DOSSIER · 13F Holders · Q1 2026High-convictionMulti-bagger
MSB
MESABI TR
78 institutions still hold MESABI TR as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.
CUSIP 590672101·78 13F holders·last filed Mar 31, 2026
AI Holders Summary · Q1 2026
78 institutions reported MSB in Q1 2026. HORIZON KINETICS ASSET MANAGEMENT LLC leads at 48.4% of the visible book. -120 net institutions QoQ — distribution reading.
Top holders
Sorted by position value. Source: SEC EDGAR 13F-HR filings.
Page 1 of 4
58 more holders available. Log in →