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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(Print or Type Responses)

1. Name and Address of Reporting Person * NORDAL GREGORY E   2. Issuer Name and Ticker or Trading Symbol DUN & BRADSTREET CORP/NW [DNB] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Leader - International (Last) (First) (Middle) 103 JFK PARKWAY 3. Date of Earliest Transaction (Month/Day/Year) 05/13/2005 (Street) SHORT HILLS, NJ 07078 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 05/13/2005   M   982 A $ 12.9088 8,652 D   Common Stock 05/13/2005   M   1,088 A $ 14.0731 9,740 D   Common Stock 05/13/2005   M   4,105 A $ 16.892 13,845 D   Common Stock 05/13/2005   M   3,950 A $ 14.4083 17,795 D   Common Stock 05/13/2005   M   2,220 A $ 14.0381 20,015 D   Common Stock 05/13/2005   M   10,866 A $ 23.7188 30,881 D   Common Stock 05/13/2005   M   2,933 A $ 36.16 33,814 D   Common Stock 05/13/2005   M   3,665 A $ 53.3 37,479 D   Common Stock 05/13/2005   S   600 D $ 60.21 36,879 D   Common Stock 05/13/2005   S   400 D $ 60.22 36,479 D   Common Stcok 05/13/2005   S   1,600 D $ 60.23 34,879 D   Common Stock 05/13/2005   S   500 D $ 60.24 34,379 D   Common Stock 05/13/2005   S   1,300 D $ 60.26 33,079 D   Common Stock 05/13/2005   S   100 D $ 60.27 32,979 D   Common Stock 05/13/2005   S   200 D $ 60.29 32,779 D   Common Stock 05/13/2005   S   100 D $ 60.33 32,679 D   Common Stock 05/13/2005   S   200 D $ 60.34 32,479 D   Common Stock 05/13/2005   S   500 D $ 60.36 31,979 D   Common Stcok 05/13/2005   S   1,700 D $ 60.37 30,279 D   Common Stock 05/13/2005   S   400 D $ 60.38 29,879 D   Common Stock 05/13/2005   S   1,600 D $ 60.39 28,279 D   Common Stock 05/13/2005   S   800 D $ 60.4 27,479 D   Common Stock 05/13/2005   S   10,000 D $ 60.41 17,479 D   Common Stock 05/13/2005   S   1,500 D $ 60.42 15,979 D   Common Stock 05/13/2005   S   2,300 D $ 60.43 13,679 D   Common Stock 05/13/2005   S   1,800 D $ 60.44 11,879 D   Common Stock 05/13/2005   S   200 D $ 60.45 11,679 D   Common Stock 05/13/2005   S   200 D $ 60.46 11,479 D   Common Stock 05/13/2005   S   300 D $ 60.47 11,179 D   Common Stock 05/13/2005   S   100 D $ 60.48 11,079 D

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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

Non-Qualified Stock Option - right to buy

$ 12.9088

05/13/2005

M

982

07/16/2001

07/15/2007

Common Stock

982

$ 0

0

D

Non-Qualified Stock Option - right to buy

$ 14.0731

05/13/2005

M

1,088

12/21/2001

12/22/2007

Common Stock

1,088

$ 0

0

D

Non-Qualified Stock Option - right to buy

$ 16.892

05/13/2005

M

4,105

07/01/2003

07/01/2008

Common Stock

4,105

$ 0

0

D

Non-Qualified Stock Option - right to buy

$ 14.4083

05/13/2005

M

3,950

12/21/2002(1)

12/21/2009

Common Stock

3,950

$ 0

0

D

Non-Qualified Stock Option - right to buy

$ 14.0381

05/13/2005

M

2,220

01/19/2003(1)

01/19/2010

Common Stock

2,220

$ 0

0

D

Non-Qualified Stock Option - right to buy

$ 23.7188

05/13/2005

M

10,866

12/04/2003(2)

12/04/2010

Common Stock

10,866

$ 0

5,434

D

Non-Qualified Stock Option - right to buy

$ 36.16

05/13/2005

M

2,933

12/19/2004(2)

12/19/2011

Common Stock

2,933

$ 0

5,867

D

Non-Qualified Stock Option - right to buy

$ 53.3

05/13/2005

M

3,665

02/09/2005(3)

02/09/2014

Common Stock

3,665

$ 0

10,995

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
NORDAL GREGORY E 103 JFK PARKWAY SHORT HILLS, NJ 07078			Leader - International

Signatures

/s/ Christine M. Cappuccia for Gregory E. Nordal		05/17/2005
**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)	The option vested in three equal annual installments beginning on the date indicated.
(2)	One-third of the option vests each year beginning on the date indicated.
(3)	One-fourth of the option vests each year beginning on the date indicated.
Remarks: This is Form 1 of 2, detailing the Reporting Person's various May 13, 2005 stock transactions.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.