NOC NORTHROP GRUMMAN CORP Capital Structure Changes 8-K Filing 2023 - Amendments to Certificate of Incorporation and Bylaws Northrop Grumman Corp approved amendments to its Certificate of Incorporation and Bylaws, reducing the ownership threshold required to call a special meeting from 25% to 15%, which was approved by shareholders at the Annual Meeting.Get access to all SEC 8-K filings of the NORTHROP GRUMMAN CORP