SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K (Mark One) ANNUAL REPORT PURSUANT TO SECTION 15(d) OFTHE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December31, 2025 OR TRANSITION REPORT PURSUANT TO SECTION 15(d) OFTHE SECURITIES EXCHANGE ACT OF1934 For the transition period from ________________________to_______________________ Commission File Number: 001-37483 A.Full title of the plan and address of the plan, if different from that of the issuer named below: HEWLETT PACKARD ENTERPRISE 401(k) PLAN B.Name of issuer of the securities held pursuant to the plan and the address of its principal executive office: 1701East Mossy Oaks RoadSpring, Texas 77389 Hewlett Packard Enterprise 401(k) Plan Financial Statements and Supplemental Schedule December31, 2025 and 2024 and for the Year Ended December31, 2025 Contents Report of Independent Registered Public Accounting Firm Audited Financial Statements Statements of Net Assets Available for BenefitsStatement of Changes in Net Assets Available for Benefits Supplemental Schedule Schedule H, Part IV, Line 4i– Schedule of Assets (Held at End of Year) Signature Exhibit IndexExhibit 23.1 - Consent of Independent Registered Public Accounting Firm Report of Independent Registered Public Accounting Firm To the Plan Participants and the Plan Administrator of Hewlett Packard Enterprise 401(k) Plan Opinion on the Financial Statements We have audited the accompanying statements of net assets available for benefits of Hewlett Packard Enterprise401(k) Plan (the Plan) as of December31, 2025 and 2024, and the related statement of changes in net assetsavailable for benefits for the year ended December31, 2025, and the related notes (collectively referred to as the“financial statements”). In our opinion, the financial statements present fairly, in all material respects, the netassets available for benefits of the Plan at December31, 2025 and 2024, and the changes in its net assets Basis for Opinion These financial statements are the responsibility of the Plan’s management. Our responsibility is to express anopinion on the Plan’s financial statements based on our audits. We are a public accounting firm registered withthe Public Company Accounting Oversight Board (United States) (PCAOB) and are required to be independent We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we planand perform the audit to obtain reasonable assurance about whether the financial statements are free of materialmisstatement, whether due to error or fraud. The Plan is not required to have, nor were we engaged to perform,an audit of its internal control over financial reporting. As part of our audits we are required to obtain an Our audits included performing procedures to assess the risks of material misstatement of the financialstatements, whether due to error or fraud, and performing procedures that respond to those risks. Suchprocedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financialstatements. Our audits also included evaluating the accounting principles used and significant estimates made Supplemental Schedule Required by ERISA The accompanying supplemental schedule of assets (held at end of year) as of December31, 2025 (referred to conjunction with the audit of the Plan’s financial statements. The information in the supplemental schedule istheresponsibility of the Plan’s management.Our audit procedures included determining whether theinformation reconciles to the financial statements or the underlying accounting and other records, as applicable,and performing procedures to test the completeness and accuracy of the information presented in the /s/ Ernst & Young LLP We have served as the Plan’s auditor since 2016. Houston, TexasJune16, 2026 Hewlett Packard Enterprise 401(k) Plan Hewlett Packard Enterprise 401(k) Plan Notes to Financial Statements 1. Description of the Plan The following brief description of the Hewlett Packard Enterprise 401(k) Plan (the Plan) provides only generalinformation. Participants should refer to the summary plan description for a more complete description of the General The Plan is a defined contribution plan covering eligible employees of Hewlett Packard Enterprise Company(the Company, Employer, Plan Sponsor, or HPE) and designated domestic subsidiaries who are on the U.S.payroll and who are employed as regular full-time, regular part-time or limited-term employees. The Plan wasestablished on November 1, 2015. The Plan is subject to the provisions of the Employee Retirement Income Investments Assets of the Plan are invested in a five-tier investment structure. Tier 1 includes nine Birth Date Funds and theConservative Portfolio. The Birth Date Funds’ investment strategies are designed to become more conservativeas participants grow older. The Conservative Portfolio’s investment strategy is designed for