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NASDAQ: IONS
Ionis Pharmaceuticals Inc Stock Ownership - Who owns Ionis Pharmaceuticals?

OverviewForecastEarningsRevenueDividendOwnership

Insider buying vs selling

Have Ionis Pharmaceuticals Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Michael R. HaydenDirector2025-05-0115,000$31.86
$477.90kBuy
Joseph BaroldiEVP Chief Business Officer2025-04-163,928$28.40
$111.56kSell
Kyle JenneEVP Chf GL Pdt Str Ofcr2025-04-163,016$28.36
$85.53kSell
Brian BirchlerEVP Corp and Development Ops2025-04-16680$28.37
$19.29kSell
Brett P. MoniaChief Executive Officer2025-03-11140$32.32
$4.52kSell
Eric SwayzeEVP Research2025-02-28415$28.21
$11.71kBuy
C. Frank BennettEVP Chief Scientific Officer2025-02-28320$28.21
$9.03kBuy
Patrick R. OneilEVP CLO General Counsel2025-02-28554$28.21
$15.63kBuy
Brett P. MoniaChief Executive Officer2025-02-28437$28.21
$12.33kBuy
Brian BirchlerEVP Corp and Development Ops2025-02-28414$28.21
$11.68kBuy

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Net Insider Buy/Sell (L12M) Ownership

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IONS Shareholders

What type of owners hold Ionis Pharmaceuticals Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Fmr LLC14.84%23,613,585$840.41MInstitution
Vanguard Group Inc10.29%16,383,934$583.10MInstitution
T Rowe Price Investment Management Inc10.16%16,175,533$575.69MInstitution
Capital World Investors7.77%12,361,994$439.96MInstitution
Blackrock Inc7.08%11,264,442$400.90MInstitution
Wellington Management Group LLP5.29%8,416,421$299.54MInstitution
Bellevue Group Ag4.93%7,853,198$279.50MInstitution
State Street Corp3.04%4,845,133$172.44MInstitution
Deep Track Capital LP2.87%4,564,207$162.44MInstitution
Citadel Advisors LLC2.19%3,480,062$123.86MInstitution

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IONS vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
IONS96.72%3.28%Net SellingNet Buying
NUVL75.11%24.89%Net SellingNet Buying
TGTX55.61%44.39%Net Selling
TLX0.01%0.00%
AXSM70.09%29.91%Net BuyingNet Selling
View Top Biotech Stocks

Ionis Pharmaceuticals Stock Ownership FAQ

Who owns Ionis Pharmaceuticals?

Ionis Pharmaceuticals (NASDAQ: IONS) is owned by 104.51% institutional shareholders, 3.54% Ionis Pharmaceuticals insiders, and 0.00% retail investors. Lilly Co Eli is the largest individual Ionis Pharmaceuticals shareholder, owning 2.50M shares representing 1.57% of the company. Lilly Co Eli's Ionis Pharmaceuticals shares are currently valued at $88.98M.

If you're new to stock investing, here's how to buy Ionis Pharmaceuticals stock.
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