DISC MEDICINE INC (IRON) Institutional Ownership Changes & 13F Activity

DISC MEDICINE INC (IRON) institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC 13F filings (Q1 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions among tracked filers. Notable filers include Renaissance Technologies LLC.

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q1 2026Renaissance Technologies LLCSell-31,00031,820$2,034,571
Q4 2025Renaissance Technologies LLCBuy56,02062,820$4,988,536
Q3 2025Renaissance Technologies LLCSell-89,6206,800$449,344
Q2 2025Renaissance Technologies LLCSell-94,80096,420$5,106,403
Q1 2025Renaissance Technologies LLCBuy104,800191,220$9,492,161
Q4 2024Renaissance Technologies LLCBuy77,90086,420$5,479,028
Q1 2024Renaissance Technologies LLCSell-39,7608,520$530
Q4 2023Renaissance Technologies LLCBuy18,59048,280$2,789
Q3 2023Renaissance Technologies LLCSell-39,20029,690$1,395
Q2 2023Renaissance Technologies LLCBuy53,62068,890$3,059
Q1 2023Renaissance Technologies LLCBuy2,30015,270$324
Q4 2022Renaissance Technologies LLCBuy12,97012,970$258

Frequently asked questions about IRON activity

  • Which institutional owners are buying IRON?

    Institutional owners buying IRON include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in IRON activity?

    "Buy" means an investor increased their reported position in IRON compared to the prior reporting period. This reflects growing exposure to DISC MEDICINE INC (IRON) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in IRON increasing?

    Institutional interest in IRON can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.

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