[8-K] American Water Works Company, Inc. Reports Material Event

Rhea-AI Filing Summary

American Water Works Company, through its subsidiary West Virginia American Water, received approval from the West Virginia Public Service Commission for new water and wastewater rates tied to recent infrastructure investments.

The order authorizes an annualized revenue increase of $20.5 million, excluding $12.7 million in previously recovered infrastructure surcharges, based on a 9.8% return on equity and a capital structure of 51.0% common equity and 49.0% debt. The higher revenues support approximately $239 million of system investments and reflect an authorized rate base that the subsidiary views as about $1.1 billion. Effective March 1, 2026, a typical residential customer using 3,000 gallons per month will see bills rise by about $6 for water and $7 for wastewater, while customers on the Special Reduced Rate Residential Service tariff receive an additional 20% discount.

Insights

Utility regulation and infrastructure analyst

WV rate approval modestly lifts regulated revenue while funding ongoing capital work.

The amended West Virginia order grants West Virginia American Water an annualized revenue increase of $20.5 million, excluding $12.7 million of infrastructure surcharges, to support about $239 million of recent system investments. The authorized return on equity is 9.8% with a roughly balanced debt‑equity mix.

This outcome aligns with typical regulated utility frameworks: capital deployed into rate base (about $1.1 billion as viewed by the subsidiary) is recovered through higher customer bills. Customer impact is specific and measurable, with residential bills for 3,000 gallons rising around $6 for water and $7 for wastewater.

The order also embeds affordability measures through an additional 20% discount for Special Reduced Rate Residential Service customers, complementing existing aid programs. Overall, the change appears incremental relative to American Water’s national scale, representing routine regulatory maintenance rather than a thesis‑changing event.

March 5, 20260001410636false00014106362026-03-052026-03-05

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 5, 2026

American Water Works Company, Inc.

(Exact name of registrant as specified in its charter)

Commission File Number: 001-34028

Delaware			51-0063696
(State or other jurisdiction of incorporation)			(IRS Employer Identification No.)

1 Water Street

Camden, NJ 08102-1658

(Address of principal executive offices, including zip code)

(856) 955-4001

(Registrant’s telephone number, including area code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of Each Class

Trading Symbol

Name of Each Exchange on Which Registered

Common stock, par value $0.01 per share

AWK

New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR 230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR 240.12b-2).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 8.01.    Other Events.

West Virginia Public Service Commission (the “WVPSC”) Approval of Orders Related to West Virginia-American Water Company, Inc. (“West Virginia American Water”)

On March 10, 2026, West Virginia American Water, a subsidiary of American Water Works Company, Inc. (the “Company”), issued a press release to announce that on March 5, 2026, the WVPSC issued an amended order (the “Order”) that approves the adjustment of West Virginia American Water’s base rates requested in a general rate case filed on May 5, 2025. The Order approved an annualized increase of $20.5 million in West Virginia American Water’s water and wastewater system revenues, which excludes previously recovered infrastructure surcharges of $12.7 million, based on an authorized return on equity (“ROE”) of 9.8%, a common equity ratio of 51.0% and a debt ratio of 49.0%. West Virginia American Water’s view of its authorized rate base, which was not stated in the Order, is approximately $1.1 billion.

The increased water and wastewater revenues related to this base rate adjustment are being driven primarily by approximately $239 million of related water and wastewater system capital investments made since the completion of West Virginia American Water’s previous rate case and through February 2026. The new water and wastewater rates became effective as of March 1, 2026.

A copy of the press release issued by West Virginia American Water has been filed as Exhibit 99.1 hereto and is incorporated herein by reference. References and links to websites and other information contained in this press release are not provided as active hyperlinks, and the information contained in or accessed through these hyperlinks shall not be incorporated into, or form a part of, this Current Report on Form 8-K.

Item 9.01.    Financial Statements and Exhibits.

(d) Exhibits.

The following exhibits to this Current Report have been filed herewith (except as noted below):

Exhibit No.						Description
99.1						Press Release, dated March 10, 2026, issued by West Virginia American Water.
104						Cover Page Interactive Data File (the cover page XBRL tags are included and formatted as Inline XBRL).

2

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

AMERICAN WATER WORKS COMPANY, INC.

Dated:

March 10, 2026

By:

/s/ DAVID M. BOWLER

David M. Bowler

Executive Vice President and Chief Financial Officer

3

Exhibit 99.1

West Virginia Public Service Commission Authorizes New Rates for West Virginia American Water

Supports over $239 Million in Continued Infrastructure Investments Across the State; Additional Customer Discount Program Also Introduced

CHARLESTON, W.Va., (March 10, 2026) - The West Virginia Public Service Commission issued an amended order on Thursday, March 5, 2026, approving new rates for West Virginia American Water. The approved rates represent a total annualized revenue increase of $20.5 million, which excludes $12.7 million in previously recovered infrastructure surcharges.

The company’s rate request was filed in May 2025 and supports over $239 million in investments and improvements in the system across the state since the company’s last rate adjustment in 2024.

“Continuing infrastructure investments across our service territory are vital for sustaining safe, clean, reliable, and affordable water and wastewater services for the communities we serve, as well as maintaining compliance with water quality and environmental regulations,” said Scott Wyman, President of West Virginia American Water. “We strive to maintain a balance between continuous investment for needed system improvements and affordability for our customers, and this order allows us to continue to make necessary improvements for the longevity of the system.”

Effective March 1, 2026, residential water customers using 3,000 gallons per month will see their average bill increase by approximately $6 per month, and residential wastewater customers will see their average bill increase by approximately $7 per month.

The Public Service Commission also introduced an additional customer discount program available to customers enrolled in the Special Reduced Rate Residential Service (SRRRS) tariff. Customers on the SRRRS tariff will receive an additional 20% discount on the SRRRS tariff rate. This will be available in addition to the company’s H2O Help to Others Program™ and other bill assistance and payment arrangements already offered by the company.

Customers will receive information about the new rates in their next West Virginia American Water bill. Information will also be available on the company’s website at www.westvirginiaamwater.com under Customer Service & Billing, Your Water and Wastewater Rates.

About American Water

American Water (NYSE: AWK) is the largest regulated water and wastewater utility company in the United States. With a history dating back to 1886 and celebrating 140 years in 2026, We Keep Life Flowing® by providing safe, clean, reliable and affordable drinking water and wastewater services to approximately 14 million people with regulated operations in 14 states and on 18 military installations. American Water’s approximately 7,000 talented professionals leverage their significant expertise and the company’s national size and scale to achieve excellent outcomes for the benefit of customers, employees, investors and other stakeholders.

For more information, visit amwater.com and join American Water on LinkedIn, Facebook, X and Instagram.

About West Virginia American Water

West Virginia American Water, a subsidiary of American Water, is the largest regulated water utility in the state with approximately 300 dedicated employees working to provide safe, clean and reliable water and wastewater services to approximately 610,000 people.

AWK-IR

Media Contact

Olivia Bailey

West Virginia American Water

External Affairs Manager

Olivia.Bailey@amwater.com

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Filing Exhibits & Attachments

5 documents

Press Releases

• EX-99.1 EX-99.1 - WEST VIRGINIA-AMERICAN WATER PRESS RELEASE 8.6 KB

Other Documents

• EX-101 XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT 2.1 KB
• EX-101 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT 14.2 KB
• EX-101 XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT 24.9 KB
• EX-101 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT 14.7 KB