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, Q3 2025
Institutional positions in Disc Medicine, Inc. as of Sep 30, 2025. 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
- 168
- +16 vs. Q2 2025
- Shares held
- 34.2M
- +150.8K (+0.4%) vs. Q2 2025
- Total value
- $2.26B
- +$457.0M (+25.3%) vs. Q2 2025
- New holders
- 25
- 62 more added
- Sold out
- 9
- 45 more reduced
Compare with Q2 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, Q3 2025
Shares, value and share of portfolio for each institution holding Disc Medicine, Inc.; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| FMR LLC | 4,935,159 | $326.1M | 0.02% | +1,689,449+52.1% | Added |
| Atlas Venture Life Science Advisors, LLC | 2,142,617 | $141.6M | 18.81% | −241,839−10.1% | Reduced |
| BlackRock, Inc. | 2,019,283 | $133.4M | 0.00% | −25,544−1.2% | Reduced |
| Ra Capital Management, L.P. | 1,577,106 | $104.2M | 1.28% | 00.0% | Unchanged |
| Vanguard Group Inc | 1,448,059 | $95.7M | 0.00% | +51,323+3.7% | Added |
| Frazier Life Sciences Management, L.P. | 1,438,534 | $95.1M | 2.85% | −216,300−13.1% | Reduced |
| OrbiMed Advisors LLC | 1,415,020 | $93.5M | 2.24% | 00.0% | Unchanged |
| Wellington Management Group LLP | 1,410,077 | $93.2M | 0.02% | −22,013−1.5% | Reduced |
| Price T Rowe Associates Inc | 1,326,429 | $87.7M | 0.01% | −189,196−12.5% | Reduced |
| State Street Corp | 1,045,597 | $69.1M | 0.00% | +115,829+12.5% | Added |
| Deerfield Management Company, L.P. (Series C) | 919,403 | $60.8M | 0.93% | 00.0% | Unchanged |
| Siren, L.L.C. | 913,401 | $60.4M | 2.36% | −186,000−16.9% | Reduced |
| Woodline Partners LP | 866,955 | $57.3M | 0.27% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 752,879 | $49.8M | 0.00% | −90,737−10.8% | Reduced |
| Geode Capital Management, LLC | 628,151 | $41.5M | 0.00% | +29,562+4.9% | Added |
| Goldman Sachs Group Inc | 529,081 | $35.0M | 0.01% | +303,225+134.3% | Added |
| Vestal Point Capital, LP | 500,000 | $33.0M | 1.50% | +360,000+257.1% | Added |
| TCG Crossover Management, LLC | 465,257 | $30.7M | 1.51% | 00.0% | Unchanged |
| Logos Global Management LP | 450,000 | $29.7M | 2.94% | −250,000−35.7% | Reduced |
| Adage Capital Partners GP, L.L.C. | 450,000 | $29.7M | 0.05% | 00.0% | Unchanged |
| Armistice Capital, LLC | 436,000 | $28.8M | 0.90% | 00.0% | Unchanged |
| Checkpoint Capital L.P. | 430,000 | $28.4M | 9.52% | +165,000+62.3% | Added |
| First Turn Management, LLC | 397,693 | $26.3M | 3.95% | +98,229+32.8% | Added |
| Janus Henderson Group PLC | 361,704 | $23.9M | 0.01% | −1,192,257−76.7% | Reduced |
| Saturn V Capital Management LLC | 340,897 | $22.5M | 4.94% | −55,218−13.9% | Reduced |
| Balyasny Asset Management LLC | 338,101 | $22.3M | 0.05% | +338,101 | New |
| Baker Bros. Advisors LP | 337,050 | $22.3M | 0.16% | 00.0% | Unchanged |
| Eventide Asset Management, LLC | 308,043 | $20.4M | 0.33% | +130.0% | Added |
