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   October 12, 2021   Date of Report (Date of earliest event reported)   AMERCO (Exact name of registrant as specified in its charter)   Nevada                                                    001-11255                                          88-0106815 (State or other jurisdiction of incorporation) (Commission File Number)   (I.R.S. Employer Identification No.)   5555 Kietzke Lane , Ste. 100 Reno , NV 89511 (Address of Principal Executive Offices)   775 668-6300 (Registrant’s telephone number, including area code)     Securities registered pursuant to Section 12(b) of the Act: Title of each class Trading Symbol Name of each exchange on which registered Common Stock , $0.25 par value UHAL NASDAQ Global Select Market   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))     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   8.01Other Events   Pursuant to the Registration Statement and a prospectus supplement filed on January 12, 2021, the Company offered an aggregate principal amount of   up to $6,945,000   of its Fixed Rate Secured Notes Series UIC-20J, 21J, 22J and 23J (the “Series UIC 20J-23J Offering”).     In connection with the Series UIC 20J-23J Offering, the Company, as Issuer, and U.S. Bank National Association, as Trustee, entered into the Fortieth Supplemental Indenture (the “Original Fortieth Supplement”).     Effective as of   October 12, 2021, the Company has amended and restated the Original Fortieth Supplement to remove therefrom Series 21J, 22J and 23J, and to correspondingly reduce the potential offering amount thereunder to $2,986,000 and to remove specified potential collateral grantable thereunder.     Item 9.01.Financial Statements and Exhibits.   (d)Exhibits.     Exhibit No. Description 4.1 Series UIC-20J Amended and Restated Fortieth Supplemental Indenture and Pledge and Security Agreement dated October 12, 2021, by and between AMERCO and U.S. Bank National Association, as trustee.       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.   AMERCO (Registrant)   /s/ Jason A. Berg   Jason A. Berg Chief Financial Officer   Date: October 12, 2021