Disc Medicine Ownership | Who Owns Disc Medicine?
Disc Medicine Ownership Summary
Disc Medicine is owned by 97.25% institutional investors, 10.61% insiders. Atlas venture life science advisors is the largest institutional shareholder, holding 6.81% of IRON shares.
IRON Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Disc Medicine | 97.25% | 10.61% | -7.86% |
| Sector | Healthcare Stocks | 488.17% | 11.08% | -399.26% |
| Industry | Biotech Stocks | 306.59% | 11.10% | -217.69% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Atlas venture life science advisors | 2.38M | 6.81% | $126.28M |
| Blackrock funding, inc. /de | 2.04M | 5.84% | $108.29M |
| Frazier life sciences management | 1.65M | 4.72% | $87.64M |
| Ra capital management | 1.58M | 4.50% | $83.52M |
| Orbimed advisors | 1.42M | 4.04% | $74.94M |
| Siren | 1.10M | 3.14% | $58.22M |
| Deerfield management company, l.p. (series c) | 919.40K | 2.63% | $48.69M |
| Logos global management lp | 700.00K | 2.00% | $37.07M |
| Bain capital life sciences investors | 583.50K | 1.67% | $30.90M |
| Tcg crossover management | 465.26K | 1.33% | $24.64M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Foresite capital management v | 299.07K | 19.62% | $15.84M |
| Atlas venture life science advisors | 2.38M | 19.07% | $126.28M |
| Saturn v capital management | 396.12K | 8.50% | $20.98M |
| Sio capital management | 284.79K | 5.76% | $15.08M |
| Logos global management lp | 700.00K | 4.10% | $37.07M |
| Bain capital life sciences investors | 583.50K | 3.87% | $30.90M |
| Frazier life sciences management | 1.65M | 3.50% | $87.64M |
| Siren | 1.10M | 3.01% | $58.22M |
| Tcg crossover management | 465.26K | 2.81% | $24.64M |
| Blue owl capital lp | 122.26K | 2.09% | $6.47M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Logos global management lp | 700.00K | 4.10% | 305.66K |
| Baker bros. advisors lp | 337.05K | 0.17% | 260.00K |
| Sio capital management | 284.79K | 5.76% | 211.28K |
| Adage capital partners gp | 450.00K | 0.04% | 150.00K |
| Palo alto investors lp | 145.69K | 1.64% | 145.69K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Bain capital life sciences investors | 583.50K | 3.87% | -400.00K |
| Bioimpact capital | - | - | -346.40K |
| Silverarc capital management | - | - | -236.47K |
| Perceptive advisors | - | - | -150.00K |
| Pictet asset management sa | - | - | -130.39K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Palo alto investors lp | 145.69K | 1.64% | 145.69K | $7.72M |
| Vestal point capital, lp | 140.00K | 0.39% | 140.00K | $7.41M |
| Nicholas investment partners, lp | 54.45K | 0.26% | 54.45K | $2.88M |
| Abrdn | 32.06K | 0.00% | 32.06K | $1.70M |
| Pfm health sciences, lp | 30.80K | 0.14% | 30.80K | $1.63M |
Sold Out
| Holder | Change |
|---|---|
| Ifp advisors | -1.00 |
| Parallel advisors | -4.00 |
| Amundi | -5.00 |
| Corecap advisors | -9.00 |
| Stephens consulting | -10.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| 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% |
| Jun 30, 2024 | 123 | -18.00% | 27,576,793 | 23.82% | 107 | 1.33% | 83 | -9.78% | 30 | 3.45% |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Aug 22, 2025 | Bitterman Kevin | - | Sell | $139.58K |
| Aug 14, 2025 | Bitterman Kevin | - | Sell | $439.86K |
| Aug 13, 2025 | Bitterman Kevin | - | Sell | $1.53M |
| Aug 05, 2025 | Bitterman Kevin | - | Sell | $24.08K |
| Jul 30, 2025 | Bitterman Kevin | - | Sell | $518.35K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2025 Q3 | - | 12 |
| 2025 Q2 | - | 4 |
| 2025 Q1 | - | 65 |
| 2024 Q4 | - | 26 |
| 2024 Q3 | - | 11 |
IRON Ownership FAQ
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