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 |
|---|---|---|---|---|---|
| FMR LLC | 5,586,894 | $357.2M | 0.02% | +136,672+2.5% | Added |
| Ra Capital Management, L.P. | 2,450,221 | $156.7M | 1.66% | +474,089+24.0% | Added |
| BlackRock, Inc. | 2,273,831 | $145.4M | 0.00% | −1,149−0.1% | Reduced |
| Wellington Management Group LLP | 1,735,376 | $111.0M | 0.02% | +217,102+14.3% | Added |
| State Street Corp | 1,698,244 | $108.6M | 0.00% | +510,253+43.0% | Added |
| Price T Rowe Associates Inc | 1,549,350 | $99.1M | 0.01% | −148,655−8.8% | Reduced |
| Atlas Venture Life Science Advisors, LLC | 1,513,875 | $96.8M | 12.25% | 00.0% | Unchanged |
| Vanguard Capital Management LLC | 1,375,430 | $87.9M | 0.00% | +1,375,430 | New |
| Frazier Life Sciences Management, L.P. | 1,354,852 | $86.6M | 2.23% | +94,852+7.5% | Added |
| TCG Crossover Management, LLC | 1,341,862 | $85.8M | 2.45% | +1,341,862 | New |
| JPMorgan Chase & Co | 1,371,480 | $83.4M | 0.01% | −209,647−13.3% | Reduced |
| BVF Inc | 1,272,312 | $81.4M | 2.59% | +622,312+95.7% | Added |
| OrbiMed Advisors LLC | 1,067,550 | $68.3M | 1.55% | 00.0% | Unchanged |
| Siren, L.L.C. | 988,401 | $63.2M | 1.75% | 00.0% | Unchanged |
| Woodline Partners LP | 958,281 | $61.3M | 0.23% | +4480.0% | Added |
| Geode Capital Management, LLC | 744,222 | $47.6M | 0.00% | +59,264+8.7% | Added |
| Vestal Point Capital, LP | 700,000 | $44.8M | 1.25% | −35,000−4.8% | Reduced |
| Deerfield Management Company, L.P. (Series C) | 657,000 | $42.0M | 0.50% | +145,837+28.5% | Added |
| Goldman Sachs Group Inc | 639,842 | $40.9M | 0.01% | −114,353−15.2% | Reduced |
| Jennison Associates LLC | 610,382 | $39.0M | 0.03% | +78,303+14.7% | Added |
| Logos Global Management LP | 560,000 | $35.8M | 1.84% | +50,000+9.8% | Added |
| Assenagon Asset Management S.A. | 546,247 | $34.9M | 0.06% | +188,411+52.7% | Added |
| Armistice Capital, LLC | 536,000 | $34.3M | 1.13% | +36,609+7.3% | Added |
| Bellevue Group AG | 459,314 | $29.4M | 0.70% | +459,314 | New |
| Saturn V Capital Management LLC | 449,926 | $28.8M | 5.21% | +151,497+50.8% | Added |
| Opaleye Management Inc. | 421,000 | $26.9M | 3.55% | +221,000+110.5% | Added |
| Palo Alto Investors LP | 401,719 | $25.7M | 3.93% | +84,263+26.5% | Added |
| Eventide Asset Management, LLC | 395,572 | $25.3M | 0.42% | +1800.0% | Added |
| Dimensional Fund Advisors LP | 394,447 | $25.2M | 0.01% | +170,872+76.4% | Added |
| Pictet Asset Management Holding SA | 387,005 | $24.7M | 0.03% | −7,369−1.9% | Reduced |
| Standard Life Aberdeen plc | 375,614 | $24.0M | 0.04% | +141,256+60.3% | Added |
| Foresite Capital Management V, LLC | 374,069 | $23.9M | 8.83% | +75,000+25.1% | Added |
| Baker Bros. Advisors LP | 349,657 | $22.4M | 0.13% | +12,607+3.7% | Added |
| Loomis Sayles & Co L P | 317,222 | $20.3M | 0.03% | +34,813+12.3% | Added |
| Checkpoint Capital L.P. | 286,661 | $18.3M | 6.58% | −166,331−36.7% | Reduced |
| Octagon Capital Advisors LP | 270,000 | $17.3M | 1.91% | +270,000 | New |
| Charles Schwab Investment Management Inc | 251,195 | $16.1M | 0.00% | +4,156+1.7% | Added |
| Vanguard Portfolio Management LLC | 247,338 | $15.8M | 0.00% | +247,338 | New |
| Northern Trust Corp | 247,195 | $15.8M | 0.00% | +19,125+8.4% | Added |
| Vanguard Fiduciary Trust Co | 217,436 | $13.9M | 0.00% | +217,436 | New |
| Bank of New York Mellon Corp | 204,968 | $13.1M | 0.00% | +137,261+202.7% | Added |
| Silverarc Capital Management, LLC | 196,028 | $12.5M | 1.48% | +196,028 | New |
| Ensign Peak Advisors, Inc | 191,487 | $12.2M | 0.02% | +14,437+8.2% | Added |
| Integral Health Asset Management, LLC | 170,000 | $10.9M | 0.58% | +170,000 | New |
| Bank of America Corp | 166,775 | $10.7M | 0.00% | +30,789+22.6% | Added |
| Bain Capital Life Sciences Investors, LLC | 141,234 | $9.03M | 0.81% | +141,234 | New |
| BNP Paribas Arbitrage, SA | 127,737 | $8.17M | 0.01% | +5,584+4.6% | Added |
| Alyeska Investment Group, L.P. | 125,000 | $7.99M | 0.02% | +75,000+150.0% | Added |
| Catalio Capital Management, LP | 122,978 | $7.86M | 1.64% | +12,551+11.4% | Added |
