NASDAQ NMS - GLOBAL MARKET · IONS
+0.00% · +$0.0000 · Vol Not reported
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Ionis Pharmaceuticals Inc

Ionis Pharmaceuticals Inc

Biotechnology
$81.80
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About Ionis Pharmaceuticals Inc
PHARMACEUTICAL PREPARATIONS
Listed since
1991
Employees
1K
Country
US

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 marked its first two independent launches in 2025 for Tryngolza (for FCS) and Dawnzera (for HAE).

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Key statistics

Reported fields plus Veridion-computed history. Unsourced tiles are omitted.

Open
$81.80
Last session
Day high
$81.80
Last session
Day low
$81.80
Last session
Previous close
$81.80
52W high
$81.80
0.00% from high
52W low
$72.93
100% of range
Market cap
$13.5B
EPS
$-1.5900
Shares out
165.3M
VWAP
$81.80
Last session
Price history computed in-house
1W
+0.76%
SMA 50 $76.90 · above
SMA 200 $76.90 · above
52W position 100%
Veridion warehouse edge

Warehouse intelligence for IONS.

Veridion Score
35
0: 201: 522: 563: 204: 785: Not reported
Congress 30d
0
No recent disclosure on file.
Insider activity
See Form 4 panel below.
13F holders
None on file
Capital Web snapshots checked.
Disclosure-sourced lobbying and contract detail remains attributed in the full panels below.
Data ledger
Quote and day range
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Source: Market data
Veridion Score
Coverage building
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Chart and risk context
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News and filings
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Financials
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SEC Form 4 ledger

IONS insider activity

Ionis Pharmaceuticals Inc

Score
Coverage building
Pressure
Net selling
Filings
134
Buys / sells
54 / 80
Net value
-$53.2M
Insiders
16
Named filers
MP
Monia Brett P
Insider
Leadership
SE
Swayze Eric
Insider
Leadership
BR
BERTHELSEN SPENCER R
Insider
Leadership
Cluster

5 insiders bought in the last 90 days

Net pressure

Net selling: -$53.2M across loaded Form 4 rows.

Convergence not established

Loaded official disclosures do not show all three sources aligned on this ticker.

Filing dateTrade dateInsiderTitleTypePriceQtyOwnedValueReceipt
2026-06-262026-06-26Monia Brett PInsidersell$80.5950,000245,571$4.0MSEC Form 4
2026-06-262026-06-26Monia Brett PInsiderbuy$56.7850,000295,571$2.8MSEC Form 4
2026-06-262026-06-25Swayze EricInsidersell$79.1810,60221,759$839KSEC Form 4
2026-06-262026-06-25Monia Brett PInsidersell$78.4921,072245,571$1.7MSEC Form 4
2026-06-262026-06-25Monia Brett PInsiderbuy$32.6021,072266,643$687KSEC Form 4
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Source: SEC EDGAR Form 4. Rows with missing price or quantity are excluded rather than zero-filled.Methodology
Congress · 90D
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Federal contracts

IONS contract awards, year to date.

Public federal awards linked to this ticker.

Not disclosed
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Lobbying spend

IONS lobbying filings, year to date.

Registered lobbying filings matched to Ionis Pharmaceuticals Inc.

Not disclosed
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Latest news · IONS
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