Karyopharm Therapeutics Inc. - KPTI
Ownership (Schedule 13D / 13G) · latest 50 filings
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| Filed | Form | Reporting person | Percent | Shares | SEC |
|---|---|---|---|---|---|
| Apr 13, 2026 | SCHEDULE 13G/A | Integrated Core Strategies (US) LLC | 1.9% | 423,982 | View |
| Apr 13, 2026 | SCHEDULE 13G/A | Millennium Management LLC | 2.3% | 511,571 | View |
| Apr 13, 2026 | SCHEDULE 13G/A | Millennium Group Management LLC | 2.3% | 511,571 | View |
| Apr 13, 2026 | SCHEDULE 13G/A | Israel A. Englander | 2.3% | 511,571 | View |
| Apr 02, 2026 | SCHEDULE 13G | Commodore Capital LP | 9.9% | 1,950,000 | View |
| Apr 02, 2026 | SCHEDULE 13G | Commodore Capital Master LP | 9.9% | 1,950,000 | View |
| Apr 02, 2026 | SCHEDULE 13G | Robert Egen Atkinson | 9.9% | 1,950,000 | View |
| Apr 02, 2026 | SCHEDULE 13G | Michael Kramarz | 9.9% | 1,950,000 | View |
| Apr 02, 2026 | SCHEDULE 13G | RA Capital Management, L.P. | 9.9% | 2,078,913 | View |
| Apr 02, 2026 | SCHEDULE 13G | Peter Kolchinsky | 9.9% | 2,078,913 | View |
| Apr 02, 2026 | SCHEDULE 13G | Rajeev Shah | 9.9% | 2,078,913 | View |
| Apr 02, 2026 | SCHEDULE 13G | RA Capital Healthcare Fund, L.P. | 9.9% | 2,078,913 | View |
| Feb 17, 2026 | SCHEDULE 13G/A | T. Rowe Price Investment Management, Inc. | 11.8% | 2,244,421 | View |
| Feb 12, 2026 | SCHEDULE 13G/A | Adage Capital Management, L.P. | 2.38% | 436,736 | View |
| Feb 12, 2026 | SCHEDULE 13G/A | Robert Atchinson | 2.38% | 436,736 | View |
| Feb 12, 2026 | SCHEDULE 13G/A | Phillip Gross | 2.38% | 436,736 | View |
| Feb 10, 2026 | SCHEDULE 13G | Integrated Core Strategies (US) LLC | 5.4% | 997,577 | View |
| Feb 10, 2026 | SCHEDULE 13G | Millennium Management LLC | 5.5% | 1,008,662 | View |
| Feb 10, 2026 | SCHEDULE 13G | Millennium Group Management LLC | 5.5% | 1,008,662 | View |
| Feb 10, 2026 | SCHEDULE 13G | Israel A. Englander | 5.5% | 1,008,662 | View |
| Jan 29, 2026 | SCHEDULE 13G/A | Affinity Asset Advisors, LLC | 8.6% | 1,713,092 | View |
| Jan 29, 2026 | SCHEDULE 13G/A | Michael Cho | 8.6% | 1,713,092 | View |
| Nov 14, 2025 | SCHEDULE 13G/A | HIGHBRIDGE CAPITAL MANAGEMENT, LLC | 4.9% | 649,984 | View |
| Nov 07, 2025 | SCHEDULE 13G/A | T. Rowe Price Investment Management, Inc. | 13.8% | 2,304,242 | View |
| Nov 03, 2025 | SCHEDULE 13G/A | J. Wood Capital Advisors LLC | 4.99% | 1,000,708 | View |
| Nov 03, 2025 | SCHEDULE 13G/A | Jason Wood | 4.99% | 1,000,708 | View |
| Oct 30, 2025 | SCHEDULE 13G/A | The Vanguard Group | 4.7% | 408,222 | 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.