X0202 4 2008-02-26 0001289419 Morningstar, Inc. MORN 0001324069 Mansueto Joseph D C/O MORNINGSTAR, INC. 225 WEST WACKER DRIVE CHICAGO IL 60606 1 1 0 0 Chairman & CEO Common Stock 2008-02-26 4 S 0 300 64.42 D 27888652 D Common Stock 2008-02-26 4 S 0 200 64.87 D 27888452 D Common Stock 2008-02-26 4 S 0 300 65.34 D 27888152 D Common Stock 2008-02-26 4 S 0 290 65.45 D 27887862 D Common Stock 2008-02-26 4 S 0 300 65.75 D 27887562 D Common Stock 2008-02-26 4 S 0 100 65.99 D 27887462 D Common Stock 2008-02-26 4 S 0 200 65.97 D 27887262 D Common Stock 2008-02-26 4 S 0 100 66.04 D 27887562 D Common Stock 2008-02-26 4 S 0 600 66.06 D 27886562 D Common Stock 2008-02-26 4 S 0 100 66.08 D 27886562 D Common Stock 2008-02-26 4 S 0 148 66.05 D 27886314 D Common Stock 2008-02-26 4 S 0 100 65.53 D 27886214 D Common Stock 2008-02-26 4 S 0 100 65.54 D 27886114 D Common Stock 2008-02-26 4 S 0 744 64.99 D 27885370 D Common Stock 2008-02-26 4 S 0 23 65.31 D 27885347 D Common Stock 2008-02-26 4 S 0 390 65.36 D 27884957 D Common Stock 2008-02-26 4 S 0 200 65.59 D 27884757 D Common Stock 2008-02-26 4 S 0 100 65.57 D 27884657 D Common Stock 2008-02-26 4 S 0 100 65.84 D 27884557 D Common Stock 2008-02-26 4 S 0 200 65.82 D 27884357 D Common Stock 2008-02-26 4 S 0 50 65.91 D 27884307 D Common Stock 2008-02-26 4 S 0 100 65.95 D 27884207 D Common Stock 2008-02-26 4 S 0 300 65.94 D 27883907 D Common Stock 2008-02-26 4 S 0 297 66.03 D 27883610 D Common Stock 2008-02-26 4 S 0 100 66.04 D 27883510 D Common Stock 2008-02-26 4 S 0 200 66.02 D 27883310 D Common Stock 2008-02-26 4 S 0 200 65.58 D 27883110 D Common Stock 2008-02-26 4 S 0 310 65.35 D 27882800 D Common Stock 2008-02-26 4 S 0 200 65.32 D 27882600 D Common Stock 2008-02-26 4 S 0 300 65.39 D 27882300 D The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 12, 2007. Form 1 of 2 /s/ Heidi Miller, by power of attorney 2008-02-28