IRON
Disc Medicine, Inc.
$76.26
+1.31 (+1.75%)
At close · Jul 2
Market Cap
$2.91B
Shares
38,199,089
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
The Jun 30, 2026 filing window is
still open — showing the latest known positions. Funds that have not filed yet
carry their prior-quarter positions; a fund that filed without this stock counts
as sold out.
Holders: 205
Total Value: $2,690,886,763
Total Shares: 42,083,822
Showing 1–100
of 210 holdings by value
· page 1 of 3
Institutional Ownership Trend
15 quarters
Holder Concentration
Across 205 13F filersTop Holder
13.3%
of institutional value
Top 5
32.7%
of institutional value
Top 10
49.7%
of institutional value
HHI
400
Broadly held
| Holder | Value (USD) | % of 13F | Shares | Type | Discretion | Filed | Open | |||
|---|---|---|---|---|---|---|---|---|---|---|
| Mega FMR LLC | $357,226,000 | 13.28% | 5,586,894 | Shares | Defined | 2026-05-15 | ||||
| Mid RA CAPITAL MANAGEMENT, L.P. | $156,667,130 | 5.82% | 2,450,221 | Shares | Sole | 2026-05-15 | ||||
| Mega BlackRock, Inc. | $145,388,748 | 5.40% | 2,273,831 | Shares | Sole | 2026-05-13 | ||||
| Mega WELLINGTON MANAGEMENT GROUP LLP | $110,959,937 | 4.12% | 1,735,376 | Shares | Defined | 2026-05-15 | ||||
| Mega STATE STREET CORP | $108,585,721 | 4.04% | 1,698,244 | Shares | Defined | 2026-05-15 | ||||
| Mega PRICE T ROWE ASSOCIATES INC /MD/ | $99,065,438 | 3.68% | 1,549,350 | Shares | Defined | 2026-05-15 | ||||
| Small Atlas Venture Life Science Advisors, LLC | $96,797,167 | 3.60% | 1,513,875 | Shares | Sole | 2026-05-14 | ||||
| Mega VANGUARD CAPITAL MANAGEMENT LLC | $87,944,994 | 3.27% | 1,375,430 | Shares | Defined | 2026-05-15 | ||||
| Mega JPMORGAN CHASE & CO | $87,692,428 | 3.26% | 1,371,480 | Shares | Defined | 2026-05-13 | ||||
| Mid Frazier Life Sciences Management, L.P. | $86,629,236 | 3.22% | 1,354,852 | Shares | Sole | 2026-05-15 | ||||
| Mid TCG Crossover Management, LLC | $85,798,656 | 3.19% | 1,341,862 | Shares | Sole | 2026-05-15 | ||||
| Mid BVF INC/IL | $81,351,629 | 3.02% | 1,272,312 | Shares | Defined | 2026-05-15 | ||||
| Mid ORBIMED ADVISORS LLC | $68,259,147 | 2.54% | 1,067,550 | Shares | Sole | 2026-05-15 | ||||
| Mid Siren, L.L.C. | $63,198,359 | 2.35% | 988,401 | Shares | Defined | 2026-05-14 | ||||
| Large Woodline Partners LP | $61,272,487 | 2.28% | 958,281 | Shares | Sole | 2026-05-15 | ||||
| Mega GEODE CAPITAL MANAGEMENT, LLC | $47,585,554 | 1.77% | 744,222 | Shares | Defined | 2026-05-15 | ||||
| Mid Vestal Point Capital, LP | $44,758,000 | 1.66% | 700,000 | Shares | Sole | 2026-05-15 | ||||
| Mid DEERFIELD MANAGEMENT COMPANY, L.P. | $42,008,580 | 1.56% | 657,000 | Shares | Defined | 2026-05-15 | ||||
| Mega GOLDMAN SACHS GROUP INC | $40,911,496 | 1.52% | 639,842 | Shares | Defined | 2026-05-15 | ||||
