X0306 4 2020-06-29 0 0000891024 PATTERSON COMPANIES, INC. PDCO 0001341608 Zurbay Donald 1031 MENDOTA HEIGHTS ST. PAUL MN 55120 0 1 0 0 Chief Financial Officer Common Stock 2020-06-29 4 F 0 3734 22.50 D 64117 D Common Stock 671 I By ESOP Employee Stock Options 22.25 2029-07-01 Common Stock 78829 78829 D Employee Stock Options 22.67 2028-06-29 Common Stock 99250 99250 D Employee Stock Options 22.48 2021-07-01 2028-07-01 Common Stock 33363 33363 D Represents shares of common stock withheld for payment of taxes incurred upon the lapse of restrictions on restricted stock units ("RSUs") issued 6/29/2018 outside the Patterson Companies, Inc. Amended and Restated 2015 Omnibus Incentive Plan ("Plan"). Includes 20,695 RSUs awarded on 7/1/2018 and 7/1/2019 to Reporting Person pursuant to the Plan. The RSUs vest contingent upon continued employment as follows: 2,224 units vest 7/1/2020, 2,224 units vest 7/1/2021, 14,022 units vest 7/1/2022 and 2,225 units vest 7/1/2023. Includes 19,460 RSU equivalents attributable to the June 11, 2019 determination by the Compensation Committee that the performance criteria for the period of April 29, 2018 through April 27, 2019 applicable to non-derivative performance units issued on August 7, 2018 had been satisfied. Subject to continued employment of the Reporting Person through April 24, 2021, the RSU equivalents will automatically convert into shares of common stock. Represents shares of common stock indirectly help by the Reporting Person's Employee Stock Ownership Plan ("ESOP") account through April 25, 2020. Stock options granted pursuant to the Plan on 7/1/2019. Options are exercisable as follows: 33% on 7/1/2020, 33% on 7/1/2021 and 34% on 7/1/2022. Stock options granted as an inducement award granted outside the Plan on 6/29/2018. The stock options granted would vest pro-rata over the course of 3 years, with one-third of the shares vesting on 6/29/2019, one-third vesting on 6/29/2020, and the remaining one-third vesting 6/29/2021, in all cases subject to continued employments. Stock options granted pursuant to the Plan on 7/1/2018. Les B. Korsh, by Power of Attorney 2020-06-30