Sec Form 3 Filing - Kohler Kenneth E @ STERIS plc - 2024-02-22

FORM 3 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 Kohler Kenneth E 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) SVP & GM, AST (Last) (First) (Middle) C/O 70 SIR JOHN ROGERSON'S QUAY 3. Date of Earliest Transaction (MM/DD/YY) 02/22/2024 (Street) DUBLIN, L22 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 2,210 ( 1 ) D

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 Options (right to buy) $ 147.05 ( 2 ) 05/31/2029 Ordinary Shares 2,136 D Employee Stock Options (right to buy) $ 182.22 ( 3 ) 06/01/2030 Ordinary Shares 3,728 D Employee Stock Options (right to buy) $ 210.3 ( 4 ) 06/02/2031 Ordinary Shares 2,764 D Employee Stock Options (right to buy) $ 250.06 ( 5 ) 06/02/2032 Ordinary Shares 4,100 D Employee Stock Options (right to buy) $ 219.97 ( 6 ) 05/31/2033 Ordinary Shares 4,192 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Kohler Kenneth E C/O 70 SIR JOHN ROGERSON'S QUAY DUBLIN, L22 SVP & GM, AST Signatures /s/ John P. Ubbing, Authorized Representative under Power of Attorney 02/23/2024 Signature of Reporting Person Date

Explanation of Responses:

( 1 )As of February 23, 2024, 2,210 of these ordinary shares are restricted. The restrictions on these ordinary shares lapse as follows: 373 on May 31, 2024; 154 on June 1, 2024; 131 on June 2, 2024; 225 on June 2, 2024; 373 on May 31, 2025; 131 on June 2, 2025; 225 on June 2, 2025; 373 on May 31, 2026; 225 on June 2, 2026. ( 2 )This option is fully vested and exercisable. ( 3 )2,796 of these options are exercisable. This option becomes exercisable as follows: 932 on June 1, 2024. ( 4 )1,382 of these options are exercisable. This option becomes exercisable as follows: 691 on June 2, 2024; 691 on June 2, 2025. ( 5 )1,025 of these options are exercisable. This option becomes exercisable as follows: 1,025 on June 2, 2024; 1,025 on June 2, 2025 and 1,025 on June 1, 2026. ( 6 )This option becomes exercisable as follows: 1,048 on May 31, 2024; 1,048 on May 31, 2025; 1,048 on May 31, 2026 and 1,048 on May 31, 2027.

Remarks: Exhibit 24 - Power of Attorney

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

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