UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934: For the Fiscal Year Ended December 31, 2023 Or o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 1-7107 LOUISIANA-PACIFIC CORPORATION (Exact name of registrant as specified in its charter) Delaware 93-0609074 (State of Incorporation) (I.R.S. Em ...