X0508 4 2026-02-25 0001000697 WATERS CORP /DE/ WAT 0001821498 Batra Udit 34 MAPLE STREET MILFORD MA 01757 1 1 President and CEO 0 Common Stock 2026-02-25 4 A 0 5165 0 A 36557 D Stock Option (Right to Buy) 319.44 2026-02-25 4 A 0 25283 0 A 2036-02-25 Common Stock 25283 25283 D 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. 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. /s/ Michael Lynn, attorney-in-fact for Udit Batra 2026-02-27