| Mega JENNISON ASSOCIATES LLC | $39,027,825 | 1.45% | 610,382 | Shares | Defined | 2026-05-06 | ||||
| Mid Logos Global Management LP | $35,806,400 | 1.33% | 560,000 | Shares | Sole | 2026-05-15 | ||||
| Large Assenagon Asset Management S.A. | $34,927,033 | 1.30% | 546,247 | Shares | Sole | 2026-04-20 | ||||
| Mid ARMISTICE CAPITAL, LLC | $34,271,840 | 1.27% | 536,000 | Shares | Sole | 2026-05-15 | ||||
| Mid Bellevue Group AG | $29,368,537 | 1.09% | 459,314 | Shares | Defined | 2026-05-15 | ||||
| Small Saturn V Capital Management LP | $28,768,268 | 1.07% | 449,926 | Shares | Sole | 2026-05-15 | ||||
| Small Opaleye Management Inc. | $26,918,740 | 1.00% | 421,000 | Shares | Sole | 2026-05-15 | ||||
| Small Palo Alto Investors LP | $25,685,912 | 0.95% | 401,719 | Shares | Sole | 2026-05-15 | ||||
| Mid EVENTIDE ASSET MANAGEMENT, LLC | $25,292,873 | 0.94% | 395,572 | Shares | Sole | 2026-05-15 | ||||
| Mega DIMENSIONAL FUND ADVISORS LP | $25,220,938 | 0.94% | 394,447 | Shares | Sole | 2026-05-07 | ||||
| Large Pictet Asset Management Holding SA | $24,745,099 | 0.92% | 387,005 | Shares | Sole | 2026-04-22 | ||||
| Large Aberdeen Group plc | $24,016,759 | 0.89% | 375,614 | Shares | Defined | 2026-04-29 | ||||
| Small Foresite Capital Management V, LLC | $23,917,971 | 0.89% | 374,069 | Shares | Sole | 2026-05-15 | ||||
| Large BAKER BROS. ADVISORS LP | $22,357,068 | 0.83% | 349,657 | Shares | Sole | 2026-05-15 | ||||
| Large LOOMIS SAYLES & CO L P | $20,283,174 | 0.75% | 317,222 | Shares | Defined | 2026-05-14 | ||||
| Large Caption Management, LLC | $19,182,000 | 0.71% | 300,000 | Call | Sole | 2026-05-15 | ||||
| Small Checkpoint Capital L.P. | $18,329,104 | 0.68% | 286,661 | Shares | Sole | 2026-05-15 | ||||
| Small Octagon Capital Advisors LP | $17,263,800 | 0.64% | 270,000 | Shares | Sole | 2026-05-15 | ||||
| Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $16,061,408 | 0.60% | 251,195 | Shares | Sole | 2026-05-15 | ||||
| Mega NORTHERN TRUST CORP Bank | $15,805,645 | 0.59% | 247,195 | Shares | Defined | 2026-05-14 | ||||
| Mega VANGUARD FIDUCIARY TRUST CO Bank | $13,902,857 | 0.52% | 217,436 | Shares | Defined | 2026-05-08 | ||||
| Mega Bank of New York Mellon Corp Bank | $13,105,649 | 0.49% | 204,968 | Shares | Defined | 2026-05-05 | ||||
| Small SILVERARC CAPITAL MANAGEMENT, LLC | $12,534,030 | 0.47% | 196,028 | Shares | Sole | 2026-05-14 | ||||
| Large Ensign Peak Advisors, Inc | $12,243,678 | 0.46% | 191,487 | Shares | Sole | 2026-05-13 | ||||
| Mid Integral Health Asset Management, LLC | $10,869,800 | 0.40% | 170,000 | Shares | Sole | 2026-05-15 | ||||
| Mega BANK OF AMERICA CORP /DE/ Bank | $10,663,592 | 0.40% | 166,775 | Shares | Defined | 2026-05-18 | ||||
| Mid Bain Capital Life Sciences Investors, LLC | $9,030,501 | 0.34% | 141,234 | Shares | Sole | 2026-05-15 | ||||
