CHRISTOPHER A. KUEBLER - 05 Nov 2025 Form 4 Insider Report for WATERS CORP /DE/ (WAT)

Role: Director
Signature: /s/ Michael Lynn, attorney-in-fact for Christopher Kuebler
Issuer symbol: WAT
Transactions as of: 05 Nov 2025
Net transactions value: -$10.11
Form type: 4
Filing time: 07 Nov 2025, 19:00:43 UTC
Previous filing: 06 Jan 2025
Next filing: 05 Jan 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
KUEBLER CHRISTOPHER A	Director	34 MAPLE STREET, MILFORD	/s/ Michael Lynn, attorney-in-fact for Christopher Kuebler	07 Nov 2025	0001229877

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	WAT	Common Stock	Options Exercise	$490,246	+3,761	+25%	$130.35	18,796	05 Nov 2025	Direct
transaction	WAT	Common Stock	Tax liability	$490,256	-1,318	-7%	$371.97	17,478	05 Nov 2025	Direct	F1

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
transaction	WAT	Stock Option (Right to Buy)	Options Exercise	$0	-3,761	-100%	$0.000000	0	05 Nov 2025	Common Stock	3,761	$130.35	Direct

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

Explanation of Responses:

Id	Content
F1	The reported transaction is not a sale but represents the withholding of shares by the Issuer to cover payment of the exercise price in connection with the reported exercise of a stock option by the Reporting Person prior to the expiration of such stock option.