(Mark One) ☒QUARTERLY REPORT PURSUANT TO SECTION13 OR 15(d)OF THE SECURITIESEXCHANGE ACT OF 1934 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Indicate by check mark whether the registrant: (1)has filed all reports required to be filed by Section13 or 15(d)of the SecuritiesExchange 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 submittedpursuant to Rule405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that theregistrant 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, smaller reportingcompany, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,”and “emerging growth company” in Rule12b-2 of the Exchange Act. Indicate by check mark whether the registrant is a shell company (as defined in Rule12b-2 of the Exchange Act)☐Yes☒No Table of Contents TABLE OF CONTENTS PageCAUTIONARYSTATEMENTREGARDINGFORWARD-LOOKINGSTATEMENTS1PARTI—FINANCIAL INFORMATION3Item1.Condensed Consolidated Financial Statements (Unaudited)3Item2.Management’s Discussion and Analysis of Financial Condition and Results of Operations30Item3.Quantitative and Qualitative Disclosures About Market Risk42Item4. Controls and Procedures42PARTII—OTHER INFORMATION43Item1.Legal Proceedings43Item1A.Risk Factors43Item 2.Unregistered Sales of Equity Securities and Use ofProceeds43Item 4.Mine Safety Disclosures43Item 5.Other Information43Item6. Exhibits44SIGNATURES45 Table of Contents CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING STATEMENTS Some of the information in this Quarterly Report on Form 10-Q may contain “forward-lookingstatements” within the meaning of Section 27A of the Securities Act of 1933, as amended (the “Securities Act”),and Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). All statements,other than statements of historical fact, included in this Quarterly Report on Form 10-Q, regarding our strategy,future operations, financial position, estimated revenues and losses, projected costs, prospects, plans andobjectives of management are forward-looking statements. Words such as “may,” “assume,” “forecast,”“position,” “predict,” “strategy,” “expect,” “intend,” “plan,” “estimate,” “anticipate,” “believe,” “project,”“budget,” “potential,” or “continue,” and similar expressions are used to identify forward-looking statements,although not all forward-looking statements contain such identifying words. When considering these forward-looking statements, investors should keep in mind the risk factors and other cautionary statements in thisQuarterly Report on Form 10-Q and in our Annual Report on Form 10-K for the year ended December31, 2025.These forward-looking statements are based on management’s current beliefs, based on currently availableinformation, as to the outcome and timing of future events. Factors that could cause our actual results to differmaterially from the results contemplated by such forward-looking statements include: ●Antero Resources Corporation’s (“Antero Resources”) expected production and development plan;●our ability to execute our business strategy;●impacts to producer customers of insufficient storage capacity;●our ability to obtain debt or equity financing on satisfactory terms to fund additional acquisitions,expansion projects, working capital requirements and the repayment or refinancing ofindebtedness;●natural gas, natural gas liquids (“NGLs”), and oil prices;●our ability to realize the anticipated benefits of our investments in unconsolidated affiliates;●our ability to execute our share repurchase and dividend programs;●our ability to complete the construction of or purchase new gathering and compression, processing,water handling or other assets on schedule, at the budgeted cost or at all, and the ability of suchassets to operate as designed or at expected levels;●risks associated with the successful integration and future performance of the HG Acquisition (asdefined in Note 3—Transactions to the unaudited condensed consolidated financial statements);●costs of conducting our operations;●impacts of geopolitical events, including the conflicts in Ukraine, Venezuela and in the MiddleEast, and world health events;●actions taken by third-party producers, operators, processors and transporters;●competition;●government regulations and changes in laws;●operating hazards, natural disasters, weather-related delays, casualty losses and other mattersbeyond our control;●expectations regarding the amount and timing of litigation aw