Sec Form 4 Filing - Burton Karen L @ Steris plc - 2017-02-14

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 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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1. Name and Address of Reporting Person Burton Karen L 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, Controller & CAO (Last) (First) (Middle) C/O CHANCERY HOUSE, 190 WATERSIDE RD., HAMILTON INDUSTRIAL PARK 3. Date of Earliest Transaction (MM/DD/YY) 02/14/2017 (Street) LEICESTER, X0LE5 1QZ 4. If Amendment, Date Original Filed (MM/DD/YY) 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 (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 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 par value 02/14/2017 M 475 ( 1 ) A $ 30.84 9,201 ( 2 ) D Ordinary Shares, 0.10 par value 02/14/2017 S 475 D $ 67.69 8,726 ( 2 ) D Ordinary Shares, 0.10 par value 02/14/2017 M 500 ( 1 ) A $ 31.87 9,226 ( 2 ) D Ordinary Shares, 0.10 par value 02/14/2017 S 500 D $ 67.69 8,726 ( 2 ) D Ordinary Shares, 0.10 par value 318 ( 3 ) I By 401(k)

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 (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 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 (MM/DD/YY) 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) $ 30.84 02/14/2017 M 475 ( 4 ) 05/21/2018 Ordinary Shares 475 $ 0 0 D Employee Stock Option (right to buy) $ 31.87 02/14/2017 M 500 ( 5 ) 05/20/2020 Ordinary Shares 500 $ 0 3,300 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Burton Karen L C/O CHANCERY HOUSE, 190 WATERSIDE RD. HAMILTON INDUSTRIAL PARK LEICESTER, X0LE5 1QZ VP, Controller & CAO Signatures /s/ Ronald E. Snyder, Authorized Representative under Power of Attorney 02/16/2017 Signature of Reporting Person Date

Explanation of Responses:

( 1 )This exercise and sale of a total of 975 ordinary shares is pursuant to a Rule 10b5-1 Stock Trading Plan entered into by the Reporting Person on December 5, 2016. ( 2 )5,956 of these shares are restricted and vest as follows: 1,300 on May 31, 2017; 1,000 on April 2, 2018; 972 on May 30, 2018; 764 on May 28, 2019; 700 on October 1, 2019 and 1,220 on June 1, 2020. ( 3 )Based on closing price of February 14, 2017. ( 4 )This option was granted as part of an award of 2,100 ordinary shares, 1,625 of which have previously been exercised. ( 5 )This option was granted on May 20, 2010 and is fully vested.

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