$66.34
+0.37 (+0.56%)
Market Cap
$2.6B
Shares Outstanding
38,160,065
Institutional Holders
157
Total Inst. Value
$2.5B
% of Float Held
188.4%
QoQ Holder Change
+43
Institutional data as of Q1 2025
New Positions
30
Closed Positions
23
Increased
72
Decreased
31
Institutional Ownership Trend
Top 10 Institutional Holders(Q1 2025)
| # | Fund | Value | Shares |
|---|---|---|---|
| 1 | DEERFIELD MANAGEMENT COMPANY, L.P. | $1.1B | 21,905,324 |
| 2 | FMR LLC | $160.1M | 3,224,381 |
| 3 | Atlas Venture Life Science Advisors, LLC | $118.4M | 2,384,456 |
| 4 | WELLINGTON MANAGEMENT GROUP LLP | $116.3M | 2,343,499 |
| 5 | BlackRock, Inc. | $104.0M | 2,094,560 |
| 6 | Frazier Life Sciences Management, L.P. | $87.1M | 1,754,834 |
| 7 | ORBIMED ADVISORS LLC | $70.2M | 1,415,020 |
| 8 | PRICE T ROWE ASSOCIATES INC /MD/ | $67.4M | 1,358,254 |
| 9 | VANGUARD GROUP INC | $64.8M | 1,305,046 |
| 10 | Paradigm Biocapital Advisors LP | $60.1M | 1,210,971 |
Biggest Buyers & Sellers This Quarter
Top Buyers
| Fund | Shares Added | Value |
|---|---|---|
| DEERFIELD MANAGEMENT COMPANY, L.P. | +21.3M | $1.1B |
| FMR LLC | +1.4M | $160.1M |
| WELLINGTON MANAGEMENT GROUP LLP | +948K | $116.3M |
| BlackRock, Inc. | +235K | $104.0M |
| VANGUARD GROUP INC | +237K | $64.8M |
Top Sellers
| Fund | Shares Removed | Value |
|---|---|---|
| CITADEL ADVISORS LLC | -529K | $3K |
| ORBIMED ADVISORS LLC | -371K | $70.2M |
| Paradigm Biocapital Advisors LP | -287K | $60.1M |
| Atlas Venture Life Science Advisors, LLC | -125K | $118.4M |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | -50K | $14.9M |
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Frequently Asked Questions
How many institutional investors hold IRON?
As of Q1 2025, 157 institutional investors report holding IRON (Disc Medicine, Inc.) in their 13F filings.
What percentage of Disc Medicine, Inc. is owned by institutions?
Institutional investors hold approximately 188.4% of Disc Medicine, Inc.'s float as reported in SEC 13F filings.
Which hedge fund owns the most IRON?
The largest institutional holder of IRON is DEERFIELD MANAGEMENT COMPANY, L.P. with $1.1B in shares.
Are institutions buying or selling IRON?
This quarter, 30 institutions opened new positions in IRON and 23 closed their positions.
What is 13F institutional ownership?
SEC Form 13F is a quarterly report filed by institutional investment managers with over $100M in qualifying assets. It discloses their US equity holdings, providing transparency into what the largest investors are buying and selling.
How often is institutional ownership data updated?
13F filings are due 45 days after each calendar quarter end (May 15, Aug 14, Nov 14, Feb 14). Data is updated on HedgeTrace as new filings are processed.