Alumis Inc.

NasdaqGS:ALMS Stock Report

Market Cap: US$3.1b

Alumis Ownership

Who are the major shareholders and have insiders been buying or selling?

Recent Insider Transactions

NasdaqGS:ALMS Recent Insider Transactions by Companies or Individuals
DateValueNameEntityRoleSharesMax Price
03 Aug 26SellUS$86,546John SchroerIndividual3,282US$26.37
03 Aug 26SellUS$67,824Mark BradleyIndividual2,572US$26.37
03 Aug 26SellUS$64,527Jorn DrappaIndividual2,447US$26.37
03 Aug 26SellUS$70,988Roy HardimanIndividual2,692US$26.37
03 Aug 26SellUS$68,457David GoldsteinIndividual2,596US$26.37
03 Aug 26SellUS$35,969Sanam PangaliIndividual1,364US$26.37
09 Jan 26BuyUS$9,999,995Samsara BioCapital LLCCompany588,235US$17.00
08 Jan 26BuyUS$6,999,988Foresite Capital Management, LLCCompany411,764US$17.00
05 Dec 25BuyUS$1,833,760Samsara BioCapital LLCCompany186,377US$10.73
04 Dec 25BuyUS$2,039,901Samsara BioCapital LLCCompany262,027US$8.18
01 Dec 25BuyUS$1,310,677Samsara BioCapital LLCCompany173,589US$7.64
21 Nov 25BuyUS$532,925Foresite Capital Management, LLCCompany72,212US$7.38
20 Nov 25BuyUS$905,350Samsara BioCapital LLCCompany125,743US$7.20
20 Nov 25BuyUS$940,558Samsara BioCapital LLCCompany125,743US$7.48
19 Nov 25BuyUS$3,094,725Foresite Capital Management, LLCCompany507,874US$6.56
19 Nov 25BuyUS$1,529,865Samsara BioCapital LLCCompany241,338US$6.56
13 Nov 25SellUS$176,669Samsara BioCapital LLCCompany33,460US$5.28

Insider Trading Volume

Insider Buying: ALMS insiders have only sold shares in the past 3 months.

Ownership Breakdown

What is the ownership structure of ALMS?
Owner TypeNumber of SharesOwnership Percentage
Individual Insiders723,6600.559%
VC/PE Firms9,181,3287.09%
General Public10,503,2308.11%
Hedge Funds15,139,70711.7%
Institutions93,887,31472.5%

Dilution of Shares: Shareholders have been diluted in the past year, with total shares outstanding growing by 24.4%.

Top Shareholders

Top 25 shareholders own 75.73% of the company
OwnershipNameSharesCurrent ValueChange %Portfolio %
11.7%
Matrix Capital Management Company, LP
15,139,707US$365.9m0%100.0%
7.09%
Foresite Capital Management, LLC
9,181,328US$221.9m-38.9%14.43%
6.35%
BlackRock, Inc.
8,218,151US$198.6m14.6%no data
5.23%
FMR LLC
6,769,043US$163.6m595%0.01%
4.9%
Deep Track Capital, LP
6,348,558US$153.4m-6.26%1.99%
4.9%
Samsara BioCapital LLC
6,345,219US$153.4m0%11.49%
4.02%
T. Rowe Price Group, Inc.
5,199,838US$125.7m58.2%0.01%
3.73%
Vanguard Capital Management, LLC
4,827,713US$116.7m5.88%no data
3.5%
venBio LLC
4,528,408US$109.5m0%15.78%
2.74%
Nextech Invest Ltd.
3,540,998US$85.6m0%3.55%
2.54%
Cormorant Asset Management, LP
3,285,596US$79.4m-16.8%3.58%
2.25%
Saturn V Capital Management LP
2,915,443US$70.5m-8.95%8.47%
2.19%
Octagon Capital Advisors LP
2,830,700US$68.4m0%6.13%
1.82%
Janus Henderson Group Ltd.
2,355,122US$56.9m10.9%0.02%
1.69%
State Street Investment Management
2,187,266US$52.9m21.4%no data
1.68%
Geode Capital Management, LLC
2,168,517US$52.4m13%no data
1.56%
MPM BioImpact LLC
2,019,020US$48.8m-15.4%2.77%
1.55%
Baker Bros. Advisors LP
2,012,500US$48.6m0%0.22%
1.51%
SR One Capital Management, LP
1,959,896US$47.4m0%4.42%
0.85%
Novo Holdings A/S
1,100,000US$26.6m0%0.04%
0.83%
Principal Global Investors, LLC
1,068,060US$25.8m0.95%0.01%
0.82%
Invesco Ltd.
1,067,723US$25.8m-6.84%0.01%
0.82%
UBS Asset Management AG
1,063,925US$25.7m-66.1%no data
0.75%
D. E. Shaw & Co., L.P.
968,234US$23.4m69.2%0.02%
0.71%
Vanguard Portfolio Management, LLC
921,211US$22.3m29.3%no data

Company Analysis and Financial Data Status

DataLast Updated (UTC time)
Company Analysis2026/08/23 02:23
End of Day Share Price 2026/08/21 00:00
Earnings2026/06/30
Annual Earnings2025/12/31

Data Sources

The data used in our company analysis is from S&P Global Market Intelligence LLC. The following data is used in our analysis model to generate this report. Data is normalised which can introduce a delay from the source being available.

PackageDataTimeframeExample US Source *
Company Financials10 years
  • Income statement
  • Cash flow statement
  • Balance sheet
Analyst Consensus Estimates+3 years
  • Forecast financials
  • Analyst price targets
Market Prices30 years
  • Stock prices
  • Dividends, Splits and Actions
Ownership10 years
  • Top shareholders
  • Insider trading
Management10 years
  • Leadership team
  • Board of directors
Key Developments10 years
  • Company announcements

* Example for US securities, for non-US equivalent regulatory forms and sources are used.

Unless specified all financial data is based on a yearly period but updated quarterly. This is known as Trailing Twelve Month (TTM) or Last Twelve Month (LTM) Data. Learn more.

Analysis Model and Snowflake

Details of the analysis model used to generate this report is available on our Github page, we also have guides on how to use our reports and tutorials on Youtube.

Learn about the world class team who designed and built the Simply Wall St analysis model.

Industry and Sector Metrics

Our industry and section metrics are calculated every 6 hours by Simply Wall St, details of our process are available on Github.

Analyst Sources

Alumis Inc. is covered by 11 analysts. 10 of those analysts submitted the estimates of revenue or earnings used as inputs to our report. Analysts submissions are updated throughout the day.

AnalystInstitution
Brian SkorneyBaird
Eric SchmidtCantor Fitzgerald & Co.
Janani SundararajanChardan Capital Markets, LLC