Fortuna Mining Corp. (FSM) Institutional Ownership

Ownership Summary

A total of 4 institutions have reported a stake in Fortuna Mining Corp. (NYSE:FSM) as of December 2025, according to recent 13F filings with the SEC.

• The percentage of Fortuna Mining owned by institutions changed from 62.2% in September 2025 to 0.0% in December 2025, marking a slight down trend.
• Institutional share ownership changed by 1878.49% QoQ, while the number of institutional owners saw a decrease of 97.60% YoY.
• During the quarter, 1 institutions bought more Fortuna Mining shares, 0 sold shares, and 3 of the 4 total investors held their position steady.
• The aggregate institutional position in Fortuna Mining now stands at 62.92K shares as of December 2025, after investors increased their holdings (up by 59.74K shares quarter on quarter which is down 154.59Mn shares year over year).
• With 59.74K shares, SG Americas Securities, LLC commands the largest institutional position in Fortuna Mining as of December 31, 2025, equating to 0.02% of the company.
• Among the most significant buyers of Fortuna Mining during December 2025 were SG Americas Securities, LLC (59.74K).
• The top 4 institutional holders of Fortuna Mining for the quarter ending December 2025 included SG Americas Securities, LLC (59.74K), Aventura Private Wealth, LLC (1.50K), Pacifica Partners Inc. (880), DAGCO, INC. (800).