AM / Antero Midstream Corporation - Pengajuan SECLaporan Tahunan, Pernyataan Proksi

Antero Midstream Corporation
US ˙ NYSE ˙ US03676B1026

Mga Batayang Estadistika
CIK 1623925
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to Antero Midstream Corporation
SEC Filings (Chronological Order)
Halaman ini menyediakan daftar lengkap dan kronologis dari Pengajuan SEC, tidak termasuk pengajuan kepemilikan yang kami sediakan di tempat lain.
August 14, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 14, 2025 ANTERO MIDSTREAM

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 14, 2025 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Commi

August 14, 2025 EX-99.1

Antero Resources and Antero Midstream Announce Co-Founder Paul M. Rady to Transition to Chairman Emeritus

Exhibit 99.1 Antero Resources and Antero Midstream Announce Co-Founder Paul M. Rady to Transition to Chairman Emeritus Denver, Colorado, August 14, 2025—Antero Resources Corporation (NYSE: AR) (“Antero Resources”) and Antero Midstream Corporation (NYSE: AM) (“Antero Midstream”) announced that, effective today, Co-Founder Paul M. Rady will transition from his roles as Chief Executive Officer and Pr

August 14, 2025 EX-10.1

CHAIRMAN EMERITUS AGREEMENT

Exhibit 10.1 CHAIRMAN EMERITUS AGREEMENT This Chairman Emeritus Agreement (this “Agreement”) is entered into as of August 14, 2025 (the “Effective Date”) by and among Antero Resources Corporation, a Delaware corporation (“Antero Resources”), Antero Midstream Corporation, a Delaware corporation (“Antero Midstream” and together with Antero Resources, the “Companies”), and Paul M. Rady (“Rady”). The

August 14, 2025 EX-99.2

Antero Resources and Antero Midstream Announce Michael N. Kennedy to Serve as Chief Executive Officer, President and Director

Exhibit 99.2 Antero Resources and Antero Midstream Announce Michael N. Kennedy to Serve as Chief Executive Officer, President and Director Denver, Colorado, August 14, 2025—Antero Resources Corporation (NYSE: AR) (“Antero Resources”) and Antero Midstream Corporation (NYSE: AM) (“Antero Midstream”) announced that, effective today, Michael N. Kennedy will serve as Chief Executive Officer and Preside

August 14, 2025 EX-3.1

SECOND AMENDED AND RESTATED BYLAWS ANTERO MIDSTREAM CORPORATION Incorporated under the Laws of the State of Delaware Date of Adoption: August 14, 2025 ARTICLE I OFFICES AND RECORDS

Exhibit 3.1 SECOND AMENDED AND RESTATED BYLAWS OF ANTERO MIDSTREAM CORPORATION Incorporated under the Laws of the State of Delaware Date of Adoption: August 14, 2025 ARTICLE I OFFICES AND RECORDS SECTION 1.1. Registered Office. The registered office of the Corporation in the State of Delaware shall be located at 1209 Orange Street, City of Wilmington, County of New Castle, and the name of the Corp

August 12, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 12, 2025 ANTERO MIDSTREAM

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 12, 2025 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Commi

July 30, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 30, 2025 ANTERO MIDSTREAM CO

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 30, 2025 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Commiss

July 30, 2025 EX-99.1

Antero Midstream Announces Second Quarter 2025 Financial and Operating Results and Increased Guidance

Exhibit 99.1 Antero Midstream Announces Second Quarter 2025 Financial and Operating Results and Increased Guidance Denver, Colorado, July 30, 2025—Antero Midstream Corporation (NYSE: AM) (“Antero Midstream” or the “Company”) today announced its second quarter 2025 financial and operating results. The relevant unaudited condensed consolidated financial statements are included in Antero Midstream’s

July 30, 2025 10-Q

PartnersCapitalAbstract UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents PartnersCapitalAbstract UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

June 6, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): June 4, 2025 ANTERO MIDSTREAM COR

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): June 4, 2025 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Commissi

May 19, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 19, 2025 ANTERO MIDSTREAM COR

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 19, 2025 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Commissi

April 30, 2025 10-Q

PartnersCapitalAbstract UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents PartnersCapitalAbstract UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

April 30, 2025 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): April 30, 2025 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Commis

April 30, 2025 EX-99.1

Antero Midstream Announces First Quarter 2025 Financial and Operating Results

Exhibit 99.1 Antero Midstream Announces First Quarter 2025 Financial and Operating Results Denver, Colorado, April 30, 2025—Antero Midstream Corporation (NYSE: AM) (“Antero Midstream” or the “Company”) today announced its first quarter 2025 financial and operating results. The relevant unaudited condensed consolidated financial statements are included in Antero Midstream’s Quarterly Report on Form

April 24, 2025 DEF 14A

NOTICE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant Filed by a Party other than the Registrant Check the appropriate box: Preliminary Proxy Statement Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) Definitive Prox

April 24, 2025 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No.

February 12, 2025 EX-4.3

Form of Subordinated Debt Securities (included in Exhibit 4.3).

Exhibit 4.3 ANTERO MIDSTREAM CORPORATION to COMPUTERSHARE TRUST COMPANY, N.A. Trustee INDENTURE Dated as of [             ] [ ], 20[ ] SUBORDINATED DEBT SECURITIES ANTERO MIDSTREAM CORPORATION Certain Sections of this Indenture relating to Sections 310 through 318, inclusive, of the Trust Indenture Act of 1939, as amended Trust Indenture Act Section Indenture Section Section 310(a)(1) 609 (a)(2) 6

February 12, 2025 S-3ASR

As filed with the Securities and Exchange Commission on February 12, 2025

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on February 12, 2025 Registration No.

February 12, 2025 EX-4.2

Form of Senior Debt Securities (included in Exhibit 4.2).

  Exhibit 4.2       ANTERO MIDSTREAM CORPORATION   to   COMPUTERSHARE TRUST COMPANY, N.A.   Trustee   INDENTURE   Dated as of [               ] [     ], 20[     ]   SENIOR DEBT SECURITIES       ANTERO MIDSTREAM CORPORATION   Certain Sections of this Indenture relating to Sections 310 through 318, inclusive, of the Trust Indenture Act of 1939, as amended   Trust Indenture Act Section   Indenture Se

February 12, 2025 EX-FILING FEES

Filing Fee Table.

Calculation of Filing Fee Tables S-3 Antero Midstream Corp Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial Effective Date Filing Fee Previously Paid in Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to be Paid 1 Equity Common Stock 457(r) $ 0.

February 12, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): February 12, 2025 ANTERO MIDSTREA

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): February 12, 2025 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Com

February 12, 2025 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File No. 001-38075 ANTERO MIDSTREAM CORPORATION (Exact name of r

February 12, 2025 EX-99.1

Antero Midstream Announces Fourth Quarter 2024 Results and 2025 Guidance

Exhibit 99.1 Antero Midstream Announces Fourth Quarter 2024 Results and 2025 Guidance Denver, Colorado, February 12, 2025—Antero Midstream Corporation (NYSE: AM) (“Antero Midstream” or the “Company”) today announced its fourth quarter 2024 financial and operating results and 2025 guidance. The relevant consolidated financial statements are included in Antero Midstream’s Annual Report on Form 10-K

February 12, 2025 EX-19.1

Antero Midstream Corporation Insider Trading Policies.

‌Exhibit 19.1 ANTERO MIDSTREAM CORPORATION insider Trading Policy (Amended as of April 11, 2023) This Insider Trading Policy (this “Policy”) provides guidelines to directors, officers and employees (collectively, the “Covered Persons” or “insiders”) of Antero Midstream Corporation (the “Company”) with respect to transactions in the Company’s securities (such as common stock, options to buy or sell

February 12, 2025 EX-21.1

Subsidiaries of Antero Midstream Corporation.

Exhibit 21.1 SUBSIDIARIES OF ANTERO MIDSTREAM CORPORATION Name of Subsidiary Jurisdiction of Organization Antero Midstream NewCo Inc. Delaware Antero IDR Holdings LLC Delaware Antero Midstream Partners GP LLC Delaware Antero Midstream Preferred Co LLC Delaware Antero Midstream Partners LP Delaware Antero Midstream LLC Delaware Antero Treatment LLC Delaware Antero Water LLC Delaware

February 12, 2025 EX-25.1

Form T-1 Statement of Eligibility and Qualification respecting the Senior Indenture.

Exhibit 25.1 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE CHECK IF AN APPLICATION TO DETERMINE ELIGIBILITY OF A TRUSTEE PURSUANT TO SECTION 305(b)(2) ¨ Computershare Trust Company, National Association (Exact name of trustee as specified in its charter) N

February 12, 2025 EX-25.2

Form T-1 Statement of Eligibility and Qualification respecting the Subordinated Indenture.

