X0202 4 2008-03-11 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 2008-03-11 4 S 0 100 61.50 D 27851852 D Common Stock 2008-03-11 4 S 0 92 61.52 D 27851760 D Common Stock 2008-03-11 4 S 0 8 61.51 D 27851752 D Common Stock 2008-03-11 4 S 0 100 61.56 D 27851652 D Common Stock 2008-03-11 4 S 0 100 61.57 D 27851552 D Common Stock 2008-03-11 4 S 0 100 61.54 D 27851452 D Common Stock 2008-03-11 4 S 0 200 61.17 D 27851252 D Common Stock 2008-03-11 4 S 0 100 61.16 D 27851152 D Common Stock 2008-03-11 4 S 0 200 61.46 D 27850952 D Common Stock 2008-03-11 4 S 0 100 61.35 D 27850852 D Common Stock 2008-03-11 4 S 0 100 61.38 D 27850752 D Common Stock 2008-03-11 4 S 0 100 61.64 D 27850652 D Common Stock 2008-03-11 4 S 0 100 61.42 D 27850552 D Common Stock 2008-03-11 4 S 0 200 61.26 D 27850352 D Common Stock 2008-03-11 4 S 0 200 61.32 D 27850152 D Common Stock 2008-03-11 4 S 0 100 60.86 D 27850052 D Common Stock 2008-03-11 4 S 0 100 60.95 D 27849952 D Common Stock 2008-03-11 4 S 0 18 60.94 D 27849934 D Common Stock 2008-03-11 4 S 0 82 60.88 D 27849852 D Common Stock 2008-03-11 4 S 0 200 60.96 D 27849652 D Common Stock 2008-03-11 4 S 0 200 61.18 D 27849452 D Common Stock 2008-03-11 4 S 0 200 61.33 D 27849252 D Common Stock 2008-03-11 4 S 0 118 61.08 D 27849134 D Common Stock 2008-03-11 4 S 0 52 61.07 D 27849082 D Common Stock 2008-03-11 4 S 0 30 61.03 D 27849052 D Common Stock 2008-03-11 4 S 0 200 61.36 D 27848852 D Common Stock 2008-03-11 4 S 0 100 61.84 D 27848752 D Common Stock 2008-03-11 4 S 0 100 61.84 D 27848652 D Common Stock 2008-03-11 4 S 0 100 61.94 D 27848552 D Common Stock 2008-03-11 4 S 0 100 62.14 D 27848452 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 4 /s/ Heidi Miller, by power of attorney 2008-03-13