Summit Midstream Corp

The following risk factor supplements and, to the extent inconsistent therewith, supersedes the risk factors previously disclosed in the Company’s 2025 Annual Report. Except as set forth below, there have been no material changes to the Company’s risk factors as previously disclosed.

We cannot guarantee that our Share Repurchase Program will be fully completed or that it will enhance long-term stockholder value. Share repurchases could also increase the volatility of the trading price of our common stock and could diminish our cash reserves.

In June 2026, the Company’s Board of Directors authorized the Share Repurchase Program to repurchase up to $35.0 million of the Company’s outstanding common stock. Under the Share Repurchase Program, repurchases of shares of the Company’s common stock may be made from time to time in the open market, through privately negotiated transactions, block purchases, or otherwise, including through a Rule 10b5-1 trading plan, in compliance with applicable federal and state securities laws, including Rule 10b-18 under the Securities Exchange Act of 1934, as amended. Although our Board of Directors has authorized the Share Repurchase Program, it does not obligate us to repurchase any specific dollar amount or to acquire any specific number of shares. The actual timing, manner, price, and total amount of future repurchases will depend on a variety of factors, including business and market conditions, the trading price of the Company’s common stock, compliance with debt covenants, and certain other considerations. The Share Repurchase Program may be modified, suspended, or terminated at any time, and we cannot guarantee that the program will be fully completed or that it will enhance long-term stockholder value. The Share Repurchase Program could affect the trading price of our stock and increase volatility, and any announcement of a termination of this program may result in a decrease in the trading price of our stock. In addition, the Share Repurchase Program could diminish our cash, cash equivalents, and marketable securities.