
(Mark One)☒ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2025OR ☐TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 WaterBridge Infrastructure LLC Securities registered pursuant to Section 12(g) of the Act: NoneIndicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes☐No☒ Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. Yes☐No☒ Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.Yes☒No☐ Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).Yes☒No☐ Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growthcompany. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act. Accelerated filer☐Non-accelerated filer☒Smaller reporting company☐Emerging growth company☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financialaccounting standards provided pursuant to Section 13(a) of the Exchange Act.☐Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of internal control over financial reporting under section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report.☐If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrant included in the filing reflect the correction of an error to previously issued financial statements.☐Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensation received by any of the registrant’s executive officers during the relevant recovery period pursuant to § 240.10D-1(b).☐Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).Yes☐No☒ The aggregate market value of the registrant’s Class A shares representing limited liability company interests (“Class A shares”) held by non-affiliates of the registrant as of June30, 2025: $0. As ofMarch 13, 2026, the registrant had 43,264,850 Class A shares and 80,190,150 Class B shares representing limited liability company interests (“Class B shares”)outstanding. DOCUMENTS INCORPORATED BY REFERENCEPortions of the Registrant’s definitive proxy statement for the 2026 Annual Meeting of Shareholders, which will be filed with the U.S. Securities and Exchange Commission (the “SEC”) within 120 days after December 31, 2025, are incorporated by reference into Part III of this Annual Report on Form 10-K. TABLE OF CONTENTS GlossaryCautionary Note Regarding Forward-Looking Statements PART I Item 1.BusinessItem 1A.Risk FactorsItem 1B.Unresolved Staff CommentsItem 1C.CybersecurityItem 2.PropertiesItem 3.Legal ProceedingsItem 4.Mine Safety Disclosures PART II Item 5.Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities50Item 6.[Reserved]51Item 7.Management’s Discussion and Analysis of Financial Condition and Results of Operations52Item 7A.Quantitative and Qualitative Disclosures About Market Risk81Item 8.Financial Statements and Supplementary Data82Item 9.Changes in and Disagreements with Accountants on Accounting and Financial Disclosure149Item 9A.Controls and Procedures150Item 9B.Other Information150Item 9C.Disclosure Regarding Foreign Jurisdictions that Prevent Inspections150 PART III Item 10.Directors, Executive Officers and Corporate Governance150Item 11.Executive Compensation151Item 12.Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters151Item 13.Certain Relationships and Related Transactions, and Director Independence151Item 14.Principal Accountant Fees and Services151 PART IV Item 15.Exhibit and Financial Statement Schedules151Item 16.Form 10-K Summary151Signatures154 GLOSSARY The following are abbreviations and definitions of certain term