[Form 4] STERIS plc Insider Trading Activity

Filing Impact

(Neutral)

Filing Sentiment

(Neutral)

Form Type

Rhea-AI Filing Summary

STERIS plc senior executive Cary L. Majors reported routine equity compensation activity. On June 1, 2026, 2,697 restricted ordinary shares vested, and 768 of those shares were withheld to cover tax obligations, reflected as a tax-withholding disposition rather than an open-market sale.

After this event, Majors directly held 12,659 ordinary shares, including 7,441 restricted shares as of June 1, 2026, with restrictions scheduled to lapse in tranches through 2028. In addition, units representing 67 ordinary share equivalents were held for Majors under the STERIS Corporation 401(k) Plan.

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider Majors Cary L

Role SVP and President, Healthcare

Type	Security	Shares	Price	Value
Tax Withholding	Ordinary Shares	768	$0.00	--
holding	Ordinary Shares	--	--	--

Holdings After Transaction: Ordinary Shares — 12,659 shares (Direct, null); Ordinary Shares — 67 shares (Indirect, See Footnote Below)

Footnotes (1)

768 shares were withheld from the 2,697 restricted shares that vested on June 1, 2026. These 768 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, 7,441 of these ordinary shares are restricted. The restrictions on these ordinary shares lapse as follows: 2,140 on June 2, 2026; 2,379 on June 4, 2027 and 2,922 on June 5, 2028. Units representing 67 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

Shares withheld for taxes: 768 shares Restricted shares vested: 2,697 shares Direct holdings after transaction: 12,659 shares +5 more

8 metrics

Shares withheld for taxes 768 shares Withheld from vested restricted shares on June 1, 2026

Restricted shares vested 2,697 shares Restricted ordinary shares vested on June 1, 2026

Direct holdings after transaction 12,659 shares Ordinary shares directly held following tax-withholding disposition

Restricted shares remaining 7,441 shares Restricted ordinary shares as of June 1, 2026

Upcoming lapse 2026 2,140 shares Restrictions lapse on June 2, 2026

Upcoming lapse 2027 2,379 shares Restrictions lapse on June 4, 2027

Upcoming lapse 2028 2,922 shares Restrictions lapse on June 5, 2028

401(k) plan units 67 share equivalents Held under STERIS Corporation 401(k) Plan as of May 29, 2026

Key Terms

restricted shares, tax-withholding disposition, ordinary share equivalents, 401(k) Plan

4 terms

restricted shares financial

"768 shares were withheld from the 2,697 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

"Payment of exercise price or tax liability by delivering securities"

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.

401(k) Plan financial

"Units representing 67 ordinary share equivalents are held on behalf of the Reporting Person under the STERIS Corporation 401(k) Plan"

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.

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Form 4 Insider Transactions: What Each Field Means →

06/03/2026 - 04:41 PM

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^*

Majors Cary L

(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)
	SVP and President, Healthcare

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Ordinary Shares	06/01/2026		F		768⁽¹⁾	D	$0	12,659⁽²⁾	D
Ordinary Shares								67	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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

Explanation of Responses:

1. 768 shares were withheld from the 2,697 restricted shares that vested on June 1, 2026. These 768 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, 7,441 of these ordinary shares are restricted. The restrictions on these ordinary shares lapse as follows: 2,140 on June 2, 2026; 2,379 on June 4, 2027 and 2,922 on June 5, 2028.

3. Units representing 67 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)

Source: View Original Filing on SEC EDGAR

FAQ

What insider transaction did STERIS (STE) report for Cary L. Majors?

STERIS reported that Cary L. Majors had 2,697 restricted ordinary shares vest on June 1, 2026. Of these, 768 shares were withheld to satisfy tax obligations, recorded as a tax-withholding disposition rather than an open-market purchase or sale.

How many STERIS (STE) shares were withheld for taxes in this Form 4?

The Form 4 shows 768 ordinary shares were withheld to cover taxes when 2,697 restricted shares vested on June 1, 2026. The issuer determined the tax value using the NYSE closing market price for STERIS shares on that vesting date.

How many STERIS (STE) shares does Cary L. Majors hold after this transaction?

Following the reported tax-withholding disposition, Cary L. Majors directly held 12,659 STERIS ordinary shares. A portion of these direct holdings remains subject to vesting restrictions that lapse in stages between June 2026 and June 2028.

How many of Cary L. Majors’ STERIS (STE) shares remain restricted?

As of June 1, 2026, 7,441 of Cary L. Majors’ directly held STERIS ordinary shares were restricted. These restrictions are scheduled to lapse in tranches on June 2, 2026, June 4, 2027, and June 5, 2028, according to the Form 4 footnotes.

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

The Form 4 does not show open-market buying or selling by Cary L. Majors. It records a tax-withholding disposition of 768 shares related to restricted share vesting, which is a compensation and tax event, not a discretionary market trade.

What STERIS (STE) holdings does Cary L. Majors have in the 401(k) Plan?

Units representing 67 ordinary share equivalents are held on behalf of Cary L. Majors under the STERIS Corporation 401(k) Plan. This figure is reported as of May 29, 2026, and reflects indirect ownership through the retirement plan.