X0202 5 2007-12-31 0 0 0 0001357326 Riverbed Technology, Inc. RVBD 0001185068 SCHAEPE CHRISTOPHER J 2200 SAND HILL ROAD MENLO PARK CA 94025 1 0 0 0 Common Stock 2007-08-10 5 G 0 250 0 D 100546 D Common Stock 3500000 I By Lightspeed Entities The number of securities includes 107,188 shares held directly by Lightspeed Venture Partners Entrepreneur VI, L.P., 14,121 shares held directly by Lightspeed Venture Partners Entrepreneur VI-A, L.P., 275,969 shares held directly by Lightspeed Venture Partners VI Cayman, L.P., 3,079,642 shares held directly by Lightspeed Venture Partners VI, L.P. and 23,080 shares held directly by Lightspeed Venture Partners VI-A, L.P. The general partner of the Lightspeed Entities is Venture Investors General Partner L.L.C. ("VIGP") and the managing members of VIGP are Christopher J. Schaepe, Gill Cogan, Barry Eggers, Ravi Mhatre, Peter Nieh and Carl Showalter. Each of the managing members exercises shared voting and investment power over the shares held directly by the Lightspeed Entities. Each managing member disclaims beneficial ownership of the shares held by the Lightspeed Entities except to the extent of his pecuniary interest therein. /s/ Christopher Schaepe 2008-02-12