[Form 4] STERIS plc Insider Trading Activity

Rhea-AI Filing Summary

STERIS plc Senior Vice President and CFO Karen L. Burton reported a routine tax-withholding transaction. On June 4, 2026, 90 ordinary shares were withheld at $212.24 per share from 306 restricted shares that vested to cover required taxes, not an open-market sale.

After this transaction, Burton directly holds 13,184 ordinary shares, including 9,282 restricted shares as of June 8, 2026, which are scheduled to lapse in stages between October 1, 2026 and June 4, 2029.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Burton Karen L

Role Sr. Vice Pres., CFO

Type	Security	Shares	Price	Value
Tax Withholding	Ordinary Shares	90	$212.24	$19K

Holdings After Transaction: Ordinary Shares — 13,184 shares (Direct, null)

Footnotes (1)

1. 90 shares were withheld from the 306 restricted shares that vested on June 4, 2026. These 90 shares represent the value of the taxes required to be withheld pursuant to applicable employment or tax laws, as determined by the Issuer. These vested shares were valued at the NYSE closing market price on June 4, 2026. As of June 8, 2026, 9,282 of these ordinary shares are restricted. The restrictions on these ordinary shares lapse as follows: 783 on October 1, 2026; 1,775 on June 2, 2027; 651 on June 3, 2027; 306 on June 4, 2027; 783 on October 1, 2027; 1,775 on June 2, 2028; 651 on June 5, 2028 and 783 on October 1, 2028 and 1,775 on June 4, 2029.

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Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

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
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Burton Karen L

(Last) (First) (Middle)

70 SIR JOHN ROGERSON'S QUAY

(Street)

DUBLIN 2 D02 R296

(City) (State) (Zip)

IRELAND

(Country)

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)
	Sr. Vice Pres., CFO

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/04/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	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	06/04/2026		F		90(1)	D	$212.24	13,184(2)	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 (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	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 (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (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: 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

Explanation of Responses:

1. 90 shares were withheld from the 306 restricted shares that vested on June 4, 2026. These 90 shares represent the value of the taxes required to be withheld pursuant to applicable employment or tax laws, as determined by the Issuer. These vested shares were valued at the NYSE closing market price on June 4, 2026.

2. As of June 8, 2026, 9,282 of these ordinary shares are restricted. The restrictions on these ordinary shares lapse as follows: 783 on October 1, 2026; 1,775 on June 2, 2027; 651 on June 3, 2027; 306 on June 4, 2027; 783 on October 1, 2027; 1,775 on June 2, 2028; 651 on June 5, 2028 and 783 on October 1, 2028 and 1,775 on June 4, 2029.

Remarks:

	/s/ John P. Ubbing, Authorized Representative under Power of Attorney	06/08/2026
	** Signature of Reporting Person	Date
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.
* Form 4: SEC 1474 (03-26)