American Water Works Company, Inc. reported that its subsidiary, Pennsylvania-American Water Company, received a decision on July 16, 2026, from the Pennsylvania Public Utility Commission in connection with a general rate case. Pennsylvania American Water had filed the rate case on November 14, 2025. The company disclosed the development under Item 7.01, Regulation FD Disclosure, indicating that Pennsylvania American Water issued a press release on July 16, 2026, addressing the PaPUC decision. The press release was furnished as Exhibit 99.1 to the Form 8-K. American Water said Pennsylvania American Water is reviewing the commission’s decision and expects to receive a final order from the PaPUC “in due course.” The filing does not provide the financial terms of the PaPUC decision, such as the amount of any approved rate increase, revenue requirement, return on equity, rate base, or customer bill impacts. It also does not state whether the decision fully or partially approved Pennsylvania American Water’s requested rate relief. Those details may be contained in the press release exhibit or the forthcoming final order, but they are not included in the filing text provided. This is not an insider trading or securities issuance report. No directors, officers, or other insiders reported transactions; there are no share counts, prices, transaction codes, option exercises, vesting schedules, or post-transaction ownership figures. The filing is instead a regulatory update concerning a utility rate proceeding, which can be financially significant because general rate cases affect the revenues Pennsylvania American Water may collect from customers and, by extension, the earnings profile of American Water Works. American Water also noted that the Item 7.01 information, including the press release exhibit, was “furnished” rather than “filed” for purposes of the Securities Act or Exchange Act, unless specifically incorporated by reference in a future filing. The report was signed on July 16, 2026, by David M. Bowler, the company’s Executive Vice President and Chief Financial Officer.