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

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES
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                      	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	                      	

1. Name and Address of Reporting Person *

Idzorek Thomas	2. Date of Event Requiring Statement (MM/DD/YYYY)
5/31/2012 
	3. Issuer Name and Ticker or Trading Symbol

Morningstar, Inc. [MORN]	
(Last)        (First)        (Middle)

C/O MORNINGSTAR, INC., 22 WEST WASHINGTON STREET	4. Relationship of Reporting Person(s) to Issuer (Check all applicable)

_____ Director                            _____ 10% Owner
___ X ___ Officer (give title below)          _____ Other (specify below)
Pres., Investment Management /	
(Street)

CHICAGO, IL 60602       

(City)              (State)              (Zip)	5. If Amendment, Date Original Filed (MM/DD/YYYY)

	6. Individual or Joint/Group Filing (Check Applicable Line)

_ X _ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person	

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  	4045  	D  	
 	
Common Stock (Restricted Stock Units)  	325   (1)	D  	
 	
Common Stock (Restricted Stock Units)  	1046   (2)	D  	
 	
Common Stock (Restricted Stock Units)  	314   (2)	D  	
 	
Common Stock (Restricted Stock Units)  	153   (3)	D  	
 	
Common Stock (Restricted Stock Units)  	3273   (4)	D  	
 	
Common Stock (Restricted Stock Units)  	3608   (5)	D  	
 	
Common Stock (Restricted Stock Units)  	28   (6)	D  	

Table II - Derivative Securities Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities)	
1. Title of Derivate Security
(Instr. 4)	2. Date Exercisable and Expiration Date
(MM/DD/YYYY)	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				

Explanation of Responses:	
(  1) 	Each restricted stock unit represents a contingent right to receive one share of Morningstar, Inc. common stock. The restricted stock units vest in four equal annual installments beginning May 15, 2010.	
(  2) 	Each restricted stock unit represents a contingent right to receive one share of Morningstar, Inc. common stock. The restricted stock units vest in four equal annual installments beginning May 15, 2011.	
(  3) 	Each restricted stock unit represents a contingent right to receive one share of Morningstar, Inc. common stock. The restricted stock units vest in four equal annual installments beginning November 15, 2011.	
(  4) 	Each restricted stock unit represents a contingent right to receive one share of Morningstar, Inc. common stock. The restricted stock units vest in four equal annual installments beginning May 15, 2012.	
(  5) 	Each restricted stock unit represents a contingent right to receive one share of Morningstar, Inc. common stock. The restricted stock units vest in four equal annual installments beginning May 15, 2013.	
(  6) 	Includes 28.9993 restricted stock units acquired pursuant to a dividend reinvestment feature of the Morningstar, Inc. 2011 Stock Incentive Plan.	

Reporting Owners	
Reporting Owner Name / Address	Relationships	
	Director	10% Owner	Officer	Other	
Idzorek Thomas
C/O MORNINGSTAR, INC.
22 WEST WASHINGTON STREET
CHICAGO, IL 60602			Pres., Investment Management		

Signatures		
Heidi Miller, by power of attorney		5/31/2012	
** Signature of Reporting Person		Date

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.	
*	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).	
Note:	File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.	
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.	

POWER OF ATTORNEY
Know all by these presents, that the
undersigned hereby constitutes and appoints each of Joe Mansueto, Rita Bentzler,Richard Scott Cooley, Heidi Miller, Peter Olson, Richard Robbins, and D. Scott Schilling, signing singly, the undersigneds true and lawful attorney-in-fact to:
1. Execute for and on behalf of the undersigned, in the undersigneds capacity as an officer and/or director of Morningstar, Inc. (Morningstar), Forms 3, 4 and 5 in accordance with Section 16(a) of the Securities Exchange Act of 1934 and the rules and regulations promulgated thereunder;
2. Do and perform any and all acts for and on behalf of the undersigned which may be necessary or desirable to complete and execute any such Form 3, 4 or 5, complete and execute any amendment or amendments thereto and timely file such form with the United States Securities and Exchange Commission and any national quotation system, national securities exchange, stock exchange or similar authority; and
3. Take any other action of any type whatsoever in connection with the foregoing which, in the opinion of such attorney-in- fact, may be of benefit to, in the best interest of or legally required by the undersigned, it being understood that the documents executed by such attorney-in-fact on behalf of the undersigned pursuant to this Power of Attorney shall be in such form and shall contain such terms and conditions as such attorney-in-fact may approve in such attorney-in-facts discretion.
The undersigned hereby grants to each such attorney-in-fact full power and authority to do and perform any and every act and
thing whatsoever requisite, necessary or proper to be done in the exercise of any of the rights and powers herein granted, as fully to all intents and purposes as the undersigned might or could do if personally present, with full power of substitution or revocation, hereby ratifying and confirming all that such attorney-in-fact, or such
attorney-in-fact substitute or
substitutes, shall lawfully do or cause to be done by virtue of this Power of Attorney and the rights and powers herein granted. The undersigned acknowledges that the
foregoing attorneys-in-fact, in serving in such capacity at the request of the
undersigned, are not assuming, nor is
Morningstar assuming, any of the
undersigneds responsibilities to comply
with Section 16 of the Securities Exchange Act of 1934.
This Power of Attorney shall remain in full force and effect until the undersigned is no longer required to file Forms 3, 4 and 5 with respect to the undersigneds holdings of and transactions in securities issued by Morningstar, unless earlier revoked by the undersigned in a signed writing delivered to the foregoing attorneys-in-fact.
IN WITNESS WHEREOF, the undersigned has
caused this Power of Attorney to be executed as of this 29th day of May, 2012.

/s/ Thomas Idzorek
Signature

Thomas Idzorek
Print Name