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Table of Contents ☑ ㅁ UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON , D.C. 20549 FORM 10 - K ANNUAL REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended January 31 , 2021 TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from Commission file number : 1-4488 MESABI TRUST to New York ( Exact Name of Registrant as Specified in Its Charter ) ( State or other jurisdiction of incorporation or organization ) c / o Deutsche Bank Trust Company Americas Trust & Agency Services 60 Wall Street , 16th Floor New York , New York ( Address of Principal Executive Offices ) ( 904 ) 271-2520 13-6022277 ( I.R.S. Employer Identification No. ) ( Registrant's Telephone Number , Including Area Code ) Securities registered pursuant to Section 12 ( b ) of the Act : Title of each class Trading Symbol ( s ) MSB Units of Beneficial Interest in Mesabi Trust Securities registered pursuant to Section 12 ( g ) of the Act : None 10005 ( Zip Code ) Name of each exchange on which registered New York Stock Exchange Indicate by check mark if the registrant is a well - known seasoned issuer , as defined in Rule 405 of the Securities Act . Yes □ No ☑ Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15 ( d ) of the Act . Yes □ No Indicate by check mark whether the registrant ( 1 ) has filed all reports required to be filed by Section 13 or 15 ( d ) of the Securities Exchange Act of 1934 during the preceding 12 months ( or for such shorter period that the registrant was required to file such reports ) , and ( 2 ) has been subject to such filing requirements for the past 90 days . Yes > No □ Indicate by check mark whether the registrant has submitted electronically , every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S - T ( §232.405 of this chapter ) during the preceding 12 months ( or for such shorter period that the registrant was required to submit such files ) . Yes - No □ Indicate by check mark whether the registrant is a large accelerated filer , an accelerated filer , a non - accelerated filer , a smaller reporting company or an emerging growth company . See definitions of “ large accelerated filer , " " accelerated filer , ” “ smaller reporting company , " and " emerging growth company " in Rule 12b - 2 of the Exchange Act . Large accelerated filer Non - accelerated filer Accelerated filer □ Smaller reporting company 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 . □ Indicate by check mark whether the registrant has filed a report on and attestation to its management's assessment of the effectiveness of its internal control over financial reporting under Section 404 ( b ) of the Sarbanes - Oxley Act ( 15 U.S.C. 7262 ( b ) ) by the registered public accounting firm that prepared or issued its audit report . Indicate by check mark whether the registrant is a shell company ( as defined in Rule 12b - 2 of the Act ) . Yes □ No As of July 31 , 2020 , the aggregate market value of the Units of Beneficial Interest in the registrant held by non - affiliates of the registrant was $ 228,505,836 based on the closing sale price as reported on the New York Stock Exchange . As of April 26 , 2021 , there were 13,120,010 Units of Beneficial Interest in Mesabi Trust outstanding . DOCUMENTS INCORPORATED BY REFERENCE Document Parts Into Which Incorporated Annual Report of the Trustees for the Fiscal Year Ended January 31 , 2021 ( Annual Report ) Parts I , II , and IV