Church & Dwight (CHD)

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-03-09 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: CHURCH & DWIGHT CO INC /DE/ (CHD) CIK: 0000313927 --- Reporting Owner --- Name: Buchert Brian D CIK: 0001918805 Role: Officer (EVP of Strategy, M&A, and BP) --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock Date: 2026-03-09 | Code: A (Grant or award) Shares: +34.864 | Price: $100.39 Total Value: $3,500.00 Shares Owned After: 1,762.88 | Ownership: I (Indirect) | Nature: Prft Shring/Saving Plan Trust --- Derivative Transactions --- [Transaction #1] Security: Phantom Stock Date: 2026-03-09 | Code: A (Grant or award) Shares: +11.2 | Price: $102.25 Shares Owned After: 637.121 | Ownership: D (Direct) Footnotes: [F1] The phantom stock shares convert to common stock on a 1-for-1 basis. [F2] The phantom stock shares were acquired under the Church & Dwight Co., Inc. Deferred Compensation Plan and are to be settled in cash at such time as prescribed by the Plan. [F2] The phantom stock shares were acquired under the Church & Dwight Co., Inc. Deferred Compensation Plan and are to be settled in cash at such time as prescribed by the Plan. --- Holdings --- [Holding #1] Security: Common Stock Ownership: D (Direct) [Holding #2] Security: Common Stock Ownership: D (Direct) [Holding #3] Security: Common Stock Ownership: D (Direct) [Holding #4] Security: Common Stock Ownership: D (Direct) --- Footnotes (Complete Index) --- F1: The phantom stock shares convert to common stock on a 1-for-1 basis. F2: The phantom stock shares were acquired under the Church & Dwight Co., Inc. Deferred Compensation Plan and are to be settled in cash at such time as prescribed by the Plan. --- Signature --- /s/ /s/ Cristina Paradiso, attorney-in-fact for Brian D. Buchert (2026-03-10)