STERIS VP reports routine tax-withheld share vesting

STERIS plc executive Lindsey McGowan reported routine share updates related to vesting of restricted stock and associated tax withholding.

Rhea-AI Filing Summary

STERIS plc executive Lindsey McGowan reported routine share updates related to vesting of restricted stock and associated tax withholding. On June 1, 2026, 660 restricted shares vested, and 198 of those shares were withheld to cover taxes, a non-market "F" code tax-withholding disposition.

After these transactions, McGowan directly holds 4,830 ordinary shares, including 3,090 restricted shares subject to future vesting through January 2, 2029. In addition, 255 ordinary share equivalent units are held on her behalf in the STERIS Corporation 401(k) Plan. No open-market purchases or sales were reported.

Insider Trade Summary

Exercise Price or Tax Liability: 198 shares

Exercise Price or Tax Liability 2 txns

Insider McGowan Lindsey

Role VP, Chf. Comp. & Quality Offc.

Type	Security	Shares	Price	Value
Exercise Price or Tax Liability	Ordinary Shares	198	$0.00	$0.00
holding	Ordinary Shares	--	--	--

Holdings After Transaction: Ordinary Shares — 4,830 shares (Direct); Ordinary Shares — 255 shares (Indirect, See Footnote Below)

Footnotes (3)

1. F1. 198 shares were withheld from the 660 restricted shares that vested on June 1, 2026. These 198 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. F2. As of June 1, 2026, 3,090 of these ordinary shares are restricted. The restrictions on these ordinary shares lapse as follows: 1,128 on June 2, 2026; 588 on June 4, 2027; 576 on June 3, 2028 and 798 on January 2, 2029.
3. F3. Units representing 255 ordinary share equivalents are held on behalf of the Reporting Person under the STERIS Corporation 401(k) Plan as of May 29, 2026.

Key Figures

Restricted shares vested: 660 shares Shares withheld for taxes: 198 shares Direct shares after transaction: 4,830 shares +3 more

6 metrics

Restricted shares vested 660 shares Restricted ordinary shares vested on June 1, 2026

Shares withheld for taxes 198 shares Tax-withholding disposition from vested restricted shares

Direct shares after transaction 4,830 shares Ordinary shares held directly following June 1, 2026 transaction

Restricted shares outstanding 3,090 shares Restricted ordinary shares remaining as of June 1, 2026

Next vesting tranche 1,128 shares Restricted shares scheduled to vest on June 2, 2026

401(k) share equivalents 255 units Ordinary share equivalents in STERIS Corporation 401(k) Plan as of May 29, 2026

Key Terms

restricted shares, tax-withholding disposition, NYSE closing market price, 401(k) Plan, +1 more

5 terms

restricted shares financial

"198 shares were withheld from the 660 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.

tax-withholding disposition financial

"transaction_action": "tax-withholding disposition""

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.

NYSE closing market price financial

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

401(k) Plan financial

"Units representing 255 ordinary share equivalents are held on behalf of the Reporting Person under the STERIS Corporation 401(k) Plan as of May 29, 2026."

A 401(k) plan is a workplace retirement account that lets employees set aside part of their pay into a tax-advantaged savings pot, often with employers adding matching contributions — like a workplace piggy bank for future income. It matters to investors because the amount people save and how employers fund these plans influence consumer spending, corporate payroll costs and the flow of money into financial markets, which can affect stock prices and company valuations.

ordinary shares financial

"As of June 1, 2026, 3,090 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.

FAQ

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

What insider transaction did STERIS (STE) executive Lindsey McGowan report?

Lindsey McGowan reported a routine tax-withholding disposition of 198 ordinary shares. These shares were withheld from 660 restricted shares that vested on June 1, 2026, to satisfy tax obligations, rather than sold in the open market.

How many STERIS (STE) restricted shares vested for Lindsey McGowan?

A total of 660 restricted STERIS ordinary shares vested for Lindsey McGowan on June 1, 2026. From this vesting, 198 shares were withheld to cover taxes, leaving the remaining vested shares credited to her direct holdings.

What are Lindsey McGowan’s STERIS (STE) share holdings after this Form 4?

Following the reported transactions, Lindsey McGowan directly holds 4,830 STERIS ordinary shares. Of these, 3,090 shares remain restricted and will vest in several tranches between June 2, 2026, and January 2, 2029, according to the disclosed schedule.

How many STERIS (STE) shares were withheld for taxes from McGowan’s vesting?

198 STERIS ordinary shares were withheld from Lindsey McGowan’s 660 vested restricted shares. These withheld shares represent the value of taxes required under applicable employment or tax laws, as determined by the company using the NYSE closing price on June 1, 2026.

Does the STERIS (STE) Form 4 show any open-market buying or selling by McGowan?

The Form 4 does not show any open-market purchases or sales by Lindsey McGowan. The only disposition reported is 198 shares withheld for tax liability, classified under transaction code F, which is a non-market, administrative tax-withholding event.

What future vesting schedule is disclosed for McGowan’s STERIS (STE) restricted shares?

The filing states that 3,090 ordinary shares remain restricted, vesting in tranches: 1,128 on June 2, 2026; 588 on June 4, 2027; 576 on June 3, 2028; and 798 on January 2, 2029. These dates outline her remaining equity vesting timeline.

How many STERIS (STE) share equivalents does McGowan hold in the 401(k) Plan?

Lindsey McGowan has units representing 255 ordinary share equivalents held on her behalf in the STERIS Corporation 401(k) Plan as of May 29, 2026. These units reflect retirement-plan holdings separate from her directly held ordinary shares reported in the filing.

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

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Accepted by SEC EDGAR 06/03/2026 - 04:41 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^*

McGowan Lindsey

(Last) (First) (Middle)

C/O 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)
	VP, Chf. Comp. & Quality Offc.

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		198(1)	D	$0	4,830(2)	D
Ordinary Shares								255	I	See Footnote Below(3)

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. 198 shares were withheld from the 660 restricted shares that vested on June 1, 2026. These 198 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, 3,090 of these ordinary shares are restricted. The restrictions on these ordinary shares lapse as follows: 1,128 on June 2, 2026; 588 on June 4, 2027; 576 on June 3, 2028 and 798 on January 2, 2029.

3. Units representing 255 ordinary share equivalents are held on behalf of the Reporting Person under the STERIS Corporation 401(k) Plan as of May 29, 2026.

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)