loading
Ionis Pharmaceuticals Inc stock is traded at $43.82, with a volume of 1.04M. It is up +2.62% in the last 24 hours and down -7.26% over the past month. Ionis Pharmaceuticals is the leading developer of antisense technology to discover and develop novel drugs. Its broad clinical and preclinical pipeline targets a wide variety of diseases, with an emphasis on cardiovascular, metabolic, neurological, and rare diseases. Ionis and Biogen brought Spinraza to market in 2016 as a treatment for spinal muscular atrophy, and Biogen launched ALS drug Qalsody in 2023. Ionis brought two additional drugs to market via its cardiovascular-focused subsidiary Akcea, including ATTR amyloidosis drug Tegsedi (2018) and cardiology drug Waylivra (Europe, 2019). Ionis and AstraZeneca launched polyneuropathy drug Wainua in 2024. Ionis marked its first two independent launches in 2025 for Tryngolza (for FCS) and Dawnzera (for HAE).
See More
Previous Close:
$42.70
Open:
$43.58
24h Volume:
1.04M
Relative Volume:
0.38
Market Cap:
$7.28B
Revenue:
$1.06B
Net Income/Loss:
$-326.58M
P/E Ratio:
-20.84
EPS:
-2.1022
Net Cash Flow:
$-977.73M
1W Performance:
+1.20%
1M Performance:
-7.26%
6M Performance:
-42.96%
1Y Performance:
-39.47%
1-Day Range:
Value
$43.42
$44.71
1-Week Range:
Value
$42.08
$45.72
52-Week Range:
Value
$42.08
$86.74

Ionis Pharmaceuticals Inc Stock (IONS) Company Profile

Name
Name
Ionis Pharmaceuticals Inc
Name
Phone
(760) 931-9200
Name
Address
2855 GAZELLE COURT, CARLSBAD, CA
Name
Employee
1,402
Name
Twitter
@ionispharma
Name
Next Earnings Date
2026-11-04
Name
Latest SEC Filings
Name
IONS's Discussions on Twitter

Compare IONS vs VRTX, MRNA, REGN, ARGX, ONC

Stocks Price Market Cap Revenue Net Income Cash Flow EPS
IONS icon
IONS
Ionis Pharmaceuticals Inc
43.82 7.28B 1.06B -326.58M -977.73M -2.1022
VRTX icon
VRTX
Vertex Pharmaceuticals Inc
508.46 128.88B 12.34B 4.34B 3.71B 16.87
MRNA icon
MRNA
Moderna Inc
237.99 95.01B 2.23B -3.19B -1.60B -8.1462
REGN icon
REGN
Regeneron Pharmaceuticals Inc
800.59 82.42B 14.92B 4.42B 3.79B 41.04
ARGX icon
ARGX
Argen X Se Adr
849.61 53.43B 4.16B 1.29B 734.26M 19.58
ONC icon
ONC
Beone Medicines Ltd Adr
372.06 42.09B 5.76B 514.49M 1.10B 4.4813

