X0306 4 2017-04-26 0 0000891024 PATTERSON COMPANIES, INC. PDCO 0001552050 GUGINO ANN B 1031 MENDOTA HEIGHTS ROAD ST PAUL MN 55120 0 1 0 0 Executive Vice President & CFO Common Stock 2017-04-26 4 F 0 270 44.58 D 29745 D Common Stock 9050 I By ESOP Employee Stock Options 48.47 2019-07-01 2026-07-01 Common Stock 19841 19841 D Employee Stock Options 49.27 2018-07-01 2025-07-01 Common Stock 12809 12809 D Employee Stock Options 56.66 2025-07-01 Common Stock 100000 100000 D Employee Stock Options 39.64 2017-07-01 2024-07-01 Common Stock 7400 7400 D Represents shares of common stock withheld for payment of taxes incurred upon the lapse of restrictions on a restricted stock award granted in 2010. Includes 2,436 shares acquired pursuant to Reporting Person's participation in the Patterson Companies, Inc. Capital Accumulative Plan in the years 2015 and 2016 and remain subject to the terms of such Plan. Includes 6,696 shares of restricted stock received through awards in the years 2011 through 2015 to Reporting Person, which vest, contingent upon continued employment, as follows: 660 shares vest 4/29/2017 720 shares vest 4/30/2017, 740 shares vest 7/1/2017, 609 shares vest 7/1/2017, 660 shares vest 4/29/2018, 740 shares vest 7/1/2018, 609 shares vest on 7/1/2018, 740 shares on 7/1/2019, and 609 shares vest on 7/1/2019 and 7/1/2020. Includes 3,353 Restricted Stock Units ("RSUs") awarded on 7/1/2016 to Reporting Person pursuant to the Patterson Companies, Inc. 2015 Omnibus Incentive Plan. Each RSU represents a right, contingent upon continued employment, to receive one share of common stock. The RSUs vest cumulatively in 5 equal annual installments commencing on the one year anniversary of the date of grant and each anniversary thereafter. Represents shares of common stock indirectly held by the Reporting Person's Employee Stock Ownership Plan (ESOP) account through January 31, 2017. Stock option granted pursuant to the Patterson Companies, Inc. 2015 Omnibus Incentive Plan on 7/1/2016. Stock option granted pursuant to the Patterson Companies, Inc. 2012 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. Stock option granted pursuant to the Patterson Companies, Inc. 2012 Equity Incentive Plan on 7/1/2014. Les B. Korsh, by Power of Attorney 2017-04-28