What is ANNX's dilution risk score?

ANNX has a latest available DilutionScore record of 40/100, categorized as medium dilution risk by the DilutionWatch scoring model. DilutionWatch displays SEC filing and dilution indicators for ANNX, including shelf registrations, ATM offerings, warrant exercises, PIPE deals, and reverse split signals when detected in source data.

What SEC filings does DilutionWatch track for ANNX?

DilutionWatch tracks 25 SEC filing types for ANNX including S-3 shelf registrations, 424B prospectuses (ATM offerings), S-1 registration statements, 8-K material events, warrant exercise notices, convertible note agreements, and Form 4 insider transactions. Alerts are delivered via email within minutes of a filing appearing on EDGAR.

How does stock dilution affect ANNX shareholders?

Stock dilution occurs when a company issues new shares, reducing the ownership percentage of existing shareholders. For ANNX, common dilution events include at-the-market (ATM) stock offerings, shelf registration drawdowns, warrant exercises, and convertible note conversions. Each event increases the share count and can pressure the stock price lower.

Is DilutionWatch free for ANNX tracking?

DilutionWatch provides a free tier that shows DilutionScores and basic filing history for ANNX. Premium plans ($19.95/month Basic, $39.95/month Premium) unlock real-time email alerts, the full Pulse™ feed, advanced dilution forecasts, and access to all 10,000+ tracked tickers.

ANNX Dilution Risk Score: 40/100 (component-limited)

Score Breakdown

📋 Offering Ability

60

💰 Cash Runway

40

📊Float Risk—

⚠️ Warrant Exposure

40

🔄 Convertible Debt

40

Dilution Forecast

☀️

Clear

No significant dilution signals

model est. 0%

No significant dilution signals detected for ANNX.

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Market Data

Market Cap$888.03M

Shares Outstanding38.56M

FloatN/A

Cash$199.27M

Debt$25.43M

Short InterestN/A

Institutional Holdings

QoQ: ↑ 27.0% shares (2026Q1 vs prior)

218 institutional holders · 177.09M shares

#1 Redmile Group, LLC 14.55M shares

#2 VANGUARD CAPITAL MANAGEMENT LLC 11.91M shares

#3 BlackRock, Inc. 10.94M shares

+ 17 more holders Sign up free to view →

Institutional holder totals are aggregated from ownership filings and may use a different share basis or reporting date than public float. They are not a reconciliation against tradeable float.

Short Interest

Short Interest30.77M

Days to Cover10.4

% of FloatN/A

FINRA data as of Jul 31, 2026

Insider Buy/Sell Ratio

Recent SEC Activity

xbrl XBRL CONVERTIBLE 2020-12-31

4 INSIDER TRANSACTION 2026-03-12

4 INSIDER TRANSACTION 2026-03-04

Full SEC filing analysis available with free account →

Recent News

No recent news

Factual ANNX Dilution Snapshot

Annexon, Inc. (ANNX) has a DilutionScore of 40/100, rated Medium dilution risk. Score date: August 28, 2026.

Recent SEC activity tracked for ANNX: 4 on 2026-03-12; 4 on 2026-03-04; 4 on 2026-03-04.
Score coverage note: Float Risk is excluded because public-float data is unavailable.

This automatically generated snapshot is assembled from stored DilutionWatch data fields and may contain data-source errors or omissions. It is not financial advice, not investment research, and not a recommendation. Do your own research and review the full disclaimer and terms of service.

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Score Coverage Note

Float Risk is excluded because public-float data is unavailable.

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ANNX — Annexon, Inc. Dilution Risk Tracker