X0202 4 2008-04-16 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 2008-04-16 4 S 0 200 57.38 D 27759499 D Common Stock 2008-04-16 4 S 0 12 57.22 D 27759487 D Common Stock 2008-04-16 4 S 0 188 57.21 D 27759299 D Common Stock 2008-04-16 4 S 0 100 57.73 D 27759199 D Common Stock 2008-04-16 4 S 0 100 57.99 D 27759099 D Common Stock 2008-04-16 4 S 0 100 58.01 D 27759999 D Common Stock 2008-04-16 4 S 0 100 57.94 D 27758899 D Common Stock 2008-04-16 4 S 0 100 57.84 D 27758799 D Common Stock 2008-04-16 4 S 0 300 57.80 D 27758499 D Common Stock 2008-04-16 4 S 0 200 57.70 D 27758299 D Common Stock 2008-04-16 4 S 0 100 57.69 D 27758199 D Common Stock 2008-04-16 4 S 0 200 57.75 D 27758099 D Common Stock 2008-04-16 4 S 0 100 57.79 D 27757999 D Common Stock 2008-04-16 4 S 0 100 57.63 D 27757899 D Common Stock 2008-04-16 4 S 0 100 57.66 D 27757799 D Common Stock 2008-04-16 4 S 0 100 57.83 D 27757699 D Common Stock 2008-04-16 4 S 0 100 57.77 D 27757599 D Common Stock 2008-04-16 4 S 0 100 57.78 D 27757499 D Common Stock 2008-04-16 4 S 0 100 57.58 D 27757399 D Common Stock 2008-04-16 4 S 0 100 57.35 D 27757299 D Common Stock 2008-04-16 4 S 0 100 57.40 D 27757199 D Common Stock 2008-04-16 4 S 0 100 57.42 D 27757099 D Common Stock 2008-04-16 4 S 0 100 57.16 D 27756999 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 2008-04-17