X0303 4 2009-12-31 0001339455 Somaxon Pharmaceuticals, Inc. SOMX 0001013425 TREU JESSE I C/O DOMAIN ASSOCIATES, LLC ONE PALMER SQUARE PRINCETON NJ 08542 1 0 0 0 Common Stock 2009-12-31 4 A 0 9144 0 A 52318 D These shares are represented by restricted stock units ("RSU"s). These RSUs will vest upon the first date included within an open trading window under the Issuer's Insider Trading Policy following the first commercial sale of Silenor(R) in the United States, subject to the Reporting Person's continued service as a director of the Issuer on such date. /s/ Kathleen K. Schoemaker, Attorney-in-Fact 2010-01-04