X0202 4 2008-03-24 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 2008-03-24 4 S 0 300 62.94 D 27819852 D Common Stock 2008-03-24 4 S 0 200 63.21 D 27819652 D Common Stock 2008-03-24 4 S 0 200 63.33 D 27819452 D Common Stock 2008-03-24 4 S 0 100 63.31 D 27819352 D Common Stock 2008-03-24 4 S 0 600 63.41 D 27818752 D Common Stock 2008-03-24 4 S 0 100 63.39 D 27818652 D Common Stock 2008-03-24 4 S 0 200 63.34 D 27818452 D Common Stock 2008-03-24 4 S 0 100 63.38 D 27818352 D Common Stock 2008-03-24 4 S 0 100 63.44 D 27818252 D Common Stock 2008-03-24 4 S 0 200 63.47 D 27818052 D Common Stock 2008-03-24 4 S 0 300 63.51 D 27817752 D Common Stock 2008-03-24 4 S 0 400 63.65 D 27817352 D Common Stock 2008-03-24 4 S 0 300 63.77 D 27817052 D Common Stock 2008-03-24 4 S 0 100 63.88 D 27816952 D Common Stock 2008-03-24 4 S 0 300 63.73 D 27816652 D Common Stock 2008-03-24 4 S 0 400 63.80 D 27816252 D Common Stock 2008-03-24 4 S 0 200 63.92 D 27816052 D Common Stock 2008-03-24 4 S 0 70 63.97 D 27815982 D Common Stock 2008-03-24 4 S 0 300 63.99 D 27815682 D Common Stock 2008-03-24 4 S 0 300 64.16 D 27815382 D Common Stock 2008-03-24 4 S 0 200 64.46 D 27815182 D Common Stock 2008-03-24 4 S 0 300 64.48 D 27814882 D Common Stock 2008-03-24 4 S 0 100 64.49 D 27814782 D Common Stock 2008-03-24 4 S 0 100 64.64 D 27814682 D Common Stock 2008-03-24 4 S 0 300 64.66 D 27814382 D Common Stock 2008-03-24 4 S 0 300 64.71 D 27814082 D Common Stock 2008-03-24 4 S 0 10 64.85 D 27814072 D Common Stock 2008-03-24 4 S 0 100 63.39 D 27813972 D Common Stock 2008-03-24 4 S 0 171 63.47 D 27813801 D Common Stock 2008-03-24 4 S 0 100 63.50 D 27813701 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 2008-03-25