X0306 4 2013-04-22 0 0001037760 CEPHEID CPHD 0001189846 BISHOP JOHN L C/O CEPHEID 904 CARIBBEAN DRIVE SUNNYVALE CA 94089 1 1 0 0 Chairman of the Board and CEO Common Stock 2013-04-22 4 M 0 134799 9.18 A 164836 D Common Stock 2013-04-22 4 S 0 134799 37.5079 D 30037 D Non-qualified stock option (right to buy) 9.18 2013-04-22 4 M 0 134799 0 D 2016-04-27 Common Stock 134799 0 D The transaction reported on this Form 4 was effected pursuant to a 10b5-1 trading plan adopted by the reporting person on February 28, 2012. Represents the aggregate of sales effected on the same day at different prices. Represents the weighted average sales price per share. The shares sold at prices ranging from $37.14 to $38.105 per share. Full information regarding the number of shares sold at each price shall be provided upon request to the staff of the U.S. Securities and Exchange Commission, the Issuer, or a security holder of the Issuer. The stock option grant is 100% vested and exercisable. /s/ John L. Bishop by Joseph H. Smith, Attorney-in-Fact 2013-04-23