Karen L. Burton - Oct 1, 2025 Form 4 Insider Report for STERIS plc (STE)

Role: Sr. Vice Pres., CFO
Signature: /s/ John P. Ubbing, Authorized Representative under Power of Attorney
Stock symbol: STE
Transactions as of: Oct 1, 2025
Transactions value $: $0
Form type: 4
Date filed: 10/3/2025, 04:49 PM
Previous filing: Aug 12, 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Burton Karen L	Sr. Vice Pres., CFO	70 SIR JOHN ROGERSON'S QUAY, DUBLIN 2, IRELAND	/s/ John P. Ubbing, Authorized Representative under Power of Attorney	2025-10-03	0001697095

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	STE	Ordinary Shares	Tax liability	$0	-39	-0.65%	$0.00	5.96K	Oct 1, 2025	Direct	F1, F2
transaction	STE	Ordinary Shares	Award	$0	+2.35K	+39.45%	$0.00	8.3K	Oct 1, 2025	Direct	F3

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	STE	Employee Stock Option (right to buy)	Award	$0	+8.36K		$0.00	8.36K	Oct 1, 2025	Ordinary Shares	8.36K	$265.43	Direct	F4

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	39 shares were withheld from the 86 restricted shares that vested on October 1, 2025. These 39 shares represent the value of the taxes required to be withheld pursuant to applicable employment or tax laws, as determined by the Issuer. These 86 ordinary shares were awarded to Ms. Burton on October 1, 2021. These vested shares were valued at the NYSE closing market price on October 1, 2025.
F2	As of October 1, 2025, 3,130 of these ordinary shares are restricted. The restrictions on these ordinary shares lapse as follows: 340 on June 1, 2026; 225 on June 2, 2026; 651 on June 3, 2026; 306 on June 4, 2026; 651 on June 3, 2027; 306 on June 4, 2027 and 651 on June 5, 2028.
F3	As of October 1, 2025, 5,479 of these ordinary shares are restricted. The restrictions on these ordinary shares lapse as follows: 340 on June 1, 2026; 225 on June 2, 2026; 651 on June 3, 2026; 306 on June 4, 2026; 783 on October 1, 2026; 651 on June 3, 2027; 306 on June 4, 2027; 783 on October 1, 2027; 651 on June 5, 2028 and 783 on October 1, 2028.
F4	This option becomes exercisable as follows: 2,089 on October 1, 2026; 2,089 on October 1, 2027; 2,089 on October 1, 2028 and 2,089 on October 1, 2029.