STERIS executive reports routine tax share withholding

STERIS plc senior executive reports routine tax withholding transaction.

Rhea-AI Filing Summary

STERIS plc senior executive reports routine tax withholding transaction. On June 4, 2026, Sr. VP and General Counsel John Adam Zangerle had 401 ordinary shares withheld at $212.24 per share to cover taxes on 1,376 restricted shares that vested that day, rather than selling shares in the market.

After this withholding, he directly holds 36,678 ordinary shares, including 8,239 restricted shares as of June 8, 2026. The remaining restricted shares are scheduled to lapse in stages through June 4, 2029, reflecting ongoing equity-based compensation.

Insider Trade Summary

Exercise Price or Tax Liability: 401 shares

Exercise Price or Tax Liability 1 txn

Insider Zangerle John Adam

Role Sr. VP, Gen Counsel, and Sec.

Type	Security	Shares	Price	Value
Exercise Price or Tax Liability	Ordinary Shares	401	$212.24	$85K

Holdings After Transaction: Ordinary Shares — 36,678 shares (Direct)

Footnotes (2)

1. F1. 401 shares were withheld from the 1,376 restricted shares that vested on June 4, 2026. These 401 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. F2. As of June 8, 2026, 8,239 of these ordinary shares are restricted. The restrictions on these ordinary shares lapse as follows: 1,453 on June 2, 2027; 1,252 on June 3, 2027; 1,376 on June 4, 2027; 1,453 on June 2, 2028; 1,252 on June 5, 2028 and 1,453 on June 4, 2029.

Key Figures

Tax-withheld shares: 401 shares Share value for withholding: $212.24 per share Restricted shares vested: 1,376 shares +4 more

7 metrics

Tax-withheld shares 401 shares Withheld for taxes on June 4, 2026

Share value for withholding $212.24 per share NYSE closing price on June 4, 2026

Restricted shares vested 1,376 shares Restricted shares vesting on June 4, 2026

Shares held after transaction 36,678 shares Direct holdings following tax withholding

Restricted shares outstanding 8,239 shares Restricted ordinary shares as of June 8, 2026

Future vesting tranche 1,453 shares Restrictions lapse on June 2, 2027

Final vesting tranche 1,453 shares Restrictions lapse on June 4, 2029

Key Terms

restricted shares, taxes required to be withheld, NYSE closing market price, restricted ordinary shares, +1 more

5 terms

restricted shares financial

"401 shares were withheld from the 1,376 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.

taxes required to be withheld financial

"These 401 shares represent the value of the taxes required to be withheld pursuant to applicable employment or tax laws."

NYSE closing market price financial

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

restricted ordinary shares financial

"As of June 8, 2026, 8,239 of these ordinary shares are restricted."

Restricted ordinary shares are common stock that cannot be sold or transferred until certain conditions are met—such as a time period passing, performance targets being reached, or regulatory approvals—often issued to employees, founders, or early investors. They matter because those restrictions delay when the shares can enter the market, affecting the future supply of shares, potential dilution and company valuation; think of them as goods locked in a warehouse until release conditions are satisfied.

lapse financial

"The restrictions on these ordinary shares lapse as follows: 1,453 on June 2, 2027..."

FAQ

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

What did STERIS (STE) executive John Adam Zangerle report in this Form 4?

He reported a routine tax-withholding disposition of 401 ordinary shares. These shares were withheld by the company to cover taxes on vested restricted stock, rather than sold in the open market, and reflect standard equity compensation administration.

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

No, the transaction was not an open-market sale. The 401 shares were withheld by STERIS to satisfy tax obligations on 1,376 restricted shares that vested, meaning the executive did not choose to sell shares into the market.

How many STERIS (STE) shares does John Adam Zangerle hold after this filing?

After the tax-withholding event, he directly holds 36,678 ordinary shares. This total includes both unrestricted and restricted shares, giving context that the 401-share disposition is small relative to his overall equity position in the company.

What restricted STERIS (STE) shares remain for John Adam Zangerle and when do they vest?

As of June 8, 2026, 8,239 of his ordinary shares are restricted. These restrictions are scheduled to lapse in several tranches between June 2, 2027 and June 4, 2029, reflecting a long-term incentive structure tied to continued service.

At what price were the STERIS (STE) shares valued for the tax withholding?

The 401 withheld shares were valued at the NYSE closing market price of $212.24 on June 4, 2026. This price was used by STERIS to determine the number of shares required to satisfy applicable employment and tax withholding obligations.

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

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Accepted by SEC EDGAR 06/08/2026 - 04:33 PM Learn about SEC filing dates

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^*

Zangerle John Adam

(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. VP, Gen Counsel, and Sec.

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		401(1)	D	$212.24	36,678(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. 401 shares were withheld from the 1,376 restricted shares that vested on June 4, 2026. These 401 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, 8,239 of these ordinary shares are restricted. The restrictions on these ordinary shares lapse as follows: 1,453 on June 2, 2027; 1,252 on June 3, 2027; 1,376 on June 4, 2027; 1,453 on June 2, 2028; 1,252 on June 5, 2028 and 1,453 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)