On March 15, 2023, the Board of Directors of KBR, Inc. (the “Company”) amended and restated the Company’s bylaws (the “Amended and Restated Bylaws”), effective immediately upon their adoption. These amendments principally provide for the following: to align the bylaws with changes in Delaware law, including those related to notice of adjourned stockholder meetings and the provision of the stockholder list at the annual meeting of stockholders; to add shareholder proxy access provisions for director nominations; to revise the advance notice requirements for stockholder director nominations to address the universal proxy rules adopted by the Securities and Exchange Commission; to clarify the Company’s exclusive forum provision; and to make other clarifying, conforming and ministerial changes.