Ownership Submission
FORM 3
 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF 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 *
  Richards Thomas E
 2. Date of Event Requiring Statement (Month/Day/Year)
06/26/2013		 3. Issuer Name and Ticker or Trading Symbol
CDW Corp [CDW]
(Last)
(First)
(Middle)
C/O CDW CORPORATION, 200 N. MILWAUKEE AVE		 4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
See Remarks
 5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

VERNON HILLS, IL 60061		 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 Beneficially Owned
1.Title of Security
(Instr. 4)		 2. Amount of Securities Beneficially Owned
(Instr. 4)		 3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)		 4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Stock, par value $0.01 1,083,619
D
 
Common Stock, par value $0.01 132,797
I
See footnote (1)
Common Stock, par value $0.01 132,798
I
See footnote (2)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)		 2. Date Exercisable and Expiration Date
(Month/Day/Year)		 3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)		 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)		 6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Employee Stock Option (Right to Buy)   (3) 12/12/2022 Common Stock 505,294 $ 17 D  

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Richards Thomas E
C/O CDW CORPORATION
200 N. MILWAUKEE AVE
VERNON HILLS, IL 60061		   X     See Remarks  

Signatures

/s/ James S. Rowe, Attorney-in-Fact 06/26/2013
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(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) Includes 132,797 shares held by the Jason J. Richards Trust which are deemed to be beneficially owned by Mr. Richards.
(2) Includes 132,798 shares held by the Lindsay M. Richards Trust which are deemed to be beneficially owned by Mr. Richards.
(3) 54,514 options were vested upon issuance at the pricing of the initial public offering of CDW Corporation, on June 26, 2013. The remaining options will vest daily on a pro rata basis commencing on June 26, 2013 and continuing through December 11, 2017.
 
Remarks:
CHAIRMAN AND CHIEF EXECUTIVE OFFICER

Exhibit List:  Exhibit 24 - Power of Attorney

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