Millrose Properties, Inc.

Item 8.01 Other Events. Announcement of Notes Offering On September 22, 2026, Millrose issued a press release announcing that it plans to offer (the “Offering”) up to $1,000,000,000 in aggregate principal amount of senior notes in two separate tranches, one representing $500,000,000 in aggregate principal amount of senior notes due 2029 and the other representing $500,000,000 in aggregate principal amount of senior notes due 2031 (together, the “Notes”), subject to market conditions. The Offering will be exempt from the registration requirements of the Securities Act of 1933, as amended (the “Securities Act”). The Notes and related guarantees are being offered only to persons reasonably believed to be qualified institutional buyers pursuant to Rule 144A under the Securities Act, and outside the United States to certain non-U.S. persons in reliance on the exemption from registration set forth in Regulation S under the Securities Act. A copy of the press release is being filed as Exhibit 99.1 to this Current Report on Form 8-K (this “Report”) and is incorporated herein by reference. The Notes and the related guarantees have not been and will not be registered under the Securities Act or the securities laws of any state or other jurisdiction, and the Notes may not be offered or sold in the United States without registration or an applicable exemption from the registration requirements of the Securities Act and applicable state securities or blue sky laws and foreign securities laws. This Report shall not constitute an offer to sell, or the solicitation of an offer to buy, any securities, nor shall there be any sales of the Notes in any jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such jurisdiction. Forward-looking Statements Certain statements contained in this Report and oral statements made regarding the matters addressed in this Report constitute “forward-looking statements” within the meaning of Section 27A of the Securities Act and Section 21E of the Securities Exchange Act of 1934, as amended, including, without limitation, statements about the Offering, the expected use of proceeds therefrom and other future events. All forward-looking statements included in this Report are qualified in their entirety by, and should be read in the context of, the risk factors and other factors disclosed in the Company’s filings with the Securities and Exchange Commission, which can be obtained free of charge on the Securities and Exchange Commission’s web site at http://www.sec.gov. Except to the extent required by applicable law, Millrose undertakes no obligation to update or revise any information contained in this communication beyond the date hereof, whether as a result of new information, future events or otherwise.