NOC ▼ -1.3% - Northrop Grumman Corporation $NOC -- NORTHROP GRUMMAN TO DELIVER NEW SPACE DOMAIN AWARENESS PROTOTYPE SATELLITE Northrop Grumman announced it will deliver a new space domain awareness prototype satellite, but shares fell 1.3% today despite the contract award, suggesting investors may have viewed the development milestone as already priced in or had concerns about the program's commercial implications. 18-SEP-2026 11:12 AM ET