DISC MEDICINE INC IRON
$76.26
+1.7% 52w: $51.13 – $94.11
Latest 13F among current holders filed 30 days ago (Jun 4, 2026)
Price — last 12 months
research preview data51.1372.6294.11
Jun 20, 2025 Jul 2, 2026
Institutional holders
204
+6 QoQ
13F value
$2.67B
-12.1% QoQ
Smart-money holders
35
signal tier ≥ 2
New smart buyers
8
Q1 2026
Options barometer
4.7×
$23.3M calls / $5.0M puts
Institutional value by quarter
Number of holders
Who owns IRON?
Q1 2026 filings| Fund | Type | Shares | Value | % of fund | Change |
|---|---|---|---|---|---|
| FMR LLC | Long only active | 5.6M | $357.2M | 0.0% | +2.5% |
| RA CAPITAL MANAGEMENT, L.P. ★2 | Fundamental diversified | 2.5M | $156.7M | 1.7% | +24.0% |
| BlackRock, Inc. | Index provider | 2.3M | $145.4M | 0.0% | -0.1% |
| WELLINGTON MANAGEMENT GROUP LLP | Long only active | 1.7M | $111.0M | 0.0% | +14.3% |
| STATE STREET CORP | Index provider | 1.7M | $108.6M | 0.0% | +43.0% |
| PRICE T ROWE ASSOCIATES INC /MD/ | Diversified mechanical | 1.5M | $99.1M | 0.0% | -8.8% |
| Atlas Venture Life Science Advisors, LLC ★3 | Fundamental concentrated | 1.5M | $96.8M | 12.3% | Held |
| VANGUARD CAPITAL MANAGEMENT LLC | Diversified mechanical | 1.4M | $87.9M | 0.0% | — |
| Frazier Life Sciences Management, L.P. ★3 | Fundamental concentrated | 1.4M | $86.6M | 2.2% | +7.5% |
| TCG Crossover Management, LLC ★3 | Fundamental concentrated | 1.3M | $85.8M | 2.5% | New |
| JPMORGAN CHASE & CO | Bank broker | 1.4M | $83.4M | 0.0% | -13.3% |
| BVF INC/IL ★3 | Fundamental concentrated | 1.3M | $81.4M | 2.6% | +95.7% |
| ORBIMED ADVISORS LLC ★2 | Fundamental diversified | 1.1M | $68.3M | 1.5% | Held |
| Siren, L.L.C. ★2 | Fundamental diversified | 988.4K | $63.2M | 1.8% | Held |
| Woodline Partners LP | Other | 958.3K | $61.3M | 0.2% | 0.0% |
| GEODE CAPITAL MANAGEMENT, LLC | Index provider | 744.2K | $47.6M | 0.0% | +8.7% |
| Vestal Point Capital, LP ★2 | Fundamental diversified | 700.0K | $44.8M | 1.3% | -4.8% |
| DEERFIELD MANAGEMENT COMPANY, L.P. | Quant stat arb | 657.0K | $42.0M | 0.6% | +28.5% |
| GOLDMAN SACHS GROUP INC | Bank broker | 639.8K | $40.9M | 0.0% | -15.2% |
| JENNISON ASSOCIATES LLC | Other | 610.4K | $39.0M | 0.0% | +14.7% |
| Logos Global Management LP ★2 | Fundamental concentrated | 560.0K | $35.8M | 1.8% | +9.8% |
| Assenagon Asset Management S.A. | Diversified mechanical | 546.2K | $34.9M | 0.1% | +52.7% |
| ARMISTICE CAPITAL, LLC | Quant stat arb | 536.0K | $34.3M | 1.1% | +7.3% |
| Bellevue Group AG ★2 | Fundamental diversified | 459.3K | $29.4M | 0.7% | New |
| Saturn V Capital Management LP ★3 | Fundamental concentrated | 449.9K | $28.8M | 5.2% | +50.8% |
| Opaleye Management Inc. ★2 | Fundamental concentrated | 421.0K | $26.9M | 3.5% | +110.5% |
| Palo Alto Investors LP ★3 | Fundamental concentrated | 401.7K | $25.7M | 3.9% | +26.5% |
| EVENTIDE ASSET MANAGEMENT, LLC | Other | 395.6K | $25.3M | 0.4% | 0.0% |
| DIMENSIONAL FUND ADVISORS LP | Quant stat arb | 394.4K | $25.2M | 0.0% | +76.4% |
| Pictet Asset Management Holding SA | Diversified mechanical | 387.0K | $24.7M | 0.0% | -1.9% |
| Aberdeen Group plc | Other | 375.6K | $24.0M | 0.0% | +60.3% |
| Foresite Capital Management V, LLC ★2 | Fundamental diversified | 374.1K | $23.9M | 8.8% | +25.1% |
| BAKER BROS. ADVISORS LP ★2 | Fundamental diversified | 349.7K | $22.4M | 0.1% | +3.7% |
| LOOMIS SAYLES & CO L P | Other | 317.2K | $20.3M | 0.0% | +12.3% |
| Checkpoint Capital L.P. ★2 | Fundamental concentrated | 286.7K | $18.3M | 6.6% | -36.7% |
| Octagon Capital Advisors LP ★2 | Fundamental concentrated | 270.0K | $17.3M | 1.9% | New |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | Index provider | 251.2K | $16.1M | 0.0% | +1.7% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Diversified mechanical | 247.3K | $15.8M | 0.0% | — |
| NORTHERN TRUST CORP | Index provider | 247.2K | $15.8M | 0.0% | +8.4% |
| VANGUARD FIDUCIARY TRUST CO | Diversified mechanical | 217.4K | $13.9M | 0.0% | — |
| Bank of New York Mellon Corp | Diversified mechanical | 205.0K | $13.1M | 0.0% | +202.7% |
| SILVERARC CAPITAL MANAGEMENT, LLC ★2 | Fundamental diversified | 196.0K | $12.5M | 1.5% | New |
| Ensign Peak Advisors, Inc | Diversified mechanical | 191.5K | $12.2M | 0.0% | +8.2% |
| Integral Health Asset Management, LLC ★2 | Fundamental diversified | 170.0K | $10.9M | 0.6% | New |
| BANK OF AMERICA CORP /DE/ | Bank broker | 166.8K | $10.7M | 0.0% | +22.6% |
| Bain Capital Life Sciences Investors, LLC ★3 | Fundamental concentrated | 141.2K | $9.0M | 0.8% | New |
| BNP PARIBAS FINANCIAL MARKETS | Bank broker | 127.7K | $8.2M | 0.0% | +4.6% |
| Alyeska Investment Group, L.P. | Quant stat arb | 125.0K | $8.0M | 0.0% | +150.0% |
| Catalio Capital Management, LP ★2 | Fundamental concentrated | 123.0K | $7.9M | 1.6% | +11.4% |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | Bank broker | 110.9K | $7.1M | 0.0% | -3.0% |
Exits are not a bearish signal: our backtest shows stocks specialists exit keep outperforming for 3+ quarters — selling usually means profit-taking, not a forecast.
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