| Mega BNP PARIBAS ARBITRAGE, SA | $8,167,503 | 0.30% | 127,737 | Shares | Defined | 2026-05-12 | ||||
| Large Alyeska Investment Group, L.P. | $7,992,500 | 0.30% | 125,000 | Shares | Sole | 2026-05-15 | ||||
| Small Catalio Capital Management, LP | $7,863,213 | 0.29% | 122,978 | Shares | Sole | 2026-05-15 | ||||
| Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | $7,090,304 | 0.26% | 110,890 | Shares | Defined | 2026-05-13 | ||||
| Mid KENNEDY CAPITAL MANAGEMENT LLC | $6,923,806 | 0.26% | 108,286 | Shares | Sole | 2026-05-13 | ||||
| Small Atle Fund Management AB | $6,857,884 | 0.25% | 107,255 | Shares | Sole | 2026-05-11 | ||||
| Mega UBS Group AG | $6,305,825 | 0.23% | 98,621 | Shares | Defined | 2026-05-05 | ||||
| Mega CITADEL ADVISORS LLC | $6,261,644 | 0.23% | 97,930 | Shares | Defined | 2026-05-15 | ||||
| Large DNB Asset Management AS | $6,186,514 | 0.23% | 96,755 | Shares | Other | 2026-05-14 | ||||
| Mega MORGAN STANLEY | $6,027,236 | 0.22% | 94,264 | Shares | Defined | 2026-05-15 | ||||
| Mega MILLENNIUM MANAGEMENT LLC | $5,323,580 | 0.20% | 83,259 | Shares | Sole | 2026-05-15 | ||||
| Mid Jump Financial, LLC | $5,232,146 | 0.19% | 81,829 | Shares | Defined | 2026-05-14 | ||||
| Mid Sofinnova Investments, Inc. | $5,007,780 | 0.19% | 78,320 | Shares | Sole | 2026-05-15 | ||||
| Large Freestone Grove Partners LP | $4,391,846 | 0.16% | 68,687 | Shares | Sole | 2026-05-15 | ||||
| Mid iA Global Asset Management Inc. | $4,235,577 | 0.16% | 66,243 | Shares | Sole | 2026-04-23 | ||||
| Small Sio Capital Management, LLC | $4,169,079 | 0.15% | 65,203 | Shares | Sole | 2026-05-14 | ||||
| Mid Casdin Capital, LLC | $4,156,100 | 0.15% | 65,000 | Shares | Sole | 2026-05-15 | ||||
| Small KVP Capital Advisors, LP | $3,724,505 | 0.14% | 58,250 | Shares | Sole | 2026-05-13 | ||||
| Mid MOORE CAPITAL MANAGEMENT, LP | $3,695,476 | 0.14% | 57,796 | Shares | Sole | 2026-05-15 | ||||
| Large Rafferty Asset Management, LLC | $3,444,383 | 0.13% | 53,869 | Shares | Sole | 2026-05-15 | ||||
| Small SPHERA FUNDS MANAGEMENT LTD. | $3,423,219 | 0.13% | 53,538 | Shares | Defined | 2026-05-15 | ||||
| Small NEXTBio Capital Management LP | $3,366,760 | 0.13% | 52,655 | Shares | Sole | 2026-05-14 | ||||
| Mega Nuveen, LLC | $3,285,237 | 0.12% | 51,380 | Shares | Defined | 2026-04-30 | ||||
| Mega SCHRODER INVESTMENT MANAGEMENT GROUP | $3,258,318 | 0.12% | 50,959 | Shares | Sole | 2026-05-14 | ||||
| Mid Burkehill Global Management, LP | $3,197,000 | 0.12% | 50,000 | Shares | Sole | 2026-05-15 | ||||
| Mega Swiss National Bank Bank | $3,069,120 | 0.11% | 48,000 | Shares | Sole | 2026-05-07 | ||||
| Mega AMERIPRISE FINANCIAL INC | $2,930,817 | 0.11% | 45,837 | Shares | Defined | 2026-05-15 | ||||
| Mega RAYMOND JAMES FINANCIAL INC | $2,858,115 | 0.11% | 44,700 | Shares | Defined | 2026-05-14 | ||||