Ionis Pharmaceuticals Inc Stock (IONS) Upgrades & Downgrades

Date Action Analyst Rating Change
Aug-19-26 Initiated BMO Capital Markets Market Perform
Jul-16-26 Downgrade Wolfe Research Outperform → Peer Perform
May-19-26 Initiated Citigroup Buy
Apr-21-26 Initiated Canaccord Genuity Buy
Apr-10-26 Resumed Raymond James Outperform
Jan-28-26 Resumed Barclays Overweight
Oct-08-25 Upgrade JP Morgan Neutral → Overweight
Sep-26-25 Upgrade Goldman Sell → Neutral
Sep-03-25 Upgrade BMO Capital Markets Market Perform → Outperform
Jul-31-25 Upgrade Morgan Stanley Equal-Weight → Overweight
Jul-01-25 Upgrade Barclays Equal Weight → Overweight
Apr-07-25 Initiated H.C. Wainwright Buy
Mar-31-25 Initiated Redburn Atlantic Neutral
Aug-02-24 Downgrade BMO Capital Markets Outperform → Market Perform
Jul-24-24 Upgrade Leerink Partners Market Perform → Outperform
Jul-16-24 Resumed Jefferies Buy
Jun-14-24 Upgrade Bernstein Underperform → Mkt Perform
Apr-10-24 Upgrade Wolfe Research Peer Perform → Outperform
Jan-02-24 Upgrade BofA Securities Neutral → Buy
Oct-23-23 Upgrade BofA Securities Underperform → Neutral
Sep-29-23 Initiated Raymond James Strong Buy
Jul-31-23 Upgrade Citigroup Neutral → Buy
Jun-07-23 Resumed Piper Sandler Overweight
May-04-23 Upgrade Citigroup Sell → Neutral
Mar-21-23 Initiated Bernstein Underperform
Dec-21-22 Downgrade Morgan Stanley Overweight → Equal-Weight
Sep-09-22 Resumed Morgan Stanley Overweight
Jul-18-22 Resumed Oppenheimer Outperform
Mar-31-22 Resumed Piper Sandler Overweight
Mar-01-22 Initiated Citigroup Sell
Mar-01-22 Initiated Guggenheim Buy
Feb-01-22 Downgrade BofA Securities Buy → Underperform
Dec-14-21 Upgrade William Blair Mkt Perform → Outperform
May-07-21 Upgrade UBS Sell → Neutral
Mar-01-21 Upgrade Barclays Underweight → Equal Weight
Dec-16-20 Initiated UBS Sell
Dec-15-20 Upgrade Cowen Market Perform → Outperform
Sep-14-20 Resumed JP Morgan Neutral
Sep-02-20 Initiated The Benchmark Company Hold
Jun-01-20 Resumed Oppenheimer Outperform
May-13-20 Initiated RBC Capital Mkts Outperform
Mar-05-20 Initiated Citigroup Buy
Dec-13-19 Initiated Oppenheimer Outperform
Nov-13-19 Initiated BofA/Merrill Buy
Nov-07-19 Downgrade Morgan Stanley Equal-Weight → Underweight
Sep-10-19 Upgrade Bernstein Mkt Perform → Outperform
Aug-08-18 Reiterated Stifel Hold
Aug-07-18 Reiterated Stifel Hold
May-08-18 Downgrade Evercore ISI Outperform → In-line
Oct-06-17 Resumed Goldman Sell
Aug-17-17 Initiated Evercore ISI Outperform
Aug-09-17 Reiterated Stifel Hold
Mar-10-17 Downgrade Goldman Neutral → Sell
Dec-28-16 Reiterated BMO Capital Markets Outperform
Dec-27-16 Reiterated Leerink Partners Mkt Perform
View All

Ionis Pharmaceuticals Inc Stock (IONS) Latest News

pulisher
Oct 08, 2026

NVS Wins FDA Nod for Label Expansion of Immunology Drug Rhapsido - Zacks Investment Research

Oct 08, 2026
pulisher
Oct 05, 2026

Novartis Strengthens RNA Therapeutics Pipeline With $7.8B Abogen Deal - Zacks Investment Research

Oct 05, 2026
pulisher
Oct 01, 2026

Royalty Pharma Owns a Piece of 16 Blockbuster Drugs -- Is the Stock a Buy? - The Motley Fool

Oct 01, 2026
pulisher
Sep 28, 2026

18 of 21 Analysts Still Think Alnylam Stock Is a Buy. Here's Why They're Right. - The Motley Fool

Sep 28, 2026
pulisher
Sep 24, 2026

Ionis Pharmaceuticals (NasdaqGS:IONS) Stock Forecast & Analyst Predictions - Simply Wall Street

Sep 24, 2026
pulisher
Sep 23, 2026

Ionis Delivers Positive Late-Stage Results for Two Partnered Drugs - Zacks Investment Research

Sep 23, 2026
pulisher
Sep 23, 2026

A kidney disease can progress to kidney failure in up to half of patients within 20 years. Ionis' drug met its trial goal. - Stock Titan

Sep 23, 2026
pulisher
Sep 22, 2026

A rare genetic disease drug trial met its main goal. Otsuka plans FDA talks. - Stock Titan

Sep 22, 2026
pulisher
Sep 20, 2026

Investors Dumped Ionis Pharmaceuticals Stock -- But Wall Street Hasn't Budged From Its Bullish Outlook - The Motley Fool

Sep 20, 2026
pulisher
Sep 12, 2026

IONS Stock Heads Toward Biggest Single-Day Slump In Over 5 Years – Retail Calls It ‘Opportunity Of A Lifetime’ - Stocktwits

Sep 12, 2026
pulisher
Sep 11, 2026

Diabetic Retinopathy Market Set for Strong Expansion Through 2036 Amid Rising Investment Interest – DelveInsight | Genentech, Ionis Pharma, AstraZeneca, Regenxbio, AbbVie, Palatin Techn, Avirmax Bio - Barchart.com