Exhibit 25.2 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE CHECK IF AN APPLICATION TO DETERMINE ELIGIBILITY OF A TRUSTEE PURSUANT TO SECTION 305(b)(2) ¨ Computershare Trust Company, National Association (Exact name of trustee as specified in its charter) N

January 14, 2025 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): January 14, 2025 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Comm

January 14, 2025 EX-99.1

Antero Midstream Announces Fourth Quarter 2024 Return of Capital and Earnings Release Date and Conference Call

Exhibit 99.1 Antero Midstream Announces Fourth Quarter 2024 Return of Capital and Earnings Release Date and Conference Call Denver, Colorado, January 14, 2025—Antero Midstream Corporation (NYSE: AM) (“Antero Midstream” or the “Company”) today announced that the Board of Directors of Antero Midstream declared a cash dividend of $0.225 per share for the fourth quarter of 2024. The Company also repur

October 30, 2024 EX-99.1

Antero Midstream Announces Third Quarter 2024 Results and New Appointment to the Board of Directors

Exhibit 99.1 Antero Midstream Announces Third Quarter 2024 Results and New Appointment to the Board of Directors Denver, Colorado, October 30, 2024—Antero Midstream Corporation (NYSE: AM) (“Antero Midstream” or the “Company”) today announced its third quarter 2024 financial and operating results. The relevant unaudited condensed consolidated financial statements are included in Antero Midstream’s

October 30, 2024 10-Q

PartnersCapitalAbstract UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents PartnersCapitalAbstract UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

October 30, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): October 30, 2024 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Comm

August 8, 2024 8-K

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 8, 2024 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Commis

July 31, 2024 EX-99.1

Antero Midstream Announces Second Quarter 2024 Financial and Operating Results

Exhibit 99.1 Antero Midstream Announces Second Quarter 2024 Financial and Operating Results Denver, Colorado, July 31, 2024—Antero Midstream Corporation (NYSE: AM) (“Antero Midstream” or the “Company”) today announced its second quarter 2024 financial and operating results. The relevant unaudited condensed consolidated financial statements are included in Antero Midstream’s Quarterly Report on For

July 31, 2024 10-Q

PartnersCapitalAbstract UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents PartnersCapitalAbstract UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

July 31, 2024 EX-10.2

Third Amended and Restated Credit Agreement, dated July 30, 2024, among Antero Midstream Partners LP, as the Borrower, the Lenders party thereto and Wells Fargo Banks, National Association, as Administrative Agent (incorporated by reference to Exhibit 10.2 to the Company’s Quarterly Report on Form 10-Q (Commission File No. 001-38075) filed on July 31, 2024).

Exhibit 10.2 Execution Version THIRD AMENDED AND RESTATED CREDIT AGREEMENT Dated as of July 30, 2024 among ANTERO MIDSTREAM PARTNERS LP, as the Borrower, WELLS FARGO BANK, NATIONAL ASSOCIATION, as Administrative Agent, Swingline Lender and an L/C Issuer, and The Other Lenders Party Hereto WELLS FARGO SECURITIES, LLC, as Joint Lead Arranger and Joint Bookrunner and JPMORGAN CHASE BANK, N.A., as Joi

July 31, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 31, 2024 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Commiss

July 31, 2024 EX-FILING FEES

Filing Fee Table

Calculation of Filing Fee Tables S-8 Antero Midstream Corp Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee 1 Equity common stock, $0.

July 31, 2024 S-8

As filed with the Securities and Exchange Commission on July 31, 2024

As filed with the Securities and Exchange Commission on July 31, 2024 Registration No.

June 6, 2024 EX-10.1

Amended and Restated Antero Midstream Corporation Long Term Incentive Plan, dated June 5, 2024 (incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K (Commission File No. 001-38075) filed on June 6, 2024).

Exhibit 10.1 AMENDED AND RESTATED ANTERO MIDSTREAM CORPORATION LONG TERM INCENTIVE PLAN 1.            Purpose. The purpose of the Amended and Restated Antero Midstream Corporation Long Term Incentive Plan (the “Plan”) is to provide a means through which (a) Antero Midstream Corporation, a Delaware corporation (the “Company”), and its Affiliates may attract, retain and motivate qualified persons as

June 6, 2024 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): June 5, 2024 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Commissi

May 6, 2024 8-K

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 6, 2024 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Commissio

May 2, 2024 EX-99.1

Antero Midstream Announces Bolt-On Acquisition, Increased 2024 Guidance and Redemption of 2026 Senior Notes

Exhibit 99.1 Antero Midstream Announces Bolt-On Acquisition, Increased 2024 Guidance and Redemption of 2026 Senior Notes Denver, Colorado, May 2, 2024—Antero Midstream Corporation (NYSE: AM) (“Antero Midstream” or the “Company”) today announced a bolt-on acquisition of gathering and compression assets in the Marcellus Shale for $70 million from Summit Midstream Partners LP (NYSE: SMLP). The transa

May 2, 2024 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 2, 2024 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Commissio

May 1, 2024 8-K

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 1, 2024 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Commissio

April 25, 2024 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No.

April 25, 2024 DEF 14A

NOTICE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant Filed by a Party other than the Registrant Check the appropriate box: Preliminary Proxy Statement Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) Definitive Prox

April 24, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): April 24, 2024 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Commis

April 24, 2024 10-Q

PartnersCapitalAbstract UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents PartnersCapitalAbstract UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

April 24, 2024 EX-99.1

Antero Midstream Announces First Quarter 2024 Financial and Operating Results

Exhibit 99.1 Antero Midstream Announces First Quarter 2024 Financial and Operating Results Denver, Colorado, April 24, 2024—Antero Midstream Corporation (NYSE: AM) (“Antero Midstream” or the “Company”) today announced its first quarter 2024 financial and operating results. The relevant unaudited condensed consolidated financial statements are included in Antero Midstream’s Quarterly Report on Form

February 26, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): February 26, 2024 ANTERO MIDSTREA

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): February 26, 2024 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Com

February 14, 2024 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File No. 001-38075 ANTERO MIDSTREAM CORPORATION (Exact name of r

February 14, 2024 EX-4.9

Description of Securities Registered Under Section 12 of the Securities Exchange Act of 1934, as amended.

Exhibit 4.9 DESCRIPTION OF CAPITAL STOCK The following summary of Antero Midstream Corporation’s (“we,” “us,” and “our”) common stock, par value $0.01 per share, does not purport to be complete and is subject to and qualified by reference to our Certificate of Incorporation and the Certificate of Amendment to our Certificate of Incorporation (together, the “Certificate of Incorporation”), our Amen

February 14, 2024 EX-99.1

Antero Midstream Announces Fourth Quarter 2023 Results, 2024 Guidance and $500 Million Share Repurchase Program

Exhibit 99.1 Antero Midstream Announces Fourth Quarter 2023 Results, 2024 Guidance and $500 Million Share Repurchase Program Denver, Colorado, February 14, 2024—Antero Midstream Corporation (NYSE: AM) (“Antero Midstream” or the “Company”) today announced its fourth quarter 2023 financial and operating results and 2024 guidance. In addition, Antero Midstream announced the authorization of a $500 mi

February 14, 2024 EX-21.1

Subsidiaries of Antero Midstream Corporation.

Exhibit 21.1 SUBSIDIARIES OF ANTERO MIDSTREAM CORPORATION Name of Subsidiary Jurisdiction of Organization Antero Midstream NewCo Inc. Delaware Antero IDR Holdings LLC Delaware Antero Midstream Partners GP LLC Delaware Antero Midstream Preferred Co LLC Delaware Antero Midstream Partners LP Delaware Antero Midstream LLC Delaware Antero Treatment LLC Delaware Antero Water LLC Delaware

February 14, 2024 EX-97.1

Antero Midstream Corporation Incentive Compensation Recovery Policy.

Exhibit 97.1 ANTERO MIDSTREAM CORPORATION INCENTIVE COMPENSATION RECOVERY POLICY This Incentive Compensation Recovery Policy (this “Policy”) was recommended for approval by the Compensation Committee (the “Committee”) of the Board of Directors (the “Board”) of Antero Midstream Corporation (the “Company”) and adopted by the Board, effective as of November 30, 2023 (the “Effective Date”). This Polic

February 14, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): February 14, 2024 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Com

February 13, 2024 SC 13G/A

AM / Antero Midstream Corporation / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 tv0297-anteromidstreamcorp.htm SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 4)* Name of issuer: Antero Midstream Corp Title of Class of Securities: Common Stock CUSIP Number: 03676B102 Date of Event Which Requires Filing of this Statement: December 29, 2023 Check the appropriate box to des

February 9, 2024 SC 13G/A

AM / Antero Midstream Corporation / Invesco Ltd. - SEC SCHEDULE 13G Passive Investment

SC 13G/A 1 SEC13GFiling.htm SEC SCHEDULE 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 6 )* Antero Midstream Corp (Name of Issuer) Common Stock (Title of Class of Securities) 03676B102 (CUSIP Number) December 29, 2023 (Date of Event Which Requires Filing of this Statement) Check the appropriate box

January 16, 2024 EX-99.1

Antero Midstream Announces Pricing of Upsized $600 Million Offering of Senior Notes

Exhibit 99.1 January 11, 2024 Antero Midstream Announces Pricing of Upsized $600 Million Offering of Senior Notes DENVER, Jan. 11, 2024 /PRNewswire/ - Antero Midstream Corporation (NYSE: AM) (“Antero Midstream”) announced today the pricing of its upsized private placement to eligible purchasers of $600 million in aggregate principal amount of 6.625% senior unsecured notes due 2032 at par (the “Not

January 16, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 11, 2024 ANTERO MIDSTREAM

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 11, 2024 ANTERO MIDSTREAM CORPORATION (Exact Name of Registrant as Specified in its Charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Comm

January 16, 2024 EX-4.1

Indenture, dated as of January 16, 2024, by and among Antero Midstream Partners LP, Antero Midstream Finance Corporation, the guarantors party thereto and Computer Trust Company, N.A., as trustee (incorporated by reference to Exhibit 4.1 to the Company’s Current Report on Form 8-K (Commission File No. 001-38075) filed on January 16, 2024).

