WaterBridge Infrastructure LLC-A美股招股说明书(2026-05-07版)

This prospectus supplement amends and supplements the prospectus dated April 10, 2026, as supplemented or amended from time totime (the “Prospectus”), which forms a part of our Registration Statement on Form S-1 (No. 333-294703). This prospectussupplement is being filed to update and supplement the information in the Prospectus with the information contained in our QuarterlyReport on Form 10-Q filed with the U.S. Securities and Exchange Commission on May 6, 2026 (the “Quarterly Report”).Accordingly, we have attached the Quarterly Report to this prospectus supplement. The Prospectus and this prospectus supplement relate to the offer and sale, from time to time, by the selling shareholders identified inthe Prospectus of up to an aggregate of 83,250,000 Class A shares representing limited liability company interests (“Class A shares”)in WaterBridge Infrastructure LLC, a Delaware limited liability company. Our Class A shares are listed on the New York Stock Exchange (the “NYSE”) and NYSE Texas, Inc. (“NYSE Texas”) under thesymbol “WBI.” The last reported sales price of our Class A shares on the NYSE on May 5, 2026 was $30.60 per Class A share. We are a “controlled company” within the meaning of the NYSE and NYSE Texas rules and, as a result, qualify for and rely onexemptions from certain corporate governance requirements. This prospectus supplement updates and supplements the information in the Prospectus and is not complete without, and may not bedelivered or utilized except in combination with, the Prospectus, including any amendments or supplements thereto. This prospectussupplement should be read in conjunction with the Prospectus and if there is any inconsistency between the information in theProspectus and this prospectus supplement, you should rely on the information in this prospectus supplement. INVESTING IN OUR CLASS A SHARES INVOLVES RISKS. SEE THE “RISK FACTORS” SECTION ON PAGE 5 OFTHE PROSPECTUS. Neither the U.S. Securities and Exchange Commission nor any state securities commission has approved or disapproved ofthese securities or passed upon the adequacy or accuracy of this prospectus. Any representation to the contrary is a criminaloffense. Prospectus supplement dated May 6, 2026 UNITED STATESSECURITIES AND EXCHANGE COMMISSIONWASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Securities registered pursuant to Section 12(b) of the Act: WBI 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 of1934 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 filingrequirements 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 ofRegulation 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, oran emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growthcompany” in Rule 12b‑2 of the Exchange Act. Large accelerated filerNon‑accelerated filerEmerging 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 anynew or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.☐ Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b‑2 of the Exchange Act). Yes☐No☒As of May 6, 2026, the registrant had 47,016,059 Class A shares and 76,440,150 Class B shares representing limited liability company interests (“Class Bshares”) outstanding. TABLE OF CONTENTS PART I – FINANCIAL INFORMATION Glossary2Cautionary Statement Regarding Forward-Looking Statements3Item 1.Financial Statements (Unaudited)5 WaterBridge Infrastructure LLC Condensed Consolidated Balance SheetsCondensed Consolidated Statements of OperationsCondensed Consolidated Statements of Shareholders’and Member’s EquityCondensed Consolidated Statements of Cash FlowsNotes to the Condensed Consolidated Financial Statements 56789 WaterBridge Equity Finance LLC Condensed Consolidated Statement of OperationsCondensed Consolidated Statement of Changes in Mezzanine Equity and Members’ EquityCondensed Consolidated Statement of Cash FlowsNotes to the Condensed Consolidated Financial StatementsItem 2.Management’s Discussion and Analysis of Financial Condition and R