Ionis Pharmaceuticals

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About IONS

Ionis Pharmaceuticals, Inc. engages in the development and commercialization of human therapeutic drugs using antisense technology. The company was founded by Stanley T. 

CEO
Brett P. Monia
CEOBrett P. Monia
Employees
1,402
Employees1,402
Headquarters
Carlsbad, California
HeadquartersCarlsbad, California
Founded
1989
Founded1989
Employees
1,402
Employees1,402

IONS Key Statistics

Market cap
7.39B
Market cap7.39B
Price-Earnings ratio
-12.62
Price-Earnings ratio-12.62
Dividend yield
—
Dividend yield—
Average volume
5.31M
Average volume5.31M
High today
$45.28
High today$45.28
Low today
$43.64
Low today$43.64
Open price
$44.09
Open price$44.09
Volume
6.14M
Volume6.14M
52 Week high
$86.74
52 Week high$86.74
52 Week low
$43.01
52 Week low$43.01

Stock Snapshot

Ionis Pharmaceuticals(IONS) stock is priced at $44.65, giving the company a market capitalization of 7.39B. It carries a P/E multiple of -12.62.

As of 2026-09-25, Ionis Pharmaceuticals(IONS) stock has fluctuated between $43.64 and $45.28. The current price stands at $44.65, placing the stock +2.3% above today's low and -1.4% off the high.

Ionis Pharmaceuticals(IONS) shares are trading with a volume of 6.14M, against a daily average of 5.31M.

During the past year, Ionis Pharmaceuticals(IONS) stock moved between $43.01 at its lowest and $86.74 at its peak.

During the past year, Ionis Pharmaceuticals(IONS) stock moved between $43.01 at its lowest and $86.74 at its peak.

IONS News

Simply Wall St 20h
Ionis Pharmaceuticals Posted Two Positive Phase 3 Trial Readouts

Ionis Pharmaceuticals (NasdaqGS:IONS) reported two positive Phase 3 trial readouts on 24 September 2026 for late stage RNA-targeted drugs. Sefaxersen, partnere...

Ionis Pharmaceuticals Posted Two Positive Phase 3 Trial Readouts
TipRanks 2d
Stringer Reiterates Buy on Ionis as Late-Stage Pipeline Delivers; Price Target Maintained at $86

Ionis Pharmaceuticals, the Healthcare sector company, was revisited by a Wall Street analyst today. Analyst Joseph Stringer from Needham maintained a Buy rating...

Nasdaq 2d
Ionis Delivers Positive Late-Stage Results for Two Partnered Drugs

Ionis Pharmaceuticals IONS announced positive results from two partnered programs, both of which are in phase III development. IONS Secures Phase III Win in AL...

Ionis Delivers Positive Late-Stage Results for Two Partnered Drugs

Analyst ratings

81%

of 27 ratings
Buy
81.5%
Hold
18.5%
Sell
0%

More IONS News

Seeking Alpha 2d
Roche, Ionis succeed in late-stage trial for kidney disease therapy

Ionis Pharmaceuticals (IONS) and Roche (RHHBY) announced on Wednesday that their RNA-targeting therapy sefaxersen succeeded in a late-stage trial for patients w...

Roche, Ionis succeed in late-stage trial for kidney disease therapy
Benzinga 2d
Ionis and Roche Advance First RNA-Targeted Therapy for Autoimmune Kidney Disease

Ionis Pharmaceuticals Inc. (NASDAQ:IONS) and licensing partner Roche Holdings AG (OTC:RHHBY) on Wednesday shared prespecified interim outcomes from their ongoin...

Ionis and Roche Advance First RNA-Targeted Therapy for Autoimmune Kidney Disease
TipRanks 3d
Ionis and Roche Report Positive Phase 3 IgAN Data

The latest announcement is out from Ionis Pharmaceuticals ( (IONS) ). On September 23, 2026, Ionis Pharmaceuticals and partner Roche reported that their Phase...

TipRanks 3d
Ionis: Strong ALS Data and Underappreciated Pipeline Support Buy Rating and Unchanged $100 Price Target

Analyst Mitchell Kapoor from H.C. Wainwright reiterated a Buy rating on Ionis Pharmaceuticals and keeping the price target at $100.00. Mitchell Kapoor has given...

Benzinga 3d
Ionis to Seek Expedited FDA Review for ALS Drug

Ionis Pharmaceuticals Inc. (NASDAQ:IONS) and Otsuka on Tuesday shared positive topline results from their Phase 3 FUSION trial. The trial evaluated ulefnersen,...

Ionis to Seek Expedited FDA Review for ALS Drug
Benzinga 3d
Cathie Wood Loads Up On Biotech: 5 ETFs Holding Her Latest Bets

Cathie Wood is doubling down on biotech, but investors looking beyond her ARK Genomic Revolution ETF (BATS:ARKG) have several other ways to gain exposure to the...

Cathie Wood Loads Up On Biotech: 5 ETFs Holding Her Latest Bets
TipRanks 3d
Ionis announces Phase 3 FUSION study of ulefnersen met primary endpoint

Ionis Pharmaceuticals (IONS) and Otsuka (OTSKY) Pharmaceutical Development & Commercialization announced topline results from the Phase 3 FUSION trial evaluatin...

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