IONIS PHARMACEUTICALS INC

NASDAQ: IONS (Ionis Pharmaceuticals, Inc.)

Last update: 18 hours ago

84.03

0.96 (1.16%)

Previous Close 83.07
Open 83.00
Volume 475,496
Avg. Volume (3M) 2,444,796
Market Cap 13,610,708,992
Price / Earnings (Forward) 90.91
Price / Sales 13.78
Price / Book 21.99
52 Weeks Range
23.95 (-71%) — 86.15 (2%)
Earnings Date 29 Oct 2025
Profit Margin -63.86%
Operating Margin (TTM) -111.59%
Diluted EPS (TTM) -2.99
Quarterly Revenue Growth (YOY) 10.10%
Total Debt/Equity (MRQ) 413.80%
Current Ratio (MRQ) 9.66
Operating Cash Flow (TTM) -501.78 M
Levered Free Cash Flow (TTM) -368.16 M
Return on Assets (TTM) -10.59%
Return on Equity (TTM) -118.62%

Market Trend

Short Term Medium Term
Industry Biotechnology (US) Bullish Mixed
Biotechnology (Global) Bullish Mixed
Stock Ionis Pharmaceuticals, Inc. Bullish Bullish

AIStockmoo Score

-0.5
Analyst Consensus 1.5
Insider Activity -3.0
Price Volatility -0.5
Technical Moving Averages -2.5
Technical Oscillators 2.0
Average -0.50

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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 received FDA approval in 2024 for Tryngolza for a rare high-triglyceride syndrome, marking its first independent launch.

Sector Healthcare
Industry Biotechnology
Investment Style Small Core
% Held by Insiders 0.83%
% Held by Institutions 108.17%

Ownership

Name Date Shares Held
Tweedy, Browne Co Llc 31 Dec 2025 2,464,930
52 Weeks Range
23.95 (-71%) — 86.15 (2%)
Price Target Range
77.00 (-8%) — 110.00 (30%)
High 110.00 (HC Wainwright & Co., 30.91%) Buy
Median 98.50 (17.22%)
Low 77.00 (Piper Sandler, -8.37%) Buy
Average 96.50 (14.84%)
Total 6 Buy
Avg. Price @ Call 76.11
Firm Date Target Price Call Price @ Call
Wells Fargo 05 Jan 2026 100.00 (19.01%) Buy 78.53
RBC Capital 17 Dec 2025 95.00 (13.05%) Buy 77.08
Leerink Partners 15 Dec 2025 100.00 (19.01%) Buy 79.76
B of A Securities 09 Dec 2025 97.00 (15.43%) Buy 78.86
HC Wainwright & Co. 10 Nov 2025 110.00 (30.91%) Buy 69.54
Piper Sandler 04 Nov 2025 77.00 (-8.37%) Buy 72.88
Name Avg. Buy ($) Avg. Sell ($) Net Quantity Net Value ($)
DEVERS SHANNON L. - 81.79 -3,977 -325,279
Aggregate Net Quantity -3,977
Aggregate Net Value ($) -325,279
Aggregate Avg. Buy ($) -
Aggregate Avg. Sell ($) 81.79
Name Holder Date Type Quantity Price Value ($)
DEVERS SHANNON L. Officer 22 Jan 2026 Automatic sell (-) 3,977 81.79 325,279
Date Type Details
21 Jan 2026 Announcement DAWNZERA™ (donidalorsen) approved in the European Union for hereditary angioedema (HAE)
12 Jan 2026 Announcement Ionis well-positioned for continued momentum and substantial value creation in 2026 with two new independent launches and several pivotal data readouts
07 Jan 2026 Announcement Ionis partner GSK announces positive topline results from B-Well 1 and B-Well 2 Phase 3 studies for bepirovirsen, a potential first-in-class medicine for chronic hepatitis B
06 Jan 2026 Announcement Ionis to present at 44th Annual J.P. Morgan Healthcare Conference
02 Dec 2025 Announcement Ionis receives U.S. FDA Breakthrough Therapy designation for zilganersen for Alexander disease (AxD)
01 Dec 2025 Announcement Ionis receives U.S. FDA Breakthrough Therapy designation for olezarsen for severe hypertriglyceridemia (sHTG)
14 Nov 2025 Announcement DAWNZERA™ (donidalorsen) receives positive opinion from CHMP, recommended for approval in EU for hereditary angioedema (HAE)
13 Nov 2025 Announcement Ionis Prices Convertible Notes Offering to Refinance 2026 Convertible Notes
12 Nov 2025 Announcement Ionis to present at upcoming investor conferences
11 Nov 2025 Announcement Ionis Announces Proposed Convertible Offering to Refinance 2026 Convertible Notes
08 Nov 2025 Announcement Groundbreaking pivotal study results of olezarsen for severe hypertriglyceridemia (sHTG) presented as a late breaker at AHA Scientific Sessions
06 Nov 2025 Announcement Ionis presents new data demonstrating long-term disease control with DAWNZERA™ (donidalorsen) at ACAAI 2025 Annual Meeting
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