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 *
Zangerle John Adam
  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)
VP, Gen Counsel, and Sec.
(Last)
(First)
(Middle)
C/O CHANCERY HOUSE, 190 WATERSIDE ROAD, HAMILTON INDUSTRIAL PARK
3. Date of Earliest Transaction (Month/Day/Year)
11/02/2015
(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, ?0.10 Nominal Value 11/02/2015   A   18,608 (1) A (2) 18,608 D  

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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) $ 27.68 11/02/2015   A   2,200     (3) 07/27/2017 Ordinary Shares, ?0.10 Nominal Value 2,200 (3) 2,200 D  
Employee Stock Option (right to buy) $ 30.84 11/02/2015   A   3,100     (4) 05/21/2018 Ordinary Shares, ?0.10 Nominal Value 3,100 (4) 3,100 D  
Employee Stock Option (right to buy) $ 22.83 11/02/2015   A   3,150     (5) 05/21/2019 Ordinary Shares, ?0.10 Nominal Value 3,150 (5) 3,150 D  
Employee Stock Option (right to buy) $ 31.87 11/02/2015   A   3,000     (6) 05/20/2020 Ordinary Shares, ?0.10 Nominal Value 3,000 (6) 3,000 D  
Employee Stock Option (right to buy) $ 36.09 11/02/2015   A   3,500     (7) 05/31/2021 Ordinary Shares, ?0.10 Nominal Value 3,500 (7) 3,500 D  
Employee Stock Option (right to buy) $ 29.94 11/02/2015   A   3,800     (8) 05/30/2022 Ordinary Shares, ?0.10 Nominal Value 3,800 (8) 3,800 D  
Employee Stock Option (right to buy) $ 45.34 11/02/2015   A   6,000     (9) 05/31/2023 Ordinary Shares, ?0.10 Nominal Value 6,000 (9) 6,000 D  
Employee Stock Option (right to buy) $ 53.52 11/02/2015   A   12,252     (10) 05/30/2024 Ordinary Shares, ?0.10 Nominal Value 12,252 (10) 12,252 D  
Employee Stock Option (right to buy) $ 67.98 11/02/2015   A   8,000     (11) 08/10/2025 Ordinary Shares, ?0.10 Nominal Value 8,000 (11) 8,000 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Zangerle John Adam
C/O CHANCERY HOUSE, 190 WATERSIDE ROAD
HAMILTON INDUSTRIAL PARK
LEICESTER, X0 LE5 1QZ
      VP, Gen Counsel, and Sec.  

Signatures

 /s/ Dennis P. Patton, Authorized Representative under Power of Attorney   11/02/2015
**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) 13,652 of these ordinary shares are restricted. The restrictions on these ordinary shares lapse as follows: 1,400 on May 31, 2016; 1,000 on August 1, 2016; 1,000 on November 28, 2016; 5,000 on May 31, 2017; 2,252 on May 30, 2018 and 3,000 on May 28, 2019.
(2) Represents ordinary shares of STERIS plc ("New STERIS") acquired pursuant to merger of a wholly-owned subsidiary of New STERIS with and into STERIS Corporation ("STERIS"), with STERIS surviving the merger as a wholly-owned subsidiary of New STERIS (the "Merger"), in exchange for common shares of STERIS, which was consummated simultaneous with and conditioned on New STERIS' acquisition of Synergy Health plc by commencing a "recommended offer" under English law. At the effective time of the Merger, each STERIS common share was cancelled and converted into the right to receive one New STERIS ordinary share.
(3) This option to purchase 2,200 New STERIS ordinary shares, which is fully vested, was received in the Merger in exchange for an option to purchase 2,200 STERIS common shares for $27.68 per share, subject to the same terms and conditions as the original STERIS stock option.
(4) This option to purchase 3,100 New STERIS ordinary shares, which is fully vested, was received in the Merger in exchange for an option to purchase 3,100 STERIS common shares for $30.84 per share, subject to the same terms and conditions as the original STERIS stock option.
(5) This option to purchase 3,150 New STERIS ordinary shares, which is fully vested, was received in the Merger in exchange for an option to purchase 3,150 STERIS common shares for $22.83 per share, subject to the same terms and conditions as the original STERIS stock option.
(6) This option to purchase 3,000 New STERIS ordinary shares, which is fully vested, was received in the Merger in exchange for an option to purchase 3,000 STERIS common shares for $31.87 per share, subject to the same terms and conditions as the original STERIS stock option.
(7) This option to purchase 3,500 New STERIS ordinary shares, which is fully vested, was received in the Merger in exchange for an option to purchase 3,500 STERIS common shares for $36.09 per share, subject to the same terms and conditions as the original STERIS stock option.
(8) This option became or will become exercisable as follows: 950 on May 30, 2013; 950 on May 30, 2014; 950 on May 30, 2015 and 950 on May 30, 2016. This option was received in the Merger in exchange for an option to purchase 3,800 STERIS common shares for $29.94 per share, subject to the same terms and conditions as the original STERIS stock option.
(9) This option became or will become exercisable as follows: 1,500 on May 31, 2014; 1,500 on May 31, 2015; 1,500 on May 31, 2016 and 1,500 on May 31, 2017. This option was received in the Merger in exchange for an option to purchase 6,000 STERIS common shares for $45.34 per share, subject to the same terms and conditions as the original STERIS stock option.
(10) This option became or will become exercisable as follows: 3,063 on May 30, 2015; 3,063 on May 30, 2016; 3,063 on May 30, 2017 and 3,063 on May 30, 2018. This option was received in the Merger in exchange for an option to purchase 12,252 STERIS common shares for $53.52 per share, subject to the same terms and conditions as the original STERIS stock option.
(11) This option will become exercisable as follows: 2,000 on May 28, 2016; 2,000 on May 28, 2017; 2,000 on May 28, 2018 and 2,000 on May 28, 2019. This option was received in the Merger in exchange for an option to purchase 8,000 STERIS common shares for $67.98 per share, subject to the same terms and conditions as the original STERIS stock option.

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