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
¨   Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))
¨   Definitive Proxy Statement
x   Definitive Additional Materials
¨   Soliciting Material under Rule 14a-12

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*** Exercise Your Right to Vote ***

Important Notice Regarding the Availability of Proxy Materials for the

Stockholder Meeting to Be Held on May 22, 2012.













Meeting Information


Meeting Type:        Annual Meeting

For holders as of:    March 23, 2012

Date: May 22, 2012    Time: 11:00 AM CDT    

Location: The DoubleTree Hotel Chicago

                  O’Hare Airport-Rosemont

                  5460 North River Road

                  Rosemont, Illinois 60018


Admission is by admissions card. See the back cover of the proxy statement.



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





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:














1. Annual Report                 2. Notice and Proxy Statement


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 E-MAIL Copy:

If you want to receive a paper or e-mail copy of these documents, 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 8, 2012 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 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 you vote FOR all nominees for director, FOR Items 2 and 3, and AGAINST Item 4.


1.       Election of Directors



1a.   Mark C. Miller


1b.   Jack W. Schuler


1c.   Thomas D. Brown


1d.   Rod F. Dammeyer


1e.   William K. Hall


1f.    Jonathan T. Lord, M.D.


1g.   John Patience


1h.   James W.P. Reid-Anderson


1i.    Ronald G. Spaeth


2.   Ratification of the appointment of Ernst & Young LLP as the Company’s independent registered public accounting firm for 2012


3.   Advisory resolution approving the compensation paid to the Company’s executive officers


4.   Stockholder proposal requiring executives to hold equity awards until retirement


NOTE: This proxy will be voted in the best judgment of the proxies in respect of any other business that properly comes before the Annual Meeting.