X0306 4 2013-04-24 0 0001037760 CEPHEID CPHD 0001298084 Brown Thomas D C/O CEPHEID 904 CARIBBEAN DRIVE SUNNYVALE CA 94089 1 0 0 0 Common Stock 2013-04-24 4 M 0 1050 0 A 26338 D Restricted Stock Units 0 2013-04-24 4 M 0 1050 0 D Common Stock 1050 0 D Vesting of restricted stock units ("RSUs") granted to the Reporting Person on April 24, 2012. Each RSU represents a contingent right to receive one share of the Issuer's common stock. 100% of the RSUs vest on the one-year anniversary of the grant date, subject to the continuing employment of the Reporting Person on the vesting date. Shares of the Issuer's common stock will be delivered to the Reporting Person upon vesting. /s/ Thomas D. Brown by Joseph H. Smith, Attorney-in-Fact 2013-04-25