STERIS CFO Karen L. Burton sells 5,880 shares

Available on EDGAR 11/12/2026 - 04:32 PM EST Accepted by SEC EDGAR 11/12/2026 - 04:32 PM EST Learn about SEC filing dates

Rhea-AI Filing Summary

STERIS plc CFO Karen L. Burton exercised options for 5,880 ordinary shares on November 11, 2026, at an exercise price of $147.05 per share, then sold 5,880 shares at a weighted average price of $255.62 per share. Sale prices ranged from $255.22 to $256.18 per share. No Rule 10b5-1 plan is reported, and the option position following the exercise was zero. As of November 12, 2026, 8,499 ordinary shares were restricted.

Insider Trade Summary

Exercise and Sale: 5,880 shares ($638K approx. pre-tax spread)

Exercise and Sale 3 txns

Insider Burton Karen L

Role Sr. Vice Pres., CFO

Sold 5,880 shs ($1.50M)

Approx. gross sale proceeds $1.50M

Approx. exercise cost $865K

Approx. pre-tax spread $638K

Type	Security	Shares	Price	Value
Exercise	Employee Stock Option (right to buy) F3	5,880	$0.00	$0.00
Exercise	Ordinary Shares	5,880	$147.05	$865K
Sale	Ordinary Shares F1, F2	5,880	$255.62	$1.50M

Holdings After Transaction: Employee Stock Option (right to buy) — 0 options (Direct); Ordinary Shares — 12,956 shares (Direct)

Footnotes (3)

1. F1. Price reflects a weighted average sale price for multiple transactions ranging from $255.22 to $256.18 per share, inclusive. The Reporting Person undertakes to provide, upon request by the SEC Staff, the Issuer or a security holder of the Issuer, full information regarding the number of shares sold at each separate price.
2. F2. As of November 12, 2026, 8,499 of these ordinary shares are restricted. The restrictions on these ordinary shares lapse as follows: 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; 783 on October 1, 2028 and 1,775 on June 4, 2029.
3. F3. This option to purchase 5,880 STERIS plc ordinary shares, which is fully vested, was received in connection with the redomiciliation of STERIS plc to Ireland in March 2019 in exchange for an option to purchase 5,880 ordinary shares for $147.05 per share in STERIS plc prior to the redomiciliation ("Old STERIS"), subject to the same terms and conditions as the original Old STERIS stock option.

Key Figures

Options exercised: 5,880 options Exercise price: $147.05 per share Ordinary shares sold: 5,880 shares +4 more

7 metrics

Options exercised 5,880 options November 11, 2026; the options covered ordinary shares

Exercise price $147.05 per share Option exercise on November 11, 2026

Ordinary shares sold 5,880 shares November 11, 2026

Weighted average sale price $255.62 per share Sale on November 11, 2026

Sale price range $255.22–$256.18 per share Prices across the reported sale transactions

Restricted ordinary shares 8,499 shares As of November 12, 2026

Option expiration date May 31, 2029 Expiration date of the exercised option

Key Terms

weighted average sale price, fully vested, redomiciliation, restricted

4 terms

weighted average sale price financial

"Price reflects a weighted average sale price for multiple transactions"

fully vested financial

"This option to purchase 5,880 STERIS plc ordinary shares, which is fully vested"

redomiciliation technical

"received in connection with the redomiciliation of STERIS plc to Ireland"

Redomiciliation is when a company legally changes its country of incorporation while keeping the same business and assets, like moving a house to a new neighborhood but keeping the same furniture. Investors care because the company then follows a different set of laws and tax rules, which can change shareholder rights, reporting standards, dividend treatment and the ease of trading the stock, potentially affecting risk and return.

restricted financial

"8,499 of these ordinary shares are restricted"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many STE shares did Karen L. Burton sell, and at what price?

Karen L. Burton sold 5,880 STERIS ordinary shares on November 11, 2026, at a weighted average price of $255.62 per share. Individual sale prices ranged from $255.22 to $256.18 per share. No Rule 10b5-1 plan is reported.

What were the terms of Karen L. Burton’s STERIS option exercise?

Burton exercised a fully vested option for 5,880 ordinary shares at $147.05 per share. The option was received in March 2019 in connection with STERIS plc’s redomiciliation to Ireland, in exchange for an option on pre-redomiciliation STERIS shares, and was due to expire May 31, 2029.

How many of Karen L. Burton’s STERIS ordinary shares were restricted?

As of November 12, 2026, 8,499 ordinary shares were restricted. The restrictions lapse in tranches on June 2, 3 and 4, 2027; October 1, 2027; June 2 and 5, 2028; October 1, 2028; and June 4, 2029.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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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)
11/11/2026

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	11/11/2026		M		5,880	A	$147.05	18,836	D
Ordinary Shares	11/11/2026		S		5,880	D	$255.62(1)	12,956(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
Employee Stock Option (right to buy)	$147.05	11/11/2026		M			5,880	(3)	05/31/2029	Ordinary Shares	5,880	$0	0	D

Explanation of Responses:

1. Price reflects a weighted average sale price for multiple transactions ranging from $255.22 to $256.18 per share, inclusive. The Reporting Person undertakes to provide, upon request by the SEC Staff, the Issuer or a security holder of the Issuer, full information regarding the number of shares sold at each separate price.

2. As of November 12, 2026, 8,499 of these ordinary shares are restricted. The restrictions on these ordinary shares lapse as follows: 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; 783 on October 1, 2028 and 1,775 on June 4, 2029.

3. This option to purchase 5,880 STERIS plc ordinary shares, which is fully vested, was received in connection with the redomiciliation of STERIS plc to Ireland in March 2019 in exchange for an option to purchase 5,880 ordinary shares for $147.05 per share in STERIS plc prior to the redomiciliation ("Old STERIS"), subject to the same terms and conditions as the original Old STERIS stock option.

Remarks:

	/s/ John P. Ubbing, Authorized Representative under Power of Attorney	11/12/2026
	** 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)