Alumis Ownership | Who Owns Alumis?
Alumis Ownership Summary
Alumis is owned by 94.94% institutional investors, 0.52% insiders, and 4.54% retail investors. Ayurmaya capital management company, lp is the largest institutional shareholder, holding 12.11% of ALMS shares. Vanguard Total Stock Mkt Idx Inv is the top mutual fund, with 2.46% of its assets in Alumis shares.
ALMS Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Alumis | 94.94% | 0.52% | 4.54% |
| 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 |
|---|---|---|---|
| Ayurmaya capital management company, lp | 15.14M | 12.11% | $426.03M |
| Blackrock funding, inc. /de | 8.22M | 6.57% | $231.26M |
| Fmr | 6.77M | 5.41% | $190.48M |
| Deep track capital, lp | 6.35M | 5.08% | $178.65M |
| Samsara biocapital | 6.35M | 5.07% | $178.55M |
| Foresite capital management v | 5.90M | 4.72% | $165.94M |
| Price t rowe associates inc /md/ | 5.20M | 4.16% | $146.32M |
| Vanguard group | 4.10M | 3.94% | $40.05M |
| Venbio partners | 4.53M | 3.62% | $127.43M |
| Foresite capital management vi | 4.25M | 3.40% | $119.53M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Ayurmaya capital management company, lp | 15.14M | 100.00% | $426.03M |
| Foresite capital management v | 5.90M | 45.81% | $165.94M |
| Venbio partners | 4.53M | 24.53% | $127.43M |
| Foresite capital management vi | 4.25M | 18.60% | $119.53M |
| Tybourne capital management (hk) | 1.40M | 18.05% | $5.58M |
| Samsara biocapital | 6.35M | 14.67% | $178.55M |
| Saturn v capital management | 2.92M | 11.76% | $82.04M |
| Octagon capital advisors lp | 2.83M | 7.16% | $79.66M |
| Trium capital llp | 390.27K | 6.76% | $10.98M |
| Yu fan | 252.67K | 6.59% | $7.11M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Fmr | 6.77M | 0.01% | 5.80M |
| Janus henderson group | 2.10M | 0.02% | 2.10M |
| Price t rowe associates inc /md/ | 5.20M | 0.01% | 1.91M |
| Novo | 1.10M | 1.80% | 1.10M |
| Blackrock funding, inc. /de | 8.22M | 0.00% | 1.05M |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Ubs group | 951.80K | 0.00% | -2.10M |
| Madison avenue partners, lp | 417.78K | 0.10% | -1.42M |
| Bml capital management | - | - | -1.21M |
| Velan capital investment management lp | - | - | -946.68K |
| Tang capital management | 1.17M | 0.18% | -829.79K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Janus henderson group | 2.10M | 0.02% | 2.10M | $46.15M |
| Novo | 1.10M | 1.80% | 1.10M | $30.95M |
| Sixth street partners management company | 700.13K | 0.00% | 700.13K | $19.70M |
| Woodline partners lp | 486.05K | 0.04% | 486.05K | $13.68M |
| Macquarie management | 134.85K | 0.01% | 134.85K | $3.79M |
Sold Out
| Holder | Change |
|---|---|
| Principal securities | -36.00 |
| Advisory services network | -55.00 |
| Glenmede investment management, lp | -78.00 |
| Rise advisors | -103.00 |
| Quadrant capital group | -113.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Jun 30, 2026 | 209 | -0.95% | 118,723,565 | 3.61% | 94 | 1.13% | 107 | -30.07% | 60 | 81.82% |
| Mar 31, 2026 | 109 | -22.70% | 27,179,654 | -65.63% | 25 | 0.45% | 84 | 6.33% | 15 | -55.88% |
| Dec 31, 2025 | 92 | -32.35% | 52,672,091 | -32.47% | 50 | 0.90% | 50 | -28.57% | 21 | -32.26% |
| Sep 30, 2025 | 39 | -66.09% | 11,785,940 | -84.82% | 15 | 0.15% | 22 | -77.55% | 6 | 200.00% |
| Jun 30, 2025 | 121 | 68.06% | 78,309,349 | 94.78% | 102 | 1.87% | 102 | 104.00% | 2 | -50.00% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| Vanguard Total Stock Mkt Idx Inv | 3.14M | 2.46% | 130.94K |
| Vanguard Morn Total Stk Mkt Idx Investor | 3.14M | 2.46% | 130.94K |
| Vanguard MStar Total Stk Mkt Idx Invest | 3.15M | 2.45% | 11.96K |
| iShares Russell 2000 ETF | 2.01M | 1.58% | -35.71K |
| HBM Healthcare Investments AG Ord | 1.58M | 1.24% | - |
| T. Rowe Price New Horizons | 1.37M | 1.07% | 470.50K |
| US Small-Cap Growth II Equity Comp | 1.37M | 1.07% | 702.70K |
| T. Rowe Price Integrated US SmCapGrEq | 1.09M | 0.85% | 759.20K |
| T. Rowe Price Integrated US Sm Gr Eq | 1.09M | 0.85% | 721.10K |
| Vanguard Institutional Extnd Mkt Idx Tr | 982.31K | 0.76% | 5.47K |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Sep 08, 2026 | AKKARAJU SRINIVAS | - | Buy | $2.90M |
| Sep 08, 2026 | AKKARAJU SRINIVAS | - | Sell | $507.02K |
| Sep 08, 2026 | AKKARAJU SRINIVAS | - | Buy | $2.90M |
| Sep 04, 2026 | AKKARAJU SRINIVAS | - | Buy | $2.46M |
| Sep 04, 2026 | AKKARAJU SRINIVAS | - | Buy | $2.46M |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2026 Q3 | 4 | 9 |
| 2026 Q2 | - | - |
| 2026 Q1 | 7 | - |
| 2025 Q4 | 29 | - |
| 2025 Q3 | - | - |
ALMS Ownership FAQ
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