Welcome to our dedicated page for Antero Midstream SEC filings (Ticker: AM), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
Antero Midstream Corporation filings document the public-company disclosures of an Appalachian Basin midstream operator with NYSE-listed common stock. Form 8-K reports cover quarterly and annual operating results, Regulation FD investor materials, material events, financing arrangements and capital-structure matters involving Antero Midstream Partners LP and Antero Midstream Finance Corporation.
Proxy filings describe annual meeting matters, board elections, shareholder voting items and governance practices. The filing record also documents registered securities, senior note obligations, revolving credit facility references, risk and financial disclosures, and formal updates tied to the company's gathering, compression, processing, fractionation and water asset operations.
Antero Midstream Corp director and officer Michael N. Kennedy reported equity compensation activity in company common stock. He acquired 203,212 shares at no cost through the vesting and settlement of performance share units tied to the company’s return on invested capital.
On the same date, 89,392 shares were disposed of through share withholding to cover tax obligations, based on a $22.12 closing price. After these transactions, he directly owned 1,462,910 shares, including 457,904 shares underlying previously granted restricted stock units that are still subject to vesting.
Antero Corporation reported that wholly owned subsidiaries of Antero Midstream Corporation have completed the previously announced sale of substantially all of their Utica Shale midstream assets. The assets were sold to an affiliate of Infinity Natural Resources, Inc. and Northern Oil and Gas, Inc. for aggregate cash consideration of $400 million, subject to customary post-closing and effective-date adjustments under a purchase and sale agreement dated December 5, 2025.
Antero Midstream Corporation reported mixed fourth quarter 2025 results and raised its 2026 outlook. Fourth quarter 2025 Net Income was $52 million, or $0.11 per diluted share, a 52% per share decrease versus the prior-year quarter, primarily reflecting an $86.6 million non-cash loss on long-lived assets tied to Utica Shale assets held for sale.
Underlying performance was stronger. Adjusted Net Income was $133 million, or $0.28 per diluted share, up 8% per share, and Adjusted EBITDA rose 4% to $285 million. Capital expenditures were $45 million, and Adjusted Free Cash Flow after dividends was $86 million. Low-pressure gathering and compression volumes grew 5%, while fresh water delivery volumes fell 18%.
The company combined growth investment, balance sheet discipline, and shareholder returns. Leverage was 2.7x at December 31, 2025. Antero Midstream repurchased 2.7 million shares for $48 million in the quarter and bought back 9.4 million shares in 2025 at a weighted average price of $17.28, leaving $336 million of remaining repurchase capacity.
Guidance for 2026 points to higher earnings and cash generation. The company closed the HG Midstream acquisition in early February and incorporates this, along with an Ohio Utica Shale divestiture, into its 2026 outlook. It forecasts Net Income of $485–$535 million, Adjusted EBITDA of $1.185–$1.235 billion, and capital expenditures of $190–$220 million. Adjusted Free Cash Flow after dividends is projected at $330–$390 million in 2026, assuming an annualized dividend of $0.90 per share, an 11% increase at the midpoint compared to 2025.
Antero Midstream Corporation filed its Form 10-K describing a fee-based midstream business that gathers, compresses and handles water for Antero Resources in the Appalachian Basin. The company operates extensive low- and high-pressure pipelines, compression facilities and water systems in West Virginia and Ohio.
The report highlights a $1.1 billion acquisition of HG Energy II Midstream Holdings’ gathering and water assets and a planned $400 million Utica Shale midstream divestiture, along with a prior $70 million Summit asset purchase. Antero Resources remains the key customer, holding a 29% ownership interest and dedicating most of its acreage under long-term contracts running to at least 2035–2038.
Management emphasizes a fixed-fee model with certain minimum volume commitments, just-in-time capital spending and a focus on maintaining a strong balance sheet and sustainable leverage. The filing also details extensive environmental, safety and regulatory obligations and reiterates significant customer-concentration and commodity-cycle risks tied to Antero Resources’ activity levels.
Antero Midstream Partners LP, an indirect wholly owned subsidiary of Antero Midstream Corporation, has completed its previously announced acquisition of HG Energy II Midstream Holdings, LLC from HG Energy II LLC. The deal closed on February 3, 2026 for cash consideration of approximately $1.1 billion.
The transaction was carried out under a Membership Interest Purchase Agreement dated December 5, 2025, which was later amended on December 22, 2025 to update certain annexes. The amendment is filed as an exhibit to this report for further reference.
Antero Midstream Corp director John C. Mollenkopf reported acquiring 2,058 shares of the company’s common stock on January 10, 2026. The shares were recorded at a price of $0.00 per share under transaction code "A," indicating an acquisition. Following this transaction, Mollenkopf beneficially owns 103,042 shares of Antero Midstream common stock in direct ownership.
Antero Midstream Corp director reports stock acquisition
Director Peter A. Dea reported acquiring 2,058 shares of Antero Midstream Corp common stock on 01/10/2026 at a reported price of $0.00 per share
W. Howard Keenan Jr., a director of Antero Midstream Corp (AM), reported acquiring additional company stock. On January 10, 2026, he acquired 2,058 shares of Antero Midstream common stock at a reported price of $0.00 per share. After this transaction, he beneficially owned a total of 154,167 common shares, held in direct ownership. This filing provides transparency into the director’s current equity stake in the company.
Antero Midstream Corp director Nancy Chisholm reported acquiring 2,058 shares of the company's common stock on January 10, 2026. The shares were recorded at a price of $0.00 per share, indicating they were received without cash consideration, such as through an award or grant. Following this transaction, she beneficially owns 30,684 common shares, all reported as held directly.
Antero Midstream Corp director Janine J. McArdle reported acquiring 2,058 shares of common stock on January 10, 2026 at a reported price of $0.00 per share. Following this transaction, she beneficially owns 78,900 common shares directly. This Form 4 filing discloses a change in her ownership position but does not provide additional financial results for the company.