What is IONS's dilution risk score?

IONS currently has a DilutionScore of 18/100, indicating low dilution risk. DilutionWatch monitors IONS SEC filings in real-time, scanning EDGAR every 60 seconds for shelf registrations, ATM offerings, warrant exercises, PIPE deals, and reverse split signals.

What SEC filings does DilutionWatch track for IONS?

DilutionWatch tracks 25 SEC filing types for IONS 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 IONS shareholders?

Stock dilution occurs when a company issues new shares, reducing the ownership percentage of existing shareholders. For IONS, 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 IONS tracking?

DilutionWatch provides a free tier that shows DilutionScores and basic filing history for IONS. 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.

IONS Dilution Risk Score: 18/100 (LOW)

📊 Score Breakdown

📋 Offering Ability

20

💰 Cash Runway

25

📊 Float Risk

7

⚠️ Warrant Exposure

15

🔄Convertible Debt—

🌦️ Dilution Forecast

☀️

Clear

No significant dilution signals

0%

No significant dilution signals detected for IONS.

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💹 Market Data

Market Cap$12.64B

Shares Outstanding165.26M

Float163.98M

Cash$1.92B

Debt$1.76B

Short InterestN/A

🏛 Institutional Holdings

QoQ: ↑ 7.8% shares (2026Q1 vs prior)

496 institutional holders · 196.83M shares

#1 FMR LLC 24.56M shares

#2 Capital World Investors 21.19M shares

#3 VANGUARD CAPITAL MANAGEMENT LLC 14.24M shares

+ 17 more holders Sign up free to view →

📉 Short Interest

Short Interest17.43M

Days to Cover7.3

% of Float10.6%

FINRA data as of Jun 30, 2026

👤 Insider Buy/Sell Ratio

📁 Recent SEC Activity

xbrl XBRL WARRANT Jul 07, 2026

xbrl XBRL CONVERTIBLE Dec 31, 2024

4 INSIDER TRANSACTION Apr 17, 2026

Full SEC filing analysis available with free account →

📰 Recent News

No recent news

📋 What This Means for IONS Shareholders

Ionis Pharmaceuticals, Inc. (IONS) has a DilutionScore of 18/100, rated Low dilution risk. At this score level, DilutionWatch's real-time EDGAR monitoring shows limited near-term dilution signals. This does not mean zero dilution risk — shelf registrations can be filed and activated quickly — but the current filing profile shows no major outstanding dilution programs. Score as of July 14, 2026.

DilutionWatch tracks 4.2M outstanding warrants for IONS. Warrants become dilutive when exercised — converting to common shares at the strike price. Warrants near or in-the-money deserve particular attention since exercise can add materially to the outstanding share count within a short window.

DilutionWatch tracks over 25 SEC filing types for IONS in real-time, scanning EDGAR every 60 seconds. The DilutionWatch screener shows real-time score changes for IONS alongside comparable low-risk stocks. Not financial advice — this analysis is for informational purposes only.

Warrants Explained →