X0304 4 2012-02-02 0 0001037760 CEPHEID CPHD 0001319606 Miller Andrew C/O CEPHEID 904 CARIBBEAN DRIVE SUNNYVALE CA 94089 0 1 0 0 EVP, CFO Common Stock 2012-02-02 4 M 0 48875 21.00 A 54098 D Common Stock 2012-02-02 4 M 0 3287 8.43 A 57385 D Common Stock 2012-02-02 4 S 0 52162 43.151 D 5223 D Common Stock 2012-02-03 4 M 0 4213 8.43 A 9436 D Common Stock 2012-02-03 4 M 0 5687 20.47 A 15123 D Common Stock 2012-02-03 4 S 0 9900 43.158 D 5223 D Non-Qualified Stock Option (right to buy) 21.00 2012-02-02 4 M 0 48875 0.00 D 2018-04-14 Common Stock 48875 12500 D Non-Qualified Stock Option (Right to Buy) 8.43 2012-02-02 4 M 0 3287 0.00 D 2016-04-28 Common Stock 3287 16713 D Non-Qualified Stock Option (Right to Buy) 8.43 2012-02-03 4 M 0 4213 0.00 D 2016-04-28 Common Stock 4213 12500 D Non-Qualified Stock Option (Right to Buy) 20.47 2012-02-03 4 M 0 5687 0.00 D 2017-04-29 Common Stock 5687 21938 D 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 $43.00 to $43.665 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. Represents the weighted average sales price per share. The shares sold at prices ranging from $43.15 to $43.27 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. 25% of the shares subject to the grant vested and became exercisable on April 14, 2009; thereafter, 2.0833% of the shares subject to the grant vested or will vest and become exercisable on each monthly anniversay of the First Vesting Date until 100% vested. 25% of the shares subject to the grant vested and became exercisable on April 28, 2010; then 2.0833% of the shares vest and become exercisable on each monthly anniversary of the First Vesting Date until 100% vested. 25% of the shares subject to the grant vested and became exercisable on April 29, 2011; thereafter, 2.0833% of the shares subject to the grant vested or will vest and become exercisable on each monthly anniversay of the First Vesting Date until 100% vested. /s/ Andrew D. Miller by Joseph H. Smith, Attorney-in-Fact 2012-02-06