Type / Class
Equity / Common Stock, par value $0.0001 per share
Shares outstanding
13.3M
Number of holders
49
Total 13F shares, excl. options
2.95M
Shares change
-1.41M
Total reported value, excl. options
$19.3M
Value change
-$7.68M
Put/Call ratio
0.52
Number of buys
14
Number of sells
-23
Price
$6.54

Significant Holders of Karyopharm Therapeutics Inc. - Common Stock, par value $0.0001 per share (KPTI) as of Q3 2025

61 filings reported holding KPTI - Karyopharm Therapeutics Inc. - Common Stock, par value $0.0001 per share as of Q3 2025.
Karyopharm Therapeutics Inc. - Common Stock, par value $0.0001 per share (KPTI) has 49 institutional shareholders that have filed 13F forms with the Securities Exchange Commission (SEC). These institutions hold a total of 2.95M shares of 13.3M outstanding shares and own 22.22% of the company stock.
Largest 10 shareholders include T. Rowe Price Investment Management, Inc. (701K shares), ADAGE CAPITAL PARTNERS GP, L.L.C. (421K shares), VANGUARD GROUP INC (408K shares), BlackRock, Inc. (232K shares), Catalio Capital Management, LP (143K shares), Avidity Partners Management LP (135K shares), MARSHALL WACE, LLP (128K shares), C WorldWide Group Holding A/S (100K shares), GEODE CAPITAL MANAGEMENT, LLC (93.3K shares), and GROUP ONE TRADING LLC (68.4K shares).
This table shows the top 49 institutional shareholders of the company equity. This data is sourced directly from the SEC via 13F filings.
Investor Option Weight % Change % Value $ * Price $ Shares Share Change Activity Report Period
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.