$IONS
Ionis Pharmaceuticals, Inc. Common Stock
XNAS•Health Care•Pharmaceutical Preparations
Why is IONS up today? It is at $54.84 (+1.21%), and our scanner flagged it 59 times on unusual volume this month. See the catalyst behind the move, real-time alerts the moment IONS spikes, and full due diligence on IONS — key stats, earnings, dilution and insider activity. Free.
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Our scanner flagged $IONS 59 times in the last 30 days. Create a free account to track $IONS, build a watchlist, and get instant unusual-volume alerts — plus 5 free premium days, no card needed.
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Key Stats
- Price
- $54.84
- Change today
- +1.21%
- Previous close
- $54.19
- 52-week range
- $40.03 – $86.74
- Market cap
- $9.01B
- Institutional own.
- 99.9%
- Total held
- 100.0%
- Short interest
- 20.0M ▲ +15% vs prior · as of 2026-07-15
- Days to cover
- 3.7d
- Avg daily volume
- 2.5M
- Sector
- Health Care
- Industry
- Pharmaceutical Preparations
- Exchange
- XNAS
- 5m
- 0.4x
- 15m
- 0.3x
- 1h
- 0.5x
- 1D
- 0.1x
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Why is $IONS up today?
Here is the latest on IONS from our scanner (live price and day move above). We have not detected an unusual-volume catalyst for IONS today, so it is trading in line with its recent range. The moment our scanner flags unusual activity, the reason will appear here.
Likely catalystQuarterly report (10-Q), from the latest SEC filing. Read it →Insiders
2 open-market buys3 buys, 17 sells last 3 months (21/127 over 12 months)Show 12 recent transactionsMinimize 12 recent transactions
| Insider | Action | Shares | % of position | Owns after | Value | Date |
|---|---|---|---|---|---|---|
Hayden Michael R Director | Bought (open market) | +5K | added 26% | 24K | $258K at $51.60 | Jul 31, 26 |
Hayden Michael R Director | Bought (open market) | +15K | added 100% | 19K | $801K at $53.38 | Jul 30, 26 |
Berthelsen Spencer R Director | Other | 5K | added 3.3% | 161K | n/a | Jul 15, 26 |
Herman Joan E Director | Other | 5K | added 11% | 51K | n/a | Jul 15, 26 |
Kordasiewicz Holly B. Officer | Sold (automatic/other) | -362 | sold 1.6% | 22K | $31K at $84.30 | Jul 7, 26 |
Diaz Allene M. Director | Sold (automatic/other) | -10K | sold 73% | 4K | $864K at $85.42 | Jul 7, 26 |
Diaz Allene M. Director | Other | 10K | added 100% | 14K | $476K at $47.11 | Jul 7, 26 |
Bennett C Frank Officer | Sold (automatic/other) | -6K | sold 6.9% | 75K | $463K at $83.58 | Jul 7, 26 |
Bennett C Frank Officer | Acquired (grant/award) | +15K | n/a | 15K | n/a | Jul 7, 26 |
Bennett C Frank Officer | Sold (automatic/other) | -15K | n/a | n/a | $1.3M at $85.46 | Jul 7, 26 |
Klein Joseph Iii Director | Sold (automatic/other) | -12K | sold 51% | 11K | $910K at $79.04 | Jul 1, 26 |
Klein Joseph Iii Director | Other | 12K | added 100% | 23K | $460K at $39.94 | Jul 1, 26 |
Recent Form-4 filings via Nasdaq. Open-market buys are the signal worth watching. Grants and automatic (10b5-1) sells are routine. “% of position” is the share of that insider’s own holding the trade moved. Not investment advice.
$IONS Sentiment
BullishBlend of news sentiment, today’s move, and community votes. Not investment advice.
$IONS Activity
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IONS stock FAQ
Why is $IONS up today?
Here is the latest on IONS from our scanner (live price and day move above). We have not detected an unusual-volume catalyst for IONS today, so it is trading in line with its recent range. The moment our scanner flags unusual activity, the reason will appear here.
What is the IONS stock price today?
IONS last traded at $54.84, up 1.21% on the day. The price and chart above update live during market hours (4 AM to 8 PM ET).
Where can I see live IONS alerts?
The IONS Live Alerts panel on this page streams real-time unusual volume (RVOL), momentum, halt and 200-EMA alerts from our scanner the moment they fire. Our scanner has flagged IONS 59 times in the last 30 days.
What exchange is IONS on?
IONS (Ionis Pharmaceuticals, Inc. Common Stock) trades on XNAS, with a market cap of about $9.01B in the PHARMACEUTICAL PREPARATIONS sector.
Is IONS good for day trading?
That depends on your strategy and risk. Day traders look for volume, volatility and a clear trend. Use the live chart, RVOL alerts and 200-EMA context on this page to judge IONS for yourself. This is not investment advice.
Live data from TheDesperateTrader scanner. Not investment advice.