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 *
Rosebrough Walter M Jr
   2. Issuer Name and Ticker or Trading Symbol
STERIS CORP [STE] 		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)
C/O 5960 HEISLEY ROAD		 3. Date of Earliest Transaction (Month/Day/Year)
09/30/2015
(Street)

MENTOR, OH 44060		 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 Shares, No Par Value 09/30/2015   S   5,000 (1) D $ 64.9153 (2) 116,376 (3) D  
Common Shares, No Par Value 09/30/2015   S   5,000 (4) D $ 64.931 (5) 20,000 I See Footnote Below. (6)
Common Shares, No Par Value               98,040 I See Footnote Below. (7)
Common Shares, No Par Value               6,960 I See Footnote Below. (8)

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

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Rosebrough Walter M Jr
C/O 5960 HEISLEY ROAD
MENTOR, OH 44060		   X     President & CEO  

Signatures

 /s/ Dennis P. Patton, Authorized Representative under Power of Attorney   09/30/2015
**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) This transaction involved the open market sale on September 30, 2015 of a total of 5,000 shares, held by the Reporting Person as Trustee, from his revocable trust established for his benefit, pursuant to a Rule 10b5-1 Stock Trading Plan entered into by the Reporting Person, as Trustee, on December 5, 2014.
(2) This represents the average sales price of the 5,000 shares sold in the open market. The actual 37 sales prices ranged from $64.3300 per share to $65.3200 per share. Issuer, upon request by the SEC staff, will provide full information regarding the number of shares sold at each of these 37 sales prices.
(3) These 116,376 Common Shares are held by the Reporting Person as Trustee of a revocable trust established for his benefit. 44,750 of these Common Shares are restricted. The restrictions on the restricted Common Shares lapse as follows: 5,000 on May 31, 2016; 6,250 on May 31, 2016; 6,250 on May 31, 2017; 4,250 on May 30, 2016; 4,250 on May 30, 2017, 4,250 on May 30, 2018, 3,625 on May 30, 2016, 3,625 on May 29, 2017, 3,625 on May 28, 2018, and 3,625 on May 28, 2019.
(4) This transaction involved the open market sale on September 30, 2015 of a total of 5,000 shares, held by the Reporting Person as Trustee, from an irrevocable trust established for the benefit of the children of the Reporting Person and the Reporting Person's Spouse, pursuant to a Rule 10b5-1 Stock Trading Plan entered into by the Reporting Person, as Trustee, on December 4, 2014.
(5) This represents the average sales price of the 5,000 shares sold in the open market. The actual 34 sales prices ranged from $64.2600 per share to $65.3200 per share. Issuer, upon request by the SEC staff, will provide full information regarding the number of shares sold at each of these 34 sales prices.
(6) These shares are held by the Reporting Person as Trustee of an irrevocable trust established for the benefit of the children of the Reporting Person and the Reporting Person's Spouse.
(7) These shares are held by the Reporting Person's Spouse as Trustee of a revocable trust established for her benefit.
(8) These shares are held by the Reporting Person as Trustee of an irrevocable trust established for the benefit of the grandchildren of the Reporting Person and the Reporting Person's Spouse.

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