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Annexon, Inc. (NASDAQ:ANNX)

US · Delayed Price · Currency is USD
4.01+0.37 (+10.16%)
 
Market Cap657.01M+28.5%
Revenue (ttm)0
Net Income-202.67M-8.4%
EPS-1.16+10.1%
Shares Out163.84M
PE Ration/a
Forward PEn/a
Dividendn/a
Ex-Dividend Daten/a
Volume5,071,706
Open3.86
Previous Close3.64
Day's Range3.73 - 4.08
52-Week Range2.54 - 7.18
Beta1.22
AnalystsBuy
Price Target10.50(+161.85%)
Earnings DateNov 9, 2026
Insider Score
/ 100
ANNX Insider Score

Annexon, Inc. has a live Insider Score.

Scored on 1 qualifying trade from 1 insider in the last 90 days.

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About ANNX

Annexon, Inc. is a biopharmaceutical company currently engaged in clinical trials, dedicated to the discovery and advancement of therapies for a variety of autoimmune, neurodegenerative, and ophthalmic conditions. Central to its approach is the C1q molecule, which initiates the classical complement pathway. The company targets this pathway to address specific disease mechanisms, such as those seen in antibody-mediated autoimmune disorders and complement-driven neurodegeneration. The company's developmental pipeline features several promising candidates. ANX005, a monoclonal antibody, is in advanced clinical testing, undergoing Phase II/III trials for Guillain-Barré syndrome, as well as Phase II trials for warm autoimmune hemolytic anemia, Huntington's disease, and amyotrophic lateral sclerosis. Another candidate, ANX009, is currently in Phase Ib studies for lupus nephritis. Additionally, ANX007 is progressing through Phase II clinical trials for the treatment of geographic atrophy, an eye disease. Further investigational assets include ANX105, a monoclonal antibody being developed for neurodegenerative indications, and ANX1502, an oral small molecule under investigation for specific autoimmune conditions. Annexon, Inc. was established in 2011 and operates from its headquarters in Brisbane, California.

Address
1400 Sierra Point Parkway, Brisbane, CA, 94005, US
Market Cap
657 million
Employees
92
Industrial Classification
Biotechnology

What Are Insiders Doing?

Open-market buy / sell balanceNet Buying
Sold
$313.43K
Bought
$12.41M

View the trades behind this meter — each links to its SEC Form 4 →

Open-market Form 4 purchases (code P) vs sales (code S) on file for this company. Grants, option exercises and tax withholdings are excluded. Informational only.

1 Day
+10.16%
5 Days
-4.07%
1 Month
-19.32%
6 Months
-19.80%
1 Year
+28.53%

$ANNX stock is featured in our Insider Score Rankings, and Insider Trades datasets.

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Recently reported changes in ANNX holdings by institutional investors

Scanning latest 13F filings…

Latest 0 13F filings · Source: SEC EDGAR

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Insider Trading

Quarterly net insider trading by ANNX's directors and management

Net Shares Purchased by Insiders−3M−1.5M02025Q32025Q42026Q12026Q22026Q3

Source: SEC EDGAR (Form 4)

Corporate Lobbying

ANNX Estimated quarterly lobbying spending

Source: U.S. Senate LDA

ANNX Revenue by Segment

$6.69MTotal
SegmentRevenue% of All
Stock-based compensation$4.81M71.92%
Interest and other income, net$1.88M28.08%

As of: Q2 2026 (Jun 30, 2026) · Source: SEC EDGAR (10-Q)

U.S. Patents

New ANNX patent grants

Loading patent grants…

Source: USPTO Open Data Portal

Government Contracts

Estimated quarterly amount awarded to ANNX from public contracts

Source: USAspending.gov

Top ETF Holders

ETFs with the largest estimated holdings in ANNX

ETFEst. Holding Size
VTIVanguard Morningstar Total Stock Market ETF$24.55M
XBIState Street SPDR S&P Biotech ETF$22.27M
IWMiShares Russell 2000 ETF$15.31M
VXFVanguard Extended Market ETF$8.77M
IWOiShares Russell 2000 Growth ETF$5.64M
IBBiShares Biotechnology ETF$4.69M

Estimated from each fund’s disclosed top holdings × AUM

ANNX Insider Score

Our composite score: insider buying, sector, volume, tone & dilution

Members only

The live Insider Score for ANNX is included with Insider Access.

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Bull Case vs Bear Case

AI-generated from ANNX’s recent data — informational, not investment advice

Generating analysis…

Insider Score

Our 0–100 Insider Score and the signals behind it.

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Recent Insider Activity

Buys
14
Sells
10
Buy Value
$12.41M
Distinct Buyers
4

Frequently Asked Questions

Disclaimer — Informational only — not investment advice. Insider transaction data is sourced from SEC Form 4 filings; market data from public feeds and may be delayed. The Insider Score is a proprietary score for research purposes and does not predict future performance. Always do your own research.
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