Tax withholding trims STERIS (NYSE: STE) VP restricted share vesting

Rhea-AI Filing Summary

STERIS plc reported that V.P. & Corporate Treasurer Renato Tamaro had 65 Ordinary Shares withheld on June 4, 2026 as a tax-withholding disposition tied to a restricted share vesting. The 65 shares came from 221 restricted shares that vested that day and were valued at the NYSE closing price on June 4, 2026. Following this withholding, Tamaro directly holds 6,194 Ordinary Shares, of which 1,405 remain restricted. These restrictions are scheduled to lapse in tranches between June 2, 2027 and June 4, 2029.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Tamaro Renato

Role V.P. & Corporate Treasurer

Type	Security	Shares	Price	Value
Tax Withholding	Ordinary Shares	65	$212.24	$14K

Holdings After Transaction: Ordinary Shares — 6,194 shares (Direct, null)

Footnotes (1)

1. 65 shares were withheld from the 221 restricted shares that vested on June 4, 2026. These 65 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, 1,405 of these ordinary shares are restricted. The restrictions on these ordinary shares lapse as follows: 250 on June 2, 2027; 217 on June 3, 2027; 221 on June 4, 2027; 250 on June 2, 2028; 217 on June 5, 2028 and 250 on June 4, 2029.

Key Figures

Tax-withheld shares: 65 shares Vested restricted shares: 221 shares Post-transaction holdings: 6,194 shares +4 more

7 metrics

Tax-withheld shares 65 shares Withheld on June 4, 2026 to cover taxes on vested restricted shares

Vested restricted shares 221 shares Restricted shares that vested on June 4, 2026

Post-transaction holdings 6,194 shares Ordinary Shares directly held after the June 4, 2026 transaction

Restricted shares outstanding 1,405 shares Restricted Ordinary Shares as of June 8, 2026

First restriction lapse 250 shares Restrictions lapse on June 2, 2027

Final restriction lapse 250 shares Restrictions lapse on June 4, 2029

Tax valuation price $212.24 per share NYSE closing market price on June 4, 2026 used for tax withholding

Key Terms

tax-withholding disposition, restricted shares, NYSE closing market price, Ordinary Shares

4 terms

tax-withholding disposition financial

"65 shares were withheld from the 221 restricted shares that vested on June 4, 2026. These 65 shares represent the value of the taxes required to be withheld"

A tax-withholding disposition is an event or transaction—such as selling or transferring securities, exercising options, or receiving compensation—that triggers a requirement to hold back part of the payment and remit it to tax authorities. It matters to investors because it reduces the cash they receive immediately and can change the timing and amount of taxable income, like a cashier taking a portion of your sale proceeds to pay taxes before you get the rest.

restricted shares financial

"65 shares were withheld from the 221 restricted shares that vested on June 4, 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.

NYSE closing market price financial

"These vested shares were valued at the NYSE closing market price on June 4, 2026."

Ordinary Shares financial

"As of June 8, 2026, 1,405 of these ordinary shares are restricted."

Ordinary shares are a type of ownership stake in a company, giving shareholders a right to participate in the company’s profits and decision-making through voting. They are similar to owning a piece of a business, and their value can rise or fall based on the company's performance. Investors buy ordinary shares to potentially earn dividends and benefit from the company's growth over time.

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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^*

Tamaro Renato

(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)
	V.P. & Corporate Treasurer

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		65(1)	D	$212.24	6,194(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. 65 shares were withheld from the 221 restricted shares that vested on June 4, 2026. These 65 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, 1,405 of these ordinary shares are restricted. The restrictions on these ordinary shares lapse as follows: 250 on June 2, 2027; 217 on June 3, 2027; 221 on June 4, 2027; 250 on June 2, 2028; 217 on June 5, 2028 and 250 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)

FAQ

What insider transaction did STERIS (STE) report for Renato Tamaro?

STERIS reported that V.P. & Corporate Treasurer Renato Tamaro had 65 Ordinary Shares withheld to cover taxes on June 4, 2026. These shares were taken from 221 restricted shares that vested that day and were valued at the NYSE closing price.

Was the STERIS (STE) Form 4 transaction an open-market sale?

The Form 4 describes a tax-withholding disposition, not an open-market sale. Sixty-five shares were withheld by the company from vested restricted shares to satisfy tax obligations under applicable employment or tax laws, using the NYSE closing market price.

How many STERIS (STE) shares does Renato Tamaro hold after this transaction?

After the June 4, 2026 tax-withholding event, Renato Tamaro directly holds 6,194 STERIS Ordinary Shares. This total includes both unrestricted and restricted shares as disclosed in the filing’s ownership figures following the reported transaction.

How many of Renato Tamaro’s STERIS (STE) shares remain restricted?

As of June 8, 2026, 1,405 of Renato Tamaro’s STERIS Ordinary Shares remain restricted. The filing states that these restrictions will lapse in several tranches between June 2, 2027 and June 4, 2029.

What restricted shares vested for Renato Tamaro at STERIS (STE)?

On June 4, 2026, 221 restricted STERIS Ordinary Shares vested for Renato Tamaro. From this vesting, 65 shares were withheld to cover required taxes, based on the NYSE closing market price on that date, as determined by the company.

When will the remaining restricted STERIS (STE) shares for Renato Tamaro vest?

The filing states that remaining restrictions on 1,405 STERIS Ordinary Shares will lapse in tranches: 250 on June 2, 2027; 217 on June 3, 2027; 221 on June 4, 2027; 250 on June 2, 2028; 217 on June 5, 2028; and 250 on June 4, 2029.