| Foresite Capital Management V, LLC | 299,069 | $19.8M | 18.17% | 00.0% | Unchanged |
| Nantahala Capital Management, LLC | 287,800 | $19.0M | 1.17% | 00.0% | Unchanged |
| Sio Capital Management, LLC | 284,787 | $18.8M | 4.76% | 00.0% | Unchanged |
| Paradigm Biocapital Advisors LP | 247,716 | $16.4M | 0.48% | −963,255−79.5% | Reduced |
| First Light Asset Management, LLC | 231,186 | $15.3M | 1.44% | +231,186 | New |
| Dimensional Fund Advisors LP | 230,423 | $15.2M | 0.00% | +37,567+19.5% | Added |
| Charles Schwab Investment Management Inc | 226,655 | $15.0M | 0.00% | +22,414+11.0% | Added |
| Palo Alto Investors LP | 224,300 | $14.8M | 2.74% | +78,609+54.0% | Added |
| Northern Trust Corp | 219,489 | $14.5M | 0.00% | +394+0.2% | Added |
| Catalio Capital Management, LP | 216,527 | $14.3M | 2.65% | +185,866+606.2% | Added |
| Opaleye Management Inc. | 193,773 | $12.8M | 1.81% | +7,355+3.9% | Added |
| TimesSquare Capital Management, LLC | 182,170 | $12.0M | 0.17% | +182,170 | New |
| Ensign Peak Advisors, Inc | 177,050 | $11.7M | 0.02% | +35,505+25.1% | Added |
| UBS Group AG | 171,623 | $11.3M | 0.00% | +26,074+17.9% | Added |
| Bank of America Corp | 161,184 | $10.7M | 0.00% | −7,638−4.5% | Reduced |
| Millennium Management LLC | 161,000 | $10.6M | 0.01% | +139,407+645.6% | Added |
| Victory Capital Management Inc | 149,864 | $9.90M | 0.01% | −47,960−24.2% | Reduced |
| Raymond James Financial Inc | 141,479 | $9.35M | 0.00% | +54,992+63.6% | Added |
| Barclays PLC | 107,203 | $7.08M | 0.00% | +20,645+23.9% | Added |
| Blue Owl Capital Holdings LP | 102,260 | $6.76M | 2.10% | −20,000−16.4% | Reduced |
| Hudson Bay Capital Management LP | 102,185 | $6.75M | 0.04% | +102,185 | New |
| UBS Asset Management Americas Inc | 91,380 | $6.04M | 0.00% | −30,204−24.8% | Reduced |
| Zimmer Partners, LP | 90,163 | $5.96M | 0.15% | 00.0% | Unchanged |
| Nicholas Investment Partners, LP | 88,003 | $5.82M | 0.44% | +33,558+61.6% | Added |
| Ameriprise Financial Inc | 74,350 | $4.91M | 0.00% | −47,170−38.8% | Reduced |
| Patient Square Capital LP | 74,000 | $4.89M | 1.31% | 00.0% | Unchanged |
| Schroder Investment Management Group | 67,196 | $4.37M | 0.00% | −15,255−18.5% | Reduced |
| iA Global Asset Management Inc. | 65,512 | $4.33M | 0.06% | +65,190+20,245.3% | Added |
| Bank of New York Mellon Corp | 64,800 | $4.28M | 0.00% | −6,702−9.4% | Reduced |
| Exome Asset Management LLC | 61,356 | $4.05M | 2.68% | 00.0% | Unchanged |
| TD Asset Management Inc | 59,248 | $3.92M | 0.00% | +6,200+11.7% | Added |
| Morgan Stanley | 56,075 | $3.71M | 0.00% | −54,604−49.3% | Reduced |
| Citadel Advisors LLC | 50,394 | $3.33M | 0.00% | +50,394 | New |
| HealthInvest Partners AB | 45,690 | $3.21M | 1.19% | +21,038+85.3% | Added |
| Nuveen, LLC | 47,694 | $3.15M | 0.00% | −2,576−5.1% | Reduced |
| Manufacturers Life Insurance Company, The | 47,577 | $3.14M | 0.00% | −4,259−8.2% | Reduced |
