Keros Therapeutics Ownership | Who Owns Keros Therapeutics?
Keros Therapeutics Ownership Summary
Keros Therapeutics is owned by 94.52% institutional investors, 3.96% insiders, and 1.52% retail investors. Adar1 capital management is the largest institutional shareholder, holding 13.27% of KROS shares. Vanguard Total Stock Mkt Idx Inv is the top mutual fund, with 3.01% of its assets in Keros Therapeutics shares.
KROS Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Keros Therapeutics | 94.52% | 3.96% | 1.52% |
| Sector | Healthcare Stocks | 245.07% | 12.10% | -157.17% |
| Industry | Biotech Stocks | 380.48% | 11.73% | -292.21% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Adar1 capital management | 5.39M | 13.27% | $85.26M |
| Blackrock | 2.51M | 8.53% | $114.86M |
| Blackrock funding, inc. /de | 2.41M | 6.48% | $26.63M |
| Vanguard group | 1.53M | 3.75% | $31.06M |
| Nantahala capital management | 1.36M | 3.65% | $15.02M |
| Tang capital management | 1.42M | 3.49% | $22.45M |
| Alkeon capital management | 850.51K | 2.09% | $13.46M |
| Logos global management lp | 850.00K | 2.09% | $13.45M |
| Orbimed advisors | 759.15K | 2.04% | $8.38M |
| Qube research | 724.93K | 1.95% | $8.00M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Adar1 capital management | 5.39M | 8.01% | $85.26M |
| Superstring capital management lp | 95.08K | 1.48% | $1.50M |
| Logos global management lp | 850.00K | 1.21% | $13.45M |
| Monimus capital management, lp | 108.05K | 1.05% | $1.71M |
| Tang capital management | 1.42M | 0.86% | $22.45M |
| Redmile group | 552.51K | 0.85% | $8.74M |
| Rangeley capital | 54.40K | 0.58% | $600.58K |
| Nantahala capital management | 1.36M | 0.55% | $15.02M |
| Highvista strategies | 83.05K | 0.32% | $1.31M |
| Dafna capital management | 80.72K | 0.32% | $1.28M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Nantahala capital management | 1.36M | 0.55% | 1.00M |
| Blackrock | 2.51M | 0.00% | 347.23K |
| Dimensional fund advisors lp | 321.36K | 0.00% | 263.35K |
| Aqr capital management | 406.56K | 0.00% | 226.02K |
| Nuveen | 262.07K | 0.00% | 198.98K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Western standard | - | - | -2.19M |
| Braidwell lp | - | - | -1.89M |
| Darwin global management | - | - | -1.69M |
| Holocene advisors, lp | - | - | -1.20M |
| Vanguard group | 1.53M | 0.00% | -1.19M |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Vanguard fiduciary trust | 127.30K | 0.00% | 127.30K | $1.41M |
| Superstring capital management lp | 95.08K | 1.48% | 95.08K | $1.50M |
| Acadian asset management | 65.44K | 0.00% | 65.44K | $721.00K |
| Norges bank | 64.90K | 0.00% | 64.90K | $1.03M |
| Principal financial group | 59.59K | 0.00% | 59.59K | $657.92K |
Sold Out
| Holder | Change |
|---|---|
| Quantbot technologies lp | -1.00 |
| Hughes financial services | -1.00 |
| Twin peaks wealth advisors | -2.00 |
| Clearstead advisors | -3.00 |
| Nelson, van denburg & campbell wealth management group | -4.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Jun 30, 2026 | 133 | -14.74% | 18,715,266 | 0.65% | 94 | 1.05% | 63 | -16.00% | 50 | -9.09% |
| Mar 31, 2026 | 67 | -60.59% | 5,007,517 | -75.13% | 13 | 0.55% | 36 | -55.56% | 17 | -75.71% |
| Dec 31, 2025 | 102 | -36.65% | 10,764,752 | -69.51% | 26 | 0.35% | 46 | -45.88% | 41 | 2.50% |
| Sep 30, 2025 | 153 | 12.50% | 34,356,950 | 4.91% | 84 | 1.30% | 80 | 1.27% | 39 | 18.18% |
| Jun 30, 2025 | 143 | -13.86% | 35,921,666 | 4.01% | 88 | 1.22% | 82 | -14.58% | 35 | -7.89% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| Vanguard Total Stock Mkt Idx Inv | 595.32K | 3.01% | - |
| Vanguard Morn Total Stk Mkt Idx Investor | 595.32K | 3.01% | - |
| Vanguard MStar Total Stk Mkt Idx Invest | 595.32K | 3.00% | - |
| State Street® SPDR® S&P® Biotech ETF | 504.06K | 2.56% | 2.80K |
| Vanguard US Total Market Shares ETF | 960.39K | 2.37% | 1.20K |
| iShares Russell 2000 ETF | 464.57K | 2.34% | -8.26K |
| BlackRock Advantage Small Cap Core Instl | 416.48K | 2.10% | 144.51K |
| Fidelity Select Health Care | 820.00K | 2.02% | 20.00K |
| Federated Hermes MDT SCC Institutional | 382.34K | 1.93% | - |
| Federated Hermes MDT Small Cap Core IS | 382.34K | 1.93% | - |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Aug 18, 2026 | Tanini Annita | Corp. Controller & VP, Finance | Sell | $12.59K |
| Aug 18, 2026 | Lerner Lorena Raquel | Chief Scientific Officer | Sell | $36.71K |
| Aug 18, 2026 | Cho Esther | Chief Legal Officer | Sell | $46.15K |
| Aug 18, 2026 | Newton Charles W. | - | Sell | $5.68K |
| Aug 17, 2026 | BIENAIME JEAN JACQUES | - | Buy | $10.27K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2026 Q3 | 2 | 4 |
| 2026 Q2 | 3 | 4 |
| 2026 Q1 | 1 | 4 |
| 2025 Q4 | - | 2 |
| 2025 Q3 | - | - |
KROS Ownership FAQ
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