Amendment to Schedule 13D Filing for LSB Industries, Inc.

This filing is an amendment to a previous Schedule 13D filing concerning LSB Industries, Inc. The amendment details changes in beneficial ownership, primarily involving Robert E. Robotti and associated entities. As of December 19, 2025, the aggregate beneficial ownership reported is 3,528,347 shares, representing 4.9% of the outstanding Common Stock. The filing outlines the various entities and individuals considered "Reporting Persons," including Robert E. Robotti, Robotti & Company, Incorporated, Robotti & Company Advisors, LLC, Robotti Securities, LLC, Suzanne Robotti, Ravenswood Management Company, LLC, The Ravenswood Investment Company L.P., and Ravenswood Investments III, L.P. The purpose of the acquisition is stated as investment, with the reservation of the right to change plans. The filing also includes a table detailing transactions in the Issuer's Common Stock during the 60 days prior to the filing date, primarily consisting of sales by various entities and clients. A Joint Filing Agreement is also referenced and included as an exhibit, confirming the agreement among the Reporting Persons to jointly file the statement. Information regarding directors and executive officers of the involved entities is provided in Schedule A.