X0202 4 2008-03-18 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 2008-03-18 4 S 0 300 60.29 D 27837197 D Common Stock 2008-03-18 4 S 0 300 60.66 D 27836897 D Common Stock 2008-03-18 4 S 0 155 60.51 D 27836742 D Common Stock 2008-03-18 4 S 0 200 60.43 D 27836542 D Common Stock 2008-03-18 4 S 0 90 60.42 D 27836452 D Common Stock 2008-03-18 4 S 0 300 60.37 D 27836152 D Common Stock 2008-03-19 4 S 0 100 63.08 D 27836052 D Common Stock 2008-03-19 4 S 0 95 63.06 D 27835957 D Common Stock 2008-03-19 4 S 0 100 63.34 D 27835857 D Common Stock 2008-03-19 4 S 0 504 62.55 D 27835353 D Common Stock 2008-03-19 4 S 0 300 62.67 D 27835053 D Common Stock 2008-03-19 4 S 0 300 62.49 D 27834753 D Common Stock 2008-03-19 4 S 0 101 62.76 D 27834652 D Common Stock 2008-03-19 4 S 0 200 62.68 D 27834452 D Common Stock 2008-03-19 4 S 0 500 62.72 D 27833952 D Common Stock 2008-03-19 4 S 0 300 62.94 D 27833652 D Common Stock 2008-03-19 4 S 0 100 62.99 D 27833552 D Common Stock 2008-03-19 4 S 0 200 63.05 D 27833352 D Common Stock 2008-03-19 4 S 0 100 62.96 D 27833252 D Common Stock 2008-03-19 4 S 0 200 63.07 D 27833052 D Common Stock 2008-03-19 4 S 0 100 63.37 D 27832952 D Common Stock 2008-03-19 4 S 0 100 62.85 D 27832852 D Common Stock 2008-03-19 4 S 0 100 63.10 D 27832752 D Common Stock 2008-03-19 4 S 0 100 63.55 D 27832652 D Common Stock 2008-03-19 4 S 0 100 63.67 D 27832552 D Common Stock 2008-03-19 4 S 0 196 62.65 D 27832356 D Common Stock 2008-03-19 4 S 0 200 62.67 D 27832156 D Common Stock 2008-03-19 4 S 0 400 62.83 D 27831756 D Common Stock 2008-03-19 4 S 0 200 62.96 D 27831556 D Common Stock 2008-03-19 4 S 0 100 62.94 D 27831456 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 2 of 3 /s/ Heidi Miller, by power of attorney 2008-03-20