Sec Form 4 Filing - Webster Stephen @ LUXFER HOLDINGS PLC - 2020-05-28

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

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, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Webster Stephen 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) Corporate Controller (Last) (First) (Middle) LUXFER HOLDINGS PLC, LUMNS LANE 3. Date of Earliest Transaction (MM/DD/YY) 05/28/2020 (Street) MANCHESTER, X0M27 8LN 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 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 05/28/2020 M 2,450 A 8,896 ( 2 ) D Ordinary Shares 05/28/2020 M 232 A 9,128 D Ordinary Shares 05/28/2020 F 1,319 D $ 14.78 7,809 D Ordinary Shares 05/28/2020 M 900 A 8,709 D Ordinary Shares 05/28/2020 M 85 A 8,794 D Ordinary Shares 05/28/2020 F 485 D $ 14.78 8,309 D Ordinary Shares 05/28/2020 M 1,800 A 10,109 D Ordinary Shares 05/28/2020 M 95 A 10,204 D Ordinary Shares 05/28/2020 F 932 D $ 14.78 9,272 D Ordinary Shares 05/28/2020 M 2,000 A 11,272 D Ordinary Shares 05/28/2020 M 107 A 11,379 D Ordinary Shares 05/28/2020 F 1,036 D $ 14.78 10,343 D Ordinary Shares 05/28/2020 M 750 A 11,093 D Ordinary Shares 05/28/2020 M 18 A 11,111 D Ordinary Shares 05/28/2020 F 389 D $ 14.78 10,722 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 (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 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 (MM/DD/YY) 7. Title and Amount of Underlying Securities (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 of Derivative Security: 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 Stock Options (Right to Buy) ( 1 ) 05/28/2020 M 2,450 ( 4 ) 03/21/2022 Ordinary Shares 2,450 ( 1 ) 0 D Dividend Equivalent Rights ( 5 ) 05/28/2020 M 232 ( 5 ) ( 5 ) Ordinary Shares 232 ( 5 ) 0 D Stock Options (Right to Buy) ( 1 ) 05/28/2020 M 900 ( 4 ) 03/22/2022 Ordinary Shares 900 ( 1 ) 0 D Dividend Equivalent Rights ( 5 ) 05/28/2020 M 85 ( 5 ) ( 5 ) Ordinary Shares 85 ( 5 ) 0 D Stock Options (Right to Buy) ( 1 ) 05/28/2020 M 1,800 ( 6 ) 03/23/2023 Ordinary Shares 1,800 ( 1 ) 1,800 D Dividend Equivalent Rights ( 5 ) 05/28/2020 M 95 ( 5 ) ( 5 ) Ordinary Shares 95 ( 5 ) 117 D Stock Options (Right to Buy) ( 1 ) 05/28/2020 M 2,000 ( 7 ) 03/26/2023 Ordinary Shares 2,000 ( 1 ) 2,000 D Dividend Equivalent Rights ( 5 ) 05/28/2020 M 107 ( 5 ) ( 5 ) Ordinary Shares 107 ( 5 ) 130 D Stock Options (Right to Buy) ( 3 ) 05/28/2020 M 750 ( 8 ) 03/14/2025 Ordinary Shares 750 ( 3 ) 2,250 D Dividend Equivalent Rights ( 9 ) 05/28/2020 M 18 ( 9 ) ( 9 ) Ordinary Shares 18 ( 9 ) 85 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Webster Stephen LUXFER HOLDINGS PLC LUMNS LANE MANCHESTER, X0M27 8LN Corporate Controller Signatures /s/ Jamie M. Savage under Power of Attorney for Stephen Webster 05/29/2020 Signature of Reporting Person Date

Explanation of Responses:

( 1 )1 for 1 subject to a nominal payment of 50 pence per Ordinary Share. ( 2 )Includes 159 additional shares acquired from dividend reinvestment transactions and 100 additional shares pursuant to the company share investment plan. ( 3 )1 for 1, subject to a nominal payment of $1.00 per Ordinary Share ( 4 )The options are fully vested and exercised. ( 5 )Represents dividend equivalent rights accrued on employee stock options and become exercisable proportionately with the options to which they relate. Each dividend equivalent right is the economic equivalent of one Ordinary Share, subject to a nominal payment of 50 pence per Ordinary Share. ( 6 )The remaining options vest on March 23, 2021. ( 7 )The remaining options vest on March 26, 2021. ( 8 )The remaining options vests in three equal annual instalments beginning on March 14, 2021. ( 9 )Represents dividend equivalent rights accrued on employee stock options and become exercisable proportionately with the options to which they relate. Each dividend equivalent right is the economic equivalent of one Ordinary Share, subject to a nominal payment of $1.00 per Ordinary Share.

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).

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