X0508 4 2025-02-05 0001000697 WATERS CORP /DE/ WAT 0001821498 Batra Udit 34 MAPLE STREET MILFORD MA 01757 1 1 President and CEO 0 Common Stock 2025-02-05 4 A 0 11349 0 A 25898 D Common Stock 2025-02-05 4 A 0 3622 0 A 29520 D Stock Option (Right to Buy) 414.09 2025-02-05 4 A 0 18640 0 A 2026-02-05 2035-02-05 Common Stock 18640 18640 D Represents earned performance shares with respect to a performance stock unit award originally granted on February 25, 2022, that contained performance-vesting requirements. The issuer's compensation committee certified as to the level of performance-goal attainment on February 5, 2025, and the shares will service vest on March 1, 2025. Represents shares of Restricted Stock Units that will vest 20% per annum for a five-year period beginning February 5, 2026. Options vest 20% per annum for a five-year period beginning February 5, 2026. /s/ Michael Lynn, attorney-in-fact for Udit Batra 2025-02-07