Sep 11, 2026
pulisher
Sep 11, 2026

Ionis Has Its First Neurology Launch, But Can Zanvastro Justify Its $285,000 Price? - Yahoo Finance

Sep 11, 2026
pulisher
Sep 11, 2026

Precision Trading with Ionis Pharmaceuticals Inc. (IONS) Risk Zones - Stock Traders Daily

Sep 11, 2026
pulisher
Sep 11, 2026

Rx Rundown: GSK, Novartis, Ionis Pharmaceuticals and more - Medical Marketing and Media

Sep 11, 2026
pulisher
Sep 10, 2026

Ethan Weiss: Two Trial Flops End the "Genetics Is Undefeated" Era in Heart Drugs - finance.biggo.com

Sep 10, 2026
pulisher
Sep 10, 2026

Royalty Pharma (RPRX): Can Downside Protection Offset Pelacarsen’s Phase 3 Failure? - Yahoo Finance

Sep 10, 2026
pulisher
Sep 10, 2026

Ionis at Wells Fargo healthcare conference: launches offset setbacks - investing.com

Sep 10, 2026
pulisher
Sep 10, 2026

Ionis at Wells Fargo healthcare conference: launches offset setbacks By Investing.com - Investing.com Canada

Sep 10, 2026
pulisher
Sep 10, 2026

IONS: Strategic approvals and strong launches drive growth, with pipeline poised for further milestones - TradingView

Sep 10, 2026
pulisher
Sep 09, 2026

Cathie Wood Is Loading Up on Ionis Pharmaceuticals (IONS) Stock. Here's the Bet She's Making. - Yahoo Finance

Sep 09, 2026
pulisher
Sep 09, 2026

Theravance Bio (TBPH) Up 0.8% Since Last Earnings Report: Can It Continue? - Zacks Investment Research

Sep 09, 2026
pulisher
Sep 09, 2026

IONS Maintained by Barclays -- Price Target Lowered to $85.00 - GuruFocus

Sep 09, 2026
pulisher
Sep 09, 2026

Ionis Pharmaceuticals (IONS) Institutional Ownership 2026 $IONS - MarketBeat

Sep 09, 2026
pulisher
Sep 08, 2026

BofA Securities Maintains Ionis Pharmaceuticals(IONS.US) With Buy Rating, Cuts Target Price to $91 - Moomoo

Sep 08, 2026
pulisher
Sep 08, 2026

Raymond James cuts Ionis Pharmaceuticals price target on trial miss - Investing.com

Sep 08, 2026
pulisher
Sep 08, 2026

Raymond James cuts Ionis Pharmaceuticals price target on trial miss By Investing.com - Investing.com Canada

Sep 08, 2026
pulisher
Sep 08, 2026

Raymond James cuts Ionis Pharmaceuticals price target on trial miss By Investing.com - Investing.com India

Sep 08, 2026
pulisher
Sep 08, 2026

Raymond James Maintains Ionis Pharmaceuticals(IONS.US) With Buy Rating, Cuts Target Price to $84 - Moomoo

Sep 08, 2026
pulisher
Sep 08, 2026

Retatrutide clears BLA bar while Wainua stumbles in busy July for trials - BioWorld News

Sep 08, 2026
pulisher
Sep 08, 2026

IONS Maintained by Goldman Sachs -- Price Target Lowered to $56 - GuruFocus

Sep 08, 2026
pulisher
Sep 08, 2026

BMO cuts Ionis Pharmaceuticals stock price target on drug failure By Investing.com - Investing.com Canada

Sep 08, 2026
pulisher
Sep 08, 2026

Amgen drops on Novartis trial setback for heart therapy; BMO downgrades - Seeking Alpha

Sep 08, 2026
pulisher
Sep 08, 2026

BMO cuts Ionis Pharmaceuticals stock price target on drug failure By Investing.com - Investing.com UK

Sep 08, 2026
pulisher
Sep 08, 2026

Ionis Pharmaceuticals gets $85 price target des... - Pluang

Sep 08, 2026
pulisher
Sep 08, 2026

H.C. Wainwright cuts Ionis stock price target to $100 on pelacarsen removal - Investing.com

Sep 08, 2026
pulisher
Sep 08, 2026

Canaccord cuts Ionis stock price target to $85 on pelacarsen trial miss - Investing.com

