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): October 16, 2025 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporation ) File Number) Identification No.) The Bank of New York Mellon Trust Company, N.A., Trustee Global Corporate ...