Ionis Pharmaceuticals, Inc.
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About the company
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.
- CEO
- Brett Monia
- IPO
- 1991
- Employees
- 1,402
- HQ
- Carlsbad, CA, US
Price Chart
AI snapshot
Six angles, distilled from the data.
The stock is still in a major downtrend, trading well below its 200-day average after a long slide from the 52-week high. The setup is closer to a deep reset than a breakout, with price sitting in the lower half of the yearly range rather than near prior highs.
Street sentiment remains constructive, with a Buy consensus and an average target around $95. Recent calls have turned more cautious, with multiple target cuts in July and one downgrade to Peer Perform, but the target stack still sits well above the current share price.
The company has a strong recent beat streak, going 7-for-7 on reported quarters, including a 61.0% EPS beat in the latest completed period. Next quarter expectations remain negative at -$1.11 EPS, so shareholders should watch for continued execution and any improvement in the loss profile.
Recent insider activity leans to net selling, led by discretionary sales from the CSO, a director, and an EVP of development. Several award, exempt, and other non-discretionary transactions also appeared, which are mostly compensation-related noise rather than a clear conviction signal.
Profitability remains weak, with a -47.7% operating margin and a -30.9% net margin. Revenue growth is strong at 87% year over year, but free cash flow was negative $217.1 million and EPS TTM sits at -2.01, so the business is still scaling into earnings.
IONS stands out as a commercial-stage RNA platform with multiple marketed drugs and a deep rare-disease pipeline, which supports a premium profile versus many biotech peers. Even so, the valuation still reflects a loss-making model, with the stock trading below the analyst consensus target and near a sector-risk discount.
- Market Cap
- $8.99B
- P/E
- -27.33
- P/S
- 8.50
- P/B
- 18.25
- EV/EBITDA
- 2.37
- Div Yield
- 0.00%
- Gross Margin
- 98.35%
- Op Margin
- -33.35%
- Net Margin
- -30.87%
- ROE
- -58.57%
- ROIC
- -11.14%
- Revenue
- $944.00M · 33.87%
- Net Income
- $-381,000,000 · 16.06%
- EPS
- $-2.38 · 21.71%
- Op Income
- $-382,000,000
- FCF YoY
- 41.41%
- 52W High
- $86.74
- 52W Low
- $40.03
- 50D MA
- $73.66
- 200D MA
- $75.89
- Beta
- 0.36
- Avg Volume
- 2.53M
Recent insider transactions
Who's buying, who's selling, and how much.
| Date | Insider | Type | Shares |
|---|---|---|---|
| Jul 15, 26 | Reikes Peter N | other | 3,399 |
| Jul 15, 26 | HANTSON LUDWIG | other | 3,399 |
| Jul 15, 26 | HERMAN JOAN E | other | 5,220 |
| Jul 15, 26 | HERMAN JOAN E | other | 5,220 |
| Jul 15, 26 | BERTHELSEN SPENCER R | other | 5,220 |
| Jul 15, 26 | BERTHELSEN SPENCER R | other | 5,220 |
| Jul 7, 26 | BENNETT C FRANK | sell | 5,536 |
| Jul 7, 26 | BENNETT C FRANK | other | 15,000 |
| Jul 7, 26 | BENNETT C FRANK | other | 15,000 |
| Jul 7, 26 | BENNETT C FRANK | sell | 15,000 |
Our IONS coverage
Recent articles, reports, and earnings notes.

Ionis Pharmaceuticals (IONS): Commercial RNA Growth Is Accelerating
Ionis is evolving into a multi-product commercial RNA medicines company, with TRYNGOLZA and DAWNZERA driving real revenue growth and a larger market opportunity now open for TRYNGOLZA.

Ionis Pharmaceuticals, Inc. (IONS) drops 8.7% after trial miss
Ionis Pharmaceuticals, Inc. (IONS) drops sharply after a Phase 3 ATTR-CM trial for eplontersen missed its primary endpoint, pressuring the stock on heavy volume. The setback trims a key growth opportunity, even as the company continues to show solid commercial execution and a strong earnings track record.

Ionis is getting punished for the wrong part of the story
Ionis got hit as if the Wainua trial miss broke the whole equity story, and that looks too simplistic. The bigger near-term driver is now TRYNGOLZA's expanded launch, with commercial revenue already up 42% and management raising its olezarsen peak-sales view above $3 billion.
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AI analysis · Last refreshed July 18, 2026 · Live quote · Not investment advice