# EDGAR Filing Document

**Accession Number:** 0002102487
**File Stem:** 0001628280-26-000924
**Filing Date:** 2026-1
**Character Count:** 5543
**Document Hash:** cf0f29255e7fff4c2c65e46630b9429b
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001628280-26-000924.hdr.sgml**: 20260106

**ACCESSION NUMBER**: 0001628280-26-000924

**CONFORMED SUBMISSION TYPE**: 3

**PUBLIC DOCUMENT COUNT**: 3

**CONFORMED PERIOD OF REPORT**: 20260101

**FILED AS OF DATE**: 20260106

**DATE AS OF CHANGE**: 20260106

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** McGowan Lindsey
- **CENTRAL INDEX KEY:** 0002102487

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 3
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-38848
- **FILM NUMBER:** 26512075

**MAIL ADDRESS:**
- **STREET 1:** 5960 HEISLEY ROAD
- **CITY:** MENTOR
- **STATE:** OH
- **ZIP:** 44145
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** STERIS plc
- **CENTRAL INDEX KEY:** 0001757898
- **STANDARD INDUSTRIAL CLASSIFICATION:** ORTHOPEDIC, PROSTHETIC & SURGICAL APPLIANCES & SUPPLIES [3842]
- **ORGANIZATION NAME:** 08 Industrial Applications and Services
- **EIN:** 000000000
- **STATE OF INCORPORATION:** L2
- **FISCAL YEAR END:** 0331

**BUSINESS ADDRESS:**
- **STREET 1:** 70 SIR JOHN ROGERSON'S QUAY
- **CITY:** DUBLIN
- **STATE:** L2
- **ZIP:** 2
- **BUSINESS PHONE:** 35312322000

**MAIL ADDRESS:**
- **STREET 1:** 70 SIR JOHN ROGERSON'S QUAY
- **CITY:** DUBLIN
- **STATE:** L2
- **ZIP:** 2

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** STERIS Ltd
- **DATE OF NAME CHANGE:** 20181101

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## FORM 3

### INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>McGowan Lindsey<br><sub>(Last) (First) (Middle)</sub><br>70 SIR JOHN ROGERSON'S QUAY<br><sub>(Street)</sub><br>DUBLIN 2, L2 D02 R296<br><sub>(City) (State) (Zip)</sub> | **3. Issuer Name and Ticker or Trading Symbol**<br>STERIS plc [ STE ] | **5. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  |
| **2. Date of Event Requiring Statement (Month/Day/Year)**<br>2026-01-01 | **4. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director   [ ] 10% Owner<br>[X] Officer (give title below)   [ ] Other (specify below)<br>_VP, Chf. Comp. & Quality Offc._ | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities Beneficially Owned

---

|  |  |  |  |
| --- | --- | --- | --- |
| 1. Title of Security | 2. Amount of Securities Beneficially Owned | 3. Ownership Form | 4. Nature of Indirect Beneficial Ownership |
| Ordinary Shares | 4230<sup>(1)</sup> | D |  |
| Ordinary Shares | 248 | I | See Footnote Below<sup>(2)</sup> |

---

## Table II - Derivative Securities Beneficially Owned

---

|  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 3. Title and Amount of Underlying Securities | 3. Title and Amount of Underlying Securities | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
| Employee Stock Option (right to buy) | <sup>(3)</sup> | 2033-05-31 | Ordinary Shares | 2480 | $219.97 | D |  |
| Employee Stock Option (right to buy) | <sup>(4)</sup> | 2034-06-04 | Ordinary Shares | 2008 | $251.34 | D |  |
| Employee Stock Option (right to buy) | <sup>(5)</sup> | 2035-06-03 | Ordinary Shares | 2056 | $267.66 | D |  |

---

### Footnotes:

(1) As of January 1, 2026, 2,952 of these ordinary shares are restricted. The restrictions on these ordinary shares lapse as follows: 660 on May 31, 2026; 1,128  on June 2, 2026; 588 on June 4, 2027 and 576 on June 3, 2028.

(2) Units representing 248 ordinary share equivalents are held on behalf of the Reporting Person under the STERIS Corporation 401(k) Plan as of January 2, 2026.

(3) 1,240 of these options are exercisable. This option becomes exercisable as follows: 620 on June 1, 2026 and 620 on May 31, 2027.

(4) 502 of these options are exercisable. This option becomes exercisable as follows: 502 on June 4, 2026; 502 on June 4, 2027 and 502 on June 5, 2028.

(5) This option becomes exercisable as follows: 514 on June 3, 2026; 514 on June 3, 2027; 514 on June 5, 2028 and 514 on June 4, 2029.

**Remarks:**
Exhibit 24 - Power of Attorney

**Signature:** /s/ John P. Ubbing, Authorized Representative under Power of Attorney  
**Date:** 2026-01-06

### Remarks:

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

* 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).

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

**Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.**