Sep 08, 2026
pulisher
Sep 08, 2026

H.C. Wainwright cuts Ionis stock price target to $100 on pelacarsen removal - Investing.com Canada

Sep 08, 2026
pulisher
Sep 08, 2026

Canaccord cuts Ionis stock price target to $85 on pelacarsen trial miss - Investing.com Canada

Sep 08, 2026
pulisher
Sep 08, 2026

Needham reiterates Ionis stock rating after trial failure By Investing.com - Investing.com India

Sep 08, 2026
pulisher
Sep 08, 2026

Ionis Stock Sinks 10% as Analysts Cut Targets After Pelacarsen Trial Miss - TipRanks

Sep 08, 2026
pulisher
Sep 08, 2026

IONS Maintained by HC Wainwright & Co. -- Price Target Lowered to $100 - GuruFocus

Sep 08, 2026
pulisher
Sep 08, 2026

Novartis, Ionis Pharmaceuticals And Other Big Stocks Moving Lower In Tuesday’s Pre-Market Session - Benzinga

Sep 08, 2026
pulisher
Sep 08, 2026

Why Is Novartis Stock Falling Today?Novartis (NYSE:NVS), Ionis Pharmaceuticals (NASDAQ:IONS), Royalty - Benzinga

Sep 08, 2026
pulisher
Sep 08, 2026

Ionis Pharmaceuticals Shares Fall After Pelacarsen Phase 3 Trial Misses Primary Endpoint - Yahoo Finance

Sep 08, 2026
pulisher
Sep 08, 2026

Why is Ionis Pharmaceuticals stock tumbling today? By Investing.com - Investing.com India

Sep 08, 2026
pulisher
Sep 07, 2026

Ionis Pharmaceuticals, Inc. (IONS) Discusses FDA Approval and Launch Strategy for ZANVASTRO in Alexander DiseaseSlideshow (NASDAQ:IONS) 2026-09-07 - Seeking Alpha

Sep 07, 2026
pulisher
Sep 07, 2026

Ionis Drug Wins FDA Approval as First Alexander Disease Treatment - Yahoo

Sep 07, 2026
pulisher
Sep 07, 2026

Amgen Shares Fall as Novartis' Pelacarsen Misses Phase III Study Goal - Zacks Investment Research

Sep 07, 2026
pulisher
Sep 07, 2026

Ionis Pharmaceuticals, Inc. (IONS) Stock Analysis: Evaluating A 51.72% Upside Potential - DirectorsTalk Interviews

Sep 07, 2026
pulisher
Sep 06, 2026

Ionis partner Novartis announces Lp(a)HORIZON Phase 3 topline results for pelacarsen in patients with elevated Lp(a) and established cardiovascular disease (CVD) - BioSpace

Sep 06, 2026

Ionis Pharmaceuticals Inc Stock (IONS) Financials Data

Revenue

loading

Net Income

loading

Cash Flow

loading

EPS

loading

Ionis Pharmaceuticals Inc Stock (IONS) Insider Trading

Insider Trading Relationship Date Transaction Cost #Shares Value ($) #Shares Total
Hayden Michael R
Director
Jul 31 '26
Buy
51.60
5,000
258,000
24,000
BERTHELSEN SPENCER R
Director
Jul 15 '26
Option Exercise
0.00
5,220
0
161,233
HERMAN JOAN E
Director
Jul 15 '26
Option Exercise
0.00
5,220
0
51,306
Diaz Allene M.
Director
Jul 07 '26
Option Exercise
47.11
10,111
476,329
13,922
Diaz Allene M.
Director
Jul 07 '26
Sale
85.42
10,111
863,637
3,811
Diaz Allene M.
Director
Jul 07 '26
Proposed Sale
85.42
10,111
863,637
0
Kordasiewicz Holly B.
Officer
Jul 07 '26
Proposed Sale
84.30
1,287
108,494
0
BENNETT C FRANK
Officer
Jul 07 '26
Proposed Sale
84.95
67,386
5,724,724
0
Kordasiewicz Holly B.
EVP, Chief Development Officer
Jul 07 '26
Sale
84.30
362
30,517
22,096
BENNETT C FRANK
EVP, Chief Scientific Officer
Jul 07 '26
Sale
85.46
15,000
1,281,930
0
$78.50
price down icon 0.17%
$247.96
price up icon 3.74%
$91.80
price up icon 4.34%
$14.37
price up icon 1.09%
$57.78
price down icon 1.01%
$154.51
price up icon 1.17%
Cap:     |  Volume (24h):