Stacy A. Mitchell - 17 Feb 2026 Form 4 Insider Report for American Water Works Company, Inc. (AWK)

Role: EVP and General Counsel
Signature: /s/ Jeffrey M. Taylor, as attorney-in-fact for Stacy A. Mitchell
Issuer symbol: AWK
Transactions as of: 17 Feb 2026
Net transactions value: -$69,959
Form type: 4
Filing time: 18 Feb 2026, 17:52:34 UTC
Previous filing: 02 Feb 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Mitchell Stacy A.	EVP and General Counsel	1 WATER STREET, CAMDEN	/s/ Jeffrey M. Taylor, as attorney-in-fact for Stacy A. Mitchell	18 Feb 2026	0002026766

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	AWK	Common Stock	Award	$0	+2,550	+42%	$0.000000	8,667	17 Feb 2026	Direct	F1
transaction	AWK	Common Stock	Award	$0	+1,060	+12%	$0.000000	9,727	17 Feb 2026	Direct	F2
transaction	AWK	Common Stock	Tax liability	$69,959	-524	-5.4%	$133.51	9,203	17 Feb 2026	Direct

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Represents shares underlying an award of restricted stock units (RSUs) granted on February 17, 2026, under the American Water Works Company, Inc. 2017 Omnibus Equity Compensation Plan. These awards will vest in three approximately equal increments on January 31, 2027, 2028 and 2029, subject to continued employment on each vesting date and applicable continued vesting provisions in the event of retirement. RSUs are settled solely by the delivery of one share of common stock per RSU (and may not be settled in cash).
F2	Represents shares vested pursuant to one or more awards of performance stock units (PSUs) granted in February 2023 under the American Water Works Company, Inc. 2017 Omnibus Equity Compensation Plan. These awards vested on February 17, 2026. PSUs are settled solely by the delivery of one share of common stock per PSU (and may not be settled in cash).

Content

Represents shares underlying an award of restricted stock units (RSUs) granted on February 17, 2026, under the American Water Works Company, Inc. 2017 Omnibus Equity Compensation Plan. These awards will vest in three approximately equal increments on January 31, 2027, 2028 and 2029, subject to continued employment on each vesting date and applicable continued vesting provisions in the event of retirement. RSUs are settled solely by the delivery of one share of common stock per RSU (and may not be settled in cash).

Represents shares vested pursuant to one or more awards of performance stock units (PSUs) granted in February 2023 under the American Water Works Company, Inc. 2017 Omnibus Equity Compensation Plan. These awards vested on February 17, 2026. PSUs are settled solely by the delivery of one share of common stock per PSU (and may not be settled in cash).