Company Update

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 ​ FORM 8-K ​ CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 ​ Date of Report (Date of Earliest Event Reported): May 4, 2026 ​ ​ UDR, Inc. (Exact name of registrant as specified in its charter) ​ ​ ​ ​ ​ ​ ​ Maryland ​ 1-10524 ​ 54-0857512 (State or other jurisdiction ​ (Commission ​ (I.R.S. Employer of incorporation) ​ File Number) ​ Identification No.) ​ ​ ​ ​ ​ 1745 Shea Center Drive, Suite 200 , Highlands Ranch , Colorado ​ ​ ​ 80129 (Address of principal executive offices) ​ ​ ​ (Zip Code) ​ Registrant’s telephone number, including area code: ( 720 )  283-6120 ​ Not Applicable Former name or former address, if changed since last report ​ Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ​ ☐   Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐   Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐   Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐   Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) ​ Securities registered pursuant to Section 12(b) of the Act: Title of each class Trading Symbol(s) Name of each exchange on which registered Common Stock , par value $0.01 UDR New York Stock Exchange ​ Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). ​ Emerging Growth Company          ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.    ☐ ​ ​ ​ ​ Item 8.01 Other Events. ​ On May 4, 2026, UDR, Inc. (the “Company”) announced that its Board of Directors has authorized the Company to repurchase up to 25 million shares of its common stock, effective immediately. The 25 million shares that the Company is authorized to repurchase under the stock repurchase program announced on May 4, 2026 is in addition to the remaining 4.6 million shares of common stock that the Company is authorized to repurchase under its existing stock repurchase program approved by the Company’s Board of Directors in January 2008. The Company’s existing stock repurchase program approved in January 2008 will not be modified or superseded by the Company’s stock repurchase program announced on May 4, 2026. ​ A copy of the press release relating to the Company’s stock repurchase program is attached as Exhibit 99.1 to this report and is incorporated herein by reference. ​ Item 9.01 Financial Statements and Exhibits. ​ (d) Exhibits. ​ ​ ​ ​  Ex. No.   ​ ​ ​  Description  99.1 ​   Press Release . 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. ​ ​ ​ ​ ​ ​ ​ ​ UDR, Inc. ​ ​ ​ ​  May 4, 2026 ​ By: ​  /s/ David D. Bragg ​ ​ ​ ​  David D. Bragg ​ ​ ​ ​  Senior Vice President and Chief Financial Officer ​ ​ ​ ​  (Principal Financial Officer) ​ ​ ​ ​