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
9.66B
Market cap9.66B
Price-Earnings ratio
-16.74
Price-Earnings ratio-16.74
Dividend yield
Dividend yield
Average volume
2.31M
Average volume2.31M
High today
$58.98
High today$58.98
Low today
$51.80
Low today$51.80
Open price
$58.37
Open price$58.37
Volume
2.33M
Volume2.33M
52 Week high
$86.74
52 Week high$86.74
52 Week low
$50.01
52 Week low$50.01

Stock Snapshot

Ionis Pharmaceuticals(IONS) stock is priced at $58.09, giving the company a market capitalization of 9.66B. It carries a P/E multiple of -16.74.

As of 2026-09-04, Ionis Pharmaceuticals(IONS) stock has fluctuated between $51.80 and $58.98. The current price stands at $58.09, placing the stock +12.1% above today's low and -1.5% off the high.

Ionis Pharmaceuticals(IONS) shares are trading with a volume of 2.33M, against a daily average of 2.31M.

During the past year, Ionis Pharmaceuticals(IONS) stock moved between $50.01 at its lowest and $86.74 at its peak.

During the past year, Ionis Pharmaceuticals(IONS) stock moved between $50.01 at its lowest and $86.74 at its peak.

IONS News

TipRanks 11m
Novartis announces Phase 3 pelacarsen study did not meet primary endpoint

Ionis Pharmaceuticals (IONS) partner Novartis (NVS) announced that the pelacarsen Phase 3 Lp(a)HORIZON study, a pioneering cardiovascular outcomes trial, did no...

Benzinga 9h
Ionis Drug Wins FDA Approval as First Alexander Disease Treatment

The U.S. Food and Drug Administration has approved Zanvastro (zilganersen), manufactured by Ionis Pharmaceuticals Inc. (NASDAQ:IONS), for Alexander disease in a...

Ionis Drug Wins FDA Approval as First Alexander Disease Treatment
TipRanks 9h
Ionis Pharmaceuticals price target raised to $61 from $60 at BMO Capital

BMO Capital analyst David Lebowitz raised the firm’s price target on Ionis Pharmaceuticals (IONS) to $61 from $60 and keeps a Market Perform rating on the share...

Analyst ratings

81%

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

More IONS News

TipRanks 11h
Ionis wins FDA approval for ZANVASTRO in Alexander disease

The latest update is out from Ionis Pharmaceuticals ( (IONS) ). On September 3, 2026, Ionis Pharmaceuticals announced that the U.S. FDA approved ZANVASTRO (zil...

TipRanks 1d
Ultragenyx downgraded to Sector Perform from Outperform at RBC Capital

RBC Capital downgraded Ultragenyx (RARE) to Sector Perform from Outperform with a price target of $19, down from $40. The company announced that the Phase 3 Asp...

Simply Wall St 3d
Ionis Pharmaceuticals Stock Looks Fully Priced On Sales Yet Mixed On Value

Ionis Pharmaceuticals stock has delivered a 60.7% gain over the past five years, yet current valuation checks using market multiples point to the shares screeni...

Ionis Pharmaceuticals Stock Looks Fully Priced On Sales Yet Mixed On Value
TipRanks 4d
Ionis Pharmaceuticals: Solid Product Momentum but Balanced Risk-Reward; Hold Rating and $69 Price Target Reiterated

Analyst Salveen Richter of Goldman Sachs maintained a Hold rating on Ionis Pharmaceuticals, retaining the price target of $69.00. Salveen Richter has given his...

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