Mark W. Peterson - 06 Feb 2026 Form 4 Insider Report for Zurn Elkay Water Solutions Corp (ZWS)

Role: Chief Administrative Officer
Signature: /s/ Jeffrey J. LaValle under Power of Attorney for Mark W. Peterson
Issuer symbol: ZWS
Transactions as of: 06 Feb 2026
Net transactions value: -$1,826,831
Form type: 4
Filing time: 10 Feb 2026, 20:43:25 UTC
Previous filing: 06 Feb 2026
Next filing: 13 Feb 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
PETERSON MARK W	Chief Administrative Officer	511 W. FRESHWATER WAY, MILWAUKEE	/s/ Jeffrey J. LaValle under Power of Attorney for Mark W. Peterson	10 Feb 2026	0001535684

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ZWS	Common Stock	Award		+73,628	+25%		369,006	06 Feb 2026	Direct	F1
transaction	ZWS	Common Stock	Sale	$1,826,831	-35,267	-9.6%	$51.80	333,739	10 Feb 2026	Direct	F2, F3
transaction	ZWS	Common Stock	Award		+5,874	+1.8%		339,613	10 Feb 2026	Direct	F4
holding	ZWS	Common Stock						5,303	06 Feb 2026	By 401(k) Plan	F5

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
holding	ZWS	Stock Option (right to buy)						33,481	06 Feb 2026	Common Stock	33,481	$33.05	Direct	F6

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

Explanation of Responses:

Id	Content
F1	Acquisition of shares, including shares received for accrued dividend equivalent rights, for no consideration upon the vesting of performance stock units, based on Zurn Elkay Water Solutions Corporation's performance during three year performance period (January 1, 2023 - December 31, 2025).
F2	Shares were sold to satisfy tax withholding obligations and related fees in connection with the vesting of performance stock units and related dividend shares.
F3	This transaction was executed in multiple trades at prices ranging from $51.48 to $52.16. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effectuated.
F4	Restricted stock unit grant, which vests in three annual installments beginning on the first anniversary of the grant date, assuming continued employment.
F5	Based on information from the trustee of the 401(k) Plan.
F6	Option fully vested.