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Ionis Pharmaceuticals Inc (NASDAQ:IONS)

US · Delayed Price · Currency is USD
44.38+1.44 (+3.35%)
 
Market Cap7.38B-39.7%
Revenue (ttm)873.76M-7.4%
Net Income-564.78M-110.6%
EPS-3.46-86.0%
Shares Out166.18M
PE Ration/a
Forward PEn/a
Dividendn/a
Ex-Dividend Daten/a
Volume3,098,834
Open43.33
Previous Close42.94
Day's Range43.00 - 44.54
52-Week Range42.08 - 86.74
Beta0.38
AnalystsBuy
Price Target84.38(+90.13%)
Earnings DateNov 4, 2026
Insider Score
––Not scored
IONS Insider Score

Insiders filed in the last 90 days, but none of those trades qualified for scoring — round-trip buys and filings whose price is far off the market are excluded.

About IONS

Founded in 1989 and headquartered in Carlsbad, California, Ionis Pharmaceuticals, Inc. is a biopharmaceutical company specializing in the discovery and development of RNA-targeted therapies within the United States. Its commercial portfolio includes three key medications: SPINRAZA, prescribed for spinal muscular atrophy (SMA) in both children and adults; TEGSEDI, an injectable treatment targeting polyneuropathy associated with hereditary transthyretin-mediated amyloidosis in adult patients; and WAYLIVRA, which addresses familial chylomicronemia syndrome and familial partial lipodystrophy. Ionis also maintains a robust pipeline, with several drug candidates currently in Phase 3 clinical trials. These include Eplontersen, a monthly self-administered subcutaneous injection designed for all forms of TTR amyloidosis; Olezarsen, intended for individuals with severe hypertriglyceridemia (SHTG); Donidalorsen, for patients suffering from hereditary angioedema; ION363, aimed at amyotrophic lateral sclerosis (ALS); Pelacarsen, developed for those with established cardiovascular disease and elevated lipoprotein(a); and Tofersen, which works by inhibiting the production of superoxide dismutase 1. Beyond these late-stage assets, the company is actively researching treatments for metabolic, infectious, renal, and ophthalmic diseases, as well as various types of cancer. The firm engages in significant collaborations, notably a strategic partnership with Biogen Inc. Additionally, it holds licensing and collaboration agreements with AstraZeneca, Bayer AG, GlaxoSmithKline plc, Novartis AG, Roche, Janssen Biotech, Inc., and Flamingo Therapeutics, Inc.

Address
2855 Gazelle Court, Carlsbad, CA, 92010, US
Market Cap
7.38 billion
Employees
1,480
Industrial Classification
Biotechnology

What Are Insiders Doing?

Open-market buy / sell balanceNet Selling
Sold
$61.39K
Bought
$0

View the trades behind this meter — each links to its SEC Form 4 →

Open-market Form 4 purchases (code P) vs sales (code S) on file for this company. Grants, option exercises and tax withholdings are excluded. Informational only.

1 Day
+3.35%
5 Days
+1.84%
1 Month
-0.14%
6 Months
-40.72%
1 Year
-39.66%

$IONS stock is featured in our Insider Score Rankings, Congress Trading, and Insider Trades datasets.

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Congress Trading

Recent trades of IONS by members of U.S. Congress

PoliticianTypeTraded
Sheldon WhitehouseSenate / DSale$1.00K – $15.00KJan 20, 2016

Recently reported changes in IONS holdings by institutional investors

Scanning latest 13F filings…

Latest 0 13F filings · Source: SEC EDGAR

View all institutional owners →

Insider Trading

Quarterly net insider trading by IONS's directors and management

Net Shares Purchased by Insiders−2k−1k02025Q42026Q12026Q22026Q32026Q4

Source: SEC EDGAR (Form 4)

Corporate Lobbying

IONS Estimated quarterly lobbying spending

Source: U.S. Senate LDA

IONS Revenue by Segment

$400.00MTotal
SegmentRevenue% of All
Upfront payment received (in Dollars)$200.00M50.00%
Transaction price (in Dollars)$200.00M50.00%

As of: Q2 2026 (Jun 30, 2026) · Source: SEC EDGAR (10-Q)

U.S. Patents

New IONS patent grants

Loading patent grants…

Source: USPTO Open Data Portal

Government Contracts

Estimated quarterly amount awarded to IONS from public contracts

Source: USAspending.gov

Top ETF Holders

ETFs with the largest estimated holdings in IONS

ETFEst. Holding Size
VTIVanguard Morningstar Total Stock Market ETF$223.89M
VBVanguard Morningstar Small-Cap ETF$158.58M
XBIState Street SPDR S&P Biotech ETF$124.53M
VBKVanguard Morningstar Small-Cap Growth ETF$88.15M
VXFVanguard Extended Market ETF$83.71M
CGGRCapital Group Growth ETF$58.22M

Estimated from each fund’s disclosed top holdings × AUM

IONS Insider Score

Our composite score: insider buying, sector, volume, tone & dilution

Members only

The live Insider Score for IONS is included with Insider Access.

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Bull Case vs Bear Case

AI-generated from IONS’s recent data — informational, not investment advice

Generating analysis…

Insider Score

Our 0–100 Insider Score and the signals behind it.

Members only

The live Insider Score and its full factor breakdown are included with Insider Access.

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Recent Insider Activity

Buys
0
Sells
2
Buy Value
$0
Distinct Buyers
0

Frequently Asked Questions

Disclaimer — Informational only — not investment advice. Insider transaction data is sourced from SEC Form 4 filings; market data from public feeds and may be delayed. The Insider Score is a proprietary score for research purposes and does not predict future performance. Always do your own research.