Alumis Inc.

NasdaqGS:ALMS Stock Report

Market Cap: US$1.2b

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
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$940,558Samsara BioCapital LLCCompany125,743US$7.48
20 Nov 25BuyUS$905,350Samsara BioCapital LLCCompany125,743US$7.20
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
06 May 25BuyUS$202,300Foresite Capital Management, LLCCompany45,000US$4.62
05 May 25BuyUS$1,477,312Samsara BioCapital LLCCompany320,290US$5.27
02 Apr 25BuyUS$129,544Alan ColowickIndividual18,404US$7.49
01 Apr 25BuyUS$100,733Martin BablerIndividual15,650US$6.44

Insider Trading Volume

Insider Buying: Insufficient data to determine if insiders have bought more shares than they have sold in the past 3 months.

Ownership Breakdown

What is the ownership structure of ALMS?
Owner TypeNumber of SharesOwnership Percentage
Individual Insiders663,2180.635%
General Public10,696,29410.2%
VC/PE Firms21,348,64720.5%
Hedge Funds21,765,31120.8%
Institutions49,919,93347.8%

Dilution of Shares: Shareholders have been substantially diluted in the past year, with total shares outstanding growing by 91.9%.

Top Shareholders

Top 25 shareholders own 81.01% of the company
OwnershipNameSharesCurrent ValueChange %Portfolio %
20.9%
Matrix Capital Management Company, LP
21,765,311US$248.8m0%64.69%
15.1%
Foresite Capital Management, LLC
15,778,040US$180.3m3.82%22.67%
5.34%
Samsara BioCapital LLC
5,570,607US$63.7m16%6.34%
4.43%
venBio LLC
4,619,803US$52.8m0%23.53%
4.02%
BlackRock, Inc.
4,193,077US$47.9m0.42%no data
3.86%
The Vanguard Group, Inc.
4,029,615US$46.1m18.4%no data
2.99%
Trium Capital Managers Ltd
3,122,111US$35.7m17.9%16.69%
2.79%
Nextech Invest Ltd.
2,915,998US$33.3m0%3.18%
2.06%
Cormorant Asset Management, LP
2,147,396US$24.5m0%1.22%
2.03%
Baker Bros. Advisors LP
2,121,803US$24.3m0%0.12%
1.88%
SR One Capital Management, LP
1,959,896US$22.4m0%2.74%
1.85%
OrbiMed Advisors LLC
1,926,423US$22.0m0%0.28%
1.68%
Woodline Partners LP
1,751,150US$20.0m810%0.09%
1.34%
Tybourne Capital Management (HK) Ltd.
1,399,250US$16.0m0%29.65%
1.33%
Geode Capital Management, LLC
1,393,286US$15.9m19.3%no data
1.24%
General Atlantic Service Company, L.P.
1,297,530US$14.8m0%0.28%
1.22%
HBM Partners Ltd.
1,278,298US$14.6m0%1.15%
1.16%
BML Capital Management, LLC
1,210,415US$13.8m0%9.07%
1.12%
Tang Capital Management, LLC
1,167,009US$13.3m-41.6%0.39%
1.06%
State Street Global Advisors, Inc.
1,101,886US$12.6m-0.65%no data
0.91%
Velan Capital Partners LP
946,683US$10.8m-41.6%6.49%
0.76%
Ally Bridge Group
789,618US$9.0m0%3.07%
0.73%
UBS Asset Management AG
762,675US$8.7m-36.8%no data
0.64%
Opaleye Management Inc.
665,000US$7.6m-14.2%0.91%
0.63%
Omega Fund Management, LLC
653,223US$7.5m0%2.22%

Company Analysis and Financial Data Status

DataLast Updated (UTC time)
Company Analysis2025/12/10 22:12
End of Day Share Price 2025/12/09 00:00
Earnings2025/09/30
Annual Earnings2024/12/31

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 8 analysts. 8 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.
Yatin SunejaGuggenheim Securities, LLC