X0202 4 2007-08-01 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 2007-08-01 4 S 0 167 19.38 D 154815 D Common Stock 2007-08-01 4 S 0 111 19.39 D 154704 D Common Stock 2007-08-01 4 S 0 417 19.40 D 154287 D Common Stock 2007-08-01 4 S 0 56 19.41 D 154231 D Common Stock 2007-08-01 4 S 0 167 19.42 D 154064 D Common Stock 2007-08-01 4 S 0 278 19.43 D 153786 D Common Stock 2007-08-01 4 S 0 28 19.44 D 153758 D Common Stock 2007-08-01 4 S 0 28 19.45 D 153730 D Common Stock 2007-08-01 4 S 0 139 19.46 D 153591 D Common Stock 2007-08-01 4 S 0 176 19.47 D 153415 D Common Stock 2007-08-01 4 S 0 18 19.48 D 153397 D Common Stock 2007-08-01 4 S 0 56 19.50 D 153341 D Common Stock 2007-08-01 4 S 0 83 19.52 D 153258 D Common Stock 2007-08-01 4 S 0 55 19.53 D 153203 D Common Stock 2007-08-01 4 S 0 56 19.54 D 153147 D Common Stock 2007-08-01 4 S 0 305 19.55 D 152842 D Common Stock 2007-08-01 4 S 0 222 19.56 D 152620 D Common Stock 2007-08-01 4 S 0 83 19.57 D 152537 D Common Stock 2007-08-01 4 S 0 56 19.58 D 152481 D Common Stock 2007-08-01 4 S 0 139 19.60 D 152342 D Common Stock 2007-08-01 4 S 0 167 19.62 D 152175 D Common Stock 2007-08-01 4 S 0 83 19.65 D 152092 D Common Stock 2007-08-01 4 S 0 333 19.70 D 151759 D Common Stock 2007-08-01 4 S 0 55 19.71 D 151704 D Common Stock 2007-08-01 4 S 0 28 19.80 D 151676 D Common Stock 2007-08-01 4 S 0 56 19.87 D 151620 D Common Stock 2007-08-01 4 S 0 56 19.88 D 151564 D Common Stock 2007-08-01 4 S 0 278 19.94 D 151286 D Common Stock 2007-08-01 4 S 0 28 19.97 D 151258 D Common Stock 333124 I 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 when not in possession of material non-public information. /s/ Maria Valles as Attorney-in-Fact 2007-08-03