UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of

the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): May 2, 2013

MORNINGSTAR, INC.

(Exact name of registrant as specified in its charter)

Illinois

(State or other jurisdiction

of incorporation)

000-51280

(Commission

File Number)

36-3297908

(I.R.S. Employer

Identification No.)

22 West Washington Street

Chicago, Illinois

(Address of principal executive offices)

60602

(Zip Code)

(312) 696-6000

(Registrant’s telephone number, including area code)

N/A

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

o Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 8.01. Other Events.

On May 2, 2013, Morningstar, Inc. issued a press release announcing that Morningstar has acquired its remaining 76% ownership interest in Morningstar Sweden AB from Stadsporten Citygate AB and two private investors. A copy of the press release is filed as Exhibit 99.1 to this Form 8-K.

Item 9.01. Financial Statements and Exhibits.

Include the following information:

(d) Exhibits:

Exhibit No.		Description

99.1		Press Release issued May 2, 2013.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

	MORNINGSTAR, INC.


Date: May 2, 2013	By:	/s/ Richard Robbins
	Name:	Richard Robbins
	Title:	General Counsel and Corporate Secretary

EXHIBIT INDEX

Exhibit No.		Description

99.1		Press Release issued May 2, 2013.