Karyopharm Therapeutics Inc. - KPTI
Ownership (Schedule 13D / 13G) · latest 50 filings
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| Filed | Form | Reporting person | Percent | Shares | SEC |
|---|---|---|---|---|---|
| Oct 28, 2026 | SCHEDULE 13G/A | Integrated Core Strategies (US) LLC | 0.2% | 42,888 | View |
| Oct 28, 2026 | SCHEDULE 13G/A | Millennium Management LLC | 0.2% | 42,888 | View |
| Oct 28, 2026 | SCHEDULE 13G/A | Millennium Group Management LLC | 0.2% | 42,888 | View |
| Oct 28, 2026 | SCHEDULE 13G/A | Israel A. Englander | 0.2% | 42,888 | View |
| Oct 08, 2026 | SCHEDULE 13G/A | ACORN BIOVENTURES, L.P. | 1.9% | 429,101 | View |
| Oct 08, 2026 | SCHEDULE 13G/A | ACORN CAPITAL ADVISORS GP, LLC | 1.9% | 429,101 | View |
| Oct 08, 2026 | SCHEDULE 13G/A | ACORN BIOVENTURES 2, L.P. | 2.6% | 592,567 | View |
| Oct 08, 2026 | SCHEDULE 13G/A | Acorn Capital Advisors GP 2, LLC | 2.6% | 592,567 | View |
| Oct 08, 2026 | SCHEDULE 13G/A | Anders Hove | 4.5% | 1,021,668 | View |
| Sep 25, 2026 | SCHEDULE 13G/A | ACORN BIOVENTURES, L.P. | 2.4% | 539,373 | View |
| Sep 25, 2026 | SCHEDULE 13G/A | ACORN CAPITAL ADVISORS GP, LLC | 2.4% | 539,373 | View |
| Sep 25, 2026 | SCHEDULE 13G/A | ACORN BIOVENTURES 2, L.P. | 3.3% | 744,848 | View |
| Sep 25, 2026 | SCHEDULE 13G/A | Acorn Capital Advisors GP 2, LLC | 3.3% | 744,848 | View |
| Sep 25, 2026 | SCHEDULE 13G/A | Anders Hove | 5.7% | 1,284,221 | View |
| Sep 25, 2026 | SCHEDULE 13G/A | ACORN BIOVENTURES, L.P. | 2.4% | 539,373 | View |
| Sep 25, 2026 | SCHEDULE 13G/A | ACORN CAPITAL ADVISORS GP, LLC | 2.4% | 539,373 | View |
| Sep 25, 2026 | SCHEDULE 13G/A | ACORN BIOVENTURES 2, L.P. | 3.3% | 744,848 | View |
| Sep 25, 2026 | SCHEDULE 13G/A | Acorn Capital Advisors GP 2, LLC | 3.3% | 744,848 | View |
| Sep 25, 2026 | SCHEDULE 13G/A | Anders Hove | 5.7% | 1,284,221 | View |
| Sep 04, 2026 | SCHEDULE 13G | Integrated Core Strategies (US) LLC | 5.7% | 1,297,297 | View |
| Sep 04, 2026 | SCHEDULE 13G | Millennium Management LLC | 5.7% | 1,297,297 | View |
| Sep 04, 2026 | SCHEDULE 13G | Millennium Group Management LLC | 5.7% | 1,297,297 | View |
| Sep 04, 2026 | SCHEDULE 13G | Israel A. Englander | 5.7% | 1,297,297 | View |
| Aug 14, 2026 | SCHEDULE 13G/A | RA Capital Management, L.P. | 9.9% | 2,302,504 | View |
| Aug 14, 2026 | SCHEDULE 13G/A | Peter Kolchinsky | 9.9% | 2,302,504 | View |
| Aug 14, 2026 | SCHEDULE 13G/A | Rajeev Shah | 9.9% | 2,302,504 | View |
| Aug 14, 2026 | SCHEDULE 13G/A | RA Capital Healthcare Fund, L.P. | 9.9% | 2,302,504 | View |
| Aug 14, 2026 | SCHEDULE 13G/A | Commodore Capital LP | 0.0% | 0 | View |