Exhibit 4.1 Antero Midstream Partners LP, Antero Midstream Finance CorpORATION and each of the Guarantors PARTY HERETO INDENTURE Dated as of January 16, 2024 COMPUTERSHARE TRUST COMPANY, N.A. Trustee 6.625% SENIOR NOTES DUE 2032 TABLE OF CONTENTS Page ARTICLE 1 DEFINITIONS AND INCORPORATION BY REFERENCE Section 1.01 Definitions 1 Section 1.02 Other Definitions 26 Section 1.03 Trust Indenture Act 2

January 11, 2024 EX-99.1

Antero Midstream Announces Launch of $500 Million Offering of Senior Notes

Exhibit 99.1 Antero Midstream Announces Launch of $500 Million Offering of Senior Notes Denver, Colorado, January 11, 2024—Antero Midstream Corporation (NYSE: AM) (“Antero Midstream” or the “Company”) announced today that, subject to market conditions, it intends to offer $500 million in aggregate principal amount of senior unsecured notes due 2032 (the “Notes”) in a private placement to eligible

January 11, 2024 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 11, 2024 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Comm

November 6, 2023 8-K

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): November 6, 2023 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Comm

October 25, 2023 EX-99.1

Antero Midstream Announces Third Quarter 2023 Financial and Operating Results

Exhibit 99.1 Antero Midstream Announces Third Quarter 2023 Financial and Operating Results Denver, Colorado, October 25, 2023—Antero Midstream Corporation (NYSE: AM) (“Antero Midstream” or the “Company”) today announced its third quarter 2023 financial and operating results. The relevant unaudited condensed consolidated financial statements are included in Antero Midstream’s Quarterly Report on Fo

October 25, 2023 10-Q

PartnersCapitalAbstract UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents PartnersCapitalAbstract UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

October 25, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): October 25, 2023 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Comm

August 7, 2023 8-K

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 7, 2023 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Commis

July 26, 2023 EX-99.1

Antero Midstream Announces Second Quarter 2023 Financial and Operational Results

Exhibit 99.1 Antero Midstream Announces Second Quarter 2023 Financial and Operational Results Denver, Colorado, July 26, 2023—Antero Midstream Corporation (NYSE: AM) (“Antero Midstream” or the “Company”) today announced its second quarter 2023 financial and operational results. The relevant unaudited condensed consolidated financial statements are included in Antero Midstream’s Quarterly Report on

July 26, 2023 10-Q

PartnersCapitalAbstract UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents PartnersCapitalAbstract UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

July 26, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 26, 2023 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Commiss

June 8, 2023 8-K

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): June 6, 2023 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Commissi

June 8, 2023 EX-3.1

Certificate of Amendment to Certificate of Incorporation of Antero Midstream Corporation, dated June 8, 2023 (incorporated by reference to Exhibit 3.1 to the Company’s Current Report on Form 8-K (Commission File No. 001-38075) filed on June 8, 2023).

Exhibit 3.1 AMENDMENT TO THE CERTIFICATE OF INCORPORATION OF ANTERO MIDSTREAM CORPORATION Antero Midstream Corporation, (the “Corporation”) a corporation organized and existing under the General Corporation Law of the State of Delaware as set forth in Title 8 of the Delaware Code (the “DGCL”), hereby certifies as follows: 1. The Certificate of Incorporation of the Corporation (the “Certificate of

May 15, 2023 8-K

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 15, 2023 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Commissi

April 27, 2023 DEF 14A

PROXY STATEMENT PROXY SUMMARY ITEM ONE: ELECTION OF DIRECTORS DIRECTORS EXECUTIVE OFFICERS CORPORATE GOVERNANCE BOARD COMMITTEES COMPENSATION OF DIRECTORS ITEM TWO: RATIFICATION OF SELECTION OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM AUDIT MATT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant Filed by a Party other than the Registrant Check the appropriate box: Preliminary Proxy Statement Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) Definitive Prox

April 27, 2023 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant Filed by a Party other than the Registrant Check the appropriate box: Preliminary Proxy Statement Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) Definitive Prox

April 26, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): April 26, 2023 ANTERO MIDSTREAM C

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): April 26, 2023 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Commis

April 26, 2023 10-Q

PartnersCapitalAbstract UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents PartnersCapitalAbstract UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

April 26, 2023 EX-10

Form of Stock Award Grant Notice and Stock Award Agreement (Form for Non-Employee Directors) under the Antero Midstream Corporation Long-Term Incentive Plan (incorporated by reference to Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q (Commission File No. 001-38075) filed on April 26, 2023).

Exhibit 10.1 ANTERO MIDSTREAM CORPORATION LONG TERM INCENTIVE PLAN STOCK AWARD GRANT NOTICE Pursuant to the terms and conditions of the Antero Midstream Corporation Long Term Incentive Plan, as amended from time to time (the “Plan”), Antero Midstream Corporation (the “Company”) hereby grants to the individual listed below (“you” or the “Participant”) a Stock Award of the number of shares of Stock

April 26, 2023 EX-99.1

Antero Midstream Announces First Quarter 2023 Financial and Operational Results

Exhibit 99.1 Antero Midstream Announces First Quarter 2023 Financial and Operational Results Denver, Colorado, April 26, 2023—Antero Midstream Corporation (NYSE: AM) (“Antero Midstream” or the “Company”) today announced its first quarter 2023 financial and operational results. The relevant unaudited condensed consolidated financial statements are included in Antero Midstream’s Quarterly Report on

April 14, 2023 PRE 14A

PROXY STATEMENT PROXY SUMMARY ITEM ONE: ELECTION OF DIRECTORS DIRECTORS EXECUTIVE OFFICERS CORPORATE GOVERNANCE BOARD COMMITTEES COMPENSATION OF DIRECTORS ITEM TWO: RATIFICATION OF SELECTION OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM AUDIT MATT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant Filed by a Party other than the Registrant Check the appropriate box: Preliminary Proxy Statement Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) Definitive Prox

March 7, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): March 7, 2023 ANTERO MIDSTREAM CO

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): March 7, 2023 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Commiss

February 15, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): February 15, 2023 ANTERO MIDSTREA

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): February 15, 2023 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Com

February 15, 2023 EX-99.1

Antero Midstream Announces Fourth Quarter 2022 Results and 2023 Capital Budget and Guidance

Exhibit 99.1 Antero Midstream Announces Fourth Quarter 2022 Results and 2023 Capital Budget and Guidance Denver, Colorado, February 15, 2023—Antero Midstream Corporation (NYSE: AM) (“Antero Midstream” or the “Company”) today announced its fourth quarter 2022 financial and operational results and 2023 capital budget and guidance. The relevant consolidated financial statements are included in Antero

February 15, 2023 EX-3.3

Amended and Restated Bylaws of Antero Midstream Corporation, dated February 14, 2023 (incorporated by reference to Exhibit 3.3 to the Company’s Annual Report on Form 10-K (Commission File No. 001-38075) filed on February 15, 2023).

Exhibit 3.3 AMENDED AND RESTATED BYLAWS OF ANTERO MIDSTREAM CORPORATION Incorporated under the Laws of the State of Delaware Date of Adoption: February 14, 2023 ARTICLE I OFFICES AND RECORDS SECTION 1.1. Registered Office. The registered office of the Corporation in the State of Delaware shall be located at 1209 Orange Street, City of Wilmington, County of New Castle, and the name of the Corporati

February 15, 2023 EX-21.1

Subsidiaries of Antero Midstream Corporation.

Exhibit 21.1 SUBSIDIARIES OF ANTERO MIDSTREAM CORPORATION Name of Subsidiary Jurisdiction of Organization Antero Midstream NewCo Inc. Delaware Antero IDR Holdings LLC Delaware Antero Midstream Partners GP LLC Delaware Antero Midstream Preferred Co LLC Delaware Antero Midstream Partners LP Delaware Antero Midstream LLC Delaware Antero Treatment LLC Delaware Antero Water LLC Delaware

February 15, 2023 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File No. 001-38075 ANTERO MIDSTREAM CORPORATION (Exact name of r

February 9, 2023 SC 13G/A

AM / Antero Midstream Partners LP / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 3)* Name of issuer: Antero Midstream Corp. Title of Class of Securities: Common Stock CUSIP Number: 03676B102 Date of Event Which Requires Filing of this Statement: December 30, 2022 Check the appropriate box to designate the rule pursuant to which this Schedule is filed

February 3, 2023 SC 13G/A

AM / Antero Midstream Partners LP / Invesco Ltd. - SEC SCHEDULE 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 5 )* Antero Midstream Corp (Name of Issuer) Common Stock (Title of Class of Securities) 03676B102 (CUSIP Number) December 30, 2022 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this

January 4, 2023 8-K

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): January 3, 2023 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Commi

December 6, 2022 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): December 5, 2022 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Comm

December 1, 2022 8-K

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): December 1, 2022 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Comm

November 1, 2022 8-K

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): November 1, 2022 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Comm

October 26, 2022 10-Q

PartnersCapitalAbstract UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents PartnersCapitalAbstract UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

October 26, 2022 EX-99.1

Antero Midstream Announces Third Quarter 2022 Financial and Operational Results

Exhibit 99.1 Antero Midstream Announces Third Quarter 2022 Financial and Operational Results Denver, Colorado, October 26, 2022—Antero Midstream Corporation (NYSE: AM) (“Antero Midstream” or the “Company”) today announced its third quarter 2022 financial and operational results. The relevant unaudited condensed consolidated financial statements are included in Antero Midstream’s Quarterly Report o

October 26, 2022 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): October 26, 2022 ANTERO MIDSTREAM

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): October 26, 2022 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Comm

September 12, 2022 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): September 12, 2022 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Co

September 12, 2022 EX-99.1

Antero Midstream Agrees to Acquire Bolt-On Marcellus Gathering and Compression System

Exhibit 99.1 Antero Midstream Agrees to Acquire Bolt-On Marcellus Gathering and Compression System Denver, Colorado, September 12, 2022?Antero Midstream Corporation (NYSE: AM) (?Antero Midstream? or the ?Company?) today announced that it has entered into a definitive agreement to acquire Marcellus Shale gas gathering and compression assets from Crestwood Equity Partners LP (NYSE: CEQP) for $205 mi

August 23, 2022 8-K

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 23, 2022 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Commi

July 27, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 27, 2022 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Commiss

July 27, 2022 EX-10.1

Form of Performance Share Unit Grant Notice and Performance Share Unit Agreement under the Antero Midstream Corporation Long Term Incentive Plan (incorporated by reference to Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q (Commission File No. 001-38075) filed on July 27, 2022).

