Ardea Biosciences, Inc.

NASDAQ: RDEA

Investor Relations

Case Name	Date Filed	Updated	Status	Securities
Ardea Biosciences, Inc. (NASDAQ:RDEA) Investor Files Lawsuit Against Directors To Stop Block Merger With AstraZeneca	04/24/2012	04/25/ 2012	Lawsuit Filed	NASDAQ: RDEA

Title	Securities
Ardea Biosciences, Inc. (NASDAQ:RDEA) Investor Investigation Over Potential Breaches Of Fiduciary Duties In Connection With The Proposed Merger with AstraZeneca	NASDAQ: RDEA