(WAT)

Reporting relationship: SVP Waters Analytical Sciences
Issuer ticker: WAT
Reported as of: 25 Feb 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 27 Feb 2026, 19:33:54 UTC
Prior SEC filing: 06 Feb 2026
Next SEC filing: 25 Jun 2026
Source filing: View source filing
Reporting owner signature: /s/ Michael Lynn, attorney-in-fact for Robert L. Carpio III

Key filing fact

Robert L. Carpio III filed Form 4 for WATERS CORP /DE/ (WAT) on 27 Feb 2026.

Key facts

This page summarizes Robert L. Carpio III's Form 4 filing for WATERS CORP /DE/ (WAT).
2 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 27 Feb 2026, 19:33.

Change

Previous filing in this sequence was filed on 06 Feb 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0002027463 Primary reporting owner

Carpio Robert L III

Relationship: SVP Waters Analytical Sciences
Address: C/O WATERS CORPORATION, 34 MAPLE STREET, MILFORD
Signature: /s/ Michael Lynn, attorney-in-fact for Robert L. Carpio III
Signature date: 27 Feb 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

WAT transaction

Common Stock

Award

Transaction value: $0
Shares: +997
Change %: +38%
Price: $0.000000
Shares after: 3,615
Date: 25 Feb 2026
Ownership: Direct
Footnotes: F1

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

WAT transaction Derivative

Stock Option (Right to Buy)

Award

Transaction value: $0
Shares: +4,884
Change %
Price: $0.000000
Shares after: 4,884
Date: 25 Feb 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 4,884
Exercise price: $319.44
Footnotes: F2

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote F1

Represents restricted stock units ("RSUs"), which will vest in four equal annual installments, with the first such installment vesting on February 25, 2027, subject to the Reporting Person's continued service with the Issuer on each such vesting date. The RSUs are convertible into shares of the Issuer's common stock on a one-to-one basis upon vesting and settlement.

Footnote F2

The shares of common stock underlying this stock option will vest and become exercisable in four equal annual installments, with the first such installment vesting and becoming exercisable on February 25, 2027, subject to the Reporting Person's continued service with the Issuer on each such vesting date.