? Exhibit 10.1 ? ANTERO MIDSTREAM CORPORATION LONG TERM INCENTIVE PLAN PERFORMANCE SHARE UNIT GRANT NOTICE Pursuant to the terms and conditions of the Antero Midstream Corporation Long Term Incentive Plan, as amended from time to time (the ?Plan?), Antero Midstream Corporation (the ?Company?) hereby grants to the individual listed below (?you? or the ?Participant?) an award (this ?Award?) of Perfo

July 27, 2022 10-Q

PartnersCapitalAbstract UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents PartnersCapitalAbstract ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

July 27, 2022 EX-99.1

Antero Midstream Announces Second Quarter 2022 Financial and Operational Results

Exhibit 99.1 Antero Midstream Announces Second Quarter 2022 Financial and Operational Results Denver, Colorado, July 27, 2022?Antero Midstream Corporation (NYSE: AM) (?Antero Midstream? or the ?Company?) today announced its second quarter 2022 financial and operational results. The relevant unaudited condensed consolidated financial statements are included in Antero Midstream?s Quarterly Report on

June 8, 2022 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): June 7, 2022 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Commissi

May 3, 2022 8-K

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 3, 2022 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Commissio

April 28, 2022 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No.

April 28, 2022 DEF 14A

PROXY STATEMENT PROXY SUMMARY ITEM ONE: ELECTION OF DIRECTORS DIRECTORS EXECUTIVE OFFICERS CORPORATE GOVERNANCE BOARD COMMITTEES COMPENSATION OF DIRECTORS ITEM TWO: RATIFICATION OF SELECTION OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM AUDIT MATT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant Filed by a Party other than the Registrant Check the appropriate box: Preliminary Proxy Statement Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) Definitive Prox

April 27, 2022 EX-99.1

Antero Midstream Announces First Quarter 2022 Financial and Operational Results

Exhibit 99.1 Antero Midstream Announces First Quarter 2022 Financial and Operational Results Denver, Colorado, April 27, 2022?Antero Midstream Corporation (NYSE: AM) (?Antero Midstream? or the ?Company?) today announced its first quarter 2022 financial and operational results. The relevant unaudited condensed consolidated financial statements are included in Antero Midstream?s Quarterly Report on

April 27, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): April 27, 2022 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Commis

April 27, 2022 10-Q

PartnersCapitalAbstract UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents PartnersCapitalAbstract ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

March 22, 2022 8-K

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): March 22, 2022 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Commis

March 17, 2022 S-3ASR

As filed with the Securities and Exchange Commission on March 17, 2022

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on March 17, 2022 Registration No.

March 17, 2022 EX-25.2

Form T-1 Statement of Eligibility and Qualification respecting the Subordinated Indenture.

Exhibit 25.2 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE CHECK IF AN APPLICATION TO DETERMINE ELIGIBILITY OF A TRUSTEE PURSUANT TO SECTION 305(b)(2) [] Computershare Trust Company, National Association (Exact name of trustee as specified in its charter)

March 17, 2022 EX-4.3

Form of Subordinated Debt Securities (included in Exhibit 4.3).

Exhibit 4.3 ANTERO MIDSTREAM CORPORATION to COMPUTERSHARE TRUST COMPANY, N.A. Trustee INDENTURE Dated as of [???????????????] [?????], 20[?????] SUBORDINATED DEBT SECURITIES ANTERO MIDSTREAM CORPORATION Certain Sections of this Indenture relating to Sections 310 through 318, inclusive, of the Trust Indenture Act of 1939, as amended Trust Indenture Act Section Indenture Section Section 310(a)(1) 60

March 17, 2022 EX-4.2

Form of Senior Debt Securities (included in Exhibit 4.2).

Exhibit 4.2 ANTERO MIDSTREAM CORPORATION to COMPUTERSHARE TRUST COMPANY, N.A. Trustee INDENTURE Dated as of [?????????????? ] [???? ], 20[???? ] SENIOR DEBT SECURITIES ANTERO MIDSTREAM CORPORATION Certain Sections of this Indenture relating to Sections 310 through 318, inclusive, of the Trust Indenture Act of 1939, as amended Trust Indenture Act Section Indenture Section Section 310(a)(1) 609 (a)(

March 17, 2022 EX-FILING FEES

Filing Fee Table

EX-FILING FEES 8 tm228344d2ex-filingfees.htm EX-FILING FEES Exhibit 107 Calculation of Filing Fee Tables Form S-3 (Form Type) Antero Midstream Corporation (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Off

March 17, 2022 EX-25.1

Form T-1 Statement of Eligibility and Qualification respecting the Senior Indenture.

Exhibit 25.1 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE CHECK IF AN APPLICATION TO DETERMINE ELIGIBILITY OF A TRUSTEE PURSUANT TO SECTION 305(b)(2) [] Computershare Trust Company, National Association (Exact name of trustee as specified in its charter)

February 28, 2022 8-K

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): February 28, 2022 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Com

February 16, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): February 16, 2022 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Com

February 16, 2022 EX-21.1

Subsidiaries of Antero Midstream Corporation.

Exhibit 21.1 ? ? ? ? ? SUBSIDIARIES OF ANTERO MIDSTREAM CORPORATION ? ? ? ? ? Name of Subsidiary ? Jurisdiction of Organization ? Antero Midstream NewCo Inc. ? Delaware ? Antero IDR Holdings LLC ? Delaware ? Antero Midstream Partners GP LLC ? Delaware ? Antero Midstream Preferred Co LLC ? Delaware ? Antero Midstream Partners LP ? Delaware ? Antero Midstream LLC ? Delaware ? Antero Treatment LLC ?

February 16, 2022 EX-99.1

Antero Midstream Announces Fourth Quarter 2021 Financial Results and 2022 Capital Budget and Guidance

Exhibit 99.1 Antero Midstream Announces Fourth Quarter 2021 Financial Results and 2022 Capital Budget and Guidance Denver, Colorado, February 16, 2022?Antero Midstream Corporation (NYSE: AM) (?Antero Midstream? or the ?Company?) today announced its fourth quarter 2021 financial and operational results and 2022 capital budget and guidance. Fourth Quarter 2021 Earnings Highlights: ? Net Income was $

February 16, 2022 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

Table of Contents ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

February 9, 2022 SC 13G/A

AM / Antero Midstream Partners LP / Invesco Ltd. - SEC SCHEDULE 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 4 )* Antero Midstream Corp (Name of Issuer) Common Stock (Title of Class of Securities) 03676B102 (CUSIP Number) December 31, 2021 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this

February 9, 2022 SC 13G/A

AM / Antero Midstream Partners LP / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 2)* Name of issuer: Antero Midstream Corp. Title of Class of Securities: Common Stock CUSIP Number: 03676B102 Date of Event Which Requires Filing of this Statement: December 31, 2021 Check the appropriate box to designate the rule pursuant to which this Schedule is filed

January 4, 2022 8-K

Regulation FD Disclosure, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): December 31, 2021 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Com

November 2, 2021 8-K

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): November 2, 2021 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Comm

October 27, 2021 10-Q

PartnersCapitalAbstract UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents PartnersCapitalAbstract ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

October 27, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): October 27, 2021 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Comm

October 27, 2021 EX-10.1

Second Amended and Restated Credit Facility, dated as of October 26, 2021, by and among Antero Midstream Partners LP, as Borrower, the lenders party thereto and Wells Fargo Bank, National Association., as Administrative Agent (incorporated by reference to Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q (Commission File No. 001-38075) filed on October 27, 2021).

Exhibit 10.1 Execution Version ? SECOND AMENDED AND RESTATED CREDIT AGREEMENT Dated as of October 26, 2021 among ANTERO MIDSTREAM PARTNERS LP, as the Borrower, WELLS FARGO BANK, NATIONAL ASSOCIATION, as Administrative Agent, Swingline Lender and an L/C Issuer, and The Other Lenders Party Hereto WELLS FARGO SECURITIES, LLC, as Joint Lead Arranger and Sole Bookrunner and JPMORGAN CHASE BANK, N.A., a

October 27, 2021 EX-99.1

Antero Midstream Announces Third Quarter 2021 Financial and Operational Results

Exhibit 99.1 Antero Midstream Announces Third Quarter 2021 Financial and Operational Results Denver, Colorado, October 27, 2021?Antero Midstream Corporation (NYSE: AM) (?Antero Midstream? or the ?Company?) today announced its third quarter 2021 financial and operational results. The relevant unaudited condensed consolidated financial statements are included in Antero Midstream?s Quarterly Report o

August 3, 2021 8-K

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 3, 2021 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Commis

July 28, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 28, 2021 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Commiss

July 28, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents ? ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

July 28, 2021 EX-99.1

Antero Midstream Announces Second Quarter 2021 Financial and Operational Results

Exhibit 99.1 Antero Midstream Announces Second Quarter 2021 Financial and Operational Results Denver, Colorado, July 28, 2021?Antero Midstream Corporation (NYSE: AM) (?Antero Midstream? or the ?Company?) today announced its second quarter 2021 financial and operational results. The relevant consolidated financial statements are included in Antero Midstream?s Quarterly Report on Form 10-Q for the q

June 22, 2021 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 16, 2021 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or other jurisdiction of incorporation) (Commiss

June 8, 2021 EX-99.1

Antero Midstream Announces Pricing of Upsized $750 Million Offering of Senior Notes

Exhibit 99.1 Antero Midstream Announces Pricing of Upsized $750 Million Offering of Senior Notes Denver, Colorado, May 24, 2021?Antero Midstream Corporation (NYSE: AM) (?Antero Midstream? or the ?Company?) announced today the pricing of its private placement to eligible purchasers of $750 million in aggregate principal amount of 5.375% senior unsecured notes due 2029 at par (the ?Notes?). The offe

June 8, 2021 8-K

Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 8, 2021 ANTERO MIDSTREAM CORPORATION (Exact Name of Registrant as Specified in its Charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Commissi

June 8, 2021 EX-4.1

guarantors party thereto and Wells Fargo Bank, National Association, as trustee (incorporated by reference to Exhibit 4.1

Exhibit 4.1 Execution Version Antero Midstream Partners LP, Antero Midstream Finance CorpORATION and each of the Guarantors PARTY HERETO INDENTURE Dated as of June 8, 2021 WELLS FARGO BANK, NATIONAL ASSOCIATION Trustee 5.375% SENIOR NOTES DUE 2029 TABLE OF CONTENTS Page ARTICLE 1 DEFINITIONS AND INCORPORATION BY REFERENCE Section 1.01 Definitions 1 Section 1.02 Other Definitions 26 Section 1.03 Tr

May 24, 2021 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 24, 2021 ANTERO MIDSTREAM CORPORATION (Exact Name of Registrant as Specified in its Charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Commissi

May 24, 2021 EX-99.1

Antero Midstream Announces Launch of $650 Million Offering of Senior Notes

Exhibit 99.1 Antero Midstream Announces Launch of $650 Million Offering of Senior Notes Denver, Colorado, May 24, 2021?Antero Midstream Corporation (NYSE: AM) (?Antero Midstream? or the ?Company?) announced today that, subject to market conditions, it intends to offer $650 million in aggregate principal amount of senior unsecured notes due 2029 (the ?Notes?) in a private placement to eligible purc

May 19, 2021 8-K

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 19, 2021 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Commissi

May 3, 2021 8-K

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 3, 2021 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Commissio

April 28, 2021 DEF 14A

our Definitive Proxy Statement on Schedule 14A, filed with the SEC on April 28, 2021;

DEF 14A 1 lam2021def14a.htm ANTERO MIDSTREAM CORP - DEF 14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant Filed by a Party other than the Registrant Check the appropriate box: Preliminary Proxy Statement Confidential, for Use of the Commis

April 28, 2021 EX-99.1

Antero Midstream Announces First Quarter 2021 Financial and Operational Results

Exhibit 99.1 Antero Midstream Announces First Quarter 2021 Financial and Operational Results Denver, Colorado, April 28, 2021?Antero Midstream Corporation (NYSE: AM) (?Antero Midstream? or the ?Company?) today announced its first quarter 2021 financial and operational results. The relevant consolidated financial statements are included in Antero Midstream?s Quarterly Report on Form 10-Q for the qu

April 28, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition - FORM 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): April 28, 2021 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Commis

April 28, 2021 DEFA14A

- ANTERO MIDSTREAM CORP - DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant Filed by a Party other than the Registrant Check the appropriate box: Preliminary Proxy Statement Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) Definitive Prox

April 28, 2021 10-Q

Quarterly Report - 10-Q

Table of Contents ? ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

April 9, 2021 EX-99.1

Antero Resources and Antero Midstream Announce Retirement of Co-Founder Glen Warren

Exhibit 99.1 Antero Resources and Antero Midstream Announce Retirement of Co-Founder Glen Warren Denver, Colorado, April 8, 2021—Antero Resources Corporation (NYSE: AR) (“Antero Resources”) and Antero Midstream Corporation (NYSE: AM) (“Antero Midstream”) today announced that Glen Warren will retire as President and Chief Financial Officer of Antero Resources and President of Antero Midstream, effe

April 9, 2021 EX-99.2

Antero Resources and Antero Midstream Announce New Executive Management Responsibilities

Exhibit 99.2 Antero Resources and Antero Midstream Announce New Executive Management Responsibilities Denver, Colorado, April 8, 2021?Antero Resources Corporation (NYSE: AR) (?Antero Resources?) and Antero Midstream Corporation (NYSE: AM) (?Antero Midstream?) today announced new responsibilities for certain members of their management teams upon the effectiveness of Glen C. Warren, Jr. retirement

April 9, 2021 8-K

Regulation FD Disclosure, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): April 8, 2021 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Commiss

February 17, 2021 EX-21.1

Subsidiaries of Antero Midstream Corporation.

Exhibit 21.1 ? ? ? ? ? SUBSIDIARIES OF ANTERO MIDSTREAM CORPORATION ? ? ? ? ? Name of Subsidiary ? Jurisdiction of Organization ? Antero Midstream NewCo Inc. ? Delaware ? Antero IDR Holdings LLC ? Delaware ? Antero Midstream Partners GP LLC ? Delaware ? Antero Midstream Preferred Co LLC ? Delaware ? Antero Midstream Partners LP ? Delaware ? Antero Midstream LLC ? Delaware ? Antero Treatment LLC ?

February 17, 2021 EX-99.1

Antero Midstream Announces Fourth Quarter 2020 Financial Results and 2021 Capital Budget and Guidance

Exhibit 99.1 Antero Midstream Announces Fourth Quarter 2020 Financial Results and 2021 Capital Budget and Guidance Denver, Colorado, February 17, 2021?Antero Midstream Corporation (NYSE: AM) (?Antero Midstream? or the ?Company?) today announced its fourth quarter 2020 financial and operational results, 2021 capital budget and guidance based on Antero Resources recently announced 2021 development p

February 17, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): February 17, 2021 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Com

February 17, 2021 EX-22.1

List of Guarantor and Issuer Subsidiaries (incorporated by reference to Exhibit 22.1 to the Company’s Annual

Exhibit 22.1 List of Guarantor and Issuer Subsidiaries The following entities, as of December 31, 2020, were guarantors of the 5.375% senior notes due 2024 issued by Antero Midstream Partners LP and Antero Midstream Finance Corporation. ? Name of Entity Jurisdiction of Organization or Formation 2024 Notes Antero Midstream Corporation ? Delaware ? Guarantor Antero Midstream Finance Corporation ? De

February 17, 2021 10-K

Annual Report - 10-K

Table of Contents ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

February 12, 2021 SC 13G/A

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G* (Rule 13d-102) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2 (AMENDMENT NO. ONE )*

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G* (Rule 13d-102) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2 (AMENDMENT NO. ONE )* Antero Midstream Corporation (Name of Issuer) Common Stock (Title of Class of Securities) 03676B102 (CUSIP Number) December 31, 2020 (Date of Event Whi

February 10, 2021 SC 13G/A

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 1)*

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 1)* Name of issuer: Antero Midstream Corp. Title of Class of Securities: Common Stock CUSIP Number: 03676B102 Date of Event Which Requires Filing of this Statement: December 31, 2020 Check the appropriate box to designate the rule pursuant to which this Schedule is filed

February 9, 2021 SC 13G/A

SCHEDULE 13G

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 3 )* Antero Midstream Corp (Name of Issuer) Common Stock (Title of Class of Securities) 03676B102 (CUSIP Number) December 31, 2020 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this

December 9, 2020 8-K

Regulation FD Disclosure - FORM 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): December 9, 2020 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Comm

November 10, 2020 EX-4.1

Indenture, dated as of November 10, 2020, by and among Antero Midstream Partners LP, Antero Midstream Finance Corporation, the guarantors party thereto and Wells Fargo Bank, National Association, as trustee (incorporated by reference to Exhibit 4.1 to the Company’s Current Report on Form 8-K (Commission File No. 001-38075) filed on November 10, 2020)

Exhibit 4.1 Antero Midstream Partners LP, Antero Midstream Finance CorpORATION and each of the Guarantors PARTY HERETO INDENTURE Dated as of November 10, 2020 WELLS FARGO BANK, NATIONAL ASSOCIATION Trustee 7.875% SENIOR NOTES DUE 2026 TABLE OF CONTENTS Page ARTICLE 1 DEFINITIONS AND INCORPORATION BY REFERENCE Section 1.01 Definitions 1 Section 1.02 Other Definitions 25 Section 1.03 Trust Indenture

November 10, 2020 8-K

Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 10, 2020 ANTERO MIDSTREAM CORPORATION (Exact Name of Registrant as Specified in its Charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Com

November 5, 2020 EX-99.1

Antero Midstream Announces Launch of $400 Million Offering of Senior Notes

Exhibit 99.1 Antero Midstream Announces Launch of $400 Million Offering of Senior Notes Denver, Colorado, November 5, 2020—Antero Midstream Corporation (NYSE: AM) (“Antero Midstream”) announced today that Antero Midstream Partners LP (“Antero Midstream Partners”), an indirect, wholly owned subsidiary of Antero Midstream, intends to offer $400 million in aggregate principal amount of senior unsecur

November 5, 2020 8-K

Financial Statements and Exhibits, Other Events - FORM 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 5, 2020 ANTERO MIDSTREAM CORPORATION (Exact Name of Registrant as Specified in its Charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Comm

October 28, 2020 EX-99.1

Antero Midstream Reports Third Quarter 2020 Results and Increases Free Cash Flow Guidance

Exhibit 99.1 Antero Midstream Reports Third Quarter 2020 Results and Increases Free Cash Flow Guidance Denver, Colorado, October 28, 2020—Antero Midstream Corporation (NYSE: AM) (“Antero Midstream” or the “Company”) today released its third quarter 2020 financial and operating results. In addition, Antero Midstream announced an increase in its Free Cash Flow Guidance. The relevant consolidated fin

October 28, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition - FORM 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): October 28, 2020 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Comm

October 28, 2020 EX-10.1

Form of Retention Award Grant Notice and Retention Award Agreement under the Antero Midstream Corporation Long Term Incentive Plan (Employees) (incorporated by reference to Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q (Commission File No. 001-38075) filed on October 28, 2020).

