UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
 
SCHEDULE 14A
 
Proxy Statement Pursuant to Section 14(a) of
the Securities Exchange Act of 1934 (Amendment No.     )

Filed by the Registrant  x	
 	
Filed by a Party other than the Registrant  o	
 	
Check the appropriate box:	
o	Preliminary Proxy Statement	
o	Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))	
o	Definitive Proxy Statement	
x	Definitive Additional Materials	
o	Soliciting Material under §240.14a-12	
 	
Morningstar, Inc.	
(Name of Registrant as Specified In Its Charter)	

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)	
 	
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o	Check box if any part of the fee is offset as provided by Exchange Act Rule 0-11(a)(2) and identify the filing for which the offsetting fee was paid previously. Identify the previous filing by registration statement number, or the Form or Schedule and the date of its filing.	
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Your Vote Counts! MORNINGSTAR, INC. 2021 Annual Meeting Vote by May 13, 2021 11:59 PM ET MORNINGSTAR, INC. 22 WEST WASHINGTON STREET CHICAGO, IL 60602 FLASHID-JOB# You invested in MORNINGSTAR, INC. and it's time to vote! You have the right to vote on proposals being presented at the Annual Meeting. This is an important notice regarding the availability of proxy material for the shareholder meeting to be held on May 14, 2021. Get informed before you vote View the Annual Report, Notice & Proxy Statement online OR you can receive a free paper or email copy of the material(s) by requesting prior to May 02, 2021. If you would like to request a copy of the material(s) for this and/or future shareholder meetings, you may (1) visit www.ProxyVote.com, (2) call 1-800-579-1639 or (3) send an email to sendmaterial@proxyvote.com. If sending an email, please include your control number (indicated below) in the subject line. Unless requested, you will not otherwise receive a paper or email copy. Smartphone users Point your camera here and vote without entering a control number Vote Virtually at the Meeting* May 14, 2021 9:00 AM CDT Virtually at: www.virtualshareholdermeeting.com/MORN2021 *Please check the meeting materials for any special requirements for meeting attendance. For complete information and to vote, visit www.ProxyVote.com Control # XXXX XXXX XXXX XXXX

Vote at www.ProxyVote.com  THIS IS NOT A VOTABLE BALLOT This is an overview of the proposals being presented at the upcoming shareholder meeting. Please follow the instructions on the reverse side to vote these important matters. Board Recommends Voting Items FLASHID-JOB# Prefer to receive an email instead? While voting on www.ProxyVote.com, be sure to click “Sign up for E-delivery”. 1.Election of Directors Nominees: 1a.Joe Mansueto For 1b.Kunal Kapoor For 1c.Robin Diamonte For 1d.Cheryl Francis For 1e.Steve Joynt For 1f. Steve Kaplan For 1g.Gail Landis For 1h.Bill Lyons For 1i.Doniel Sutton For 1j.Caroline Tsay For 2.Approve the Morningstar, Inc. Amended and Restated 2011 Stock Incentive Plan. For 3.Advisory vote to approve executive compensation. For 4.Ratification of the appointment of KPMG LLP as Morningstar's independent registered public accounting firm for 2021. For NOTE: Such other business as may properly come before the meeting or any adjournment thereof.