| UBS Asset Management Americas Inc | 110,890 | $7.09M | 0.00% | −3,461−3.0% | Reduced |
| Kennedy Capital Management, Inc. | 108,286 | $6.92M | 0.15% | +98,962+1,061.4% | Added |
| UBS Group AG | 98,621 | $6.31M | 0.00% | −17,491−15.1% | Reduced |
| Citadel Advisors LLC | 97,930 | $6.26M | 0.00% | −2,465−2.5% | Reduced |
| DnB Asset Management AS | 96,755 | $6.19M | 0.02% | +12,500+14.8% | Added |
| Morgan Stanley | 94,264 | $6.03M | 0.00% | +19,438+26.0% | Added |
| Millennium Management LLC | 83,259 | $5.32M | 0.00% | −101,520−54.9% | Reduced |
| Jump Financial, LLC | 81,829 | $5.23M | 0.08% | +81,829 | New |
| Sofinnova Investments, Inc. | 78,320 | $5.01M | 0.25% | −32,690−29.4% | Reduced |
| Freestone Grove Partners LP | 68,687 | $4.39M | 0.03% | +68,687 | New |
| iA Global Asset Management Inc. | 66,243 | $4.24M | 0.06% | −187−0.3% | Reduced |
| Sio Capital Management, LLC | 65,203 | $4.17M | 0.60% | +7,617+13.2% | Added |
| Casdin Capital, LLC | 65,000 | $4.16M | 0.31% | +65,000 | New |
| KVP Capital Advisors, LP | 58,250 | $3.72M | 2.78% | 00.0% | Unchanged |
| Moore Capital Management, LP | 57,796 | $3.70M | 0.13% | +57,796 | New |
| Rafferty Asset Management, LLC | 53,869 | $3.44M | 0.01% | +17,776+49.3% | Added |
| Sphera Funds Management Ltd. | 53,538 | $3.42M | 0.59% | +53,538 | New |
| NEXTBio Capital Management LP | 52,655 | $3.37M | 1.56% | +9,877+23.1% | Added |
| Nuveen, LLC | 51,380 | $3.29M | 0.00% | +2,909+6.0% | Added |
| Burkehill Global Management, LP | 50,000 | $3.20M | 0.16% | 00.0% | Unchanged |
| HealthInvest Partners AB | 107,255 | $3.19M | 1.03% | +59,288+123.6% | Added |
| Schroder Investment Management Group | 50,959 | $3.10M | 0.00% | +856+1.7% | Added |
| Swiss National Bank | 48,000 | $3.07M | 0.00% | 00.0% | Unchanged |
| Ameriprise Financial Inc | 45,837 | $2.93M | 0.00% | −37,147−44.8% | Reduced |
| Raymond James Financial Inc | 44,700 | $2.73M | 0.00% | −35,574−44.3% | Reduced |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 39,910 | $2.55M | 0.00% | −293−0.7% | Reduced |
| Lazard Asset Management LLC | 39,400 | $2.52M | 0.00% | −18,653−32.1% | Reduced |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 38,006 | $2.43M | 0.00% | +10,705+39.2% | Added |
| Seven Grand Managers, LLC | 35,000 | $2.24M | 0.15% | 00.0% | Unchanged |
| XTX Topco Ltd | 34,418 | $2.20M | 0.04% | +11,324+49.0% | Added |
| California State Teachers Retirement System | 34,382 | $2.20M | 0.00% | +11,126+47.8% | Added |
| Barclays PLC | 33,267 | $2.13M | 0.00% | −66,345−66.6% | Reduced |
| Rhumbline Advisers | 33,058 | $2.11M | 0.00% | +3,225+10.8% | Added |
| Manufacturers Life Insurance Company, The | 32,493 | $2.08M | 0.00% | −20,017−38.1% | Reduced |
| Brevan Howard Capital Management LP | 32,406 | $2.04M | 0.02% | −17,307−34.8% | Reduced |
| Renaissance Technologies LLC | 31,820 | $2.03M | 0.00% | −31,000−49.3% | Reduced |
| Squarepoint Ops LLC | 31,709 | $2.03M | 0.00% | +15,955+101.3% | Added |
| Alps Advisors Inc | 31,058 | $1.99M | 0.01% | +56+0.2% | Added |
| Tudor Investment Corp Et Al | 31,002 | $1.98M | 0.01% | −35,123−53.1% | Reduced |
| Invesco Ltd. | 30,638 | $1.96M | 0.00% | −30,432−49.8% | Reduced |
| Alliancebernstein L.P. | 24,540 | $1.95M | 0.00% | 00.0% | Unchanged |
| TD Asset Management Inc | 30,476 | $1.95M | 0.00% | −39,158−56.2% | Reduced |
| RTW Investments, LP | 30,000 | $1.92M | 0.02% | 00.0% | Unchanged |
| Victory Capital Management Inc | 29,218 | $1.87M | 0.00% | −47,120−61.7% | Reduced |
| Bank of Montreal | 28,773 | $1.84M | 0.00% | +3,947+15.9% | Added |
| Nantahala Capital Management, LLC | 25,653 | $1.64M | 0.10% | −107,147−80.7% | Reduced |
| The PNC Financial Services Group, Inc. | 25,292 | $1.62M | 0.00% | +92+0.4% | Added |
| Deutsche Bank AG | 24,401 | $1.56M | 0.00% | +3,878+18.9% | Added |
| Profund Advisors LLC | 23,972 | $1.53M | 0.06% | +10,494+77.9% | Added |
| Algert Global LLC | 22,680 | $1.45M | 0.02% | +22,680 | New |
| Boothbay Fund Management, LLC | 21,378 | $1.37M | 0.03% | +21,378 | New |