X0306 4 2014-02-24 0 0000353569 QUIDEL CORP /DE/ QDEL 0001222788 TAMERIUS JOHN 10165 MCKELLAR COURT SAN DIEGO CA 92121 0 1 0 0 SVP - Clinical/Reg Affairs Common Stock 2014-02-25 4 S 0 24464 27.566 D 32019 D Common Stock 2014-02-26 4 M 0 8891 12.63 A 40910 D Common Stock 2014-02-26 4 M 0 13891 15.28 A 54801 D Common Stock 2014-02-26 4 S 0 22782 27.8187 D 32019 D Non-Qualified Stock Options 27.57 2014-02-24 4 A 0 21068 0.00 A 2024-02-24 Common Stock 21068 21068 D Restricted Stock Units 2014-02-24 4 A 0 961 0.00 A Common Stock 961 961 D Non-Qualified Stock Options 12.63 2014-02-26 4 M 0 8891 0.00 D 2013-03-02 2021-03-02 Common Stock 8891 16109 D Non-Qualified Stock Options 15.28 2014-02-26 4 M 0 13891 0.00 D 2014-01-18 2020-01-18 Common Stock 13891 4630 D The weighted average sale price for these transactions was $27.566 per share, with a range of $27.69 to $27.50 per share. Upon request, the Reporting Person hereby understakes to provide to staff of the U.S. Securities and Exchange Commission, the Issuer, or a security holder, the full information regarding the number of shares sold at each separate price. The weighted average sale price for these transactions was $27.8187 per share, with a range of $27.72 to $27.97 per share. Upon request, the Reporting Person hereby understakes to provide to staff of the U.S. Securities and Exchange Commission, the Issuer, or a security holder, the full information regarding the number of shares sold at each separate price. 10,534 shares will vest on the second anniversary date of the grant date, February 24, 2016. 5,267 shares will vest on the third anniversary date of the grant date, February 24, 2017. 5,267 shares will vest on the fourth anniversary date of the grant date, February 24, 2018. Each restricted stock unit represents the right to receive one share of Quidel Corporation common stock. 480 shares will vest on the second anniversary date of the grant date, February 24, 2016. 240 shares will vest on the third anniversary date of the grant date, February 24, 2017. 241 shares will vest on the fourth anniversary date of the grant date, February 24, 2018. Robert J. Bujarski, attorney-in-fact for John Tamerius 2014-02-26