Ownership Submission
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 OF SECURITIES

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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(Print or Type Responses)
1. Name and Address of Reporting Person *
GUGINO ANN B
   2. Issuer Name and Ticker or Trading Symbol
PATTERSON COMPANIES, INC. [PDCO] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Executive Vice President & CFO
(Last)
(First)
(Middle)
1031 MENDOTA HEIGHTS ROAD		 3. Date of Earliest Transaction (Month/Day/Year)
10/11/2017
(Street)

ST PAUL, MN 55120		 4. If Amendment, Date Original Filed(Month/Day/Year)
 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 (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 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 10/11/2017   S(1)   750 D $ 36.73 29,895 (2) (3) (4) D  
Common Stock               9,139 (5) I By ESOP

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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 (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 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
(Month/Day/Year)		 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 Option (6) $ 47.51             07/01/2020 07/01/2027 Common Stock 21,042   21,042 D  
Employee Stock Option (7) $ 48.47             07/01/2019 07/01/2026 Common Stock 19,841   19,841 D  
Employee Stock Option (8) $ 49.27             07/01/2018 07/01/2025 Common Stock 12,809   12,809 D  
Employee Stock Option (8) $ 56.66               (9) 07/01/2025 Common Stock 100,000   100,000 D  
Employee Stock Option (10) $ 39.64             07/01/2017 07/01/2024 Common Stock 7,400   7,400 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
GUGINO ANN B
1031 MENDOTA HEIGHTS ROAD
ST PAUL, MN 55120		       Executive Vice President & CFO  

Signatures

 Les B. Korsh, by Power of Attorney   10/11/2017
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) The transaction reported on this Form 4 was effected pursuant to a Rule 10b5-1 Plan adopted by the Reporting Person on 3/2/2017.
(2) 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.
(3) Includes 3,967 shares of restricted stock received through awards in the years 2013 through 2015 to Reporting Person, which vest, contingent upon continued employment, as follows: 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.
(4) Includes 6,655 Restricted Stock Units ("RSUs") awarded on 7/1/2016 and 7/1/2017 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 2016 award vests as follows: 671 shares vest on 7/1/2018, 670 shares vest on 7/1/2019 and 671 shares vest on 7/1/2020 and 7/1/2021. The 2017 award vests in 5 equal annual installments commencing on the one year anniversary of the date of grant and each anniversary thereafter.
(5) Represents shares of common stock indirectly held by the Reporting Person's Employee Stock Ownership Plan (ESOP) account through July 10, 2017.
(6) Stock option granted pursuant to the Patterson Companies, Inc. 2015 Omnibus Incentive Plan on 7/1/2017.
(7) Stock option granted pursuant to the Patterson Companies, Inc. 2015 Omnibus Incentive Plan on 7/1/2016.
(8) Stock option granted pursuant to the Patterson Companies, Inc. 2012 Equity Incentive Plan on 7/1/2015.
(9) Options are exercisable as follows: 25% on 7/1/2018, 25% on 7/1/2019 and 50% on 7/1/2020.
(10) Stock option granted pursuant to the Patterson Companies, Inc. 2012 Equity Incentive Plan on 7/1/2014.

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