STERIS (STE) CEO has shares withheld to cover taxes on vesting awards

Rhea-AI Filing Summary

STERIS plc President and CEO Daniel A. Carestio reported a routine tax-related share disposition. On June 1, 2026, 1,254 ordinary shares were withheld from 4,308 restricted shares that vested, to cover taxes determined under applicable laws at the NYSE closing market price.

After this withholding, Carestio directly holds 49,842 ordinary shares. As of June 1, 2026, 28,746 of these are restricted shares scheduled to lapse over several dates through June 5, 2028, reflecting ongoing equity-based compensation rather than an open-market sale.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Carestio Daniel A

Role President and CEO

Type	Security	Shares	Price	Value
Tax Withholding	Ordinary Shares	1,254	$0.00	--

Holdings After Transaction: Ordinary Shares — 49,842 shares (Direct, null)

Footnotes (1)

1. 1,254 shares were withheld from the 4,308 restricted shares that vested on June 1, 2026. These 1,254 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 1, 2026. As of June 1, 2026, 28,746 of these ordinary shares are restricted. The restrictions on these ordinary shares lapse as follows: 5,937 on June 3, 2026; 2,369 on June 2, 2026; 4,283 on June 4, 2026; 5,937 on June 3, 2027; 4,283 on June 4, 2027; and 5,937 on June 5, 2028.

Key Figures

Shares withheld for taxes: 1,254 shares Restricted shares vested: 4,308 shares Shares held after transaction: 49,842 shares +4 more

7 metrics

Shares withheld for taxes 1,254 shares Withheld from vested restricted shares on June 1, 2026

Restricted shares vested 4,308 shares Restricted shares vesting on June 1, 2026

Shares held after transaction 49,842 shares Ordinary shares directly held following tax withholding

Restricted shares outstanding 28,746 shares Restricted ordinary shares as of June 1, 2026

Upcoming lapse 2026 5,937; 2,369; 4,283 shares Restrictions lapse June 3, June 2, and June 4, 2026

Upcoming lapse 2027 5,937; 4,283 shares Restrictions lapse June 3 and June 4, 2027

Upcoming lapse 2028 5,937 shares Restrictions lapse June 5, 2028

Key Terms

restricted shares, withheld pursuant to applicable employment or tax laws, NYSE closing market price, restrictions on these ordinary shares lapse

4 terms

restricted shares financial

"1,254 shares were withheld from the 4,308 restricted shares that vested on June 1, 2026."

Restricted shares are company stock that cannot be sold or transferred immediately because they are subject to legal or contractual limits, such as a required holding period or performance conditions. They matter to investors because these locked-up shares can affect a company’s available stock for trading, future dilution, and insider incentives—imagine a gift that can’t be cashed until certain conditions are met, which changes when and how much supply can suddenly enter the market.

withheld pursuant to applicable employment or tax laws financial

"These 1,254 shares represent the value of the taxes required to be withheld pursuant to applicable employment or tax laws, as determined by the Issuer."

NYSE closing market price financial

"These vested shares were valued at the NYSE closing market price on June 1, 2026."

restrictions on these ordinary shares lapse financial

"The restrictions on these ordinary shares lapse as follows: 5,937 on June 3, 2026; 2,369 on June 2, 2026; 4,283 on June 4, 2026; 5,937 on June 3, 2027; 4,283 on June 4, 2027; and 5,937 on June 5, 2028."

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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^*

Carestio Daniel A

(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)

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	President and CEO

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/01/2026

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	06/01/2026		F		1,254(1)	D	$0	49,842(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. 1,254 shares were withheld from the 4,308 restricted shares that vested on June 1, 2026. These 1,254 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 1, 2026.

2. As of June 1, 2026, 28,746 of these ordinary shares are restricted. The restrictions on these ordinary shares lapse as follows: 5,937 on June 3, 2026; 2,369 on June 2, 2026; 4,283 on June 4, 2026; 5,937 on June 3, 2027; 4,283 on June 4, 2027; and 5,937 on June 5, 2028.

Remarks:

	/s/ John P. Ubbing, Authorized Representative under Power of Attorney	06/03/2026
	** 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)

FAQ

What insider transaction did STERIS (STE) CEO Daniel Carestio report?

Daniel A. Carestio reported a tax-withholding disposition of 1,254 STERIS ordinary shares. These shares were withheld from 4,308 restricted shares that vested on June 1, 2026, to satisfy tax obligations determined under applicable employment or tax laws by the issuer.

Were STERIS (STE) shares sold on the market in this Form 4?

No open-market sale was reported. The Form 4 shows 1,254 shares withheld from vested restricted shares to cover taxes. The issuer valued these shares at the NYSE closing market price on June 1, 2026, consistent with standard tax-withholding practices.

How many STERIS (STE) shares does the CEO hold after this transaction?

Following the tax-withholding transaction, Daniel A. Carestio directly holds 49,842 STERIS ordinary shares. This total includes both unrestricted and restricted shares, providing context that the reported disposition represents only a small portion of his overall equity position.

What restricted STERIS (STE) share awards vest for the CEO after June 1, 2026?

As of June 1, 2026, 28,746 of Daniel A. Carestio’s ordinary shares are restricted. These restrictions lapse in tranches on June 2, June 3, and June 4, 2026; June 3 and June 4, 2027; and June 5, 2028, reflecting ongoing long-term incentive awards.

How many STERIS (STE) restricted shares vested for the CEO on June 1, 2026?

On June 1, 2026, 4,308 restricted STERIS ordinary shares vested for Daniel A. Carestio. From this vesting, 1,254 shares were withheld by the issuer to cover required tax obligations, with the vested shares valued at the NYSE closing market price that day.