X0306 4 2014-11-14 0 0000353569 QUIDEL CORP /DE/ QDEL 0001187716 POLAN MARY LAKE PH D 12544 HIGH BLUFF DRIVE, SUITE 200 SAN DIEGO CA 92130 1 0 0 0 Common Stock 2014-11-14 4 S 0 2000 28.2413 D 18501 D The weighted average purchase price for these transactions was $28.24126 per share, with a range of $28.17 to $28.34 per share. Upon request, the Reporting Person hereby undertakes 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 purchased at each separate price. Robert J. Bujarski, attorney-in-fact for Mary Lake Polan 2014-11-18