X0202 4 2008-05-14 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 2008-05-14 4 S 0 114 74.05 D 27651485 D Common Stock 2008-05-14 4 S 0 100 73.97 D 27651385 D Common Stock 2008-05-14 4 S 0 200 73.89 D 27651185 D Common Stock 2008-05-14 4 S 0 200 74.07 D 27650985 D Common Stock 2008-05-14 4 S 0 100 74.18 D 27650885 D Common Stock 2008-05-14 4 S 0 93 74.03 D 27650792 D Common Stock 2008-05-14 4 S 0 300 73.84 D 27650492 D Common Stock 2008-05-14 4 S 0 100 73.85 D 27650392 D Common Stock 2008-05-14 4 S 0 100 74.02 D 27650292 D Common Stock 2008-05-14 4 S 0 100 73.98 D 27650192 D Common Stock 2008-05-14 4 S 0 100 74.05 D 27650092 D Common Stock 2008-05-14 4 S 0 100 73.83 D 27649992 D Common Stock 2008-05-14 4 S 0 100 73.88 D 27649892 D Common Stock 2008-05-14 4 S 0 100 73.92 D 27649792 D Common Stock 2008-05-14 4 S 0 100 73.94 D 27649692 D Common Stock 2008-05-14 4 S 0 100 74.01 D 27649592 D Common Stock 2008-05-14 4 S 0 100 74.24 D 27649492 D Common Stock 2008-05-14 4 S 0 100 74.03 D 27649392 D Common Stock 2008-05-14 4 S 0 200 74.04 D 27649192 D Common Stock 2008-05-14 4 S 0 100 73.96 D 27649092 D Common Stock 2008-05-14 4 S 0 300 73.95 D 27648792 D Common Stock 2008-05-14 4 S 0 100 73.85 D 27648692 D Common Stock 2008-05-14 4 S 0 300 73.99 D 27648392 D Common Stock 2008-05-14 4 S 0 200 73.89 D 27648192 D Common Stock 2008-05-14 4 S 0 264 74.03 D 27647928 D Common Stock 2008-05-14 4 S 0 143 74.02 D 27647785 D Common Stock 2008-05-14 4 S 0 100 74.01 D 27647685 D Common Stock 2008-05-14 4 S 0 200 74.07 D 27647485 D Common Stock 2008-05-14 4 S 0 100 74.17 D 27647385 D Common Stock 2008-05-14 4 S 0 100 74.05 D 27647285 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 2008-05-15