaction exempt pursuant to Rule 16b-3. Total amount includes (i) 4,856 shares of common stock; and (ii) 22,644 shares of common stock, including dividends, held in a stock unit account pursuant to the Northrop Grumman 2011 Long-Term Incentive Stock Plan and the 1993 Stock Plan for Non-Employee Directors. Dividends earned on shares held in the stock unit account were exempt from Section 16 and not reportable under Rule 16a-11. /s/ Jennifer C. McGarey, Attorney-in-Fact 2019-10-02