X0202 4 2007-04-02 0 0001353209 LoopNet, Inc. LOOP 0001360343 Stumme Brent C/O LOOPNET, INC. 181 W. HUNTINGTON DRIVE, SUITE 208 MONROVIA CA 91016 0 1 0 0 CFO and VP, Finance/Admin Common Stock 2007-04-02 4 S 0 458 16.51 D 198526 D Common Stock 2007-04-02 4 S 0 268 16.52 D 198258 D Common Stock 2007-04-02 4 S 0 311 16.53 D 197947 D Common Stock 2007-04-02 4 S 0 38 16.55 D 197909 D Common Stock 2007-04-02 4 S 0 1425 16.56 D 196484 D Common Stock 2007-04-02 4 S 0 450 16.57 D 196034 D Common Stock 2007-04-02 4 S 0 343 16.58 D 195691 D Common Stock 2007-04-02 4 S 0 1067 16.59 D 194624 D Common Stock 2007-04-02 4 S 0 1336 16.60 D 193288 D Common Stock 2007-04-02 4 S 0 138 16.61 D 193150 D Common Stock 2007-04-02 4 S 0 51 16.62 D 193099 D Common Stock 2007-04-02 4 S 0 87 16.63 D 193012 D Common Stock 2007-04-02 4 S 0 138 16.64 D 192874 D Common Stock 2007-04-02 4 S 0 35 16.65 D 192839 D Common Stock 2007-04-02 4 S 0 114 16.68 D 192725 D Common Stock 2007-04-02 4 S 0 14 16.69 D 192711 D Common Stock 2007-04-02 4 S 0 215 16.70 D 192496 D Common Stock 2007-04-02 4 S 0 62 16.71 D 192434 D Common Stock 2007-04-02 4 S 0 311 16.72 D 192123 D Common Stock 2007-04-02 4 S 0 35 16.73 D 192088 D Common Stock 2007-04-02 4 S 0 24 16.74 D 192064 D Common Stock 2007-04-02 4 S 0 35 16.75 D 192029 D Common Stock 2007-04-02 4 S 0 23 16.76 D 192006 D Common Stock 2007-04-02 4 S 0 69 16.77 D 191937 D Common Stock 2007-04-02 4 S 0 380 16.79 D 191557 D Common Stock 2007-04-02 4 S 0 69 16.80 D 191488 D Common Stock 2007-04-02 4 S 0 116 16.82 D 191372 D Common Stock 2007-04-02 4 S 0 519 16.83 D 190853 D Common Stock 2007-04-02 4 S 0 367 16.85 D 190486 D Common Stock 363124 I The Stumme Family Trust The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 17, 2006. /s/ Maria Valles as Attorney-in-Fact 2007-04-03