Latest Period
Q1 2026
Security Snapshot
ALUMIS INC. - Common Stock, $0.0001 par value per share (ALMS) Institutional Ownership
CUSIP: 022307102
13F Institutional Holders and Ownership History from Q2 2024 to Q1 2026
Institutions Reporting
193
Shares (Excl. Options)
99,368,255
Price
$22.03
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- Security type / class
- Equity / Common Stock, $0.0001 par value per share
- Symbol
- ALMS on Nasdaq
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 99,368,255
- Total 13F value
- $2,187,300,329
- Portfolio coverage rank
- 0.02%
- Share change
- +34,415,446
- Value change
- +$771,560,759
- Number of holders
- 193
- Shares outstanding
- 123,110,953
- SEC-reported price per share
- $24.86
- Insider filing price
- $24.86
Latest holder snapshot
5 signals
Issuer context
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- ALMS - ALUMIS INC. - Common Stock, $0.0001 par value per share is tracked under CUSIP 022307102.
- 193 institutions reported positions in Q1 2026.
- 5 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 132 to 193 between Q4 2025 and Q1 2026.
- SEC-reported value moved from $770,079,479 to $2,187,300,329.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC Evidence
Latest holder context comes from 193 institutions filings for Q1 2026.
Security key
022307102
Latest holder period
Q1 2026
13F holders
193
13D/G owners
5
CIK / CUSIP context first
Open Q1 2026 holders
ALMS full holder history
ALUMIS INC. SEC filings
ALUMIS INC. company facts
ALUMIS INC. insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 022307102:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
5
Security
ALMS
| 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 | 16% | -29% | $65,554,931 | +$19,457,899 | 15,139,707 | +42% | AyurMaya Capital Management Company, LP | 21 May 2025 |
| Deep Track Capital, LP | 6% | $162,185,631 | 7,362,035 | Deep Track Capital, LP | 30 Mar 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 31 Mar 2026, 193 institutional investors reported holding 99,368,255 shares of ALUMIS INC. - Common Stock, $0.0001 par value per share (ALMS). This represents 81% of the company’s total 123,110,953 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
63%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| BlackRock, Inc. | 5.8% | 7,170,868 | +57% | 0% | $157,974,221 |
| Deep Track Capital, LP | 5.5% | 6,772,595 | 3.1% | $149,200,268 | |
| SAMSARA BIOCAPITAL, LLC | 5.2% | 6,345,219 | +10% | 14% | $139,785,175 |
| Foresite Capital Management V, LLC | 4.8% | 5,896,995 | +2% | 48% | $129,910,800 |
| venBio Partners LLC | 3.7% | 4,528,408 | -2% | 36% | $99,760,828 |
| Foresite Capital Management VI LLC | 3.5% | 4,247,670 | 0% | 20% | $93,576,170 |
| VANGUARD CAPITAL MANAGEMENT LLC | 3.3% | 4,032,266 | 0% | 0% | $88,830,820 |
| Cormorant Asset Management, LP | 3.2% | 3,949,241 | +8.6% | 4.4% | $87,001,779 |
| Nextech Invest, Ltd. | 2.9% | 3,540,998 | +21% | 5.5% | $78,008,186 |
| PRICE T ROWE ASSOCIATES INC /MD/ | 2.7% | 3,286,753 | +6418% | 0.01% | $72,408,000 |
| Saturn V Capital Management LP | 2.6% | 3,202,075 | +2.1% | 13% | $70,541,712 |
| UBS Group AG | 2.5% | 3,054,865 | +2580% | 0.01% | $67,298,676 |
| Octagon Capital Advisors LP | 2.3% | 2,830,700 | +12% | 6.9% | $62,360,321 |
| MPM BIOIMPACT LLC | 1.9% | 2,386,529 | -0.64% | 4.1% | $52,575,234 |
| JANUS HENDERSON GROUP PLC | 1.7% | 2,124,408 | 0.02% | $46,790,086 | |
| BAKER BROS. ADVISORS LP | 1.6% | 2,012,500 | +29% | 0.25% | $44,335,375 |
| SR One Capital Management, LP | 1.6% | 1,959,896 | 0% | 4.7% | $43,176,509 |
| GEODE CAPITAL MANAGEMENT, LLC | 1.6% | 1,918,415 | +29% | 0% | $42,273,719 |
| STATE STREET CORP | 1.5% | 1,801,812 | +43% | 0% | $39,693,918 |
| Invesco Ltd. | 1.2% | 1,511,537 | +258% | 0.01% | $33,299,161 |
| Ikarian Capital, LLC | 0.99% | 1,213,548 | 3.8% | $26,734,462 | |
| MARSHALL WACE, LLP | 0.95% | 1,172,749 | +214% | 0.03% | $25,835,661 |
| Weiss Asset Management LP | 0.89% | 1,097,417 | 0.45% | $24,176,097 | |
| PRINCIPAL FINANCIAL GROUP INC | 0.86% | 1,058,051 | 0.01% | $23,308,865 | |
| FMR LLC | 0.79% | 973,782 | +3960% | 0% | $21,452,419 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
8
Latest
Q1 2026
Rows shown
1-8 of 8
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q1 | 99,368,255 | $2,187,300,329 | +$771,560,759 | $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 |