Security Agreement

Recorded: 2003-12-05 Received: 2003-12-05 Pages: 12

Assignor

EXELIXIS, INC.

Executed: 2003-12-03

Assignee

SMITHKLINE BEECHAM CORPORATION

2301 RENAISSANCE BLVD., BLVD. #510, ATTN: VICE PRESIDENT, ALLIANCE AND JOINT VENTURE MANAGEMENT, KING OF PRUSSIA, PA, 19406, UNITED STATES

Covered Properties (3)

Human Adam-10 Inhibitors

PCT: PCTUS2002039816 ↗

Kinase modulators

Application: 60/426,680 →

Power management of a battery operated computer system based on battery status

Application: 10/269,610 →