X0306 4 2019-07-01 0 0000891024 PATTERSON COMPANIES, INC. PDCO 0001766974 SHIRLEY ERIC R 1031 MENDOTA HEIGHTS ROAD ST. PAUL MN 55120 0 1 0 0 President-Patterson Dental Common Stock 2019-07-01 4 A 0 5056 22.25 A 31663 D Employee Stock Options 22.25 2019-07-01 4 A 0 33784 22.25 A 2029-07-01 Common Stock 33784 33784 D Represents restricted stock units ("RSUs") awarded on 7/1/2019 to Reporting Person pursuant to the Amended and Restated 2015 Omnibus Incentive Plan ("Plan"). The RSUs awarded vest, assuming continued employment, 100% on 7/1/2022. Includes 26,607 RSUs granted to Reporting Person on 2/4/2019 as an inducement award granted pursuant to the Plan. The RSUs will vest, assuming continued employment, 100% on 2/4/2022. 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. Les B. Korsh, by Power of Attorney 2019-07-02