Sec Form 4 Filing - GOLSEN BARRY H @ LSB INDUSTRIES, INC. - 2026-01-08

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 GOLSEN BARRY H 2. Issuer Name and Ticker or Trading Symbol LSB INDUSTRIES, INC. [ LXU] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) P O BOX 705 3. Date of Earliest Transaction (MM/DD/YY) 01/08/2026 (Street) OKLAHOMA CITY, OK73101 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 Common Stock 01/08/2026 S 12,486 D $ 9.09 ( 1 ) 115,468 ( 2 ) I By Irrevocable Family Trusts ( 2 ) Common Stock 01/08/2026 S 18,695 D $ 9.06 ( 3 ) 96,773 ( 2 ) I By Irrevocable Family Trusts ( 2 ) Common Stock 01/08/2026 S 87,772 D $ 9.23 ( 4 ) 189,355 ( 5 ) I By BGG Family LLC ( 5 ) Common Stock 01/09/2026 S 56,744 D $ 9.1 ( 6 ) 132,611 ( 5 ) I By BGG Family LLC ( 5 ) Common Stock 44,029 ( 7 ) I By Revocable Trust ( 7 ) Common Stock 693 ( 8 ) I By Spouse ( 8 ) Common Stock 3,568 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

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other GOLSEN BARRY H P O BOX 705 OKLAHOMA CITY, OK73101 X Signatures /s/ Barry H. Golsen 01/12/2026 Signature of Reporting Person Date

Explanation of Responses:

( 1 )The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $9.00 to $9.24, inclusive. The reporting person undertakes to provide to LSB Industries, Inc. (the "Issuer"), any security holder of the Issuer, or the staff of Securities and Exchange Commission (the "SEC"), upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. The sales of shares of common stock reported on this Form 4 were effected pursuant to 10b5-1 trading plans adopted by the Irrevocable Family Trusts on September 4, 2025. ( 2 )These shares are held by separate irrevocable trusts established for the benefit of the reporting person and the reporting person's children and grandchildren (collectively, the "Irrevocable Family Trusts"), of which the reporting person is the trustee. The amount shown is the aggregate number of shares held in the Irrevocable Family Trusts. No single Irrevocable Family Trust has more than one beneficiary. Because the reporting person is trustee of the Irrevocable Family Trusts, of which the beneficiaries are either the reporting person or his children or grandchildren, the reporting person is deemed to have a pecuniary interest in the Issuer's common stock held by the Irrevocable Family Trusts, pursuant to Rule 16a-8(b)(2)(ii). ( 3 )The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $9.00 to $9.15, inclusive. The reporting person undertakes to provide to Issuer, any security holder of the Issuer, or the staff of SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. The sales of shares of common stock reported on this Form 4 were effected pursuant to 10b5-1 trading plans adopted by the Irrevocable Family Trusts on September 4, 2025. ( 4 )The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $9.00 to $9.33, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. The sales of shares of common stock reported on this Form 4 were effected pursuant to 10b5-1 trading plans adopted by BGG on September 4, 2025. ( 5 )These shares are owned of record by BGG Family LLC ("BGG"). Each of the reporting person and his spouse is a manager of BGG and has a 50% ownership interest in BGG. The amount reported includes 29,000 shares previously reported as beneficially owned by the Irrevocable Family Trusts. ( 6 )The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $9.01 to $9.28, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. The sales of shares of common stock reported on this Form 4 were effected pursuant to 10b5-1 trading plans adopted by BGG on September 4, 2025. ( 7 )These shares are owned of record by the reporting person's revocable trust, of which the reporting person is the settlor and trustee and holds a pecuniary interest in the trust's holdings and transactions. ( 8 )These shares of common stock are owned of record by the reporting person's spouse. The reporting person disclaims beneficial ownership of the shares owned by his spouse.

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).

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