Church & Dwight (CHD)

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-08-11 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: CHURCH & DWIGHT CO INC /DE/ (CHD) CIK: 0000313927 --- Reporting Owner --- Name: IRWIN BRADLEY C CIK: 0001379399 Role: Director --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock Date: 2026-08-11 | Code: M (Exercise of derivative) Shares: +4,300 | Price: $77.33 Total Value: $332,519.00 Shares Owned After: 39,973.9768 | Ownership: D (Direct) [Transaction #2] Security: Common Stock Date: 2026-08-11 | Code: S (Open market sale) Shares: -4,300 | Price: $102.69 Total Value: $441,575.17 Shares Owned After: 35,673.9768 | Ownership: D (Direct) Footnotes: [F1] The price in Column 4 is a weighted average price. The prices actually paid in this transaction range from $102.6901 to $102.72. Detailed information regarding the number of shares sold at each separate price will be provided upon request by the Commission staff, the Issuer or a security holder of the Issuer. --- Derivative Transactions --- [Transaction #1] Security: Stock Option (right to buy) Date: 2026-08-11 | Code: M (Exercise of derivative) Shares: -4,300 | Price: $0.00 Exercisable: N/A | Expires: 2029-06-17 Shares Owned After: 4,300 | Ownership: D (Direct) --- Holdings --- [Holding #1] Security: Common Stock Ownership: D (Direct) [Holding #2] Security: Common Stock Ownership: D (Direct) --- Footnotes (Complete Index) --- F1: The price in Column 4 is a weighted average price. The prices actually paid in this transaction range from $102.6901 to $102.72. Detailed information regarding the number of shares sold at each separate price will be provided upon request by the Commission staff, the Issuer or a security holder of the Issuer. --- Signature --- /s/ /s/ Cristina Paradiso, attorney-in-fact for Bradley C. Irwin (2026-08-12)