KARYOPHARM THERAPEUTICS INC (KPTI) Institutional Ownership and Insiders Activity

KARYOPHARM THERAPEUTICS INC (KPTI) is widely held by institutional investors, with 100 firms reporting positions valued at approximately $198.94M based on SEC Form 13F filings for the quarter ended June 30, 2026.

Ra Capital Management, L.P. is the largest disclosed holder, reporting approximately $18.73M in KPTI holdings in its latest filing.

Recent insider activity includes 6 tracked Form 4 transactions over the last three months, reflecting ongoing executive and director trading activity.

Institutional Holders

100

Total Reported Value

$198.94M

Largest Holder

Ra Capital Management, L.P.

Largest Position

$18.73M

Insider Transactions (90d)

6

Latest Filing Quarter

Q2 2026

New Institutional Positions

36

Funds Exiting Positions

14