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NASDAQ: KPTI
Karyopharm Therapeutics Inc Stock Ownership - Who owns Karyopharm Therapeutics?

OverviewForecastEarningsRevenueDividendOwnership

Insider buying vs selling

Have Karyopharm Therapeutics Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Stuart PoultonEVP;CXO2026-07-28189$7.10
$1.34kSell
Reshma RangwalaEVP Chief Medical Officer2026-05-14408$9.50
$3.88kSell
Kristin AbateChief Accounting Officer2026-05-1453$9.50
$503.50Sell
Sohanya Roshan ChengEVP Chief Commercial Officer2026-05-14324$9.50
$3.08kSell
Michael ManoEVP CLOSecretary2026-05-14266$9.50
$2.53kSell
Richard A. PaulsonPresident and CEO2026-05-142,203$9.50
$20.93kSell
Stuart PoultonEVP Chief Development Officer2026-05-14403$9.50
$3.83kSell
Reshma RangwalaEVP Chief Medical Officer2026-04-21449$8.94
$4.01kSell
Kristin AbateChief Accounting Officer2026-03-02559$9.41
$5.26kSell
Stuart PoultonEVP Chief Development Officer2026-03-025,101$9.41
$48.00kSell

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Net Insider Buy/Sell (L12M) Ownership

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KPTI Shareholders

What type of owners hold Karyopharm Therapeutics Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Chione Ltd71.74%16,258,079$31.22MInsider
Plio Ltd27.96%6,336,946$12.17MInsider
Marcin Czernik26.17%5,930,939$11.39MInsider
Deepika Pakianathan10.14%2,298,851$4.41MInsider
Commodore Capital LP8.60%1,950,000$3.74MInstitution
Ra Capital Management LP8.46%1,917,354$3.68MInstitution
Adage Capital Partners GP LLC7.97%1,806,322$3.47MInstitution
Sharon Shacham7.38%1,671,888$3.21MInsider
Michael Kauffman7.11%1,611,888$3.09MInsider
T Rowe Price Investment Management Inc6.80%1,542,090$2.96MInstitution

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KPTI vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
KPTI33.55%66.45%Net SellingNet Selling
RNXT18.99%10.26%Net BuyingNet Buying
MGX17.17%34.06%Net BuyingNet Selling
EDSA21.11%78.89%Net BuyingNet Buying
IBO3.45%2.84%Net Selling
View Top Biotech Stocks

Karyopharm Therapeutics Stock Ownership FAQ

Who owns Karyopharm Therapeutics?

Karyopharm Therapeutics (NASDAQ: KPTI) is owned by 80.00% institutional shareholders, 158.43% Karyopharm Therapeutics insiders, and 0.00% retail investors. Chione Ltd is the largest individual Karyopharm Therapeutics shareholder, owning 16.26M shares representing 71.74% of the company. Chione Ltd's Karyopharm Therapeutics shares are currently valued at $31.22M.

If you're new to stock investing, here's how to buy Karyopharm Therapeutics stock.
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