[Form 4] LUXFER HOLDINGS PLC Insider Trading Activity

Rhea-AI Filing Summary

Luxfer Holdings PLC executive Jeffrey C. Moorefield reported multiple restricted stock unit (RSU) vestings and exercises on March 20, 2026, resulting in additional Ordinary Shares and routine tax withholding. He exercised RSUs covering 3,157 Ordinary Shares and delivered 1,280 shares at prices around $11.82–$11.92 to satisfy tax obligations, which are not open-market sales. Following these transactions, he directly owned 20,759 Ordinary Shares. Footnotes explain that the RSUs convert 1-for-1 into Ordinary Shares for a nominal $1.00 per share and that the awards vested upon achieving EPS growth and relative total shareholder return goals for the performance period ended December 31, 2025.

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
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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).

X

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^*

Moorefield Jeffrey C.

(Last) (First) (Middle)

LUXFER HOLDINGS PLC

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)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/20/2026

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	03/20/2026		M		623	A	(1)	19,505	D
Ordinary Shares	03/20/2026		F		253	D	$11.82	19,252	D
Ordinary Shares	03/20/2026		M		1,544	A	(1)	20,796	D
Ordinary Shares	03/20/2026		F		626	D	$11.82	20,170	D
Ordinary Shares	03/20/2026		M		990	A	(1)	21,160	D
Ordinary Shares	03/20/2026		F		401	D	$11.92	20,759	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)	03/20/2026		M			623	(2)	(2)	Ordinary Shares	623	(1)	628	D
Restricted Stock Units	(1)	03/20/2026		A		1,544		03/20/2026(3)	(3)	Ordinary Shares	1,544	(1)	1,544	D
Restricted Stock Units	(1)	03/20/2026		M			1,544	03/20/2026(4)	(4)	Ordinary Shares	1,544	(1)	0	D
Restricted Stock Units	(1)	03/20/2026		A		990		03/20/2026(5)	(5)	Ordinary Shares	990	(1)	990	D
Restricted Stock Units	(1)	03/20/2026		M			990	03/20/2026(6)	(6)	Ordinary Shares	990	(1)	0	D

Explanation of Responses:

1. Restricted Stock Units convert 1 for 1, subject to a nominal payment of $1.00 per Ordinary Share.

2. Relates to 25% vesting of the Restricted Stock Units granted on Mach 20, 2023, the final 25% will vest March 20, 2027.

3. Represents the grant of performance-based Restricted Stock Units (at 117% target) awarded on March 20, 2023. 100% of the performance-based Restricted Stock Units were granted and vested on March 20, 2026 upon the achievement of EPS growth goals for the performance period ended December 31, 2025.

4. Represents the 100% vesting of performance-based Restricted Stock Units (at 117% target) awarded on March 20, 2023. 100% of the performance-based Restricted Stock Units were granted and vested on March 20, 2026 upon the achievement of EPS growth goals for the performance period ended December 31, 2025

5. Represents the grant of performance-based Restricted Stock Units (at 50% target) awarded on March 20, 2023. 100% of the performance-based Restricted Stock Units were granted and vested on March 20, 2026 upon the achievement of relative total shareholder return (TSR) goals for the performance period ended December 31, 2025.

6. Represents the 100% vesting of performance-based Restricted Stock Units (at 50% target) awarded on March 20, 2023. 100% of the performance-based Restricted Stock Units were granted and vested on March 20, 2026 upon the achievement of relative total shareholder return (TSR) goals for the performance period ended December 31, 2025.

Remarks:

	/s/ Benjamin Coulson under Power of Attorney for Jeffrey Moorefield	03/21/2026
	** 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)