X0202 4 2008-05-13 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 2008-05-13 4 S 0 200 73.97 D 27653504 D Common Stock 2008-05-13 4 S 0 52 73.89 D 27653452 D Common Stock 2008-05-13 4 S 0 100 74.15 D 27653352 D Common Stock 2008-05-13 4 S 0 100 74.19 D 27653252 D Common Stock 2008-05-13 4 S 0 100 74.01 D 27653152 D Common Stock 2008-05-13 4 S 0 100 73.93 D 27653052 D Common Stock 2008-05-13 4 S 0 100 73.78 D 27652952 D Common Stock 2008-05-13 4 S 0 100 73.88 D 27652852 D Common Stock 2008-05-13 4 S 0 104 74.00 D 27652748 D Common Stock 2008-05-13 4 S 0 100 73.99 D 27652648 D Common Stock 2008-05-13 4 S 0 100 73.98 D 27652548 D Common Stock 2008-05-13 4 S 0 68 73.50 D 27652480 D Common Stock 2008-05-13 4 S 0 100 73.61 D 27652380 D Common Stock 2008-05-13 4 S 0 100 73.67 D 27652280 D Common Stock 2008-05-13 4 S 0 100 73.66 D 27652180 D Common Stock 2008-05-13 4 S 0 81 73.51 D 27652099 D Common Stock 2008-05-13 4 S 0 92 73.63 D 27652007 D Common Stock 2008-05-13 4 S 0 8 73.62 D 27651999 D Common Stock 2008-05-13 4 S 0 100 73.57 D 27651899 D Common Stock 2008-05-13 4 S 0 100 73.80 D 27651799 D Common Stock 2008-05-13 4 S 0 200 74.07 D 27651599 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 2 /s/ Heidi Miller, by power of attorney 2008-05-14