Annexon, Inc.

NasdaqGS:ANNX Stock Report

Market Cap: US$894.6m

Annexon Ownership

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

Recent Insider Transactions

NasdaqGS:ANNX Recent Insider Transactions by Companies or Individuals
DateValueNameEntityRoleSharesMax Price
28 May 26BuyUS$3,319,019Alerce Investment Management L.P.Company613,497US$5.41
02 Mar 26SellUS$30,168Ted YednockIndividual5,566US$5.42
02 Mar 26SellUS$32,004Dean ArtisIndividual5,894US$5.43
02 Mar 26SellUS$31,603Jamie DananbergIndividual5,820US$5.43
02 Mar 26SellUS$23,517Michael OverdorfIndividual4,339US$5.42
02 Mar 26SellUS$30,162Jennifer LewIndividual5,565US$5.42
18 Feb 26SellUS$40,149Ted YednockIndividual7,857US$5.11
18 Feb 26SellUS$31,748Michael OverdorfIndividual6,225US$5.10
18 Feb 26SellUS$26,979Dean ArtisIndividual5,290US$5.10
18 Feb 26SellUS$26,979Jamie DananbergIndividual5,290US$5.10
18 Feb 26SellUS$40,119Jennifer LewIndividual7,851US$5.11
01 Dec 25BuyUS$138,270Jung ChoiIndividual33,000US$4.19
21 Nov 25BuyUS$3,600,784Alerce Investment Management L.P.Company822,613US$4.48
19 Nov 25BuyUS$5,055,000Alerce Investment Management L.P.Company1,500,000US$3.94
14 Jul 25SellUS$2,882Jennifer LewIndividual1,117US$2.58
14 Jul 25SellUS$2,226Michael OverdorfIndividual853US$2.61
14 Jul 25SellUS$2,879Ted YednockIndividual1,116US$2.58

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 ANNX?
Owner TypeNumber of SharesOwnership Percentage
Individual Insiders1,700,9341.01%
VC/PE Firms9,534,8945.69%
Hedge Funds23,247,94113.9%
Institutions133,184,79179.4%

Dilution of Shares: Shareholders have been substantially diluted in the past year, with total shares outstanding growing by 49.3%.

Top Shareholders

Top 25 shareholders own 78.7% of the company
OwnershipNameSharesCurrent ValueChange %Portfolio %
8.88%
Redmile Group, LLC
14,549,768US$79.4m44.8%3.88%
6.68%
BlackRock, Inc.
10,938,509US$59.7m22.1%no data
6.49%
FMR LLC
10,635,576US$58.1m4.04%no data
5.82%
Alerce Investment Management L.P.
9,534,894US$52.1m6.88%89.29%
5.31%
BVF Partners L.P.
8,698,173US$47.5m-4.71%1.16%
4.22%
State Street Global Advisors, Inc.
6,919,255US$37.8m48.7%no data
3.64%
Vanguard Capital Management, LLC
5,956,589US$32.5m0%no data
3.18%
Bain Capital Life Sciences Investors, LLC
5,212,674US$28.5m-0.69%1.9%
3.15%
Bellevue Asset Management AG
5,157,290US$28.2m0%0.49%
2.88%
MAK Capital One, LLC
4,724,043US$25.8m59.7%3.03%
2.62%
Adage Capital Management, L.P.
4,300,000US$23.5m-21.8%0.03%
2.57%
Bank of America Corporation
4,206,398US$23.0m169%0.01%
2.55%
Teachers Insurance and Annuity Association-College Retirement Equities Fund
4,172,424US$22.8m43.8%no data
2.42%
Artal Group S.A.
3,958,646US$21.6m0%0.32%
2.37%
Balyasny Asset Management L.P.
3,886,909US$21.2m17.8%0.04%
2.11%
Columbia Management Investment Advisers, LLC
3,449,121US$18.8m-20.7%no data
2.06%
Geode Capital Management, LLC
3,377,823US$18.4m16.4%no data
1.9%
Qube Research & Technologies Ltd
3,114,314US$17.0m30.8%0.02%
1.8%
Palo Alto Investors LP
2,948,090US$16.1m23.7%2.21%
1.64%
Morgan Stanley
2,684,106US$14.7m-5.09%no data
1.53%
Great Point Partners, LLC
2,500,000US$13.7m0%2.79%
1.43%
Woodline Partners LP
2,337,137US$12.8m-41.6%0.04%
1.42%
Opaleye Management Inc.
2,331,761US$12.7m-10.3%1.21%
1.14%
Point72 Asset Management, L.P.
1,871,795US$10.2m404%0.02%
0.91%
Vanguard Portfolio Management, LLC
1,483,090US$8.1m0%no data

Company Analysis and Financial Data Status

DataLast Updated (UTC time)
Company Analysis2026/07/06 08:29
End of Day Share Price 2026/07/06 00:00
Earnings2026/03/31
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

Annexon, Inc. is covered by 13 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
Tazeen AhmadBofA Global Research
Thomas ShraderBTIG
Pete StavropoulosCantor Fitzgerald & Co.