| Mid Nantahala Capital Management, LLC | $2,621,540 | 0.10% | 41,000 | Put | Sole | 2026-05-15 | ||||
| Large BNP PARIBAS ASSET MANAGEMENT Holding S.A. | $2,551,845 | 0.09% | 39,910 | Shares | Defined | 2026-05-14 | ||||
| Large LAZARD ASSET MANAGEMENT LLC | $2,519,236 | 0.09% | 39,400 | Shares | Sole | 2026-05-15 | ||||
| Large Universal- Beteiligungs- und Servicegesellschaft mbH | $2,430,103 | 0.09% | 38,006 | Shares | Defined | 2026-05-11 | ||||
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $2,346,598 | 0.09% | 36,700 | Call | Other | 2026-05-15 | ||||
| Mid SEVEN GRAND MANAGERS, LLC | $2,237,900 | 0.08% | 35,000 | Shares | Sole | 2026-05-06 | ||||
| Mid XTX Topco Ltd | $2,200,686 | 0.08% | 34,418 | Shares | Defined | 2026-05-15 | ||||
| Large CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM Pension | $2,198,385 | 0.08% | 34,382 | Shares | Sole | 2026-05-18 | ||||
| Mega BARCLAYS PLC | $2,127,091 | 0.08% | 33,267 | Shares | Defined | 2026-05-15 | ||||
| Mega RHUMBLINE ADVISERS | $2,113,728 | 0.08% | 33,058 | Shares | Sole | 2026-05-12 | ||||
| Mega MANUFACTURERS LIFE INSURANCE COMPANY, THE Insurance | $2,077,602 | 0.08% | 32,493 | Shares | Defined | 2026-05-15 | ||||
| Mid Brevan Howard Capital Management LP | $2,072,039 | 0.08% | 32,406 | Shares | Defined | 2026-05-15 | ||||
| Large RENAISSANCE TECHNOLOGIES LLC | $2,034,570 | 0.08% | 31,820 | Shares | Sole | 2026-05-14 | ||||
| Large Squarepoint Ops LLC | $2,027,473 | 0.08% | 31,709 | Shares | Defined | 2026-05-15 | ||||
| Large ALPS ADVISORS INC | $1,985,848 | 0.07% | 31,058 | Shares | Defined | 2026-05-08 | ||||
| Large TUDOR INVESTMENT CORP ET AL | $1,982,267 | 0.07% | 31,002 | Shares | Defined | 2026-05-15 | ||||
| Mega Invesco Ltd. | $1,958,991 | 0.07% | 30,638 | Shares | Defined | 2026-05-12 | ||||
| Mega TD Asset Management Inc | $1,948,635 | 0.07% | 30,476 | Shares | Sole | 2026-05-11 | ||||
| Large RTW INVESTMENTS, LP | $1,918,200 | 0.07% | 30,000 | Shares | Sole | 2026-05-15 | ||||
| Mega VICTORY CAPITAL MANAGEMENT INC | $1,868,198 | 0.07% | 29,218 | Shares | Sole | 2026-05-15 | ||||
| Mega BANK OF MONTREAL /CAN/ Bank | $1,839,744 | 0.07% | 28,773 | Shares | Defined | 2026-05-13 | ||||
| Mid Nantahala Capital Management, LLC | $1,640,252 | 0.06% | 25,653 | Shares | Sole | 2026-05-15 | ||||
| Mega PNC FINANCIAL SERVICES GROUP, INC. | $1,617,168 | 0.06% | 25,292 | Shares | Defined | 2026-05-08 | ||||
| Mega ALLIANCEBERNSTEIN L.P. | $1,569,087 | 0.06% | 24,540 | Shares | Defined | 2026-05-15 | ||||
| Mega DEUTSCHE BANK AG\ Bank | $1,560,199 | 0.06% | 24,401 | Shares | Defined | 2026-05-06 | ||||
| Mid PROFUND ADVISORS LLC | $1,532,769 | 0.06% | 23,972 | Shares | Sole | 2026-04-27 | ||||
| No holders match your search. | ||||||||||