[SCHEDULE 13G] Luxfer Holdings PLC SEC Filing

Rhea-AI Filing Summary

Artisan Partners and affiliated entities report beneficial ownership of 1,403,485 ordinary shares of Luxfer Holdings PLC, representing 5.2% of the outstanding class based on 27,236,677 shares. The holders disclose no sole voting or dispositive power and instead report shared voting and shared dispositive power for the entire stake.

The filing states these shares were acquired on behalf of discretionary clients of Artisan Partners Limited Partnership, that dividends and sale proceeds belong to those clients, and that no client is known to have an economic interest exceeding 5% of the class. The filing includes a joint filing agreement among the reporting entities.

Positive

• Material institutional stake disclosed: 1,403,485 shares representing 5.2% of the class
• Holdings reported for discretionary clients: ownership appears managed by an investment adviser, clarifying economic beneficiaries

Negative

• No sole voting or dispositive power reported, limiting direct control or unilateral influence
• Filing certifies shares were not acquired to influence control, indicating passive intent rather than active engagement

Insights

Financial Analyst

TL;DR: Artisan and affiliates hold a material 5.2% position in Luxfer via shared voting and dispositive power.

This Schedule 13G discloses a non-control institutional stake of 1,403,485 shares, reported as held for discretionary clients. From a portfolio perspective, a >5% ownership is material and will be visible to the market, but the absence of sole voting or dispositive power and the certification that the stake is held in the ordinary course suggest a passive, regulatory-disclosure-driven position rather than an activist intent.

Corporate Governance Expert

TL;DR: Shared voting power implies potential influence but no demonstrated effort to change control.

The disclosure shows shared voting and dispositive authority without sole control and expressly states the securities were not acquired to influence control. The filing therefore signals institutional interest and possible engagement through routine stewardship, but contains no explicit governance actions or demands. The joint filing agreement documents coordinated reporting, not necessarily coordinated activism.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

Luxfer Holdings PLC

(Name of Issuer)

Ordinary Shares

(Title of Class of Securities)

G5698W116

(CUSIP Number)

06/30/2025

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

SCHEDULE 13G

CUSIP No. G5698W116

1

Names of Reporting Persons

Artisan Partners Asset Management Inc.

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 1,403,485.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 1,403,485.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

1,403,485.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

5.2 %

12

Type of Reporting Person (See Instructions)

HC

Comment for Type of Reporting Person: (g) Artisan Partners Holdings LP is the sole limited partner of Artisan Partners Limited Partnership and the sole member of Artisan Investments GP LLC; Artisan Investments GP LLC is the general partner of Artisan Partners Limited Partnership; Artisan Partners Asset Management Inc. is the general partner of Artisan Partners Holdings LP.

SCHEDULE 13G

CUSIP No. G5698W116

1

Names of Reporting Persons

Artisan Partners Holdings LP

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 1,403,485.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 1,403,485.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

1,403,485.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

5.2 %

12

Type of Reporting Person (See Instructions)

HC

Comment for Type of Reporting Person: (g) Artisan Partners Holdings LP is the sole limited partner of Artisan Partners Limited Partnership and the sole member of Artisan Investments GP LLC; Artisan Investments GP LLC is the general partner of Artisan Partners Limited Partnership; Artisan Partners Asset Management Inc. is the general partner of Artisan Partners Holdings LP.

SCHEDULE 13G

CUSIP No. G5698W116

1

Names of Reporting Persons

Artisan Investments GP LLC

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 1,403,485.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 1,403,485.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

1,403,485.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

5.2 %

12

Type of Reporting Person (See Instructions)

HC

Comment for Type of Reporting Person: (g) Artisan Partners Holdings LP is the sole limited partner of Artisan Partners Limited Partnership and the sole member of Artisan Investments GP LLC; Artisan Investments GP LLC is the general partner of Artisan Partners Limited Partnership; Artisan Partners Asset Management Inc. is the general partner of Artisan Partners Holdings LP.

SCHEDULE 13G

CUSIP No. G5698W116

1

Names of Reporting Persons

Artisan Partners Limited Partnership

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 1,403,485.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 1,403,485.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

1,403,485.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

5.2 %

12

Type of Reporting Person (See Instructions)

IA

Comment for Type of Reporting Person: (e) Artisan Partners Limited Partnership is an investment adviser registered under section 203 of the Investment Advisers Act of 1940. (g) Artisan Partners Holdings LP is the sole limited partner of Artisan Partners Limited Partnership and the sole member of Artisan Investments GP LLC; Artisan Investments GP LLC is the general partner of Artisan Partners Limited Partnership; Artisan Partners Asset Management Inc. is the general partner of Artisan Partners Holdings LP.

