X0306 4 2012-12-31 false 0001357326 Riverbed Technology, Inc. RVBD 0001561823 Nissenberg Brett C/O RIVERBED TECHNOLOGY, INC. 199 FREMONT STREET SAN FRANCISCO CA 94105 false true false false General Counsel and SVP Common Stock 2012-12-31 4 F false 1555 19.72 D 92653 D Common Stock 2012-12-31 4 F false 24516 19.72 D 68137 D This represents a disposition of shares to the company to satisfy tax withholding obligations with respect to the vesting of Restricted Stock Units. This is not a sale of shares in the market. /s/ Brett Nissenberg 2013-01-02