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
                                                                                  
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Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
                      

1. Name and Address of Reporting Person *

WALCHIRK MARK S 		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 ROAD 		3. Date of Earliest Transaction (MM/DD/YYYY)

7/1/2018
(Street)

ST. PAUL, MN 55120
(City)        (State)        (Zip)
4. If Amendment, Date Original Filed (MM/DD/YYYY)

 
6. Individual or Joint/Group Filing (Check Applicable Line)

_ X _ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3) 		2. Trans. Date 2A. Deemed Execution Date, if any 3. Trans. 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   7/1/2018     A (1)    35632   A $22.48   101232   (2) (3) D    

Table II - Derivative Securities Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
(Instr. 3) 		2. Conversion or Exercise Price of Derivative Security 3. Trans. Date 3A. Deemed Execution Date, if any 4. Trans. 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 7. Title and Amount of Securities Underlying Derivative Security
(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   $22.48   7/1/2018     A   (4)    99956       7/1/2021   7/1/2028   Common Stock   99956   $22.48   99956   D    
Employee Stock Options   (5) $35.41                    12/1/2020   12/1/2027   Common Stock   52764     52764   D    

Explanation of Responses:
(1)  Represents Restricted Stock Units ("RSUs") awarded on 7/1/2018 to Reporting Person pursuant to the Patterson Companies, Inc. 2015 Omnibus Incentive Plan ("Plan"). The award vests in 5 equal annual installments commencing on the one year anniversary of the date of grant and each anniversary thereafter.
(2)  Includes an inducement award granted outside the Plan to Reporting Person on 12/1/2017. The 56,481 RSUs awarded vest, assuming continued employment, 50% on the first anniversary of the date of grant and the remaining 50% on the second anniversary of the date of grant.
(3)  Includes 9,119 RSUs awarded on 12/1/2017 to Reporting Person pursuant to the Plan. The RSUs vest contingent upon continued employment in 5 equal annual installments commencing on the one year anniversary of the date of grant and each anniversary thereafter.
(4)  Stock options granted pursuant to the Plan on 7/1/2018.
(5)  Stock options granted pursuant to the Plan on 12/1/2017.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director 10% Owner Officer Other
WALCHIRK MARK S
1031 MENDOTA HEIGHTS ROAD
ST. PAUL, MN 55120 		X
President & CEO

Signatures
Les B. Korsh, by Power of Attorney 7/3/2018
** Signature of Reporting Person Date


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).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.
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