Disc MedicineIRON
13F holders, Q2 2026 (June 30)216holders +13
35new positions
23sold out
5famous investors
$73.20avg. 13F price*
At the end of Q2 2026, 216 institutions reported holding Disc Medicine Inc. (IRON) in their 13F filings, up 13 from Q1 2026. 35 opened new positions and 23 sold out. The largest holders were FMR LLC ($358.0M), BlackRock, Inc. ($180.5M) and Ra Capital Management, L.P. ($179.2M). 5 famous investors held it, including Ken Griffin (0.0% of Citadel Advisors's portfolio), Paul Tudor Jones (0.0% of Tudor Investment Corporation's portfolio) and Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Disc Medicine Inc.
- CUSIP
- 254604101
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2026 → Q2 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 35 | $46.5M |
| Exits | 23 | $28.7M |
All 13F filers, Q1 2026 → Q2 2026: 4,484,570 shares bought and 3,614,776 shares sold, net +869,794 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 216 holders
| FMR LLC | 0.02% | Reduce -12.4% | 4,894,473 | $358.0M |
| BlackRock, Inc. | 0.00% | Add +8.5% | 2,467,899 | $180.5M |
| Ra Capital Management, L.P. | 1.56% | No change | 2,450,221 | $179.2M |
| JPMorgan Chase & Co. | 0.01% | Add +36.8% | 1,875,795 | $139.9M |
| T. Rowe Price Associates Inc. | 0.01% | Add +21.0% | 1,875,399 | $137.2M |
| Wellington Management Group LLP | 0.02% | Add +0.3% | 1,741,351 | $127.4M |
| State Street Corp. | 0.00% | Reduce -2.9% | 1,648,836 | $120.6M |
| Vestal Point Capital, LP | 2.65% | Add +121.4% | 1,550,000 | $113.4M |
| Atlas Venture Life Science Advisors, LLC | 12.56% | No change | 1,513,875 | $110.7M |
| Vanguard Capital Management LLC | 0.00% | Reduce -0.5% | 1,369,027 | $100.1M |
| Frazier Life Sciences Management, L.P. | 2.16% | No change | 1,354,852 | $99.1M |
| TCG Crossover Management, LLC | 2.36% | No change | 1,341,862 | $98.1M |
| BVF Inc. | 2.16% | Reduce -9.3% | 1,153,612 | $84.4M |
| Woodline Partners LP | 0.22% | No change | 958,281 | $70.1M |
| Siren, L.L.C. | 1.32% | Reduce -10.1% | 888,401 | $65.0M |
| Logos Global Management LP | 2.75% | Add +56.3% | 875,000 | $64.0M |
| Opaleye Management Inc. | 5.66% | Add +103.1% | 855,000 | $62.5M |
| Geode Capital Management, LLC | 0.00% | Add +6.1% | 789,724 | $57.8M |
| Deerfield Management Company, L.P. | 0.60% | No change | 657,000 | $48.1M |
| Dimensional Fund Advisors LP | 0.01% | Add +44.3% | 569,018 | $41.6M |
| Bellevue Group AG | 0.86% | Add +21.9% | 560,000 | $41.0M |
| Saturn V Capital Management LP | 5.50% | Add +16.6% | 524,730 | $38.4M |
| Armistice Capital, LLC | 0.93% | Reduce -14.2% | 460,000 | $33.6M |
| Jennison Associates LLC | 0.02% | Reduce -28.0% | 439,520 | $32.1M |
| Aberdeen Group plc | 0.04% | Add +16.7% | 438,174 | $32.0M |
| Palo Alto Investors LP | 4.21% | Add +3.7% | 416,646 | $30.5M |
| Eventide Asset Management, LLC | 0.39% | Add +0.0% | 395,651 | $28.9M |
| Pictet Asset Management Holding SA | 0.03% | Reduce -0.4% | 385,375 | $28.2M |
| Assenagon Asset Management S.A. | 0.04% | Reduce -29.7% | 384,158 | $28.1M |
| Loomis Sayles & Co. L P | 0.04% | Add +20.4% | 381,864 | $27.9M |
| Foresite Capital Management V, LLC | 7.55% | No change | 374,069 | $27.4M |
| Orbimed Advisors LLC | 0.50% | Reduce -66.5% | 357,535 | $26.2M |
| Baker Bros. Advisors LP | 0.13% | No change | 349,657 | $25.6M |
| Vanguard Portfolio Management LLC | 0.00% | Add +14.0% | 281,937 | $20.6M |
| Octagon Capital Advisors LP | 1.81% | No change | 270,000 | $19.7M |
| Northern Trust Corp. | 0.00% | Add +7.2% | 264,990 | $19.4M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +2.5% | 257,382 | $18.8M |
| Checkpoint Capital L.P. | 4.51% | Reduce -16.2% | 240,125 | $17.6M |
| Vanguard Fiduciary Trust Co. | 0.00% | Add +3.6% | 225,198 | $16.5M |
| Citadel Advisors | 0.01% | Add +113.7% | 209,308 | $15.3M |
| Bank of New York Mellon Corp | 0.00% | Reduce -0.1% | 204,727 | $15.0M |
| BNP Paribas Financial Markets | 0.01% | Add +44.6% | 184,695 | $13.5M |
| Catalio Capital Management, LP | 2.19% | Add +29.6% | 159,384 | $11.7M |
