Horizon Kinetics Asset Management Llc - Aug 19, 2025 SCHEDULE 13G/A Report for MESABI TRUST Units of Beneficial Interest (MSB)

Filing Manager: HORIZON KINETICS ASSET MANAGEMENT LLC
Reporting Manager: HORIZON KINETICS ASSET MANAGEMENT LLC
Security: MESABI TRUST Units of Beneficial Interest
Symbol: MSB
Shares outstanding: 13.1M shares
Disclosed Ownership: 3M shares
Ownership: 22.9%
Form type: SCHEDULE 13G/A
Date filed: 10/29/2025, 01:40 PM
Date of event: Aug 19, 2025
Previous filing: Feb 13, 2025
SEC: View on sec.gov

Reporting Managers (1)

Name	Ownership	Shares Owned	sole voting power	shared voting power	Signature	Title	CIK
HORIZON KINETICS ASSET MANAGEMENT LLC	22.9%	3M	3M	0	/s/Jay Kesslen	General Counsel