Form 4: Antero Midstream Director Sells Shares Under 10b5-1 Plan

Antero Midstream Corp. Director Brooks J. Klimley sold 5,000 shares of common stock on December 16, 2025, under a Rule 10b5-1 plan.

Summary

• Brooks J. Klimley, a Director of Antero Midstream Corp. (AM), reported a sale of common stock.
• The transaction involved the disposition of 5,000 shares of common stock, par value $0.01 per share.
• The shares were sold on December 16, 2025, at a weighted average price of $17.59 per share.
• The sale was executed in multiple transactions with prices ranging from $17.57 to $17.61.
• Following this transaction, Brooks J. Klimley beneficially owns 72,622 shares of Antero Midstream Corp. common stock.
• The transaction was made pursuant to a contract, instruction, or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).

Sentiment

Score: 5

Explanation: The sentiment is neutral to slightly cautious. While insider selling can be viewed negatively, the execution under a Rule 10b5-1 plan mitigates concerns about opportunistic trading, suggesting a pre-planned financial decision rather than a reaction to new adverse company information.

Positives

• The transaction was conducted under a Rule 10b5-1 plan, indicating a pre-scheduled sale not based on new material non-public information, which enhances transparency and reduces concerns about opportunistic insider trading.

Negatives

• A director of Antero Midstream Corp. sold 5,000 shares of common stock, which can sometimes be perceived negatively by the market as it reduces insider ownership.

Future Outlook

This filing does not contain any forward-looking statements or guidance regarding the company's future performance or outlook.

Industry Context

This insider transaction is specific to Antero Midstream Corp. and does not directly reflect broader industry trends or competitive dynamics. Insider sales are a routine disclosure for publicly traded companies.

Corporate Governance

Stakeholder Impact

• Shareholders: The sale by a director could be interpreted by some shareholders as a signal, though the 10b5-1 plan suggests it's a pre-planned event rather than a reaction to new company-specific news. The impact is likely minor given the relatively small number of shares sold compared to total outstanding shares.

Key Dates

Recommendation

A single insider sale, particularly when executed under a Rule 10b5-1 plan, typically does not warrant a strong buy or sell recommendation. Such transactions are often for personal financial planning or diversification and do not necessarily reflect a change in the company's fundamental outlook. Investors should consider this transaction in the broader context of the company's financial performance, industry trends, and overall market conditions.

Keywords

Antero Midstream, AM, Insider Transaction, Form 4, Stock Sale, Director, 10b5-1 Plan, Beneficial Ownership