X0306 4 2015-12-31 0001133421 NORTHROP GRUMMAN CORP /DE/ NOC 0001199197 GORDON BRUCE S 2980 FAIRVIEW PARK DRIVE FALLS CHURCH VA 22042 1 Common Stock 2015-12-31 4 J 0 238.0000 188.8100 A 14277.0000 D Common Stock 2016-01-01 4 J 0 282.0000 188.8100 A 14559.0000 D Represents shares of common stock deferred into a stock unit account, including dividends, pursuant to the Northrop Grumman 2011 Long-Term Incentive Stock Plan in a transaction exempt pursuant to Rule 16b-3. Represents shares of common stock 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. Represents shares of common stock deferred into a stock unit account pursuant to the Northrop Grumman 2011 Long-Term Incentive Stock Plan in a transaction exempt pursuant to Rule 16b-3. The amount represents a one-time transition grant of stock units pursuant to the Company's Equity Grant Program for Non-Employee Directors under the Northrop Grumman 2011 Long-Term Incentive Stock Plan, as amended and restated effective January 1, 2016. /s/ Jennifer C. McGarey, Attorney-in-Fact 2016-01-05