American Water and Essential Utilities Announce Expiration of Hart-Scott-Rodino Waiting Period for Proposed Merger
American Water Works (AWK) and Essential Utilities (WTRG) said the U.S. HSR Act waiting period for their pending merger expired Aug. 14, 2026, satisfying a closing condition. They also reported state regulatory approvals in Kentucky, Ohio, and Virginia, with a Texas settlement in principle. The deal is expected to close by end of Q1 2027, subject to remaining conditions.
How this was made

The 30-second read
Why it matters
The expiration of the HSR waiting period satisfies a stated condition to closing, reducing antitrust timing risk and improving deal completion odds while other regulatory and customary conditions remain.
Market read
HSR clearance is a concrete regulatory milestone for both merger counterparties, typically supportive for deal-spread and completion probability.
What to watch
The merger still depends on remaining required regulatory approvals and other customary closing conditions, so execution risk is not eliminated.
Background
American Water Works and Essential Utilities announced a pending merger and have been progressing through HSR and state-level approvals.
Ticker impact
American Water said the HSR waiting period for its pending merger with Essential Utilities expired Aug. 14, clearing a closing condition.
Modestly positive bias for AWK as merger completion probability rises, though remaining state approvals and other conditions still matter.
The article discloses a specific regulatory milestone (HSR waiting period expiration) that directly satisfies a stated closing condition, but it does not provide deal economics or new guidance.
Essential Utilities reported the HSR waiting period expired Aug. 14 for its proposed merger with American Water, satisfying a closing condition.
Modestly positive bias for WTRG, with follow-through dependent on remaining customary closing conditions.
This is a concrete antitrust-process update that lowers regulatory friction, but the merger still requires remaining approvals and customary conditions.
Market effects
Positive read-through for regulated water utility M&A as antitrust process advances without reported complications.
Potentially supportive for rate-regulated utility stakeholders in states where approvals were already granted (KY, OH, VA) and where a Texas settlement is in principle.
Limited, as this is a US antitrust and state-utility approval milestone with no direct international spillover.
Counterpoint
HSR expiration may already be partially priced; without new financial terms or additional approvals, the incremental impact could fade quickly.
Key entities
- companyAmerican Water Works Company, Inc.
Subject of the merger and the HSR waiting period expiration announcement.
- companyEssential Utilities, Inc.
Co-subject of the merger and the HSR waiting period expiration announcement.
- regulationHart-Scott-Rodino Antitrust Improvements Act (HSR)
US antitrust waiting period that expired, satisfying a closing condition.