| Sofinnova Investments, Inc. | 0.57% | Add +86.7% | 146,239 | $10.7M |
| Bain Capital Life Sciences Investors, LLC | 0.61% | No change | 141,234 | $10.3M |
| Two Sigma Investments, LP | 0.01% | New | 136,750 | $10.0M |
| Bank of America Corp. | 0.00% | Reduce -19.0% | 135,111 | $9.9M |
| Alyeska Investment Group, L.P. | 0.02% | No change | 125,000 | $9.1M |
| Ensign Peak Advisors, Inc | 0.01% | Reduce -36.2% | 122,111 | $8.9M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Add +2.9% | 114,109 | $8.3M |
| UBS Group AG | 0.00% | Add +12.5% | 110,971 | $8.1M |
| Trexquant Investment LP | 0.05% | New | 107,699 | $7.9M |
| Kennedy Capital Management LLC | 0.14% | Reduce -1.4% | 106,769 | $7.8M |
| Millennium Management | 0.01% | Add +27.6% | 106,248 | $7.8M |
| Goldman Sachs Group Inc. | 0.00% | Reduce -84.8% | 97,383 | $7.1M |
| Morgan Stanley | 0.00% | Reduce -2.8% | 91,595 | $6.7M |
| HRT Financial LP | 0.01% | New | 90,822 | $6.6M |
| Silverarc Capital Management, LLC | 0.67% | Reduce -57.8% | 82,800 | $6.1M |
| Raymond James Financial Inc. | 0.00% | Add +74.5% | 77,980 | $5.7M |
| Squarepoint Ops LLC | 0.01% | Add +139.3% | 75,872 | $5.5M |
| DNB Asset Management AS | 0.01% | Reduce -24.4% | 73,127 | $5.3M |
| iA Global Asset Management Inc. | 0.06% | Reduce -0.3% | 66,023 | $4.8M |
| Casdin Capital, LLC | 0.24% | No change | 65,000 | $4.8M |
| Sphera Funds Management LTD. | 0.67% | Add +18.7% | 63,538 | $4.6M |
| Nuveen, LLC | 0.00% | Add +17.5% | 60,357 | $4.4M |
| KVP Capital Advisors, LP | 3.13% | No change | 58,250 | $4.3M |
| Moore Capital Management, LP | 0.10% | No change | 57,796 | $4.2M |
| XTX Topco Ltd | 0.05% | Add +64.8% | 56,710 | $4.1M |
| NEXTBio Capital Management LP | 1.77% | No change | 52,655 | $3.9M |
| Algert Global LLC | 0.04% | Add +128.6% | 51,850 | $3.8M |
| ExodusPoint Capital Management, LP | 0.04% | New | 51,623 | $3.8M |
| Schroder Investment Management Group | 0.00% | Reduce -1.9% | 50,000 | $3.7M |
| Burkehill Global Management, LP | 0.14% | No change | 50,000 | $3.7M |
| Brevan Howard Capital Management LP | 0.05% | Add +54.3% | 49,996 | $3.7M |
| Swiss National Bank | 0.00% | Add +3.8% | 49,800 | $3.6M |
| Ameriprise Financial Inc. | 0.00% | Add +0.1% | 45,874 | $3.4M |
| Atle Fund Management AB | 0.86% | Reduce -59.3% | 43,682 | $3.2M |
| Quadrature Capital Ltd | 0.03% | New | 42,419 | $3.1M |
| Invesco Ltd. | 0.00% | Add +37.3% | 42,057 | $3.1M |
| California State Teachers Retirement System | 0.00% | Add +14.5% | 39,360 | $2.9M |
| Alps Advisors Inc. | 0.01% | Add +24.2% | 38,565 | $2.8M |
| Citigroup Inc. | 0.00% | Add +394.9% | 38,317 | $2.8M |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 0.00% | Reduce -4.1% | 38,262 | $2.8M |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 0.00% | Reduce -3.6% | 36,634 | $2.7M |
| Rhumbline Advisers | 0.00% | Add +8.4% | 35,844 | $2.6M |
| Lazard Asset Management LLC | 0.00% | Reduce -11.1% | 35,034 | $2.6M |
| Seven Grand Managers, LLC | 0.10% | No change | 35,000 | $2.6M |
| Marshall Wace, LLP | 0.00% | New | 34,394 | $2.5M |
| Jump Financial, LLC | 0.02% | Reduce -60.2% | 32,549 | $2.4M |
| Bank of Montreal | 0.00% | Add +12.3% | 32,308 | $2.4M |
| Deutsche Bank AG | 0.00% | Add +25.6% | 30,643 | $2.2M |
| Alliancebernstein L.P. | 0.00% | Add +41.3% | 34,670 | $2.2M |
| RTW Investments, LP | 0.02% | No change | 30,000 | $2.2M |
| Victory Capital Management Inc. | 0.00% | Reduce -0.3% | 29,117 | $2.1M |
| Wells Fargo & Company | 0.00% | Add +96.9% | 28,924 | $2.1M |
| Tudor Investment Corporation | 0.01% | Reduce -7.5% | 28,663 | $2.1M |
| Manufacturers Life Insurance Company, The | 0.00% | Reduce -14.5% | 27,771 | $2.0M |
| Y-Intercept (Hong Kong) Ltd | 0.04% | New | 26,888 | $2.0M |
| Rafferty Asset Management, LLC | 0.00% | Reduce -50.7% | 26,566 | $1.9M |
| Campbell & CO Investment Adviser LLC | 0.10% | New | 25,568 | $1.9M |
"% of holder's portfolio" is IRON's weight in each manager's 13F, not the share of Disc Medicine Inc. the manager owns.