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
7.13B
Market cap7.13B
Price-Earnings ratio
-12.36
Price-Earnings ratio-12.36
Dividend yield
—
Dividend yield—
Average volume
2.70M
Average volume2.70M
High today
$43.93
High today$43.93
Low today
$42.62
Low today$42.62
Open price
$43.73
Open price$43.73
Volume
3.02M
Volume3.02M
52 Week high
$86.74
52 Week high$86.74
52 Week low
$42.08
52 Week low$42.08

Stock Snapshot

With a market cap of 7.13B, Ionis Pharmaceuticals(IONS) trades at $43.88. The stock has a price-to-earnings ratio of -12.36.

During the trading session on 2026-10-25, Ionis Pharmaceuticals(IONS) shares reached a daily high of $43.93 and a low of $42.62. At a current price of $43.88, the stock is +3.0% higher than the low and still -0.1% under the high.

Trading activity shows a volume of 3.02M, compared to an average daily volume of 2.7M.

Over the past 52 weeks, Ionis Pharmaceuticals(IONS) stock has traded between a high of $86.74 and a low of $42.08.

Over the past 52 weeks, Ionis Pharmaceuticals(IONS) stock has traded between a high of $86.74 and a low of $42.08.

IONS News

TipRanks 2d
Ionis Advances IgA Nephropathy Program With Positive Phase 3

The latest update is out from Ionis Pharmaceuticals ( (IONS) ). On October 23, 2026, Ionis’ partner Roche reported late‑breaking Phase 3 data from the ongoing...

TipRanks 2d
Roche says Sefaxersen trial shows meaningful reduction in proteinuria

Ionis Pharmaceuticals (IONS) partner Roche (RHHBY) announced late-breaking oral presentation data from the ongoing Phase 3 IMAgINATION study in adults with prim...

TipRanks 3d
Ionis treatment of Dravet syndrome granted FDA orphan status

Ionis Pharmaceuticals (IONS) was granted FDA orphan designation for a treatment of Dravet syndrome, according to a post on the agency’s website. Published firs...

Analyst ratings

86%

of 28 ratings
Buy
85.7%
Hold
14.3%
Sell
0%

More IONS News

TipRanks 4d
Analyst Raises Ionis Price Target to $66 on Strong Tryngolza Launch and Undervalued sHTG Opportunity

Ionis Pharmaceuticals, the Healthcare sector company, was revisited by a Wall Street analyst today. Analyst David Lebowitz from BMO Capital upgraded the rating...

TipRanks 5d
Ionis Pharmaceuticals partner GSK announces FDA approval of Hibsago

Ionis Pharmaceuticals (IONS) partner GSK (GSK) announced that the FDA has approved Hibsago for the treatment of chronic hepatitis B, or CHB, virus infection in...

Simply Wall St 7d
Ionis Pharmaceuticals Shares Dropped, So What Is Behind The Latest Attention?

Ionis Pharmaceuticals (IONS) just picked up a key regulatory boost in Europe, with the EMA’s CHMP issuing a positive opinion to extend TRYNGOLZA’s indication fo...

Ionis Pharmaceuticals Shares Dropped, So What Is Behind The Latest Attention?

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