Form 4 Filing for Richard A. Dierker

This filing details a transaction by Richard A. Dierker, President and CEO of CHURCH & DWIGHT CO INC /DE/. On September 15, 2026, Dierker acquired 45.728 shares of Phantom Stock, which convert to common stock on a 1-for-1 basis. The transaction was made under the company's Deferred Compensation Plan and is to be settled in cash. The price per share was $94.58, and following this transaction, Dierker holds 18198.77 shares of Phantom Stock. The filing is made on Form 4 and was signed on September 16, 2026.