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 *
TOKICH MICHAEL J
  2. Issuer Name and Ticker or Trading Symbol
Steris plc [STE]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Sr. Vice Pres., CFO
(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)

LEICESTER, 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   M   12,000 (1) A $ 22.83 59,588 D  
Ordinary Shares, 10 pence par value 10/04/2017   S   12,000 (1) D $ 89.75 47,588 (2) D  
Ordinary Shares, 10 pence par value               3,347 I See Footnote Below. (3)

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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 (right to buy) $ 22.83 10/04/2017   M     12,000   (4) 05/21/2019 Ordinary Shares 12,000 $ 0 0 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
TOKICH MICHAEL J
C/O CHANCERY HOUSE, 190 WATERSIDE ROAD
HAMILTON INDUSTRIAL PARK
LEICESTER, X0 LE5 1QZ
      Sr. Vice Pres., CFO  

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 exercise and sale of a total of 12,000 ordinary shares is pursuant to a Rule 10b5-1 Stock Trading Plan entered into by the Reporting Person on August 31, 2017.
(2) 26,200 of these ordinary shares are restricted. The restrictions on these ordinary shares lapse as follows: 4,500 on May 30, 2018; 7,000 on May 28, 2019; 4,000 on October 1, 2019; 4,700 on June 1, 2020 and 6,000 on June 1, 2021.
(3) Units representing 3,347 ordinary share equivalents are held on behalf of the Reporting Person under the STERIS Corporation 401(k) Plan as of October 4, 2017.
(4) This option to purchase 12,000 STERIS plc ordinary shares, which is fully vested, was received in the Merger in exchange for an option to purchase 12,000 STERIS Corporation common shares for $22.83 per share, subject to the same terms and conditions as the original STERIS Corporation stock option.

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