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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
Eric SwayzeEVP Research2025-10-1653$73.62
$3.90kSell
Shannon L. DeversEVP Chief Human Resources Ofc2025-10-161,263$73.62
$92.98kSell
Brian BirchlerEVP Corp and Development Ops2025-10-1512,425$72.23
$897.40kSell
B. Lynne ParshallDirector2025-10-155,000$71.74
$358.72kSell
Shannon L. DeversEVP Chief Human Resources Ofc2025-10-156,000$48.51
$291.06kBuy
Shannon L. DeversEVP Chief Human Resources Ofc2025-10-156,000$72.94
$437.65kSell
Brian BirchlerEVP Corp and Development Ops2025-10-1512,425$53.77
$668.09kBuy
Brian BirchlerEVP Corp and Development Ops2025-10-1411,475$72.03
$826.59kSell
Brian BirchlerEVP Corp and Development Ops2025-10-1411,475$53.77
$617.01kBuy
Joseph BaroldiEVP Chief Business Officer2025-10-061,625$69.37
$112.72kSell

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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 LLC14.83%23,642,990$1.70BInstitution
Vanguard Group Inc10.49%16,714,846$1.20BInstitution
T Rowe Price Investment Management Inc10.07%16,048,721$1.15BInstitution
Capital World Investors7.87%12,540,188$901.39MInstitution
Blackrock Inc6.84%10,896,937$783.27MInstitution
Bellevue Group Ag4.93%7,853,198$564.49MInstitution
Wellington Management Group LLP3.98%6,345,776$456.13MInstitution
Deep Track Capital LP3.07%4,891,544$351.60MInstitution
State Street Corp2.84%4,530,398$325.65MInstitution
Adage Capital Partners GP LLC2.38%3,800,000$273.14MInstitution

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IONS vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
IONS96.84%3.16%Net SellingNet Selling
BBIO63.79%36.21%Net SellingNet Selling
ASND100.00%0.00%
RVMD90.58%9.42%Net BuyingNet Selling
MRNA74.90%22.64%Net BuyingNet Selling
View Top Biotech Stocks

Ionis Pharmaceuticals Stock Ownership FAQ

Who owns Ionis Pharmaceuticals?

Ionis Pharmaceuticals (NASDAQ: IONS) is owned by 104.57% institutional shareholders, 3.41% Ionis Pharmaceuticals insiders, and 0.00% retail investors. Lilly Co Eli is the largest individual Ionis Pharmaceuticals shareholder, owning 2.50M shares representing 1.54% of the company. Lilly Co Eli's Ionis Pharmaceuticals shares are currently valued at $185.43M.

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