Sec Form 4 Filing - Donnelly Edward L @ PATTERSON COMPANIES, INC. - 2005-07-06

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 Donnelly Edward L 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) President, Subsidiary (Last) (First) (Middle) ABILITYONE CORPORATION, 270 REMINGTON BLVD., SUITE C 3. Date of Earliest Transaction (MM/DD/YY) 07/06/2005 (Street) BOLINGBROOK, IL60440 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 07/06/2005 A( 1 ) 849 A $ 0 4,219 D

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 ( 2 ) ( 3 ) ( 4 ) Common Stock 47,662 47,662 D Convertible Debenture $ 25.49 07/14/2006 09/12/2006 Common Stock 58,846 58,846 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Donnelly Edward L ABILITYONE CORPORATION 270 REMINGTON BLVD., SUITE C BOLINGBROOK, IL60440 President, Subsidiary Signatures Matthew L. Levitt, by Power of Attorney 07/07/2005 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Patterson Companies, Inc. Employee Stock Ownership Plan. ( 2 )Options granted as follows: 43,058 on 9/12/2003 at $27.71 and 4,604 on 4/26/2004 at $38.50. ( 3 )Options are exercisable as follows: 6,151 on September 12 of each year 2006 - 2012; and 4,604 on 4/26/2013. ( 4 )All options expire 10 years after grant 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).

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