Disc Medicine, Inc. (IRON) Institutional Ownership

Ownership Summary

Disc Medicine, Inc. (NASDAQ:IRON) currently has 5 active institutional owners and shareholders as of today (December 2025), that have filed 13F forms with the Securities Exchange Commission (SEC).

• These investors collectively held 1.1% of the company's total shares outstanding in December 2025, down from 101.1% in September 2025.
• Quarterly data indicates a 1918.21% shift in institutional share volume, and the annual owner count reflects a decrease of 96.69%.
• Among the 5 institutional holders of Disc Medicine, 3 added to their stakes while 0 trimmed their positions and 2 held steady.
• This class of investors increased its holdings in Disc Medicine to 379.28K shares for the 13F-cycle ending December 2025, up by 360.49K shares quarter on quarter, and down 26.09Mn shares year over year.
• The top institutional stake in Disc Medicine as of December 31, 2025 belongs to Assenagon Asset Management S.A., which owns 357.84K shares, or 1.06% of the company.
• Among the most significant buyers of Disc Medicine during December 2025 were Assenagon Asset Management S.A. (347.40K), SG Americas Securities, LLC (13.06K), GAMMA Investing LLC (28).
• The top 5 institutional holders of Disc Medicine for the quarter ending December 2025 included Assenagon Asset Management S.A. (357.84K), SG Americas Securities, LLC (21.12K), GAMMA Investing LLC (304), Versant Capital Management, Inc (19), True Wealth Design, LLC (1).