Menu

Markets

Research

News

Learn
Paper trading
AI Chat
Get the app WatchlistsPortfoliosAlerts
Sign in

Ionis Pharmaceuticals, Inc. IONS

Full chart Compare
Set alert

Price alert · IONS

All alert types
40.15 USD -0.27 (-0.67%)

At closeNov 5, 2026, 4:00 AM EST

40.18 +0.03 +0.07%

Pre-market · Nov 5, 4:00 AM ET

39.33 Day range 41.53
39.33 52-week range 86.74
YTD
-49.25%
1 year
-44.91%

Held by funds

179 US ETFs and mutual funds hold IONS · largest positions

Funds holding IONS, by value held
FundValue heldWeight in fund
FGCKX $379.69M0.38%
VTI $223.89M0.01%
VB $158.58M0.09%
VGHCX $134.42M0.35%
XBI $111.36M1.06%
VBK $88.15M0.20%
VXF $83.71M0.09%
NIW $72.03M0.35%
CGGR $59.00M0.23%
IBB $50.21M0.45%
NIZ $46.22M0.08%
NBF $43.16M0.03%
ARKG $36.90M1.71%
SCHA $35.79M0.16%
IWP $35.31M0.19%
FSMAX $34.23M0.09%
VEXRX $31.73M0.14%
FSMDX $28.88M0.06%
IWR $28.32M0.05%
ANOGX $26.54M0.45%

Ownership

Held by insiders 0.60%
Held by institutions 110.12%
Float held by institutions 110.77%
Institutions 696

Top institutional holders

Top institutional holders
Holder% heldSharesValueReported
FMR, LLC14.82%24,631,956988.97MJun 29, 2026
Capital World Investors13.04%21,669,226870.02MJun 29, 2026
Blackrock Inc.6.44%10,704,660429.79MJun 29, 2026
Vanguard Portfolio Management LLC4.73%7,859,529315.56MJun 29, 2026
Wellington Management Group, LLP4.60%7,651,415307.20MJun 29, 2026
Vanguard Capital Management LLC4.34%7,211,497289.54MJun 29, 2026

Top mutual fund holders

Top mutual fund holders
Holder% heldSharesValueReported
Fidelity Mt. Vernon Street Trust-Fidelity Growth Company Fund5.12%8,503,655341.42MAug 30, 2026
Growth Fund of America4.61%7,668,655307.90MSep 29, 2026
VANGUARD SPECIALIZED FUNDS-Vanguard Health Care Fund3.74%6,212,640249.44MJul 30, 2026
VANGUARD INDEX FUNDS-Vanguard Total Stock Market Index Fund3.00%4,989,044200.31MJun 29, 2026
New Economy Fund2.93%4,868,802195.48MSep 29, 2026
SmallCap World Fund Inc2.68%4,458,145178.99MSep 29, 2026

Insiders

Recent Form 4 trades →
IONS insiders
InsiderRelationLatest transactionDateShares held
BAROLDI JOSEPHOfficerSaleJun 25, 20260
BENNETT C FRANKOfficerSaleJul 6, 20260
BERTHELSEN SPENCER RDirectorConversion of Exercise of derivative securityJul 14, 2026161,303
BIRCHLER BRIANOfficerSaleApr 15, 202667,500
GEARY RICHARD SOfficerSaleNov 5, 202559,657
HAYDEN MICHAEL REUBENDirectorPurchaseJul 30, 20260