Annexon, Inc.

NasdaqGS:ANNX Stock Report

Market Cap: US$724.4m

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
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$2,879Ted YednockIndividual1,116US$2.58
14 Jul 25SellUS$2,226Michael OverdorfIndividual853US$2.61
18 Feb 25SellUS$24,284Ted YednockIndividual8,345US$2.91
18 Feb 25SellUS$20,183Jennifer LewIndividual6,912US$2.92
18 Feb 25SellUS$19,523Michael OverdorfIndividual6,618US$2.95
18 Feb 25SellUS$16,380Dean ArtisIndividual5,515US$2.97
18 Feb 25SellUS$16,342Jamie DananbergIndividual5,521US$2.96
13 Feb 25SellUS$5,331Ted YednockIndividual1,783US$2.99
13 Feb 25SellUS$5,322Jennifer LewIndividual1,786US$2.98
13 Feb 25SellUS$4,261Michael OverdorfIndividual1,425US$2.99
13 Feb 25SellUS$14,812Douglas LoveIndividual5,021US$2.95

Insider Trading Volume

Insider Buying: ANNX 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
Private Companies40,3890.0271%
Individual Insiders1,510,1901.01%
VC/PE Firms8,921,3975.99%
General Public36,870,19824.7%
Institutions101,713,70568.2%

Dilution of Shares: Shareholders have been substantially diluted in the past year, with total shares outstanding growing by 39.8%.

Top Shareholders

Top 25 shareholders own 60.93% of the company
OwnershipNameSharesCurrent ValueChange %Portfolio %
7.43%
FMR LLC
11,081,091US$53.9m-29.4%no data
5.99%
Alerce Investment Management L.P.
8,921,397US$43.4m47.1%84.13%
5.3%
BlackRock, Inc.
7,899,008US$38.4m-0.8%no data
4.7%
BVF Partners L.P.
7,000,000US$34.0m0%0.89%
4.23%
Redmile Group, LLC
6,300,644US$30.6m0%1.88%
3.91%
The Vanguard Group, Inc.
5,835,112US$28.4m8.74%no data
3.52%
Bain Capital Life Sciences Investors, LLC
5,249,069US$25.5m0%1.25%
3.46%
Bellevue Asset Management AG
5,157,290US$25.1m0%0.3%
2.02%
Morgan Stanley
3,008,464US$14.6m271%no data
1.89%
Millennium Management LLC
2,822,823US$13.7m12.3%0.01%
1.77%
Woodline Partners LP
2,638,275US$12.8m150%0.05%
1.74%
Opaleye Management Inc.
2,600,000US$12.6m0%1.5%
1.7%
Candriam, Société En Commandite Par Actions
2,534,230US$12.3m0%0.03%
1.63%
Geode Capital Management, LLC
2,436,944US$11.8m6.66%no data
1.47%
Columbia Management Investment Advisers, LLC
2,192,354US$10.7m1.21%no data
1.42%
Polygon Global Partners LLP
2,112,455US$10.3m-24.8%1.37%
1.38%
State Street Global Advisors, Inc.
2,050,308US$10.0m3.5%no data
1.2%
Sphera Funds Management Ltd
1,794,387US$8.7m1.7%1.19%
1.01%
Deutsche Asset & Wealth Management
1,504,349US$7.3m194%no data
1.01%
Adage Capital Management, L.P.
1,500,000US$7.3m0%0.01%
0.96%
The Goldman Sachs Group, Inc.
1,433,235US$7.0m10.4%no data
0.87%
Balyasny Asset Management L.P.
1,297,260US$6.3m0%0.01%
0.86%
Bank of America Corporation
1,280,299US$6.2m-11.2%no data
0.74%
J. Goldman & Co., L.P.
1,107,001US$5.4m0%0.19%
0.72%
Mutual of America Capital Management LLC
1,066,932US$5.2m-1.11%0.04%

Company Analysis and Financial Data Status

DataLast Updated (UTC time)
Company Analysis2025/12/10 09:54
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

Annexon, Inc. is covered by 11 analysts. 7 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.