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 0 500 57.13 D 27764499 D Common Stock 2008-04-16 4 S 0 100 57.11 D 27764399 D Common Stock 2008-04-16 4 S 0 100 57.08 D 27764299 D Common Stock 2008-04-16 4 S 0 300 57.06 D 27763899 D Common Stock 2008-04-16 4 S 0 100 57.07 D 27763799 D Common Stock 2008-04-16 4 S 0 100 57.25 D 27763699 D Common Stock 2008-04-16 4 S 0 200 57.32 D 27763499 D Common Stock 2008-04-16 4 S 0 200 57.28 D 27763299 D Common Stock 2008-04-16 4 S 0 100 57.17 D 27763199 D Common Stock 2008-04-16 4 S 0 100 57.15 D 27763099 D Common Stock 2008-04-16 4 S 0 100 57.20 D 27762999 D Common Stock 2008-04-16 4 S 0 1000 57.29 D 27761999 D Common Stock 2008-04-16 4 S 0 300 57.30 D 27761699 D Common Stock 2008-04-16 4 S 0 100 57.33 D 27761599 D Common Stock 2008-04-16 4 S 0 100 57.31 D 27761499 D Common Stock 2008-04-16 4 S 0 100 57.26 D 27761399 D Common Stock 2008-04-16 4 S 0 100 57.27 D 27761299 D Common Stock 2008-04-16 4 S 0 100 57.40 D 27761199 D Common Stock 2008-04-16 4 S 0 100 57.61 D 27761099 D Common Stock 2008-04-16 4 S 0 100 57.62 D 27760999 D Common Stock 2008-04-16 4 S 0 200 57.29 D 27760799 D Common Stock 2008-04-16 4 S 0 98 57.26 D 27760701 D Common Stock 2008-04-16 4 S 0 102 57.27 D 27760599 D Common Stock 2008-04-16 4 S 0 100 57.25 D 27760499 D Common Stock 2008-04-16 4 S 0 100 57.53 D 27760399 D Common Stock 2008-04-16 4 S 0 100 57.24 D 27760299 D Common Stock 2008-04-16 4 S 0 100 57.19 D 27760199 D Common Stock 2008-04-16 4 S 0 100 57.44 D 27760099 D Common Stock 2008-04-16 4 S 0 100 57.59 D 27759999 D Common Stock 2008-04-16 4 S 0 300 57.64 D 27759699 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 2008-04-17