Exhibit 10.1 ANTERO MIDSTREAM CORPORATION LONG TERM INCENTIVE PLAN RETENTION AWARD GRANT NOTICE Pursuant to the terms and conditions of the Antero Midstream Corporation Long Term Incentive Plan, as amended from time to time (the “Plan”), Antero Midstream Corporation (the “Company”) hereby grants to the individual listed below (“you” or the “Participant”) the Cash Award (the “Retention Award”) set

October 28, 2020 EX-99.1

Unaudited pro forma condensed combined financial statements of Antero Midstream Corporation.

EXHIBIT 99.1 UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL STATEMENTS Set forth below are the unaudited pro forma condensed combined statements of operations and comprehensive income (loss) of Antero Midstream Corporation for the nine months ended September 30, 2019. The unaudited pro forma condensed combined financial statements for the nine months ended September 30, 2019 have been derived fr

October 28, 2020 10-Q

Quarterly Report - 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2020 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file numbe

August 25, 2020 8-K

Regulation FD Disclosure - FORM 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 25, 2020 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Commi

August 12, 2020 8-K

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 12, 2020 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Commi

July 30, 2020 EX-99.1

Unaudited pro forma condensed combined financial statements of Antero Midstream Corporation.

EXHIBIT 99.1 UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL STATEMENTS Set forth below are the unaudited pro forma condensed combined statements of operations and comprehensive income of Antero Midstream Corporation for the six months ended June 30, 2019. The unaudited pro forma condensed combined financial statements for the six months ended June 30, 2019 have been derived from (i) the unaudite

July 30, 2020 10-Q

Quarterly Report - 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2020 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 00

July 29, 2020 EX-99.1

Antero Midstream Reports Second Quarter 2020 Results and Announces Updated 2020 Capital Budget & Guidance

Exhibit 99.1 Antero Midstream Reports Second Quarter 2020 Results and Announces Updated 2020 Capital Budget & Guidance Denver, Colorado, July 29, 2020—Antero Midstream Corporation (NYSE: AM) (“Antero Midstream” or the “Company”) today released its second quarter 2020 financial and operating results. In addition, Antero Midstream announced a reduction of its 2020 capital budget and increase in its

July 29, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 29, 2020 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Commiss

June 19, 2020 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 17, 2020 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or other jurisdiction of incorporation) (Commiss

June 4, 2020 DEFA14A

- DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ¨ Defin

May 12, 2020 8-K

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 12, 2020 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Commissi

May 11, 2020 SC 13G/A

AM / Antero Midstream Partners LP / Invesco Ltd. - SEC SCHEDULE 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 2 )* Antero Midstream Corp (Name of Issuer) Common Stock (Title of Class of Securities) 03676B102 (CUSIP Number) April 30, 2020 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Sch

May 6, 2020 SC 13D/A

AMGP / Antero Midstream GP LP / RADY PAUL M - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 5) Antero Midstream Corporation (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) 03676B 102 (CUSIP Number) Paul M. Rady Glen C. Warren, Jr. Antero Subsidiary Holdings LLC 1615 Wynkoop Street Denver, Colorado 80202 (303)

May 6, 2020 SC 13D/A

AMGP / Antero Midstream GP LP / ANTERO RESOURCES Corp - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 5) Antero Midstream Corporation (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) 03676B 102 (CUSIP Number) Glen C. Warren, Jr. 1615 Wynkoop Street Denver, Colorado 80202 (303) 357-7310 with a copy to: Douglas E. McWilli

April 29, 2020 10-Q

Quarterly Report - 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2020 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 0

April 29, 2020 EX-99.1

Antero Midstream Reports First Quarter 2020 Results & Announces Updated 2020 Capital Budget & Guidance

Exhibit 99.1 Antero Midstream Reports First Quarter 2020 Results & Announces Updated 2020 Capital Budget & Guidance Denver, Colorado, April 29, 2020—Antero Midstream Corporation (NYSE: AM) (“Antero Midstream” or the “Company”) today released its first quarter 2020 financial and operating results. In addition, Antero Midstream announced a revised 2020 capital budget and guidance. The relevant conso

April 29, 2020 EX-99.1

Unaudited pro forma condensed combined financial statements of Antero Midstream Corporation.

EXHIBIT 99.1 UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL STATEMENTS Set forth below are the unaudited pro forma condensed combined statements of operations and comprehensive income of Antero Midstream Corporation for the three months ended March 31, 2019. The unaudited pro forma condensed combined financial statements for the three months ended March 31, 2019 have been derived from (i) the un

April 29, 2020 EX-10.1

Form of Retention Award Grant Notice and Retention Award Agreement under the Antero Midstream Corporation Long Term Incentive Plan (incorporated by reference to Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q (Commission File No. 001-38075) filed on April 29, 2020).

Exhibit 10.1 ANTERO MIDSTREAM CORPORATION LONG TERM INCENTIVE PLAN RETENTION AWARD GRANT NOTICE Pursuant to the terms and conditions of the Antero Midstream Corporation Long Term Incentive Plan, as amended from time to time (the “Plan”), Antero Midstream Corporation (the “Company”) hereby grants to the individual listed below (“you” or the “Participant”) the Cash Award (the “Retention Award”) set

April 29, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): April 29, 2020 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Commis

April 27, 2020 DEFA14A

- ANTERO MIDSTREAM CORP - DEFA14A

ANTERO MIDSTREAM CORPORATION - DEF A 14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

April 27, 2020 DEF 14A

- ANTERO MIDSTREAM CORP - DEFA14A

ANTERO MIDSTREAM CORPORATION - DEF 14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

March 30, 2020 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): March 26, 2020 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Commis

March 25, 2020 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): March 23, 2020 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Commis

March 24, 2020 8-K

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): March 24, 2020 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Commis

February 12, 2020 10-K

Annual Report - 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2019 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File No. 001-38075 ANTERO MIDSTREAM CORPORATION (Exact name of r

February 12, 2020 EX-99.1

Antero Midstream Reports Fourth Quarter and Full Year 2019 Results and Announces 2020 Capital Budget and Guidance

Exhibit 99.1 Antero Midstream Reports Fourth Quarter and Full Year 2019 Results and Announces 2020 Capital Budget and Guidance Denver, Colorado, February 12, 2020—Antero Midstream Corporation (NYSE: AM) (“Antero Midstream” or the “Company”) today released its fourth quarter and full year 2019 financial and operating results. In addition, Antero Midstream announced its 2020 capital budget and guida

February 12, 2020 EX-10.10

Joinder Agreement, dated as of November 19, 2019, by and among the Lenders party thereto, Antero Midstream Partners LP, and Wells Fargo Bank, National Association, as Administrative Agent (incorporated by reference to Exhibit 10.10 to the Company’s Annual Report on Form 10-K (Commission File No. 001-38075) filed on February 12, 2020).

Exhibit 10.10 Execution Version JOINDER AGREEMENT THIS JOINDER AGREEMENT, dated as of November 19, 2019 (this “Agreement”), by and among the institutions set forth on Schedule 1 hereto (each an “Incremental Lender” and collectively the “Incremental Lenders”), ANTERO MIDSTREAM PARTNERS LP, a Delaware limited partnership (the “Borrower”), and WELLS FARGO BANK, NATIONAL ASSOCIATION, as Administrative

February 12, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): February 12, 2020 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Com

February 12, 2020 EX-99.1

Unaudited pro forma condensed combined financial statements of Antero Midstream Corporation.

EXHIBIT 99.1 UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL STATEMENTS Set forth below are the unaudited pro forma condensed combined statements of operations and comprehensive income of Antero Midstream Corporation for the years ended December 31, 2018 and 2019. The unaudited pro forma condensed combined financial statements for the year ended December 31, 2018 have been derived from (i) the co

February 12, 2020 EX-10.3

Second Amended and Restated Services Agreement, effective as of March 13, 2019, by and among Antero Midstream Partners LP, Antero Midstream Corporation, Antero Midstream Partners GP LLC and Antero Resources Corporation (incorporated by reference to Exhibit 10.3 to the Company’s Annual Report on Form 10-K (Commission File No. 001-38075) filed on February 12, 2020).

