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 plc [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 CHANCERY HOUSE, 190 WATERSIDE ROAD, HAMILTON INDUSTRIAL PARK 3. Date of Earliest Transaction (Month/Day/Year) 10/04/2017 (Street) LEISCESTER, X0 LE5 1QZ 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 Ordinary Shares, 10 pence par value 10/04/2017   S   10,000 (1) D $ 90.5 63,270 (2) D   Ordinary Shares, 10 pence par value               68,806 I See Footnote Below. (3)

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 CHANCERY HOUSE, 190 WATERSIDE ROAD HAMILTON INDUSTRIAL PARK LEISCESTER, X0 LE5 1QZ	X		President & CEO

Signatures

/s/ Ronald E. Snyder, Authorized Representative under Power of Attorney		10/06/2017
**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)	This sale of a total of 10,000 shares, held by the Reporting Person as Trustee of a revocable trust established for his benefit, was pursuant to a Rule 10b5-1 Stock Trading Plan entered into by the Reporting Person, as Trustee, effective on August 14, 2017.
(2)	These 63,270 ordinary shares are held by the Reporting Person as Trustee of a revocable trust established for his benefit. 41,543 of these Ordinary Shares are restricted. The restrictions on the restricted Ordinary Shares lapse as follows: 3,625 on May 28, 2018; 4,250 on May 30, 2018; 4,000 on May 30, 2018; 4,681 on June 1, 2018; 3,625 on May 28, 2019; 4,000 on May 30, 2019; 4,681 on June 3, 2019; 4,681 on June 1, 2020; 4,000 on June 1, 2020 and 4,000 on June 1, 2021.
(3)	These ordinary shares are held by the Reporting Person's Spouse as Trustee of a revocable trust established for her benefit.

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