X0306 4 2021-09-30 0 0000891024 PATTERSON COMPANIES, INC. PDCO 0001712443 POHLMAN KEVIN M 822 7TH STREET, SUITE 740 GREELEY CO 80631 0 1 0 0 President - Animal Health Common Stock 2021-09-30 4 A 0 73 29.769 A 98794 D Common Stock 1660 I By ESOP Employee Stock Options 30.77 2031-07-01 Common Stock 18916 18916 D Employee Stock Options 23.57 2030-07-14 Common Stock 24780 24780 D Employee Stock Options 22.25 2029-07-01 Common Stock 33784 33784 D Employee Stock Options 22.48 2021-07-01 2028-07-01 Common Stock 13345 13345 D Employee Stock Options 39.23 2020-08-07 2027-08-07 Common Stock 5539 5539 D Employee Stock Options 47.51 2020-07-01 2027-07-01 Common Stock 13935 13935 D Shares acquired by Reporting Person pursuant to the Patterson Companies, Inc. Employee Stock Purchase Plan. Includes an aggregate of 17,202 restricted stock units ("RSUs") awarded on 7/1/2017, 8/7/2017, 7/1/2018, 7/1/2019, 7/14/2020 and 7/1/2021 to Reporting Person pursuant to the Patterson Companies, Inc. Amended and Restated 2015 Omnibus Incentive Plan ("Plan"). The RSUs vest contingent upon continued employment as follows: 8,098 units vest on 7/1/2022, 191 units vest on 8/7/2022, 2,515 units vest on 7/1/2023, 4,773 units vest on 7/14/2023 and 1,625 units vest on 7/1/2024. Includes 14,410 RSU equivalents attributable to the July 1, 2020 determination by the Compensation Committee that the performance criteria for the period of April 27, 2019 through April 25, 2020 applicable to non-derivative performance units issued on July 1, 2019 had been satisfied. Subject to continued employment of the Reporting Person through July 1, 2022, the RSU equivalents will automatically convert into shares of common stock. Represents shares of common stock indirectly held by the Reporting Person's Employee Stock Ownership Plan (ESOP) account through May 21, 2021. Stock options granted pursuant to the Plan on 7/1/2021. Options are exercisable as follows: 33.3% on 7/1/2022, 33.3% on 7/1/2023 and 33.4% on 7/1/2024. Stock options granted pursuant to the Plan on 7/14/2020. Options are exercisable as follows: 33.3% on 7/14/2021, 33.3% on 7/14/2022 and 33.4% on 7/14/2023. Stock options granted pursuant to the Plan on 7/1/2019. Options are exercisable as follows: 33.3% on 7/1/2020, 33.3% on 7/1/2021 and 33.4% on 7/1/2022. Stock options granted pursuant to the Plan on 7/1/2018. Stock option granted pursuant to the Plan on 8/7/2017. Stock option granted pursuant to the Plan on 7/1/2017. Les B. Korsh, by Power of Attorney 2021-10-04