Exhibit 10.3 Execution Version SECOND AMENDED AND RESTATED SERVICES AGREEMENT This SECOND AMENDED AND RESTATED SERVICES AGREEMENT (this “Agreement”) dated as of December 31, 2019, and effective as of March 13, 2019, is entered into by and among Antero Midstream Partners LP, a Delaware limited partnership (the “Partnership”), Antero Midstream Corporation, a Delaware corporation (the “Company”), Ant

February 12, 2020 EX-10.2

Amended and Restated Secondment Agreement, effective as of March 13, 2019, by and between Antero Midstream Corporation, Antero Midstream Partners LP, Antero Midstream Partners GP LLC, Antero Midstream LLC, Antero Water LLC, Antero Treatment LLC and Antero Resources Corporation (incorporated by reference to Exhibit 10.2 to the Company’s Annual Report on Form 10-K (Commission File No. 001-38075) filed on February 12, 2020).

Exhibit 10.2 Execution Version AMENDED AND RESTATED SECONDMENT AGREEMENT by and among ANTERO MIDSTREAM CORPORATION ANTERO MIDSTREAM PARTNERS LP ANTERO MIDSTREAM PARTNERS GP LLC ANTERO MIDSTREAM LLC ANTERO WATER LLC ANTERO TREATMENT LLC and ANTERO RESOURCES CORPORATION December 31, 2019 TABLE OF CONTENTS PAGE ARTICLE I DEFINITIONS, CONSTRUCTION 2 1.1 Definitions 2 1.2 Construction 4 ARTICLE II SECO

February 12, 2020 EX-4.11

Description of Securities Registered Under Section 12 of the Securities Exchange Act of 1934, as amended (incorporated by reference to Exhibit 4.11 to the Company’s Annual Report on Form 10-K (Commission File No. 001-38075) filed on February 12, 2020).

Exhibit 4.11 DESCRIPTION OF CAPITAL STOCK The following summary of Antero Midstream Corporation’s (“we,” “us,” and “our”) common stock, par value $0.01 per share, does not purport to be complete and is subject to and qualified by reference to our Amended and Restated Certificate of Incorporation (the “Certificate of Incorporation”), our Amended and Restated Bylaws (the “Bylaws”), our certificate o

February 12, 2020 EX-21.1

Subsidiaries of Antero Midstream Corporation.

Exhibit 21.1 SUBSIDIARIES OF ANTERO MIDSTREAM CORPORATION Name of Subsidiary Jurisdiction of Organization Antero Midstream NewCo Inc. Delaware Antero IDR Holdings LLC Delaware Antero Midstream Partners GP LLC Delaware Antero Midstream Preferred Co LLC Delaware Antero Midstream Partners LP Delaware Antero Midstream LLC Delaware Antero Treatment LLC Delaware Antero Water LLC Delaware

February 12, 2020 EX-10.1

Second Amended and Restated Gathering and Compression Agreement, dated as of December 8, 2019, by and between Antero Resources Corporation and Antero Midstream LLC.

Exhibit 10.1 Execution Version SECOND AMENDED AND RESTATED GATHERING AND COMPRESSION AGREEMENT BY AND BETWEEN ANTERO RESOURCES CORPORATION AND ANTERO MIDSTREAM LLC DATED AS OF DECEMBER 8, 2019 TABLE OF CONTENTS ARTICLE 1 DEFINITIONS 1 ARTICLE 2 SHIPPER COMMITMENTS 9 Section 2.1 Shipper’s Dedication 9 Section 2.2 Conflicting Dedications 10 Section 2.3 Shipper’s Reservations 10 Section 2.4 Covenant

February 12, 2020 EX-4.3

First Supplemental Indenture, dated as of January 17, 2017, among Antero Midstream Partners LP, Antero Midstream Finance Corporation, Antero Midstream Corporation, each of the other parties identified therein and Wells Fargo Bank, National Association, a national banking association to the indenture governing the 2024 Notes.

Exhibits 4.3 Execution Version FIRST SUPPLEMENTAL INDENTURE This FIRST SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of January 17, 2017, is among Antero Midstream Partners LP, a Delaware limited partnership (the “Partnership”), Antero Midstream Finance Corporation, a Delaware corporation (“Finance Corp.” and, together with the Partnership, the “Issuers”), each of the other part

February 12, 2020 EX-10.9

Second Amendment, dated as of February 26, 2019, by and among the Lenders party thereto, Antero Midstream Partners LP, and Wells Fargo Bank, National Association, as Administrative Agent (incorporated by reference to Exhibit 10.9 to the Company’s Annual Report on Form 10-K (Commission File No. 001-38075) filed on February 12, 2020).

Exhibit 10.9 Execution Version SECOND AMENDMENT THIS SECOND AMENDMENT, dated as of February 26, 2019 (this “Agreement”), by and among the Lenders party hereto, ANTERO MIDSTREAM PARTNERS LP, a Delaware limited partnership (the “Borrower”), and WELLS FARGO BANK, NATIONAL ASSOCIATION, as Administrative Agent (the “Administrative Agent”), Swingline Lender and an L/C Issuer. RECITALS: WHEREAS, referenc

February 11, 2020 SC 13G/A

AM / Antero Midstream Partners LP / Invesco Ltd. - SEC SCHEDULE 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1 )* Antero Midstream Corp (Name of Issuer) Common Stock (Title of Class of Securities) 03676B102 (CUSIP Number) December 31, 2019 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this

February 11, 2020 SC 13G

AM / Antero Midstream Partners LP / VANGUARD GROUP INC - SCHEDULE 13G Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 Name of issuer: Antero Midstream Corp Title of Class of Securities: Common Stock CUSIP Number: 03676B102 Date of Event Which Requires Filing of this Statement: December 31, 2019 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒ Rule 13d-1(b) ☐ R

December 16, 2019 SC 13D/A

AMGP / Antero Midstream GP LP / Antero Subsidiary Holdings Llc - SCHEDULE 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 4) Antero Midstream Corporation (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) 03676B 102 (CUSIP Number) Antero Subsidiary Holdings LLC Paul M. Rady Glen C. Warren, Jr. 1615 Wynkoop Street Denver, Colorado 80202 (303)

December 16, 2019 EX-99.4

REPURCHASE AGREEMENT ANTERO MIDSTREAM CORPORATION ANTERO RESOURCES CORPORATION December 8, 2019 Repurchase Agreement

Exhibit 4 Execution Version REPURCHASE AGREEMENT BETWEEN ANTERO MIDSTREAM CORPORATION AND ANTERO RESOURCES CORPORATION December 8, 2019 Repurchase Agreement December 8, 2019 Ladies and Gentlemen: Introductory.

December 16, 2019 SC 13D/A

AMGP / Antero Midstream GP LP / ANTERO RESOURCES Corp - SC 13D/A Activist Investment

SC 13D/A 1 tm1925268d3sc13da.htm SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 4) Antero Midstream Corporation (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) 03676B 102 (CUSIP Number) Glen C. Warren, Jr. 1615 Wynkoop Street Denver, Colorado 80202 (303) 3

December 16, 2019 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): December 16, 2019 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Com

December 9, 2019 8-K

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): December 8, 2019 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Comm

December 3, 2019 8-K

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): December 3, 2019 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Comm

November 13, 2019 SC 13D/A

AMGP / Antero Midstream GP LP / Antero Subsidiary Holdings Llc - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 3) Antero Midstream Corporation (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) 03676B 102 (CUSIP Number) Antero Subsidiary Holdings LLC Paul M. Rady Glen C. Warren, Jr. 1615 Wynkoop Street Denver, Colorado 80202 (303)

November 13, 2019 SC 13D/A

AMGP / Antero Midstream GP LP / Warburg Pincus Private Equity X O&g, L.p. - SC 13D AMENDMENT NO. 6 Activist Investment

SC 13D Amendment No. 6 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 6)* Antero Midstream Corporation (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) 03676B 102 (CUSIP Number) c/o Warburg Pincus & Co. 450 Lexington Avenue New York, NY 10017 212-878-0600 With a cop

November 13, 2019 SC 13D/A

AMGP / Antero Midstream GP LP / Yorktown Energy Partners VII, L.P. - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 3)* Antero Midstream Corporation (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) 03676B 102 (CUSIP Number) c/o Yorktown Partners LLC 410 Park Avenue, 19th Floor New York, New York 10022 Attention: W. Howard Keenan, Jr.

November 13, 2019 SC 13D/A

AMGP / Antero Midstream GP LP / ANTERO RESOURCES Corp - SC 13D/A Activist Investment

SC 13D/A 1 a19-226081sc13da.htm SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 3) Antero Midstream Corporation (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) 03676B 102 (CUSIP Number) Glen C. Warren, Jr. 1615 Wynkoop Street Denver, Colorado 80202 (303) 35

November 12, 2019 EX-99

JOINT FILING AGREEMENT

Invesco Joint Filing Agreement JOINT FILING AGREEMENT In accordance with Rule 13d-1(k) (l) under the Securities Exchange Act of 1934, as amended, the undersigned hereby agree to the joint filing of the attached Schedule 13G, and any and all amendments thereto, and expressly authorize Invesco Ltd.

November 12, 2019 SC 13G

AMGP / Antero Midstream GP LP / Invesco Ltd. - SEC SCHEDULE 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* Antero Midstream Corp (Name of Issuer) Common Stock (Title of Class of Securities) 03676B102 (CUSIP Number) October 31, 2019 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Sch

November 12, 2019 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): November 6, 2019 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Comm

November 12, 2019 EX-1.1

Underwriting Agreement, dated November 6, 2019, by and among Antero Midstream Corporation, the Selling Stockholders and Barclays Capital Inc.

