X0202 4 2008-04-01 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 2008-04-01 4 S 0 141 61.94 D 28795694 D Common Stock 2008-04-01 4 S 0 200 61.90 D 28795494 D Common Stock 2008-04-01 4 S 0 100 61.85 D 28795394 D Common Stock 2008-04-01 4 S 0 100 61.91 D 28795294 D Common Stock 2008-04-01 4 S 0 299 61.75 D 28794995 D Common Stock 2008-04-01 4 S 0 100 61.62 D 28794895 D Common Stock 2008-04-01 4 S 0 300 61.54 D 28794595 D Common Stock 2008-04-01 4 S 0 200 61.59 D 28794395 D Common Stock 2008-04-01 4 S 0 300 61.79 D 28794095 D Common Stock 2008-04-01 4 S 0 300 61.87 D 28793795 D Common Stock 2008-04-01 4 S 0 300 61.89 D 28793495 D Common Stock 2008-04-01 4 S 0 300 62.00 D 28793195 D Common Stock 2008-04-01 4 S 0 300 62.04 D 28792895 D Common Stock 2008-04-01 4 S 0 100 62.13 D 28792795 D Common Stock 2008-04-01 4 S 0 100 62.19 D 28792695 D Common Stock 2008-04-01 4 S 0 200 62.18 D 28792495 D Common Stock 2008-04-01 4 S 0 251 62.20 D 28792244 D Common Stock 2008-04-01 4 S 0 100 62.11 D 28792144 D Common Stock 2008-04-01 4 S 0 300 62.23 D 28791844 D Common Stock 2008-04-01 4 S 0 200 62.60 D 28791644 D Common Stock 2008-04-01 4 S 0 200 62.97 D 28791444 D Common Stock 2008-04-01 4 S 0 300 63.11 D 28791144 D Common Stock 2008-04-01 4 S 0 300 63.19 D 28790844 D Common Stock 2008-04-01 4 S 0 100 63.33 D 28790744 D Common Stock 2008-04-01 4 S 0 131 63.25 D 28790613 D Common Stock 2008-04-01 4 S 0 300 63.15 D 28790313 D Common Stock 2008-04-01 4 S 0 100 63.17 D 28790213 D Common Stock 2008-04-01 4 S 0 100 63.18 D 28790113 D Common Stock 2008-04-01 4 S 0 300 62.99 D 28789813 D Common Stock 2008-04-01 4 S 0 39 63.10 D 28789774 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 2008-04-03