$MRK · Merck & Co., Inc.

Merck & Co., Inc. filed a current report on Form 8-K dated October 13, 2026, reporting an event dated October 9, 2026. The filing announces that the company’s Board of Directors elected Paul J. Diaz as a director, effective November 1, 2026. The Board also appointed him to serve on both its Audit Committee and Research Committee.

The filing states that Mr. Diaz will receive compensation as a non-employee director under the company’s standard practices, as described in the director compensation section of Merck’s definitive proxy statement filed April 8, 2026. It also notes that there are no arrangements or understandings between Mr. Diaz and any other person regarding his election, and no related-party transactions requiring disclosure under Item 404(a) of Regulation S-K. The report includes a press release issued October 13, 2026 as Exhibit 99.1.