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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 Chief Development Officer2026-05-14403$9.50
$3.83kSell
Sohanya Roshan ChengEVP Chief Commercial Officer2026-05-14324$9.50
$3.08kSell
Reshma RangwalaEVP Chief Medical Officer2026-05-14408$9.50
$3.88kSell
Kristin AbateChief Accounting Officer2026-05-1453$9.50
$503.50Sell
Richard A. PaulsonPresident and CEO2026-05-142,203$9.50
$20.93kSell
Michael ManoEVP CLOSecretary2026-05-14266$9.50
$2.53kSell
Reshma RangwalaEVP Chief Medical Officer2026-04-21449$8.94
$4.01kSell
Michael ManoEVP CLOSecretary2026-03-023,526$9.41
$33.18kSell
Kristin AbateChief Accounting Officer2026-03-02559$9.41
$5.26kSell
Sohanya Roshan ChengEVP Chief Commercial Officer2026-03-024,604$9.41
$43.32kSell

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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$152.83MInsider
Plio Ltd27.96%6,336,946$59.57MInsider
Marcin Czernik26.17%5,930,939$55.75MInsider
Deepika Pakianathan10.14%2,298,851$21.61MInsider
Commodore Capital LP8.60%1,950,000$18.33MInstitution
Ra Capital Management LP8.46%1,917,354$18.02MInstitution
Adage Capital Partners GP LLC7.97%1,806,322$16.98MInstitution
Sharon Shacham7.38%1,671,888$15.72MInsider
Michael Kauffman7.11%1,611,888$15.15MInsider
T Rowe Price Investment Management Inc6.80%1,542,090$14.50MInstitution

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KPTI vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
KPTI33.55%66.45%Net SellingNet Selling
NKTX61.88%38.12%Net Selling
HUMA26.58%13.84%Net SellingNet Selling
PRQR32.57%1.54%
ALXO70.06%10.89%Net Buying
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 $146.65M.

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