STE: 8-K company filing

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 31, 2026 STERIS plc (Exact Name of Registrant as Specified in Charter) Ireland 001-38848 98-1455064 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.) 70 Sir John Rogerson’s Quay Dublin 2 , Ireland D02 R296 (Address of Principal Executive Offices) + 353 1 232 2000 (Registrant’s Telephone Number, Including Area Code) Not Applicable (Former name or former address, if changed since last report.) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act: Title of each class Trading Symbol(s) Name of each exchange on which registered Ordinary Shares, $0.001 par value STE New York Stock Exchange 2.700% Senior Notes due 2031 STE/31 New York Stock Exchange 3.750% Senior Notes due 2051 STE/51 New York Stock Exchange Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter). E