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Luxfer Holdings PLC
(b)	Address of issuer's principal executive offices: 8989 North Port Washington Road, Suite 211, Milwaukee, WI, 53217
Item 2.
(a)	Name of person filing: Artisan Partners Asset Management Inc. ("APAM") Artisan Partners Holdings LP ("Artisan Holdings") Artisan Investments GP LLC ("Artisan Investments") Artisan Partners Limited Partnership ("APLP")
(b)	Address or principal business office or, if none, residence: APAM, Artisan Holdings, Artisan Investments, and APLP are all located at: 875 East Wisconsin Avenue, Suite 800 Milwaukee, WI 53202
(c)	Citizenship: APAM is a Delaware corporation; Artisan Holdings is a Delaware limited partnership; Artisan Investments is a Delaware limited liability company; APLP is a Delaware limited partnership
(d)	Title of class of securities: Ordinary Shares
(e)	CUSIP No.: G5698W116
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: 1,403,485
(b)	Percent of class: 5.2% (based on 27,236,677 shares outstanding as of 04/11/2025)
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: None
	(ii) Shared power to vote or to direct the vote: 1,403,485
	(iii) Sole power to dispose or to direct the disposition of: None
	(iv) Shared power to dispose or to direct the disposition of: 1,403,485
Item 5.	Ownership of 5 Percent or Less of a Class.
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	If any other person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, such securities, a statement to that effect should be included in response to this item and, if such interest relates to more than 5 percent of the class, such person should be identified. A listing of the shareholders of an investment company registered under the Investment Company Act of 1940 or the beneficiaries of employee benefit plan, pension fund or endowment fund is not required. The shares reported herein have been acquired on behalf of discretionary clients of APLP. Persons other than APLP are entitled to receive all dividends from, and proceeds from the sale of, those shares. None of those persons, to the knowledge of APAM, Artisan Holdings, Artisan Investments, or APLP has an economic interest in more than 5% of the class.
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Artisan Partners Asset Management Inc.

Signature:	/s/ Gregory K. Ramirez
Name/Title:	Gregory K. Ramirez, Executive Vice President of Artisan Partners Asset Management Inc.
Date:	08/12/2025

Artisan Partners Holdings LP

Signature:	/s/ Gregory K. Ramirez
Name/Title:	Gregory K. Ramirez, Executive Vice President of Artisan Partners Asset Management Inc., as the general partner of Artisan Partners Holdings LP
Date:	08/12/2025

Artisan Investments GP LLC

Signature:	/s/ Gregory K. Ramirez
Name/Title:	Gregory K. Ramirez, Vice President of Artisan Investments GP LLC
Date:	08/12/2025

Artisan Partners Limited Partnership

Signature:	/s/ Gregory K. Ramirez
Name/Title:	Gregory K. Ramirez, Vice President of Artisan Investments GP LLC, as the general partner of Artisan Partners Limited Partnership
Date:	08/12/2025

Comments accompanying signature: Exhibit Index Exhibit 1 - Joint Filing Agreement dated 08/12/2025 by and among Artisan Partners Asset Management Inc., Artisan Partners Holdings LP, Artisan Investments GP LLC, and Artisan Partners Limited Partnership.

FAQ

How many Luxfer (LXFR) shares does Artisan Partners report owning?

They report beneficial ownership of 1,403,485 shares, equal to 5.2% of the class.

Does Artisan Partners have sole voting or dispositive power over these LXFR shares?

No. The filing states no sole voting or dispositive power and reports shared voting and shared dispositive power of 1,403,485 shares.

Are the Luxfer shares held on behalf of clients?

Yes. The shares were acquired on behalf of discretionary clients of Artisan Partners Limited Partnership; dividends and sale proceeds belong to those clients.

What share count did the filing use to calculate the 5.2% ownership?

The percentage is based on 27,236,677 shares outstanding, as stated in the filing.

Does the Schedule 13G indicate activist intent by Artisan Partners for LXFR?

No. The filing includes a certification that the securities were acquired and are held in the ordinary course of business and not for the purpose of changing or influencing control.