KARYOPHARM THERAPEUTICS INC (KPTI) Institutional Ownership and Insiders Activity

KARYOPHARM THERAPEUTICS INC (KPTI) is widely held by institutional investors, with 1 firm reporting positions valued at approximately $419,641 based on SEC Form 13F filings for the quarter ended June 30, 2026.

Birchview Capital, Lp is the largest disclosed holder, reporting approximately $419,641 in KPTI holdings in its latest filing.

Institutional ownership remains highly concentrated, with Birchview Capital, Lp representing the majority of disclosed value.

Recent insider activity includes 1 tracked Form 4 transaction over the last three months, reflecting ongoing executive and director trading activity.