REGN: Financial results

Item 2.02 Results of Operations and Financial Condition. On October 30, 2026, Regeneron Pharmaceuticals, Inc. issued a press release announcing its financial and operating results for the quarter ended September 30, 2026. A copy of the press release is being furnished to the Securities and Exchange Commission as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated by reference to this Item 2.02. The information included or incorporated in this Item 2.02, including Exhibit 99.1, shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, nor shall such information and exhibit be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, except as shall be expressly set forth by specific reference in such a filing. Item 9.01 Financial Statements and Exhibits. (d) Exhibits 99.1 Press Release, dated October 30, 2026, Reporting Third Quarter 2026 Financial and Operating Results. 104 Cover Page Interactive Data File - the cover page XBRL tags are embedded within the Inline XBRL document. SIGNATURES 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 hereunto duly authorized. Date: October 30, 2026 REGENERON PHARMACEUTICALS, INC. By: /s/ Joseph J. LaRosa Name: Joseph J. LaRosa Title: Executive Vice President, General Counsel and Secretary