X0306 4 2020-05-18 0 0000353569 QUIDEL CORP /DE/ QDEL 0001720077 BORKAR RATAN S 9975 SUMMERS RIDGE ROAD SAN DIEGO CA 92121 0 1 0 0 SVP, Intl Comm Operations Common Stock 2020-05-18 4 S 0 1665 196.7752 D 10839 D Common Stock 2020-05-18 4 M 0 1898 21.08 A 12737 D Common Stock 2020-05-18 4 M 0 4606 46.41 A 17343 D Common Stock 2020-05-18 4 M 0 5376 15.40 A 22719 D Common Stock 2020-05-18 4 M 0 4452 41.36 A 27171 D Common Stock 2020-05-18 4 S 0 16332 192.5277 D 10839 D Common Stock 2020-05-18 4 S 0 10315 192.6437 D 524 D Non-Qualified Stock Option 21.08 2020-05-18 4 M 0 1898 0.00 D 2027-02-15 Common Stock 1898 1898 D Non-Qualified Stock Option 46.41 2020-05-18 4 M 0 4606 0.00 D 2028-01-16 Common Stock 4606 4606 D Non-Qualified Stock Option 15.40 2020-05-18 4 M 0 5376 0.00 D 2026-02-10 Common Stock 5376 0 D Non-Qualified Stock Option 41.36 2020-05-18 4 M 0 4452 0.00 D 2027-10-16 Common Stock 4452 4450 D The weighted average sale price for these transactions was $196.7752 per share, with a range of $191.95 to $201.10. 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 sold at each separate price. The weighted average sale price for these transactions was $192.5277 per share, with a range of $185.17 to $201.10. 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 sold at each separate price. The weighted average sale price for these transactions was $192.6437 per share, with a range of $185.17 to $201.10. 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 sold at each separate price. 3,797 shares vested on the second anniversary of the grant date, February 15, 2019. 1,898 shares vested on the third anniversary date of the grant date, February 15, 2020. 1,898 shares will vest on the fourth anniversary date of the grant date, February 15, 2021. 4606 shares vested on the second anniversary of the grant date, January 16, 2020. 2,303 shares will vest on the third anniversary date of the grant date, January 16, 2021. 2,303 shares will vest on the fourth anniversary date of the grant date, January 16, 2022. 10,754 shares vested on the second anniversary date of the grant date, February 10, 2018. 5,376 shares vested on the third anniversary date of the grant date, February 10, 2019. 5,376 shares vested on the fourth anniversary date of the grant date, February 10, 2020. 4,452 shares vested on the second anniversary date of the grant date, October 16, 2019. 2,225 shares will vest on the third anniversary date of the grant date, October 16, 2020. 2,225 shares will vest on the fourth anniversary date of the grant date, October 16, 2021. All transactions reported herein were effected pursuant to a pre-established 10b5-1 trading plan. Robert J. Bujarski, attorney-in-fact for Ratan S. Borkar 2020-05-20