Luxfer Holdings (NYSE: LXFR) director sells shares, receives 6,681 RSU grant

Rhea-AI Filing Summary

Luxfer Holdings plc director Sylvia Ann Stein reported several equity transactions involving Ordinary Shares and Restricted Stock Units (RSUs) on June 11, 2026. She exercised 8,953 RSUs into Ordinary Shares and then sold 4,010 Ordinary Shares in an open-market transaction at $15.05 per share, leaving her with 14,844 Ordinary Shares held directly.

Stein also received a grant of 6,681 RSUs as part of the issuer's Non-Executive Directors Equity Incentive Plan. These RSUs convert to Ordinary Shares on a 1-for-1 basis and are scheduled to vest on the day immediately preceding Luxfer’s 2027 Annual General Meeting of Shareholders. The vested RSUs exercised on June 11, 2026 included 331 additional units from accrued dividend equivalents.

Insider Trade Summary

Exercise and sale activity reported; no spread calculated

Exercise and Sale 4 txns

Insider Stein Sylvia Ann

Role Director

Sold 4,010 shs ($60K)

Approx. gross sale proceeds $60K

Approx. exercise cost $0.00

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Units	8,953	$0.00	$0.00
Grant/Award	Restricted Stock Units	6,681	$0.00	$0.00
Exercise	Ordinary Shares	8,953	$0.00	$0.00
Sale	Ordinary Shares	4,010	$15.05	$60K

Holdings After Transaction: Restricted Stock Units — 6,681 shares (Direct); Ordinary Shares — 14,844 shares (Direct)

Footnotes (3)

1. F1. Restricted Stock Units convert to Ordinary Shares on a 1 for 1 basis.
2. F2. The Restricted Stock Units fully vested on June 11, 2026. The above figure includes 331 additional Restricted Stock Units acquired from dividend equivalents. Restricted Stock Units accrue dividend equivalents, which are subject to the same terms and conditions as the underlying award and vest therewith.
3. F3. Represents the annual non-discretionary grant of awards to the Issuer's Non-Executive Directors in accordance with the terms of the Luxfer Holdings PLC Non-Executive Directors Equity Incentive Plan. The Restricted Stock Units vest on the day immediately preceding the Issuer's 2027 Annual General Meeting of Shareholders.

Key Figures

Shares sold: 4,010 shares Sale price: $15.05 per share Shares after sale: 14,844 shares +3 more

6 metrics

Shares sold 4,010 shares Ordinary Shares sold at $15.05 on June 11, 2026

Sale price $15.05 per share Open-market sale of 4,010 Ordinary Shares

Shares after sale 14,844 shares Ordinary Shares directly held following the sale

RSUs exercised 8,953 units Restricted Stock Units converted into Ordinary Shares

New RSU grant 6,681 units Annual non-discretionary award to Non-Executive Director

Dividend-equivalent RSUs 331 units Additional RSUs included in vested amount from dividend equivalents

Key Terms

Restricted Stock Units, derivative security, dividend equivalents, Non-Executive Directors Equity Incentive Plan

4 terms

Restricted Stock Units financial

"Restricted Stock Units convert to Ordinary Shares on a 1 for 1 basis."

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

derivative security financial

"transaction_code_description: Exercise or conversion of derivative security"

A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.

dividend equivalents financial

"The above figure includes 331 additional Restricted Stock Units acquired from dividend equivalents."

Payments tied to employee or contractor equity awards that mirror the cash dividends paid on the company’s stock; they give the holder the same economic benefit as owning the shares without transferring actual shares—often paid in cash or additional award units when the award becomes payable. Investors care because these payments affect a company’s compensation costs, cash flow and potential share dilution, and they signal how management is being rewarded and aligned with shareholders.

Non-Executive Directors Equity Incentive Plan financial

"grant of awards to the Issuer's Non-Executive Directors in accordance with the terms of the Luxfer Holdings PLC Non-Executive Directors Equity Incentive Plan."

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

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 06/15/2026 - 07:26 AM Accepted by SEC EDGAR 06/15/2026 - 07:25 AM 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^*

Stein Sylvia Ann

(Last) (First) (Middle)

LUMNS LANE

(Street)

MANCHESTER M27 8LN

(City) (State) (Zip)

UNITED KINGDOM

(Country)

2. Issuer Name and Ticker or Trading Symbol
LUXFER HOLDINGS PLC [ LXFR ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/11/2026

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	06/11/2026		M		8,953	A	(1)	18,854	D
Ordinary Shares	06/11/2026		S		4,010	D	$15.05	14,844	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
Restricted Stock Units	(1)	06/11/2026		M			8,953	(2)	(2)	Ordinary Shares	8,953	(1)	0	D
Restricted Stock Units	(1)	06/11/2026		A		6,681		(3)	(3)	Ordinary Shares	6,681	(1)	6,681	D

Explanation of Responses:

1. Restricted Stock Units convert to Ordinary Shares on a 1 for 1 basis.

2. The Restricted Stock Units fully vested on June 11, 2026. The above figure includes 331 additional Restricted Stock Units acquired from dividend equivalents. Restricted Stock Units accrue dividend equivalents, which are subject to the same terms and conditions as the underlying award and vest therewith.

3. Represents the annual non-discretionary grant of awards to the Issuer's Non-Executive Directors in accordance with the terms of the Luxfer Holdings PLC Non-Executive Directors Equity Incentive Plan. The Restricted Stock Units vest on the day immediately preceding the Issuer's 2027 Annual General Meeting of Shareholders.

	/s/ Benjamin Coulson under Power of Attorney for Sylvia A. Stein	06/15/2026
	** 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)