Disc Medicine Ownership | Who Owns Disc Medicine?
Disc Medicine Ownership Summary
Disc Medicine is owned by 9.10% institutional investors, 7.82% insiders, and 83.07% retail investors. Fmr is the largest institutional shareholder, holding 14.09% of IRON shares.
IRON Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Disc Medicine | 9.10% | 7.82% | 83.07% |
| Sector | Healthcare Stocks | 42.64% | 10.86% | 46.50% |
| Industry | Biotech Stocks | 45.45% | 10.77% | 43.78% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Fmr | 4.94M | 14.09% | $326.12M |
| Blackrock funding, inc. /de | 2.27M | 6.47% | $180.66M |
| Atlas venture life science advisors | 2.14M | 6.12% | $141.58M |
| Vanguard group | 1.77M | 5.02% | $140.37M |
| Ra capital management | 1.58M | 4.50% | $104.22M |
| Jpmorgan chase | 1.58M | 4.49% | $125.56M |
| Frazier life sciences management | 1.44M | 4.11% | $95.06M |
| Orbimed advisors | 1.42M | 4.04% | $93.50M |
| Wellington management group llp | 1.41M | 4.03% | $93.18M |
| Price t rowe associates inc /md/ | 1.33M | 3.79% | $87.65M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Atlas venture life science advisors | 2.14M | 18.81% | $141.58M |
| Foresite capital management v | 299.07K | 18.17% | $19.76M |
| Checkpoint capital | 430.00K | 9.52% | $28.41M |
| Saturn v capital management | 340.90K | 4.94% | $22.53M |
| Sio capital management | 284.79K | 4.76% | $18.82M |
| Lion point capital, lp | 10.60K | 3.98% | $700.45K |
| First turn management | 397.69K | 3.95% | $26.28M |
| Frazier life sciences management | 1.44M | 2.85% | $95.06M |
| Palo alto investors lp | 224.30K | 2.74% | $14.82M |
| Logos global management lp | 450.00K | 2.67% | $29.74M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Fmr | 4.94M | 0.02% | 1.69M |
| Jpmorgan chase | 1.58M | 0.01% | 828.25K |
| Jennison associates | 532.08K | 0.03% | 532.08K |
| Pictet asset management sa | 394.37K | 0.03% | 390.81K |
| Vestal point capital, lp | 500.00K | 1.49% | 360.00K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Paradigm biocapital advisors lp | 247.72K | 0.47% | -963.25K |
| Bain capital life sciences investors | - | - | -583.50K |
| Bioimpact capital | - | - | -346.40K |
| Logos global management lp | 450.00K | 2.67% | -250.00K |
| Atlas venture life science advisors | 2.14M | 18.81% | -241.84K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Jennison associates | 532.08K | 0.03% | 532.08K | $42.25M |
| Loomis sayles & co l p | 282.41K | 0.03% | 282.41K | $22.43M |
| First light asset management | 231.19K | 1.44% | 231.19K | $15.28M |
| Seven grand managers | 35.00K | 0.21% | 35.00K | $2.78M |
| American century companies | 27.94K | 0.00% | 27.94K | $1.85M |
Sold Out
| Holder | Change |
|---|---|
| Parallel advisors | -4.00 |
| Amundi | -5.00 |
| Corecap advisors | -9.00 |
| Stephens consulting | -10.00 |
| Bessemer group | -12.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Sep 30, 2025 | 51 | -66.45% | 3,188,170 | -90.64% | 9 | 0.10% | 26 | -73.20% | 13 | -63.89% |
| Jun 30, 2025 | 151 | -4.43% | 34,062,461 | 12.23% | 97 | 1.17% | 96 | -4.00% | 36 | 16.13% |
| Mar 31, 2025 | 159 | 1.27% | 33,141,259 | 24.71% | 99 | 1.26% | 100 | 13.64% | 32 | -27.27% |
| Dec 31, 2024 | 157 | 16.30% | 26,575,703 | -2.98% | 88 | 1.06% | 88 | 4.76% | 44 | 69.23% |
| Sep 30, 2024 | 135 | 9.76% | 27,392,464 | -0.67% | 91 | 0.79% | 84 | 1.20% | 26 | -13.33% |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Jan 20, 2026 | Khara Rahul | Chief Legal Officer | Sell | $69.74K |
| Jan 02, 2026 | Khara Rahul | Chief Legal Officer | Sell | $27.18K |
| Jan 02, 2026 | Khara Rahul | Chief Legal Officer | Sell | $392.57K |
| Jan 02, 2026 | Khara Rahul | Chief Legal Officer | Sell | $91.72K |
| Dec 17, 2025 | Bitterman Kevin | - | Sell | $19.48K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2026 Q1 | - | 4 |
| 2025 Q4 | - | 58 |
| 2025 Q3 | - | 12 |
| 2025 Q2 | - | 4 |
| 2025 Q1 | - | 65 |
IRON Ownership FAQ
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