Ownership Submission
FORM 3
 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF 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 *
  Carestio Daniel A
 2. Date of Event Requiring Statement (Month/Day/Year)
11/02/2015		 3. Issuer Name and Ticker or Trading Symbol
Steris plc [STE]
(Last)
(First)
(Middle)
C/O CHANCERY HOUSE, 190 WATERSIDE ROAD, HAMILTON INDUSTRIAL PARK		 4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Sr. V. P., Isomedix & Life Sci
 5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

LEICESTER, X0 LE5 1QZ		 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 Beneficially Owned
1.Title of Security
(Instr. 4)		 2. Amount of Securities Beneficially Owned
(Instr. 4)		 3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)		 4. Nature of Indirect Beneficial Ownership
(Instr. 5)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)		 2. Date Exercisable and Expiration Date
(Month/Day/Year)		 3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)		 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)		 6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Carestio Daniel A
C/O CHANCERY HOUSE, 190 WATERSIDE ROAD
HAMILTON INDUSTRIAL PARK
LEICESTER, X0 LE5 1QZ		       Sr. V. P., Isomedix & Life Sci  

Signatures

/s/ Dennis P. Patton, Authorized Representative under Power of Attorney 11/02/2015
**Signature of Reporting Person Date

Explanation of Responses:

No securities are beneficially owned

* If the form is filed by more than one reporting person, see Instruction 5(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).
 
Remarks:
Exhibit 24-Power of Attorney

Reflects the beneficial ownership of the reporting person at the time of his appointment as a reporting person of STERIS plc ("New STERIS") and does not include the securities acquired by the reporting person upon the consummation of the 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") on November 2, 2015. The Merger was consummated simultaneous with and conditioned on New STERIS' acquisition of Synergy Health plc by commencing a "recommended offer" under English law. The reporting person will file a Form 4 reflecting his acquisition of New STERIS securities in connection with the consummation of the Merger.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, See Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.