Definitive Additional Materials



Washington, D.C. 20549


Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934

(Amendment No.     )

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¨ Preliminary Proxy Statement


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¨ Definitive Proxy Statement


x Definitive Additional Materials


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*** Exercise Your Right to Vote ***

Important Notice Regarding the Availability of Proxy Materials for the

Shareholder Meeting to Be Held on May 28, 2013.



                    MERCK & CO., INC.



Meeting Information            


      Meeting Type:         Annual    


For Shareholders as of:



April 1, 2013



Date:    May 28, 2013     Time:



  10:30 a.m. Eastern Time



Location:   Bridgewater Marriott


    700 Commons Way


    Bridgewater, New Jersey





You are receiving this communication because you hold shares in the company named above.



P. O. BOX 100



This is not a ballot. You cannot use this notice to vote these shares. This communication presents only an overview of the more complete proxy materials that are available to you on the Internet. You may view the proxy materials online at or easily request a paper copy (see reverse side).


We encourage you to access and review all of the important information contained in the proxy materials before voting.



See the reverse side of this notice to obtain proxy materials and voting instructions.




  Before You Vote 


How to Access the Proxy Materials



Proxy Materials Available to VIEW or RECEIVE:




How to View Online:

Have the information that is printed in the box marked by the arrow LOGO (located on the following page) and visit:


How to Request and Receive a PAPER or ELECTRONIC copy by E-MAIL:

If you want to receive a paper or electronic copy of these documents by e-mail, you must request one. There is NO charge for requesting a copy. Please choose one of the following methods to make your request:


                             1) BY INTERNET:

                              2) BY TELEPHONE:    1-800-579-1639

                              3) BY E-MAIL*:  


*   If requesting materials by e-mail, please send a blank e-mail with the information that is printed in the box marked by the arrow LOGO (located on the following page) in the subject line.


Requests, instructions and other inquiries sent to this e-mail address will NOT be forwarded to your investment advisor. Please make the request as instructed above on or before May 14, 2013 to facilitate timely delivery.




  How To Vote 


Please Choose One of the Following Voting Methods



Vote In Person: Many shareholder meetings have attendance requirements including, but not limited to, the possession of an attendance ticket issued by the entity holding the meeting. Please check the meeting materials for any special requirements for meeting attendance. At the meeting, you will need to request a ballot to vote these shares.


Vote By Internet: To vote now by Internet, go to Have the information that is printed in the box marked by the arrow LOGO (located on the following page) available and follow the instructions.


Vote By Mail: You can vote by mail by requesting a paper copy of the materials, which will include a proxy card.




Voting Items            


The Board of Directors recommends a vote FOR Items 1 through 3.


1.        Election of Directors – The Board of Directors recommends a vote FOR the Nominees listed below:


2.        Ratification of the appointment of the Company’s independent registered public accounting firm for 2013.


3.        Advisory vote to approve executive compensation.


1a.   Leslie A. Brun



1b.   Thomas R. Cech


The Board of Directors recommends a vote AGAINST Items 4 through 7.



1c.    Kenneth C. Frazier



4.        Shareholder proposal concerning shareholders’ right to act by written consent.



1d.    Thomas H. Glocer



5.        Shareholder proposal concerning special shareowner meetings.



1e.    William B. Harrison Jr.



6.        Shareholder proposal concerning a report on charitable and political contributions.



1f.     C. Robert Kidder



7.        Shareholder proposal concerning a report on lobbying activities.



1g.    Rochelle B. Lazarus



1h.    Carlos E. Represas



1i.     Patricia F. Russo



1j.     Craig B. Thompson



1k.    Wendell P. Weeks



1l.     Peter C. Wendell