WY: Financial results

Item 2.02. Results of Operations and Financial Condition Item 9.01. Financial Statements and Exhibits SIGNATURES EXHIBIT 99.1 EXHIBIT 99.2 Table of Contents Section 2 - Financial Information Item 2.02. Results of Operati ons and Financial Condition On October 29, 2026, Weyerhaeuser Company will post and make available on its website its financial results for the quarter ended September 30, 2026. Copies of the earnings release and the exhibit thereto are furnished as Exhibit 99.1 and Exhibit 99.2 to this report. In accordance with General Instruction B.2 of Form 8-K, the information in Item 2.02 of this Current Report on Form 8-K, including Exhibit 99.1 and Exhibit 99.2, shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liability of that section, and shall not be incorporated by reference into any registration statement or other document filed under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such filing. Section 9 - Financial Statements and Exhibits Item 9.01. Financial S tatements and Exhibits (d) Exhibits . The following items are furnished as exhibits to this report. Exhibit No. Description 99.1 Earnings release of Weyerhaeuser Company posted October 29, 2026 reporting results of operations for the quarter ended September 30, 2026. 99.2 Exhibit to earnings release of Weyerhaeuser Company posted October 29, 2026. 104 Cover Page Interactive Data File (embedded within the Inline XBRL document). Table of Contents SIGNAT URES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned h