X0306 4 2019-02-04 0 0000353569 QUIDEL CORP /DE/ QDEL 0001655234 Russell Edward Keith 12544 HIGH BLUFF DRIVE SUITE 200 SAN DIEGO CA 92130 0 1 0 0 S.V.P., N.A. Commercial Ops Non-Qualified Stock Option 59.12 2019-02-04 4 A 0 7246 0.00 A 2029-02-04 Common Stock 7246 7246 D Restricted Stock Units 2019-02-04 4 A 0 3623 0.00 A Common Stock 3623 3623 D 3,623 shares will vest on the second anniversary date of the grant date, February 4, 2021. 1,812 shares will vest on the third anniversary date of the grant date, February 4, 2022. 1,811 shares will vest on the fourth anniversary date of the grant date, February 4, 2023. Each restricted stock unit represents the right to receive one share of Quidel Corporation common stock. 3,623 shares will vest on the fourth anniversary date of the grant date, February 4, 2023. Robert J. Bujarski, attorney-in-fact for Edward K. Russell 2019-02-06