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MESABI TRUST

For the period ended Jul 31, 2026. Filed Sep 11, 2026.

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A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.

Jul 31, 2026 · Filed Sep 11, 2026

MSB$17.13-0.7%Stored close · as of Nov 9, 2026

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Item 5. Other Information

Mine Safety and Health Administration Safety Data. Pursuant to §1503(a) of the Dodd-Frank Wall Street Reform and Consumer Protection Act, Cliffs started reporting information related to certain mine safety results at Northshore. This information is available in Part II, Item 4 of Cliffs’ Quarterly Report on Form 10-Q for the quarter ended June 30, 2026, filed with the SEC on July 23, 2026.

Rule 10b5-1 Plan and Non-Rule 10b5-1 Trading Arrangement Adoptions, Terminations, andModifications. During the three months ended July 31, 2026, none of the Trustees adopted or terminated a “Rule 10b5-1 trading arrangement” or “non-Rule 10b5-1 trading arrangement,” as each term is defined in Item 408 of SEC Regulation S-K.

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