Exhibit 99 News Release Contact: Kate Mauss (Media) 410-832-6792 katherine.mauss@ngc.com Todd Ernst (Investors) 703-280-4535 todd.ernst@ngc.com Northrop Grumman Reports Second Quarter 2025 Financial Results FALLS CHURCH, Va. – July 22, 2025 – Northrop Grumman Corporation (NYSE: NOC) reported second quarter 2025 sales increased 1 percent to $10.4 billion, as compared with$10.2 billion in the second quarter of 2024. Second quarter 2025 net earnings totaled $1.2 billion, or$8.15 per diluted share, as compare ...