(WAT)

Role: Director
Signature: /s/ Keeley A. Aleman, attorney-in-fact for Richard H. Fearon
Issuer symbol: WAT
Transactions as of: 06 Mar 2026
Net transactions value: +$306,340
Form type: 4
Filing time: 10 Mar 2026, 16:21:34 UTC
Previous filing: 27 Feb 2026
Next filing: 13 Mar 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
FEARON RICHARD H	Director	34 MAPLE STREET, MILFORD	/s/ Keeley A. Aleman, attorney-in-fact for Richard H. Fearon	10 Mar 2026	0001188586

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	WAT	Common Stock	Purchase	$306,340	+1,000	+43%	$306.34	3,302	06 Mar 2026	Direct	F1

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

Explanation of Responses:

Id	Content
F1	The price reported in Column 4 is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $305.84 to $306.49 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote.

Content

The price reported in Column 4 is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $305.84 to $306.49 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote.