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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
Brett P. MoniaChief Executive Officer2025-07-302,432$45.00
$109.44kSell
Brett P. MoniaChief Executive Officer2025-07-302,432$32.60
$79.28kBuy
Brett P. MoniaChief Executive Officer2025-07-111,160$41.74
$48.42kSell
Michael R. HaydenDirector2025-05-0115,000$31.86
$477.90kBuy
Brian BirchlerEVP Corp and Development Ops2025-04-16680$28.37
$19.29kSell
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
Brett P. MoniaChief Executive Officer2025-03-11140$32.32
$4.52kSell
Patrick R. OneilEVP CLO General Counsel2025-02-28554$28.21
$15.63kBuy
Richard S. GearyEVP Chief Development Officer2025-02-28415$28.21
$11.71kBuy

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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 LLC14.81%23,613,585$1.02BInstitution
Vanguard Group Inc10.28%16,383,934$705.00MInstitution
T Rowe Price Investment Management Inc10.15%16,175,533$696.03MInstitution
Capital World Investors7.76%12,361,994$531.94MInstitution
Blackrock Inc7.07%11,264,442$484.71MInstitution
Wellington Management Group LLP5.28%8,416,421$362.16MInstitution
Bellevue Group Ag4.93%7,853,198$337.92MInstitution
State Street Corp3.04%4,845,133$208.49MInstitution
Deep Track Capital LP2.86%4,564,207$196.40MInstitution
Citadel Advisors LLC2.18%3,480,062$149.75MInstitution

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IONS vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
IONS96.71%3.29%Net SellingNet Selling
RVMD90.58%9.42%Net BuyingNet Buying
MDGL26.25%73.75%Net SellingNet Buying
JAZZ28.19%71.81%Net SellingNet Buying
LEGN23.52%0.00%
View Top Biotech Stocks

Ionis Pharmaceuticals Stock Ownership FAQ

Who owns Ionis Pharmaceuticals?

Ionis Pharmaceuticals (NASDAQ: IONS) is owned by 104.36% institutional shareholders, 3.55% 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 $107.58M.

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