Northrop Grumman Corporation

NOC·NYSE·$556.80Share Price as of 11/2·$79BMarket Cap as of 11/2

Financials

10-QQ3 ended 09/30/2610/20/26 10-QQ2 ended 06/30/2607/21/26 10-QQ1 ended 03/31/2604/21/26 10-KFY 202501/27/26 10-QQ3 ended 09/30/2510/21/25

Disclosures

8-KCurrent report10/20/26 8-KCurrent report08/21/26 8-KCurrent report07/21/26 8-KCurrent report05/21/26 8-KCurrent report04/21/26

Prospectuses and Registrations

S-3ASRAutomatic shelf registration04/21/26 424B5Prospectus supplement05/28/25 FWPFree writing prospectus05/28/25 424B5Prospectus supplement05/27/25 S-8Registration of securities for employees07/25/24

Proxies

DEFA14AAdditional proxy materials05/13/26 DEF 14ADefinitive proxy04/03/26 DEFA14AAdditional proxy materials05/14/25 PX14A6GLetter to shareholders04/11/25 DEF 14ADefinitive proxy04/04/25

Ownership

3/AInitial insider ownership (amended)10/20/26 Form 4Insider transaction10/01/26 Form 4Insider transaction10/01/26 Form 4Insider transaction08/21/26 SC 13G/ABeneficial ownership (amended)08/12/26

Other

11-KEmployee stock purchase plan report06/11/26 11-KEmployee stock purchase plan report06/11/26 11-K/AEmployee stock purchase plan report (amended)06/11/26 11-K/AEmployee stock purchase plan report (amended)06/11/26 SDConflict Minerals disclosure05/28/26