Lisa G. Trimberger - 11 Jun 2026 Form 4 Insider Report for LUXFER HOLDINGS PLC (LXFR)

Reporting relationship: Director
Issuer ticker: LXFR
Reported as of: 11 Jun 2026
Net transaction value: -$60,350
SEC form: 4
Accepted by SEC: 15 Jun 2026, 07:26:52 UTC
Prior SEC filing: 02 Jun 2026
Source filing: View source filing
Reporting owner signature: /s/ Benjamin M. Coulson under Power of Attorney for Lisa G Trimberger

Key filing fact

Lisa G. Trimberger filed Form 4 for LUXFER HOLDINGS PLC (LXFR) on 15 Jun 2026.

Key facts

This page summarizes Lisa G. Trimberger's Form 4 filing for LUXFER HOLDINGS PLC (LXFR).
4 reported transactions and 2 derivative rows are listed below.
Accepted by SEC: 15 Jun 2026, 07:26.

Change

Previous filing in this sequence was filed on 02 Jun 2026.
Current net transaction value: -$60,350.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001718603 Primary reporting owner

Trimberger Lisa G

Relationship: Director
Address: LUMNS LANE, MANCHESTER, UNITED KINGDOM
Signature: /s/ Benjamin M. Coulson under Power of Attorney for Lisa G Trimberger
Signature date: 15 Jun 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

LXFR transaction

Ordinary Shares

Options Exercise

Transaction value
Shares: +8,953
Change %: +56%
Price
Shares after: 24,811
Date: 11 Jun 2026
Ownership: By Lisa G. Trimberger Trust
Footnotes: F1, F2

LXFR transaction

Ordinary Shares

Sale

Transaction value: $60,350
Shares: -4,010
Change %: -16%
Price: $15.05
Shares after: 20,801
Date: 11 Jun 2026
Ownership: By Lisa G. Trimberger Trust
Footnotes: F2

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

LXFR transaction Derivative

Restricted Stock Units

Options Exercise

Transaction value
Shares: -8,953
Change %: -100%
Price
Shares after: 0
Date: 11 Jun 2026
Ownership: See Footnote
Underlying class: Ordinary Shares
Underlying amount: 8,953
Exercise price
Footnotes: F1, F2, F3

LXFR transaction Derivative

Restricted Stock Units

Award

Transaction value
Shares: +6,681
Change %
Price
Shares after: 6,681
Date: 11 Jun 2026
Ownership: See Footnote
Underlying class: Ordinary Shares
Underlying amount: 6,681
Exercise price
Footnotes: F1, F2, F4

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 4 footnotes

Footnote F1

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

Footnote F2

Owned by Lisa G. Trimberger Trust, of which the Reporting Person is the trustee and the Reporting Person's spouse is the sole beneficiary.

Footnote F3

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.

Footnote F4

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.