Disc Medicine, Inc.
IRON- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001816736
In the last 90 days, Disc Medicine, Inc. insiders filed 0 open-market purchases and 9 sales; 216 institutions reported holding it in 13F filings for Q2 2026, worth $3.13B in total; no superinvestor holds it.
13F holders, Q1 2026
Institutional positions in Disc Medicine, Inc. as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 203
- +9 vs. Q4 2025
- Shares held
- 41.9M
- +5.37M (+14.7%) vs. Q4 2025
- Total value
- $2.67B
- −$229.0M (−7.9%) vs. Q4 2025
- New holders
- 47
- 81 more added
- Sold out
- 38
- 44 more reduced
3 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting IRON on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 216 | $3.13B |
| Q1 2026 | 203 | $2.67B |
| Q4 2025 | 197 | $3.04B |
| Q3 2025 | 168 | $2.26B |
| Q2 2025 | 152 | $1.80B |
| Q1 2025 | 157 | $1.65B |
| Q4 2024 | 152 | $1.68B |
| Q3 2024 | 132 | $1.35B |
| Q2 2024 | 121 | $1.24B |
| Q1 2024 | 130 | $1.38B |
| Q4 2023 | 112 | $1.17B |
| Q3 2023 | 91 | $934.0M |
| Q2 2023 | 90 | $848.7M |
| Q1 2023 | 45 | $309.6M |
| Q4 2022 | 35 | $215.8M |
| Q3 2022 | 44 | $43.9M |
| Q2 2022 | 51 | $43.8M |
| Q1 2022 | 57 | $39.6M |
| Q4 2021 | 62 | $93.8M |
| Q3 2021 | 62 | $103.5M |
| Q2 2021 | 55 | $165.3M |
| Q1 2021 | 49 | $346.6M |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding Disc Medicine, Inc.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 2,273,831 | $145.4M | 0.00% | −1,149−0.1% | Reduced |
| Ra Capital Management, L.P. | 2,450,221 | $156.7M | 1.66% | +474,089+24.0% | Added |
| FMR LLC | 5,586,894 | $357.2M | 0.02% | +136,672+2.5% | Added |
| First Light Asset Management, LLC | 0 | $0 | 0.00% | −523,167−100.0% | Sold out |
| Perceptive Advisors LLC | 0 | $0 | 0.00% | −450,743−100.0% | Sold out |
| Great Point Partners LLC | 0 | $0 | 0.00% | −250,000−100.0% | Sold out |
| Balyasny Asset Management LLC | 0 | $0 | 0.00% | −221,761−100.0% | Sold out |
| TimesSquare Capital Management, LLC | 0 | $0 | 0.00% | −187,777−100.0% | Sold out |
| First Turn Management, LLC | 0 | $0 | 0.00% | −153,206−100.0% | Sold out |
| Patient Square Capital LP | 0 | $0 | 0.00% | −74,000−100.0% | Sold out |
| Verition Fund Management LLC | 0 | $0 | 0.00% | −63,535−100.0% | Sold out |
| ExodusPoint Capital Management, LP | 0 | $0 | 0.00% | −58,211−100.0% | Sold out |
| Nicholas Investment Partners, LP | 0 | $0 | 0.00% | −48,082−100.0% | Sold out |
| Exome Asset Management LLC | 0 | $0 | 0.00% | −46,743−100.0% | Sold out |
| American Century Companies Inc | 0 | $0 | 0.00% | −30,328−100.0% | Sold out |
| Eagle Health Investments LP | 0 | $0 | 0.00% | −27,100−100.0% | Sold out |
| Campbell & CO Investment Adviser LLC | 0 | $0 | 0.00% | −17,399−100.0% | Sold out |
| Prelude Capital Management, LLC | 0 | $0 | 0.00% | −13,985−100.0% | Sold out |
| Fred Alger Management, LLC | 0 | $0 | 0.00% | −12,267−100.0% | Sold out |
| Y-Intercept (Hong Kong) Ltd | 0 | $0 | 0.00% | −11,359−100.0% | Sold out |
| PFM Health Sciences, LP | 0 | $0 | 0.00% | −11,002−100.0% | Sold out |
| Legato Capital Management LLC | 0 | $0 | 0.00% | −8,248−100.0% | Sold out |
| Arrowstreet Capital, Limited Partnership | 0 | $0 | 0.00% | −7,767−100.0% | Sold out |
| Jain Global LLC | 0 | $0 | 0.00% | −7,319−100.0% | Sold out |
| FORA Capital, LLC | 0 | $0 | 0.00% | −6,735−100.0% | Sold out |
| VARCOV Co. | 0 | $0 | 0.00% | −5,327−100.0% | Sold out |
| Marshall Wace, LLP | 0 | $0 | 0.00% | −4,642−100.0% | Sold out |
| Abel Hall, LLC | 0 | $0 | 0.00% | −4,443−100.0% | Sold out |
| Susquehanna Portfolio Strategies, LLC | 0 | $0 | 0.00% | −3,733−100.0% | Sold out |
| Gsa Capital Partners LLP | 0 | $0 | 0.00% | −3,287−100.0% | Sold out |
| Allianz Asset Management GmbH | 0 | $0 | 0.00% | −3,000−100.0% | Sold out |
| Saxon Interests, Inc. | 0 | $0 | 0.00% | −2,576−100.0% | Sold out |
| Avanza Fonder AB | 0 | $0 | 0.00% | −1,903−100.0% | Sold out |
| Persistent Asset Partners Ltd | 0 | $0 | 0.00% | −1,780−100.0% | Sold out |
| Amalgamated Bank | 0 | $0 | 0.00% | −784−100.0% | Sold out |
| Cygnus Capital Advisors, LLC | 0 | $0 | 0.00% | −502−100.0% | Sold out |
| Quest Partners LLC | 0 | $0 | 0.00% | −366−100.0% | Sold out |
| Daiwa Securities Group Inc. | 0 | $0 | 0.00% | −113−100.0% | Sold out |
| SRS Capital Advisors, Inc. | 0 | $0 | 0.00% | −2−100.0% | Sold out |
| Basecamp Wealth Advisors LLC | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| Bessemer Group Inc | 0 | $0 | 0.00% | −2−100.0% | Sold out |
| Vanguard Group Inc | – | – | – | – | Not filed |
| Comerica Bank | – | – | – | – | Not filed |
| Global Retirement Partners, LLC | – | – | – | – | Not filed |