Sec Form 4 Filing - Zurbay Donald @ PATTERSON COMPANIES, INC. - 2023-07-18

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Zurbay Donald 2. Issuer Name and Ticker or Trading Symbol PATTERSON COMPANIES, INC. [ PDCO] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) President & CEO (Last) (First) (Middle) 1031 MENDOTA HEIGHTS 3. Date of Earliest Transaction (MM/DD/YY) 07/18/2023 (Street) ST. PAUL, MN55120 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 07/18/2023 S( 1 ) 5,620 D $ 32.4828 149,539 ( 2 ) D Common Stock 1,146 ( 3 ) I By ESOP

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares Employee Stock Options ( 4 ) $ 33.26 ( 5 ) 07/01/2033 Common Stock 93,633 93,633 D Employee Stock Options ( 6 ) $ 28.99 ( 7 ) 12/05/2032 Common Stock 134,033 134,033 D Employee Stock Options ( 8 ) $ 30.59 ( 9 ) 07/01/2032 Common Stock 35,895 35,895 D Employee Stock Options ( 10 ) $ 30.77 ( 11 ) 07/01/2031 Common Stock 37,831 37,831 D Employee Stock Options ( 12 ) $ 23.57 ( 5 ) 07/14/2030 Common Stock 57,819 57,819 D Employee Stock Options ( 13 ) $ 22.25 ( 14 ) 07/01/2029 Common Stock 78,829 78,829 D Employee Stock Options ( 15 ) $ 22.48 07/01/2021 07/01/2028 Common Stock 33,363 33,363 D Employee Stock Options ( 16 ) $ 22.67 ( 16 ) 06/29/2028 Common Stock 99,250 99,250 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Zurbay Donald 1031 MENDOTA HEIGHTS ST. PAUL, MN55120 X President & CEO Signatures Les B. Korsh, by Power of Attorney 07/19/2023 Signature of Reporting Person Date

Explanation of Responses:

( 1 )The transaction reported on this Form 4 was effected pursuant to a Rule 10b5-1 Plan adopted by the Reporting Person on April 5, 2023. ( 2 )Includes an aggregate of 79,934 restricted stock units ("RSUs") awarded in the years 2020 through 2023 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: 13,210 units vest 12/1/2023, 16,735 units vest 7/1/2024, 13,210 units vest 12/1/2024, 13,488 units vest 7/1/2025, 13,249 units vest on 12/1/2025 and 10,042 units vest 7/1/2026. ( 3 )Represents shares of common stock indirectly held by the Reporting Person's Employee Stock Ownership Plan ("ESOP") account through May 1, 2023. ( 4 )Stock options granted pursuant to the Plan on 7/1/2023. ( 5 )Options are exercisable as follows: 33.3% on 7/1/2024, 33.3% on 7/1/2025 and 33.4% on 7/1/2026. ( 6 )Stock options granted pursuant to the Plan on 12/5/2022. ( 7 )Options are excercisable as follows: 33.3% on 12/5/2023, 33.3% on 12/5/2024 and 33.4% on 12/5/2025. ( 8 )Stock options granted pursuant to the Plan on 7/1/2022. ( 9 )Options are exercisable as follows: 33.3% on 7/1/2023, 33.3% on 7/1/2024 and 33.4% on 7/1/2025. ( 10 )Stock options granted pursuant to the Plan on 7/1/2021. ( 11 )Options are exercisable as follows: 33.3% on 7/1/2022, 33.3% on 7/1/2023 and 33.4% on 7/1/2024. ( 12 )Stock options granted pursuant to the Plan on 7/14/2020. ( 13 )Stock options granted pursuant to the Plan on 7/1/2019. ( 14 )Options are exercisable as follows: 33.3% on 7/1/2020, 33.3% on 7/1/2021 and 33.4% on 7/1/2022. ( 15 )Stock options granted pursuant to the Plan on 7/1/2018. ( 16 )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.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

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