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 61.96 D 27848352 D Common Stock 2008-03-11 4 S 0 100 61.88 D 27848252 D Common Stock 2008-03-11 4 S 0 100 61.86 D 27848152 D Common Stock 2008-03-11 4 S 0 100 61.80 D 27848052 D Common Stock 2008-03-11 4 S 0 100 62.00 D 27847952 D Common Stock 2008-03-11 4 S 0 100 62.06 D 27847852 D Common Stock 2008-03-11 4 S 0 100 61.67 D 27847752 D Common Stock 2008-03-11 4 S 0 100 61.68 D 27847652 D Common Stock 2008-03-11 4 S 0 100 61.71 D 27847552 D Common Stock 2008-03-12 4 S 0 100 61.93 D 27847452 D Common Stock 2008-03-12 4 S 0 100 61.87 D 27847352 D Common Stock 2008-03-12 4 S 0 100 61.96 D 27847252 D Common Stock 2008-03-12 4 S 0 100 61.84 D 27847152 D Common Stock 2008-03-12 4 S 0 100 61.77 D 27847052 D Common Stock 2008-03-12 4 S 0 100 61.78 D 27846952 D Common Stock 2008-03-12 4 S 0 5 61.74 D 27846947 D Common Stock 2008-03-12 4 S 0 95 61.73 D 27846852 D Common Stock 2008-03-12 4 S 0 100 61.80 D 27846752 D Common Stock 2008-03-12 4 S 0 200 61.57 D 27846552 D Common Stock 2008-03-12 4 S 0 100 61.62 D 27846452 D Common Stock 2008-03-12 4 S 0 100 61.65 D 27846352 D Common Stock 2008-03-12 4 S 0 100 61.54 D 27846252 D Common Stock 2008-03-12 4 S 0 70 61.98 D 27846182 D Common Stock 2008-03-12 4 S 0 30 61.99 D 27846152 D Common Stock 2008-03-12 4 S 0 100 61.61 D 27846052 D Common Stock 2008-03-12 4 S 0 100 61.55 D 27845952 D Common Stock 2008-03-12 4 S 0 300 61.52 D 27845652 D Common Stock 2008-03-12 4 S 0 100 61.58 D 27845552 D Common Stock 2008-03-12 4 S 0 100 61.59 D 27845452 D Common Stock 2008-03-12 4 S 0 100 61.67 D 27845352 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 3 of 4 /s/ Heidi Miller, by power of attorney 2008-03-13