YHD - Delayed Quote • USD Northrop Grumman Innovation Systems, Inc. (AD9S.F) Follow 4,991,000,064.00 +32.41 (+0.00%) As of June 28 at 6:07 PM EDT. Market Open. All News Press Releases SEC Filings All SEC Filings Corporate Changes & Voting Matters Periodic Financial Reports Proxy Statements Tender Offer/Acquisition Reports Offering Registrations Weʼre unable to load stories right now.