Exhibit 1.1 25,965,437 Shares ANTERO MIDSTREAM CORPORATION Common Stock UNDERWRITING AGREEMENT November 6, 2019 Barclays Capital Inc. 745 Seventh Avenue New York, New York 10019 Ladies and Gentlemen: The stockholders listed on Schedule I hereto (each, a “Selling Stockholder” and together, the “Selling Stockholders”), propose to sell an aggregate of 25,965,437 shares (the “Stock”) of the common sto

November 8, 2019 424B3

25,965,437 Shares of Common Stock

Use these links to rapidly review the document TABLE OF CONTENTS TABLE OF CONTENTS Table of Contents Filed Pursuant to Rule 424(b)(3) Registration No.

November 7, 2019 FWP

SECONDARY OFFERING OF 25,965,437 SHARES OF COMMON STOCK OF ANTERO MIDSTREAM CORPORATION

Filed Pursuant to Rule 433 Registration No. 333-230230 November 6, 2019 SECONDARY OFFERING OF 25,965,437 SHARES OF COMMON STOCK OF ANTERO MIDSTREAM CORPORATION The information in this final term sheet supplements the prospectus of Antero Midstream Corporation (the “Company,” “we,” “us” or “our”), dated March 13, 2019 (the “Base Prospectus”), and supersedes the information in the Base Prospectus re

October 30, 2019 8-K/A

Material Impairments

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A (Amendment No. 1) CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): September 18, 2019 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction o

October 30, 2019 10-Q

Quarterly Report - 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2019 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file numbe

October 30, 2019 EX-99.1

Unaudited pro forma condensed combined financial statements of Antero Midstream Corporation.

EXHIBIT 99.1 UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL STATEMENTS Set forth below are the unaudited pro forma condensed combined statements of operations and comprehensive income of Antero Midstream Corporation for the three and nine months ended September 30, 2018 and 2019. The unaudited pro forma condensed combined financial statements for the three and nine months ended September 30, 201

October 29, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): October 29, 2019 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Comm

October 29, 2019 EX-99.1

Antero Midstream Reports Third Quarter 2019 Financial and Operating Results

Exhibit 99.1 Antero Midstream Reports Third Quarter 2019 Financial and Operating Results Denver, Colorado, October 29, 2019—Antero Midstream Corporation (NYSE: AM) (“Antero Midstream” or the “Company”) today released its third quarter 2019 financial and operating results. The relevant condensed consolidated financial statements are included in Antero Midstream’s Quarterly Report on Form 10-Q for t

September 19, 2019 8-K

Material Impairments

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): September 18, 2019 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Co

September 9, 2019 SC 13D/A

AMGP / Antero Midstream GP LP / Yorktown Energy Partners V Lp - SC 13D/A Activist Investment

SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 2)* Antero Midstream Corporation (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) 03676B 102 (CUSIP Number) c/o Yorktown Partners LLC 410 Park Avenue, 19th Floor New York, New York 10022 Attention: W. Howard Ke

September 6, 2019 SC 13D/A

AMGP / Antero Midstream GP LP / ANTERO RESOURCES Corp - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 2) Antero Midstream Corporation (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) 03676B 102 (CUSIP Number) Glen C. Warren, Jr. 1615 Wynkoop Street Denver, Colorado 80202 (303) 357-7310 (Name, Address and Telephone Numbe

September 6, 2019 SC 13D/A

AMGP / Antero Midstream GP LP / Antero Subsidiary Holdings Llc - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 2) Antero Midstream Corporation (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) 03676B 102 (CUSIP Number) Antero Subsidiary Holdings LLC Paul M. Rady Glen C. Warren, Jr. 1615 Wynkoop Street Denver, Colorado 80202 (303)

September 6, 2019 SC 13D/A

AMGP / Antero Midstream GP LP / Warburg Pincus Private Equity VIII, L.P. - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 5)* Antero Midstream Corporation (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) 03676B 102 (CUSIP Number) c/o Warburg Pincus & Co. 450 Lexington Avenue New York, NY 10017 212-878-0600 With a copy to: Manuel A. Miranda

August 12, 2019 8-K

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 12, 2019 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Commi

August 1, 2019 EX-99.1

Antero Midstream Reports Second Quarter 2019 Financial and Operating Results

Exhibit 99.1 Antero Midstream Reports Second Quarter 2019 Financial and Operating Results Denver, Colorado, July 31, 2019—Antero Midstream Corporation (NYSE: AM) (“Antero Midstream” or the “Company”) today released its second quarter 2019 financial and operating results. The relevant condensed consolidated financial statements are included in Antero Midstream’s Quarterly Report on Form 10-Q for th

August 1, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 31, 2019 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Commiss

July 31, 2019 EX-99.1

Unaudited pro forma condensed combined financial statements of Antero Midstream Corporation.

EXHIBIT 99.1 UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL STATEMENTS Set forth below are the unaudited pro forma condensed combined statements of operations and comprehensive income of Antero Midstream Corporation for the three and six months ended June 30, 2018 and 2019. The unaudited pro forma condensed combined financial statements for the three and six months ended June 30, 2018 have been

July 31, 2019 10-Q

Quarterly Report - 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2019 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 00

July 31, 2019 EX-10.2

Form of Restricted Stock Unit Grant Notice and Restricted Stock Unit Agreement under the Antero Midstream Corporation Long Term Incentive Plan (incorporated by reference to Exhibit 10.2 to the Company’s Quarterly Report on Form 10-Q (Commission File No. 001-38075) filed on July 31, 2019).

Exhibit 10.2 ANTERO MIDSTREAM CORPORATION LONG TERM INCENTIVE PLAN RESTRICTED STOCK UNIT GRANT NOTICE Pursuant to the terms and conditions of the Antero Midstream Corporation Long Term Incentive Plan, as amended from time to time (the “Plan”), Antero Midstream Corporation (the “Company”) hereby grants to the individual listed below (“you” or the “Participant”) the number of Restricted Stock Units

July 31, 2019 EX-10.1

Form of Performance Share Unit Grant Notice and Performance Share Unit Agreement under the Antero Midstream Corporation Long Term Incentive Plan (incorporated by reference to Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q (Commission File No. 001-38075) filed on July 31, 2019).

Exhibit 10.1 ANTERO MIDSTREAM CORPORATION LONG TERM INCENTIVE PLAN PERFORMANCE SHARE UNIT GRANT NOTICE Pursuant to the terms and conditions of the Antero Midstream Corporation Long Term Incentive Plan, as amended from time to time (the “Plan”), Antero Midstream Corporation (the “Company”) hereby grants to the individual listed below (“you” or the “Participant”) an award (this “Award”) of Performan

July 1, 2019 8-K

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 1, 2019 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Commissi

June 28, 2019 8-K

Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 28, 2019 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Commiss

June 28, 2019 EX-4.1

Form of 5.75% Senior Note due 2028 (incorporated by reference to Exhibit 4.2 to the Company’s Current Report on Form 8-K (Commission File No. 001-38075) filed on June 28, 2019).

Exhibit 4.1 ANTERO MIDSTREAM PARTNERS LP, ANTERO MIDSTREAM FINANCE CORPORATION AND EACH OF THE GUARANTORS PARTY HERETO INDENTURE Dated as of June 28, 2019 WELLS FARGO BANK, NATIONAL ASSOCIATION Trustee 5.75% SENIOR NOTES DUE 2028 TABLE OF CONTENTS Page ARTICLE 1 DEFINITIONS AND INCORPORATION BY REFERENCE Section 1.01 Definitions 1 Section 1.02 Other Definitions 25 Section 1.03 Incorporation by Ref

June 25, 2019 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 25, 2019 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Commiss

June 25, 2019 EX-99.1

Antero Midstream Announces Launch of $600 Million Offering of Senior Notes

Exhibit 99.1 Antero Midstream Announces Launch of $600 Million Offering of Senior Notes Denver, Colorado, June 25, 2019—Antero Midstream Corporation (NYSE: AM) (“Antero Midstream”) announced today that Antero Midstream Partners LP (“Antero Midstream Partners”), an indirect, wholly owned subsidiary of Antero Midstream, subject to market conditions, intends to offer $600 million in aggregate princip

June 17, 2019 8-K

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): June 17, 2019 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Commiss

June 10, 2019 8-K

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): June 10, 2019 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Commiss

June 3, 2019 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 31, 2019 ANTERO MIDSTREAM CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-38075 61-1748605 (State or Other Jurisdiction of Incorporation) (Commissi

May 24, 2019 SC 13D/A

AMGP / Antero Midstream GP LP / Warburg Pincus Private Equity VIII, L.P. - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 4)* Antero Midstream Corporation (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) 03676B 102 (CUSIP Number) c/o Warburg Pincus & Co. 450 Lexington Avenue New York, NY 10017 212-878-0600 With a copy to: Manuel A. Miranda

May 24, 2019 SC 13D/A

AMGP / Antero Midstream GP LP / Yorktown Energy Partners V Lp - SC 13D/A Activist Investment

SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 1)* Antero Midstream Corporation (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) 03676B 102 (CUSIP Number) c/o Yorktown Partners LLC 410 Park Avenue, 19th Floor New York, New York 10022 Attention: W. Howard Ke

May 24, 2019 SC 13D/A

AMGP / Antero Midstream GP LP / Antero Subsidiary Holdings Llc - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 1) Antero Midstream Corporation (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) 03676B 102 (CUSIP Number) Antero Subsidiary Holdings LLC Paul M. Rady Glen C. Warren, Jr. 1615 Wynkoop Street Denver, Colorado 80202 (303)

May 24, 2019 SC 13D/A

AMGP / Antero Midstream GP LP / ANTERO RESOURCES Corp - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 1) Antero Midstream Corporation (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) 03676B 102 (CUSIP Number) Glen C. Warren, Jr. 1615 Wynkoop Street Denver, Colorado 80202 (303) 357-7310 (Name, Address and Telephone Numbe

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