UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2018 Commission file number 1-10585 CHURCH & DWIGHT CO., INC. (Exact name of registrant as specified in its charter) Delaware 13-4996950 (State or other jurisdiction of incorporation or organization)(I.R.S. Employer Identification No.) 500 Charles Ewing Boulevard, Ewing, N.J. 08628 (Address of principal e ...