UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K For the transition period from _____ to _____ Commission file number 1-16411 NORTHROP GRUMMAN CORPORATION (Exact name of registrant as specified in its charter) Delaware 80-0640649 (I.R.S. Employer (State or other jurisdiction of incorporation or organization) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 or ☐ TRANSITION REPORT PURSUANT TO SEC ...