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 * BROWN CURTIS   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) Chief Content & Tech Officer (Last) (First) (Middle) 103 JFK PARKWAY 3. Date of Earliest Transaction (Month/Day/Year) 03/01/2018 (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 03/01/2018   M   1,394 (1) A $ 0 7,639 D   Common Stock 03/01/2018   M   2,951 (2) A $ 0 10,590 D   Common Stock 03/01/2018   F   1,458 (3) D $ 125.49 9,132 D

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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

Leveraged Restricted Stock Units

(1)

03/01/2018

M

1,406 (1)

(1)

03/01/2020

Common Stock

1,394 (1)

$ 0

2,814

D

Leveraged Restricted Stock Units

(2)

03/01/2018

M

2,359 (2)

(2)

03/01/2019

Common Stock

2,951 (2)

$ 0

2,360

D

Leveraged Restricted Stock Units

(4)

03/01/2018

A

4,383 (4)

(4)

03/01/2021

Common Stock

4,383 (4)

$ 0

4,383

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
BROWN CURTIS 103 JFK PARKWAY SHORT HILLS, NJ 07078			Chief Content & Tech Officer

Signatures

/s/ Karen K. Pettiford-Wilson for Curtis D. Brown by POA previously filed		03/05/2018
**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)	Represents the vesting and payout of the first tranche (1/3) of the leveraged restricted stock units (4,220) granted on March 1, 2017 at 99.2% of target based on the issuer's stock price performance during the performance period from 1/1/2017 - 12/31/2017.
(2)	Represents the vesting and payout of the second tranche (1/3) of the leveraged restricted stock units (7,078) granted on March 1, 2016 at 125.1% of target based on the issuer's stock performance during the performance period from 1/1/2016 - 12/31/2017 and includes 592 additional shares above the target number of shares originally reported.
(3)	To satisfy tax withholding obligations relating to the vesting of shares of Common Stock previously awarded, shares were withheld from the vested amount.
(4)	Each performance share represents a contingent right for the reporting person to receive, on each of the first, second and third anniversaries of the date of the grant, a distribution of common stock equal to 0% to 200% of 1/3 of the reported target performance shares based on the issuer's stock price performance during the designated performance periods, as follows: the first distribution is tied to the issuer's one-year stock price performance (1/1/2018 to 12/31/2018); the second distribution is tied to the issuer's two-year stock price performance (1/1/2018 to 12/31/2019); and the third distribution is tied to the issuer's three-year stock price performance (1/1/2018 to 12/31/2020).

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