| Aug 14, 2026 | SCHEDULE 13G/A | Commodore Capital Master LP | 0.0% | 0 | View |
| Aug 14, 2026 | SCHEDULE 13G/A | Robert Egen Atkinson | 0.0% | 0 | View |
| Aug 14, 2026 | SCHEDULE 13G/A | Michael Kramarz | 0.0% | 0 | View |
| Aug 12, 2026 | SCHEDULE 13G/A | Adage Capital Management, L.P. | 6.78% | 1,536,736 | View |
| Aug 12, 2026 | SCHEDULE 13G/A | Robert Atchinson | 6.78% | 1,536,736 | View |
| Aug 12, 2026 | SCHEDULE 13G/A | Phillip Gross | 6.78% | 1,536,736 | View |
| Aug 11, 2026 | SCHEDULE 13G/A | THE GOLDMAN SACHS GROUP, INC. | 6.3% | 1,429,198 | View |
| Aug 11, 2026 | SCHEDULE 13G/A | GOLDMAN SACHS & CO. LLC | 6.3% | 1,429,198 | View |
| Jul 28, 2026 | SCHEDULE 13G | BlackRock, Inc. | 5.6% | 1,266,084 | View |
| Jun 05, 2026 | SCHEDULE 13G/A | T. Rowe Price Investment Management, Inc. | 6.6% | 1,539,147 | View |
| May 15, 2026 | SCHEDULE 13G | Ikarian Capital, LLC | 0.0% | 0 | View |
| May 15, 2026 | SCHEDULE 13G | Neil Shahrestani | 0.0% | 0 | View |
| May 15, 2026 | SCHEDULE 13G | ACORN BIOVENTURES, L.P. | 2.8% | 637,608 | View |
| May 15, 2026 | SCHEDULE 13G | ACORN CAPITAL ADVISORS GP, LLC | 2.8% | 637,608 | View |
| May 15, 2026 | SCHEDULE 13G | ACORN BIOVENTURES 2, L.P. | 3.9% | 880,505 | View |
| May 15, 2026 | SCHEDULE 13G | Acorn Capital Advisors GP 2, LLC | 3.9% | 880,505 | View |
| May 15, 2026 | SCHEDULE 13G | Anders Hove | 6.7% | 1,518,113 | View |
| May 14, 2026 | SCHEDULE 13G/A | Affinity Asset Advisors, LLC | 8.6% | 2,073,517 | View |
| May 14, 2026 | SCHEDULE 13G/A | Michael Cho | 8.6% | 2,073,517 | View |
| May 13, 2026 | SCHEDULE 13G | Adage Capital Management, L.P. | 8.08% | 1,821,736 | View |
| May 13, 2026 | SCHEDULE 13G | Robert Atchinson | 8.08% | 1,821,736 | View |
| May 13, 2026 | SCHEDULE 13G | Phillip Gross | 8.08% | 1,821,736 | View |
| May 12, 2026 | SCHEDULE 13G | THE GOLDMAN SACHS GROUP, INC. | 5.1% | 991,364 | View |
| May 12, 2026 | SCHEDULE 13G | GOLDMAN SACHS & CO. LLC | 5.1% | 991,364 | View |
| May 11, 2026 | SCHEDULE 13G/A | Opaleye Management Inc. | 2.67% | 619,089 | View |
| May 11, 2026 | SCHEDULE 13G/A | Opaleye, L.P. | 2.67% | 619,089 | View |
| May 11, 2026 | SCHEDULE 13G/A | James Silverman | 2.67% | 619,089 | View |
Percent = "% of class represented by amount beneficially owned" for this reporting person in the filed 13D/13G.
Shares = reported beneficial ownership amount for the same row (not portfolio shares from 13F).
Amendments (/A) can repeat the same holder over time, so rows should not be summed.
Extraction is best-effort from filing text and can be missing or noisy; verify exact figures via the SEC link in each row.