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): December 10, 2025     U-Haul Holding Company (Exact name of Registrant as Specified in Its Charter)     Nevada 001-11255 88-0106815 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)           5555 Kietzke Lane Suite 100   Reno , Nevada   89511 (Address of Principal Executive Offices)   (Zip Code)   Registrant’s Telephone Number, Including Area Code: 775 688-6300     (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, $0.25 par value   UHAL   New York Stock Exchange Series N Non-Voting Common Stock, $0.001 par value   UHAL.B   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 December 10, 2025, U-Haul Holding Company, a Nevada corporation (the “Company”), filed a prospectus supplement to the Company’s effective registration statement on Form S-3 (File No. 333-292045) (the “Registration Statement”) in respect of $13,673,700 of Fixed Rate Secured Notes Series UIC-14N, 15N, 16N, 18N, 20N, 21N, 22N, 23N, 24N, 25N, 26N, 31N, 34N, 35N, 36N, 37N, 38N, 39N, 40N, and 41N (collectively, the “Notes”). A copy of the opinion regarding the legality of the Notes is attached hereto as Exhibit 5.1 and incorporated herein by reference.   Item 9.01 Financial Statements and Exhibits. d) Exhibits. Exhibit No. Description 5.1 Opinion of DLA Piper LLP (US) 23.1 Consent of DLA Piper LLP (US) (included in Exhibit 5.1) 104 Cover Page Interactive Data File (embedded within the Inline XBRL documents)                 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.       U-Haul Holding Company         Date: December 10, 2025 By: Jason A. Berg       Jason A. Berg Chief Financial Officer