Latest Period
Q2 2026
CUSIP: 022307102
Latest Period
Q2 2026
Institutions Reporting
198
Shares (Excl. Options)
118,116,574
Price
$28.14
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Latest holder context comes from 198 institutions filings for Q2 2026.
Security key
022307102
Latest holder period
Q2 2026
13F holders
198
13D/G owners
7
CIK / CUSIP context first
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Open recent reporting periods for CUSIP 022307102:
13D/G owners
Large-stake holder rows connected to Schedule 13D/G evidence.
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| Foresite Capital Fund VI LP | 13% | -10% | $422,163,758 | -$13,341,970 | 15,693,820 | -3.1% | James B. Tananbaum | 01 Apr 2026 |
| AyurMaya Capital Management Company, LP | 12% | -22% | $303,702,522 | 15,139,707 | 0% | AyurMaya Capital Management Company, LP | 14 May 2026 | |
| Deep Track Capital, LP | 6% | $162,185,631 | 7,362,035 | Deep Track Capital, LP | 30 Mar 2026 | |||
| BlackRock, Inc. | 5.7% | $198,935,786 | 7,069,502 | BlackRock, Inc. | 30 Jun 2026 | |||
| FMR LLC | 5.5% | $190,213,677 | 6,769,170 | FMR LLC | 30 Jun 2026 | |||
| Samsara BioCapital, L.P. | 5.4% | +2% | $61,929,972 | +$11,811,946 | 6,345,219 | +24% | Srinivas Akkaraju | 09 Jan 2026 |
| venBio Global Strategic Fund IV, L.P. | 4.8% | $21,297,292 | 4,619,803 | venBio Global Strategic Fund IV, L.P. | 30 Jun 2025 |
As of 30 Jun 2026, 198 institutional investors reported holding 118,116,574 shares of ALUMIS INC. - COMMON STOCK (ALMS). This represents 96% of the company’s total 123,075,818 outstanding shares.
13F concentration
Largest 13F positions for this security by reported shares and value.
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| AyurMaya Capital Management Company, LP | 12% | 15,139,707 | 0% | 100% | $426,031,355 |
| BlackRock, Inc. | 6.7% | 8,218,151 | +15% | 0% | $231,258,771 |
| FMR LLC | 5.5% | 6,769,170 | +595% | 0.01% | $190,484,444 |
| Deep Track Capital, LP | 5.2% | 6,348,558 | -6.3% | 2.6% | $178,648,422 |
| SAMSARA BIOCAPITAL, LLC | 5.2% | 6,345,219 | 0% | 15% | $178,554,463 |
| Foresite Capital Management V, LLC | 4.8% | 5,896,995 | 0% | 46% | $165,941,439 |
| PRICE T ROWE ASSOCIATES INC /MD/ | 4.2% | 5,199,838 | +58% | 0.01% | $146,325,000 |
| venBio Partners LLC | 3.7% | 4,528,408 | 0% | 25% | $127,429,401 |
| Foresite Capital Management VI LLC | 3.5% | 4,247,670 | 0% | 19% | $119,529,434 |
| VANGUARD CAPITAL MANAGEMENT LLC | 3.4% | 4,215,703 | +4.5% | 0% | $118,629,882 |
| Nextech Invest Ltd. | 2.9% | 3,540,998 | 0% | 4.8% | $99,643,684 |
| Cormorant Asset Management, LP | 2.7% | 3,285,596 | -17% | 4.8% | $92,456,671 |
| Saturn V Capital Management LP | 2.4% | 2,915,443 | -9% | 12% | $82,040,566 |
| Octagon Capital Advisors LP | 2.3% | 2,830,700 | 0% | 7.3% | $79,655,898 |
| Jupiter Topco LLC | 1.9% | 2,355,122 | 0% | 0.03% | $66,237,806 |
| STATE STREET CORP | 1.8% | 2,187,266 | +21% | 0% | $61,549,665 |
| GEODE CAPITAL MANAGEMENT, LLC | 1.8% | 2,168,517 | +13% | 0% | $61,033,791 |
| MPM BIOIMPACT LLC | 1.6% | 2,019,020 | -15% | 3.5% | $56,815,223 |
| BAKER BROS. ADVISORS LP | 1.6% | 2,012,500 | 0% | 0.28% | $56,631,750 |
| SR One Capital Management, LP | 1.6% | 1,959,896 | 0% | 5.3% | $55,151,473 |
| Invesco Ltd. | 0.95% | 1,173,518 | -22% | 0% | $33,022,796 |
| NOVO HOLDINGS A/S | 0.89% | 1,100,000 | 1.8% | $30,954,000 | |
| PRINCIPAL FINANCIAL GROUP INC | 0.87% | 1,068,060 | +0.95% | 0.01% | $30,055,208 |
| JPMORGAN CHASE & CO | 0.79% | 969,617 | +13% | 0% | $26,407,356 |
| D. E. Shaw & Co., Inc. | 0.79% | 968,234 | +69% | 0.02% | $27,246,105 |
Quarter history
Holder count, reported shares/value, and median price by quarter.
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q2 | 118,116,574 | $3,322,016,609 | +$104,109,206 | $28.14 | 198 |
| 2026 Q1 | 114,507,712 | $2,520,822,473 | +$771,555,180 | $22.03 | 193 |
| 2025 Q4 | 78,901,192 | $770,079,479 | +$72,305,373 | $9.76 | 132 |
| 2025 Q3 | 77,994,182 | $311,197,950 | -$66,383 | $3.99 | 129 |
| 2025 Q2 | 78,328,492 | $234,986,451 | +$114,158,793 | $3.00 | 112 |
| 2025 Q1 | 40,203,252 | $246,848,226 | -$2,907,402 | $6.14 | 72 |
| 2024 Q4 | 40,261,542 | $316,456,858 | +$6,196,390 | $7.86 | 64 |
| 2024 Q3 | 35,212,710 | $376,073,647 | +$60,319,979 | $10.68 | 52 |
| 2024 Q2 | 28,575,030 | $380,047,605 | +$380,047,605 | $13.30 | 29 |