Results of Operations and Financial Condition. On July 30, 2026, KBR, Inc. issued a press release titled, “KBR Reports Second Quarter Fiscal 2026 Results.” The full text of the press release is attached hereto as Exhibit 99.1.

The company amended and restated severance and change in control agreements for its executive officers.

Results of Operations and Financial Condition. On May 5, 2026, KBR, Inc. issued a press release titled, “KBR Reports First Quarter Fiscal 2026 Results.” The full text of the press release is attached hereto as Exhibit 99.1.

Results of Operations and Financial Condition. On February 26, 2026, KBR, Inc. issued a press release titled, “KBR Reports Fourth Quarter and Fiscal 2025 Results.” The full text of the press release is attached hereto as Exhibit 99.1.

Results of Operations and Financial Condition. On October 30, 2025, KBR, Inc. issued a press release titled, “KBR Reports Third Quarter Fiscal 2025 Results.” The full text of the press release is attached hereto as Exhibit 99.1.

Chief Financial Officer (CFO) — Shad E. Evans: Shad E. Evans will assume the position of Chief Financial Officer (CFO) effective January 5, 2026.

CFO — Shad E. Evans: The filing discloses the internal promotion of Shad E. Evans to CFO, with the outgoing CFO transitioning to a new role rather than leaving the company.

Regulation FD Disclosure. On September 24, 2025, KBR issued a press release announcing its plan to spin off its Mission Technology Solutions segment (the “Spin-Off”), in a transaction that is intended to be tax-free to KBR and its shareholders for U.S. federal income tax purposes. Copies of the press release and investor presentation materials are furnished as Exhibit 99.1 and 99.2, respectively, to this Current Report on Form 8-K. The information furnished pursuant to this Item 7.01, includi…

Director — Vigeveno: The filing discloses the appointment of a director to specific board committees, which is a routine governance action rather than an executive departure.

Director — Huibert H. Vigeveno: The filing discloses the appointment of a new independent director to the board, which is a routine governance event and not a departure of a senior executive.

Results of Operations and Financial Condition. On July 31, 2025, KBR, Inc. issued a press release titled, “KBR Reports Second Quarter Fiscal 2025 Results,” which includes updated fiscal 2027 financial targets in light of the wind-down of the HomeSafe joint venture. The full text of the press release is attached hereto as Exhibit 99.1.

COO — Byron Bright: The Chief Operating Officer is resigning and departing the company, representing the loss of a senior executive.

Chief Accounting Officer — Alison Vasquez: The departure of the Chief Accounting Officer is an orderly succession with a named interim and permanent successor, indicating a planned transition rather than a sudden loss of leadership.

Results of Operations and Financial Condition. On May 6, 2025, KBR, Inc. issued a press release titled, “KBR Reports First Quarter Fiscal 2025 Results.” The full text of the press release is attached hereto as Exhibit 99.1.

COO — Byron Bright: The filing announces the internal promotion of Byron Bright to Chief Operating Officer, which is a standard succession or advancement event rather than a departure.

Results of Operations and Financial Condition. On February 24, 2025, KBR, Inc. issued a press release titled, “KBR Reports Fourth Quarter and Fiscal Year 2024 Results.” The full text of the press release is attached hereto as Exhibit 99.1.

Other Events. On February 24, 2025, KBR, Inc. (“KBR”) announced that the independent directors of the KBR Board have unanimously elected Lt. General Wendy M. Masiello as Lead Independent Director, effective as of KBR’s 2025 annual meeting of stockholders to be held in May 2025 (the “Annual Meeting”). Lt. General Masiello’s appointment as Lead Independent Director is made in connection with the Board’s previously announced appointment of Stuart Bradie, KBR’s Chief Executive Officer, to Chair o…

Director — Lester L. Lyles: The filing discloses the planned retirement of the Board Chair, which is an orderly succession event rather than a sudden loss of a senior executive, alongside an internal promotion to COO.

Director — Mark E. Baldwin: The filing reports the retirement of a long-serving board director, which is an orderly succession event rather than a sudden loss of a senior executive officer.

Results of Operations and Financial Condition. On October 23, 2024, KBR, Inc. issued a press release titled, “KBR Announces Third Quarter Fiscal 2024 Financial Results.” The full text of the press release is attached hereto as Exhibit 99.1.

Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant. The information set forth under

Entry into a Material Definitive Agreement. On August 14, 2024, KBR, Inc. (the “Company”) entered into Amendment No. 13 (the “Amendment”) to its existing Credit Agreement, dated as of April 25, 2018 (as amended by Amendment No. 1, dated as of November 12, 2018, Amendment No. 2, dated as of February 7, 2020, Amendment No. 3, dated as of July 2, 2020, Amendment No. 4, dated as of September 14, 2020, Amendment No. 5, dated as of November 18, 2021, Amendment No. 6, dated as of May 17, 2022, Amend…

Director — Nchacha E. Etta: The filing announces the appointment of a new independent director to the board, which is a routine governance event and not a departure of a senior executive.

Results of Operations and Financial Condition. On July 24, 2024, KBR, Inc. issued a press release titled, “KBR Announces Second Quarter Fiscal 2024 Financial Results.” The full text of the press release is attached hereto as Exhibit 99.1.

Regulation FD Disclosure. As previously announced, KBR, Inc. (“KBR” or the “Company”) will hold a webcast of its Investor Day on Wednesday, May 8, 2024, beginning at 8:00 a.m. Central Time. The webcast can be accessed on KBR’s website at investors.kbr.com. The company will publish its Investor Day presentation in conjunction with the webcast and a replay will be available at investors.kbr.com following the live webcast. A copy of the presentation slides is furnished herewith as Exhibit 99.1.…