X0306 4 2019-07-01 0 0000891024 PATTERSON COMPANIES, INC. PDCO 0001652545 KORSH LES B 1031 MENDOTA HEIGHTS ROAD ST. PAUL MN 55120 0 1 0 0 VP, General Counsel Common Stock 2019-07-01 4 F 0 807 22.25 D 80901 D Common Stock 2019-07-01 4 A 0 5056 22.25 A 85957 D Common Stock 1079 I By ESOP Employee Stock Options 22.25 2019-07-01 4 A 0 33784 22.25 A 2029-07-01 Common Stock 33784 33784 D Employee Stock Options 22.48 2021-07-01 2028-07-01 Common Stock 14179 14179 D Employee Stock Options 47.51 2020-07-01 2027-07-01 Common Stock 11845 11845 D Employee Stock Options 48.47 2019-07-01 2026-07-01 Common Stock 10379 10379 D Employee Stock Options 56.66 2025-07-01 Common Stock 25000 25000 D Represents shares of common stock withheld for payment of taxes incurred upon the lapse of restrictions on restricted stock units ("RSUs")issued pursuant to the Patterson Companies, Inc. Amended and Restated 2015 Omnibus Incentive Plan ("Plan"). Represents shares of common stock withheld for payment of taxes incurred upon the lapse of restrictions on restricted stock awards granted in 2014 and 2015 pursuant to the Patterson Companies, Inc. Amended and Restated Equity Incentive Plan. Includes 508 shares of restricted stock awarded in the year 2015 to Reporting Person pursuant to the Patterson Companies, Inc. Amended and Restated Equity Incentive Plan, which vest, contingent upon continued employment on 7/1/2020. Includes 5,825 RSUs awarded on 7/1/2016, 7/1/2017 and 7/1/2018 to Reporting Person pursuant to the Plan. The RSUs vest contingent upon continued employment as follows: 1,743 units in aggregate vest on 7/1/2020, 1,743 units in aggregate vest on 7/1/2021, 1,393 units in aggregate vest on 7/1/2022 and 946 units vest on 7/1/2023. Includes 50,630 RSUs awarded to Reporting Person pursuant to a Restrictive Covenants, Severance and Change in Control Agreement between Patterson Companies, Inc. and the Reporting Person. Each RSU represents a right to receive one share of common stock upon vesting. The RSUs are issued under the Plan and will vest, contingent upon continued employment as follows: 16,877 units vest on 6/11/2020 and 33,753 units vest on 6/11/2021. Includes 5,647 shares acquired pursuant to Reporting Person's participation in the Patterson Companies, Inc. Capital Accumulation Plan in the years 2017 and 2018 and remain subject to the terms of such plan. Represents RSUs awarded on 7/1/2019 to Reporting Person pursuant to the Plan. The RSUs awarded vest, assuming continued employment, 100% on 7/1/2022. Represents shares of common stock indirectly held by the Reporting Person's Employee Stock Ownership Plan (ESOP) account through June 28, 2019. 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 pursuant to the Plan on 7/1/2018. Stock options granted pursuant to the Plan on 7/1/2017. Stock options granted pursuant to the Plan on 7/1/2016. Stock options granted pursuant to the Patterson Companies, Inc. Amended and Restated Equity Incentive Plan on 7/1/2015. Options are exercisable as follows: 25% on 7/1/2018, 25% on 7/1/2019 and 50% on 7/1/2020. Les B. Korsh 2019-07-02