| Swiss National Bank | 43,600 | $2.88M | 0.00% | +700+1.6% | Added |
| Y-Intercept (Hong Kong) Ltd | 43,287 | $2.86M | 0.07% | +33,905+361.4% | Added |
| BNP Paribas Arbitrage, SA | 37,610 | $2.49M | 0.00% | +32,907+699.7% | Added |
| Rafferty Asset Management, LLC | 37,302 | $2.46M | 0.01% | +5,813+18.5% | Added |
| Rhumbline Advisers | 34,490 | $2.28M | 0.00% | −1,265−3.5% | Reduced |
| Susquehanna International Group, LLP | 32,617 | $2.16M | 0.00% | −43,380−57.1% | Reduced |
| PFM Health Sciences, LP | 32,539 | $2.15M | 0.18% | +1,740+5.6% | Added |
| Standard Life Aberdeen plc | 32,061 | $2.12M | 0.00% | 00.0% | Unchanged |
| American Century Companies Inc | 27,938 | $1.85M | 0.00% | +27,938 | New |
| Wells Fargo & Company | 27,055 | $1.79M | 0.00% | +4,594+20.5% | Added |
| Legal & General Group Plc | 25,147 | $1.66M | 0.00% | +1,050+4.4% | Added |
| The PNC Financial Services Group, Inc. | 25,146 | $1.66M | 0.00% | +60.0% | Added |
| Alliancebernstein L.P. | 24,540 | $1.62M | 0.00% | +400+1.7% | Added |
| California State Teachers Retirement System | 22,093 | $1.46M | 0.00% | +1,843+9.1% | Added |
| New York State Common Retirement Fund | 21,490 | $1.42M | 0.00% | +4,638+27.5% | Added |
| Invesco Ltd. | 21,443 | $1.42M | 0.00% | +4,626+27.5% | Added |
| Jane Street Group, LLC | 21,274 | $1.41M | 0.00% | +21,274 | New |
| Deutsche Bank AG | 18,886 | $1.25M | 0.00% | +2,169+13.0% | Added |
| Prelude Capital Management, LLC | 18,156 | $1.20M | 0.09% | 00.0% | Unchanged |
| Bank of Montreal | 17,785 | $1.18M | 0.00% | +6,797+61.9% | Added |
| Alps Advisors Inc | 16,792 | $1.11M | 0.01% | −1,834−9.8% | Reduced |
| Royal Bank of Canada | 16,696 | $1.10M | 0.00% | −5,903−26.1% | Reduced |
| Walleye Capital LLC | 14,649 | $968.0K | 0.01% | +585+4.2% | Added |
| Marshall Wace, LLP | 14,001 | $925.2K | 0.00% | +14,001 | New |
| AQR Capital Management LLC | 13,978 | $923.7K | 0.00% | +329+2.4% | Added |
| MetLife Investment Management | 13,922 | $920.0K | 0.00% | −932−6.3% | Reduced |
| Fred Alger Management, LLC | 13,726 | $907.0K | 0.00% | +13,726 | New |
| Sofinnova Investments, Inc. | 13,553 | $895.6K | 0.05% | +6,241+85.4% | Added |
| Teachers Retirement System of the State of Kentucky | 12,851 | $849.0K | 0.01% | 00.0% | Unchanged |
| Mirae Asset Global ETFs Holdings Ltd. | 12,646 | $833.7K | 0.00% | −2,395−15.9% | Reduced |
| State of Wisconsin Investment Board | 12,373 | $817.6K | 0.00% | −516−4.0% | Reduced |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 11,438 | $755.8K | 0.00% | +4,062+55.1% | Added |
| Legato Capital Management LLC | 11,287 | $745.8K | 0.08% | +4,059+56.2% | Added |
| Lion Point Capital, LP | 10,600 | $700.4K | 3.98% | 00.0% | Unchanged |
| Assenagon Asset Management S.A. | 10,433 | $689.4K | 0.00% | +10,433 | New |
| Point72 Asset Management, L.P. | 9,226 | $609.6K | 0.00% | +9,226 | New |