FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person * SIPIA JOSEPH A JR   2. Issuer Name and Ticker or Trading Symbol CHURCH & DWIGHT CO INC /DE/ [CHD] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Executive VP, Pres. & COO SPD (Last) (First) (Middle) 469 NORTH HARRISON STREET 3. Date of Earliest Transaction (Month/Day/Year) 11/10/2009 (Street) PRINCETON, NJ 08543 4. If Amendment, Date 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 (City) (State) (Zip) 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 11/10/2009   M   11,550 A $ 19.5934 19,186.7303 (1) (2) D   Common Stock 11/10/2009   M   5,036 A $ 22.3734 24,222.7303 D   Common Stock 11/10/2009   M   3,536 A $ 21.8567 27,758.7303 D   Common Stock 11/10/2009   M   19,050 A $ 29.5 46,808.7303 D   Common Stock 11/10/2009   S   39,172 D $ 59 7,636.7303 D   Common Stock               867.273 I Prfit Shring/saving Plan Trust

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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 Underlying Securities (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 of Derivative Security: 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

$ 19.5934

11/10/2009

M

11,550

02/01/2005

02/01/2012

Common Stock

11,550

$ 0

0

D

Stock Option

$ 22.3734

11/10/2009

M

5,036

06/17/2005

06/17/2012

Common Stock

5,036

$ 0

0

D

Stock Option

$ 21.8567

11/10/2009

M

3,536

06/16/2006

06/16/2013

Common Stock

3,536

$ 0

0

D

Stock Option

$ 29.5

11/10/2009

M

19,050

06/14/2007

06/14/2014

Common Stock

19,050

$ 0

0

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
SIPIA JOSEPH A JR 469 NORTH HARRISON STREET PRINCETON, NJ 08543			Executive VP, Pres. & COO SPD

Signatures

/s/ Andrew C. Forsell, attorney-in-fact for Joseph A. Sipia, Jr.		11/12/2009
**Signature of Reporting Person		Date

Explanation of Responses:

*	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).
(1)	Holdings have been adjusted to reflect dividends paid to reporting person under the Church & Dwight Co., Inc. Dividend Reinvestment Plan.
(2)	Holdings have been adjusted to reflect shares purchased in the Church & Dwight Co., Inc. Employee Stock Purchase Plan.

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