X0202 4 2008-03-04 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 2008-03-04 4 S 0 300 64.54 D 27879452 D Common Stock 2008-03-04 4 S 0 300 64.39 D 27879152 D Common Stock 2008-03-04 4 S 0 300 64.82 D 27878852 D Common Stock 2008-03-04 4 S 0 300 64.695 D 27878552 D Common Stock 2008-03-04 4 S 0 200 64.74 D 27878352 D Common Stock 2008-03-04 4 S 0 100 64.76 D 27878252 D Common Stock 2008-03-04 4 S 0 300 64.655 D 27877952 D Common Stock 2008-03-04 4 S 0 300 64.69 D 27877652 D Common Stock 2008-03-04 4 S 0 300 64.70 D 27877352 D Common Stock 2008-03-04 4 S 0 138 64.68 D 27877214 D Common Stock 2008-03-04 4 S 0 100 64.23 D 27877114 D Common Stock 2008-03-04 4 S 0 200 64.31 D 27876914 D Common Stock 2008-03-04 4 S 0 100 64.18 D 27876814 D Common Stock 2008-03-04 4 S 0 100 64.20 D 27876714 D Common Stock 2008-03-04 4 S 0 100 64.26 D 27876614 D Common Stock 2008-03-04 4 S 0 100 64.34 D 27876514 D Common Stock 2008-03-04 4 S 0 100 64.50 D 27876414 D Common Stock 2008-03-04 4 S 0 400 64.56 D 27876014 D Common Stock 2008-03-04 4 S 0 300 64.70 D 27875714 D Common Stock 2008-03-04 4 S 0 300 64.67 D 27875414 D Common Stock 2008-03-04 4 S 0 300 64.65 D 27875114 D Common Stock 2008-03-04 4 S 0 200 64.77 D 27874914 D Common Stock 2008-03-04 4 S 0 100 64.63 D 27874814 D Common Stock 2008-03-04 4 S 0 200 64.18 D 27874614 D Common Stock 2008-03-04 4 S 0 100 63.74 D 27874514 D Common Stock 2008-03-04 4 S 0 100 63.75 D 27874414 D Common Stock 2008-03-04 4 S 0 100 63.89 D 27874314 D Common Stock 2008-03-04 4 S 0 300 63.97 D 27874014 D Common Stock 2008-03-04 4 S 0 100 64.17 D 27873914 D Common Stock 2008-03-04 4 S 0 300 64.49 D 27873614 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 3 /s/ Heidi Miller, by power of attorney 2008-03-06