WATERS CORP /DE/ (WAT) · Insider Trading (Form 4) SEC Filing

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-03-31 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: WATERS CORP /DE/ (WAT) CIK: 0001000697 --- Reporting Owner --- Name: Knight Heather CIK: 0001967528 Role: Director --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock Date: 2026-03-31 | Code: A (Grant or award) Shares: +68.44 | Price: $0.00 Shares Owned After: 1,217.51 | Ownership: D (Direct) Footnotes: [F1] Represents common stock units received in lieu of cash payment of director fees pursuant to the Issuer's 1996 Non-Employee Director Deferred Compensation Plan. Common stock units are convertible into shares of the Issuer's common stock on a one-for-one basis upon distribution, which will occur on January 1, 2027, pursuant to an election previously made by the Reporting Person. --- Footnotes (Complete Index) --- F1: Represents common stock units received in lieu of cash payment of director fees pursuant to the Issuer's 1996 Non-Employee Director Deferred Compensation Plan. Common stock units are convertible into shares of the Issuer's common stock on a one-for-one basis upon distribution, which will occur on January 1, 2027, pursuant to an election previously made by the Reporting Person. --- Signature --- /s/ /s/ Michael Lynn, attorney-in-fact for Heather Knight (2026-04-02)