X0306 4 2014-02-13 0 0000353569 QUIDEL CORP /DE/ QDEL 0001077650 Dammeyer Rodney F 10165 MCKELLAR COURT SAN DIEGO CA 92121 1 0 0 0 Common Stock 2014-02-13 4 S 0 26000 27.70 D 34692 I By Family Trust The shares that were the subject of this transaction were held indirectly by the Dammeyer Family Trust. This transaction was executed in multiple trades at the price of $27.70 per share, which is also the weighted average share price for this transaction. The reporting person undertakes to provide upon request to the staff of the U.S. Securities and Exchange Commission, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transfer was effected. This Reporting Person disclaims all beneficial ownership of the shares owned directly by the Dammeyer Family Trust, except to the extent of his pecuniary interest, if any, and the inclusion of these shares in this Report should not be deemed an admission of beneficial ownership of all of the reported shares for purposes of Section 16 or for any other purpose. Robert J. Bujarski, attorney-in-fact for Rodney F. Dammeyer 2014-02-14