Washington, D.C. 20549


Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB Number: 3235-0287
Estimated average burden
hours per response: 0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
1. Name and Address of Reporting Person*

(Last) (First) (Middle)

EWING NJ 08628

(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director 10% Owner
X Officer (give title below) Other (specify below)
VP, Controller and CAO
3. Date of Earliest Transaction (Month/Day/Year)
4. If Amendment, Date of Original Filed (Month/Day/Year)
6. Individual or Joint/Group Filing (Check Applicable Line)
X Form filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 11/21/2018 M 16,780 D $30.96 37,798 D
Common Stock 11/21/2018 S 16,780 D $64.9724(1) 21,018 D
Common Stock 10,113.6249 I Prfit Shring/saving Plan Trust
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Stock Option $30.96 11/21/2018 M 16,780 06/17/2016 06/17/2023 Common Stock 16,780 $0 33,560 D
Explanation of Responses:
1. The price in Column 4 is a weighted average price. The prices actually paid in this transaction range from $64.9524 to $64.9817. Detailed information regarding the number of shares sold at each separate price will be provided by upon request by the Commission staff, the Issuer or a security holder of the Issuer.
/s/ La Fleur Browne, attorney-in-fact for Steven J. Katz 11/23/2018
** Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

	Know all by these presents, that the undersigned hereby constitutes
 and appoints Patrick D. de Maynadier, La Fleur Browne and Andrew C.
 Forsell, and each of them, each with full power to act without the other,
 his or her true and lawful attorneys-in-fact and agents, each with full
 power of substitution and resubstitution, for him or her and in his or her
 name, place and stead, in any and all capacities, to sign all reports
 pursuant to Section 16(a) of the Securities Exchange Act of 1934, including
 all reports on Forms 3, 4 and 5 (each a ?Report?), relating to securities of
 Church & Dwight Co., Inc. (the ?Company?), and to sign any and all
 amendments to said Reports, and to file the same with the Securities and
 Exchange Commission and the New York Stock Exchange, any other national
 securities exchange on which securities of the Company may be from time to
 time listed, and/or the NASDAQ, granting unto said attorneys-in-fact and
 agents, full power and authority to do and perform each and every act and
 thing requisite and necessary to be done as fully to all intents and
 purposes as he might or could do in person, hereby ratifying and confirming
 all that each of said attorneys-in-fact and agents or any of them
 lawfully do or cause to be done by virtue hereof and to:

	(1) 	execute Reports for and on behalf of the undersigned,in the
 undersigned?s capacity as an officer and/or director of the Company, in
 accordance with Section 16(a) of the Securities Exchange Act of 1934 and the
 rules thereunder;

	(2)	do and perform any and all acts for and on behalf of the
 undersigned which may be necessary or desirable to complete and execute any
 such Reports, complete and execute any amendment or amendments thereto, and
 timely file such form with the United States Securities and Exchange
 Commission and any stock exchange or similar authority; and

	(3) 	take any other action of any type whatsoever in connection
 with the foregoing which, in the opinion of such attorney-in-fact, may be of
 benefit to, in the best interest of, or legally required by, the
 undersigned, it being understood that the documents executed by such
 attorney-in-fact on behalf of the undersigned pursuant to this power of
 Attorney shall be in such form and shall contain such terms and conditions
 as such attorney-in-fact may approve in such attorney-in-fact?s discretion.

	This Power of Attorney shall remain in full force and effect until
 the undersigned is no longer required to file Reports with respect to the
 undersigned?s holdings of and transactions in securities issued by the
 Company, unless earlier revoked by the undersigned in a signed writing
 delivered to the foregoing attorneys-in-fact.

	IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney
 to be executed as of this 28th day of January, 2015.

						/s/ Steven J. Katz