Karyopharm Therapeutics Ownership & Insider Activity

Karyopharm Therapeutics (KPTI) institutional and insider ownership, recent insider transactions and ownership breakdown.

Insiders own 15.5% of shares outstanding. Institutional investors hold 21.9%. Over the past 90 days, insiders made 1 sale worth $1K.

Shares Outstanding

22.681M

Shares Float

22.567M

Insider Shares Owned

3.484M

Insider % Owned

15.5%

Institutional Shares Held

4.969M

Institutional % Held

21.9%

Ownership Breakdown

Net Insider Activity by Month

Purchases (90d)

Sales (90d)

$1K total

Net Activity

Net Selling

Net Value (90d)

-$1K

Karyopharm Therapeutics Insider Transactions (Last 6 Months)

Date	Insider	Title	Type	Shares	Price	Value
Jul 28, 2026	Stuart Poulton	EVP, CHIEF DEVELOPMENT OFFICER	SELL	189.000	$7.10	$1K
May 13, 2026	Stuart Poulton	EVP, CHIEF DEVELOPMENT OFFICER	GRANT	493.000	$9.50	$4K
May 13, 2026	Reshma Rangwala	EVP & CHIEF MEDICAL OFFICER	GRANT	539.000	$9.50	$4K
May 13, 2026	Sohanya Cheng	EVP & CHIEF COMMERCIAL OFFICER	GRANT	623.000	$9.50	$3K
May 13, 2026	Kristin Abate	CHIEF ACCOUNTING OFFICER	GRANT	68.000	$9.50	$504
May 13, 2026	Richard Paulson	PRESIDENT AND CEO	GRANT	2.717K	$9.50	$21K
May 13, 2026	Michael Mano	EVP, CLO&SECRETARY	GRANT	434.000	$9.50	$3K
Apr 21, 2026	Reshma Rangwala	EVP & CHIEF MEDICAL OFFICER	SELL	449.000	$8.94	$4K
Mar 2, 2026	Kristin Abate	CHIEF ACCOUNTING OFFICER	SELL	559.000	$9.41	$5K
Mar 2, 2026	Michael Mano	EVP, CLO&SECRETARY	SELL	3.526K	$9.41	$33K
Mar 2, 2026	Sohanya Cheng	EVP & CHIEF COMMERCIAL OFFICER	SELL	4.604K	$9.41	$43K
Mar 2, 2026	Reshma Rangwala	EVP & CHIEF MEDICAL OFFICER	SELL	5.066K	$9.41	$48K
Mar 2, 2026	Richard Paulson	PRESIDENT AND CEO	SELL	12.361K	$9.41	$116K
Mar 2, 2026	Stuart Poulton	EVP, CHIEF DEVELOPMENT OFFICER	SELL	5.101K	$9.41	$48K