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 *   Idzorek Thomas 2. Date of Event Requiring Statement (Month/Day/Year) 05/31/2012 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 5. If Amendment, Date Original Filed(Month/Day/Year) (Street) CHICAGO, IL 60602 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 4,045 D   Common Stock (Restricted Stock Units) 325 (1) D   Common Stock (Restricted Stock Units) 1,046 (2) D   Common Stock (Restricted Stock Units) 314 (2) D   Common Stock (Restricted Stock Units) 153 (3) D   Common Stock (Restricted Stock Units) 3,273 (4) D   Common Stock (Restricted Stock Units) 3,608 (5) D   Common Stock (Restricted Stock Units) 28 (6) D Â

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

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	Â	Â	  Pres., Investment Management	Â

Signatures

Heidi Miller, by power of attorney		05/31/2012
**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)	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.

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