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, Q4 2022
Institutional positions in Disc Medicine, Inc. as of Dec 31, 2022. 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
- 35
- −8 vs. Q3 2022
- Shares held
- 11.4M
- +9.01M (+370.5%) vs. Q3 2022Converted for a 1-for-10 split
- Total value
- $215.8M
- +$175.9M (+441.2%) vs. Q3 2022
- New holders
- 8
- 10 more added
- Sold out
- 16
- 7 more reduced
1 institution that held it in Q3 2022 haven't filed for Q4 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2022: 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, Q4 2022
Shares, value and share of portfolio for each institution holding Disc Medicine, Inc.; share changes are against Q3 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Atlas Venture Life Science Advisors, LLC | 3,461,784 | $68.9M | 8.29% | +2,936,348+558.8% | AddedConverted for a 1-for-10 split |
| Novo Holdings A/S | 2,340,772 | $46.6M | 2.91% | +2,340,772 | New |
| OrbiMed Advisors LLC | 2,160,941 | $43.0M | 0.82% | +1,578,319+270.9% | AddedConverted for a 1-for-10 split |
| 5AM Venture Management, LLC | 588,442 | $11.7M | 3.15% | +535,992+1,021.9% | AddedConverted for a 1-for-10 split |
| BML Capital Management, LLC | 500,000 | $9.95M | 9.50% | +500,000 | New |
| Adage Capital Partners GP, L.L.C. | 350,062 | $6.96M | 0.02% | +105,314+43.0% | AddedConverted for a 1-for-10 split |
| Rock Springs Capital Management LP | 339,497 | $6.75M | 0.16% | +339,497 | New |
| Foresite Capital Management V, LLC | 243,513 | $4.84M | 3.76% | 00.0% | UnchangedConverted for a 1-for-10 split |
| FMR LLC | 193,238 | $3.84M | 0.00% | +153,780+389.7% | AddedConverted for a 1-for-10 split |
| Nantahala Capital Management, LLC | 162,762 | $3.06M | 0.28% | +136,995+531.7% | AddedConverted for a 1-for-10 split |
| Trustees of Columbia University in the City of New York | 110,488 | $2.20M | 4.53% | +110,488 | New |
| Assenagon Asset Management S.A. | 68,426 | $1.36M | 0.01% | +60,209+732.7% | AddedConverted for a 1-for-10 split |
| Vanguard Group Inc | 55,863 | $1.11M | 0.00% | 00.0% | UnchangedConverted for a 1-for-10 split |
| Citadel Advisors LLC | 55,678 | $1.11M | 0.00% | −2,313−4.0% | ReducedConverted for a 1-for-10 split |
| Janus Henderson Group PLC | 500,330 | $981.6K | 0.00% | +500,330 | New |
| ExodusPoint Capital Management, LP | 30,232 | $601.0K | 0.01% | +25,054+483.9% | AddedConverted for a 1-for-10 split |
| Geode Capital Management, LLC | 27,160 | $540.0K | 0.00% | 00.0% | UnchangedConverted for a 1-for-10 split |
| Harvard Management Co Inc | 25,000 | $497.3K | 0.06% | 00.0% | UnchangedConverted for a 1-for-10 split |
| BlackRock Inc. | 20,082 | $399.4K | 0.00% | 00.0% | UnchangedConverted for a 1-for-10 split |
| Millennium Management LLC | 14,761 | $294.0K | 0.00% | −19,492−56.9% | ReducedConverted for a 1-for-10 split |
| Stifel Financial Corp | 13,722 | $272.9K | 0.00% | 00.0% | UnchangedConverted for a 1-for-10 split |
| Renaissance Technologies LLC | 12,970 | $258.0K | 0.00% | −5,016−27.9% | ReducedConverted for a 1-for-10 split |
| State Street Corp | 10,189 | $202.7K | 0.00% | 00.0% | UnchangedConverted for a 1-for-10 split |
| Boxer Capital, LLC | 130,000 | $175.5K | 0.01% | 00.0% | UnchangedConverted for a 1-for-10 split |
| UBS Group AG | 7,115 | $141.5K | 0.00% | +925+14.9% | AddedConverted for a 1-for-10 split |
| Citigroup Inc | 5,087 | $101.2K | 0.00% | 00.0% | UnchangedConverted for a 1-for-10 split |
| US Bancorp | 1,176 | $23.4K | 0.00% | +1,176 | New |
| Morgan Stanley | 821 | $16.3K | 0.00% | −1,914−70.0% | ReducedConverted for a 1-for-10 split |
| Running Point Capital Advisors, LLC | 10,000 | $13.5K | 0.01% | +9,000+900.0% | AddedConverted for a 1-for-10 split |
| Barclays PLC | 200 | $3.98K | 0.00% | +200 | New |
| Ulland Investment Advisors, LLC | 34 | $1.00K | 0.00% | −1−2.3% | ReducedConverted for a 1-for-10 split |
| TCI Wealth Advisors, Inc. | 20 | $398 | 0.00% | 00.0% | UnchangedConverted for a 1-for-10 split |
| Bank of America Corp | 2 | $40 | 0.00% | −23−91.9% | ReducedConverted for a 1-for-10 split |
| Tower Research Capital LLC (TRC) | 13 | $0 | 0.00% | −38−74.4% | ReducedConverted for a 1-for-10 split |
| JPMorgan Chase & Co | 1 | $0 | 0.00% | +1 | New |
| Suvretta Capital Management, LLC | 0 | $0 | 0.00% | −237,227−100.0% | Sold outConverted for a 1-for-10 split |
| K2 Principal Fund, L.P. | 0 | $0 | 0.00% | −19,312−100.0% | Sold outConverted for a 1-for-10 split |
| Ergoteles LLC | 0 | $0 | 0.00% | −9,220−100.0% | Sold outConverted for a 1-for-10 split |
| Bridgeway Capital Management, LLC | 0 | $0 | 0.00% | −7,500−100.0% | Sold outConverted for a 1-for-10 split |
| MYDA Advisors LLC | 0 | $0 | 0.00% | −6,300−100.0% | Sold outConverted for a 1-for-10 split |
| Northern Trust Corp | 0 | $0 | 0.00% | −4,865−100.0% | Sold outConverted for a 1-for-10 split |
| Fiduciary Trust Co | 0 | $0 | 0.00% | −4,051−100.0% | Sold outConverted for a 1-for-10 split |
| Goldman Sachs Group Inc | 0 | $0 | 0.00% | −1,949−100.0% | Sold outConverted for a 1-for-10 split |
| Qube Research & Technologies Ltd | 0 | $0 | 0.00% | −1,648−100.0% | Sold outConverted for a 1-for-10 split |
| Wolverine Trading, LLC | 0 | $0 | 0.00% | −1,603−100.0% | Sold outConverted for a 1-for-10 split |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −1,251−100.0% | Sold outConverted for a 1-for-10 split |
| Bank of New York Mellon Corp | 0 | $0 | 0.00% | −1,101−100.0% | Sold outConverted for a 1-for-10 split |
| Group One Trading, L.P. | 0 | $0 | 0.00% | −646−100.0% | Sold outConverted for a 1-for-10 split |
| Wells Fargo & Company | 0 | $0 | 0.00% | −15−100.0% | Sold outConverted for a 1-for-10 split |
| Royal Bank of Canada | 0 | $0 | 0.00% | −13−100.0% | Sold outConverted for a 1-for-10 split |
| Ellevest, Inc. | 0 | $0 | 0.00% | −6−100.0% | Sold outConverted for a 1-for-10 split |
| Foresite Capital Opportunity Management V, LLC | – | – | – | – | Not filed |