Karyopharm Therapeutics Inc. - KPTI

Detailed investor-level table based on 13F positions.
Early Q1 2026 data: only 3 institutional holders reported so far. The full shareholder list will grow as more funds file with the SEC.

Shareholders (13F)

Quarter: Q4 2025 · Compare: Q3 2025
13D/13G major owners: Ownership tab.
Methodology: Market value and % of portfolio use SEC reported VALUE ($000). For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received. Details.
Rows: 0
Investor History Status Shares held Market value ($000) % of portfolio Previous % Rank Change in shares % change in shares Source Date reported
Opaleye Management Inc. History New 930,000 6,844 0.9% 1 +930,000 New Q4 2025 Apr 13, 2026
Affinity Asset Advisors, LLC History Added to 889,575 6,547 0.37% 0.09% 2 +731,975 464.45% Q4 2025 Feb 13, 2026
SUSQUEHANNA INTERNATIONAL GROUP, LLP History Added to 834,898 6,144 0.0% 0.0% 3 +552,859 196.02% Q4 2025 Feb 17, 2026
T. Rowe Price Investment Management, Inc. History Reduced 585,908 4,313 0.0% 0.0% 4 -115,084 -16.42% Q4 2025 Feb 19, 2026
VANGUARD GROUP INC History Added to 559,619 4,118 0.0% 0.0% 5 +151,397 37.09% Q4 2025 Jan 29, 2026
Ikarian Capital, LLC History Added to 544,554 4,007 0.31% 0.02% 6 +517,297 1897.85% Q4 2025 Feb 18, 2026
Soleus Capital Management, L.P. History New 440,000 3,238 0.12% 7 +440,000 New Q4 2025 Feb 12, 2026
ADAGE CAPITAL PARTNERS GP, L.L.C. History No change 421,322 3,100 0.0% 0.0% 8 0 0.0% Q4 2025 Feb 17, 2026
DAVIDSON KEMPNER CAPITAL MANAGEMENT LP History New 310,020 2,281 0.04% 9 +310,020 New Q4 2025 Feb 17, 2026
BRAIDWELL LP History New 303,370 2,232 0.07% 10 +303,370 New Q4 2025 Feb 17, 2026
Exome Asset Management LLC History Added to 295,541 2,175 1.04% 0.19% 11 +247,441 514.43% Q4 2025 Feb 13, 2026
AMERIPRISE FINANCIAL INC History New 276,881 2,037 0.0% 12 +276,881 New Q4 2025 Feb 17, 2026
Boxer Capital Management, LLC History New 252,536 1,858 0.41% 13 +252,536 New Q4 2025 Feb 17, 2026
BlackRock, Inc. History Added to 247,558 1,822 0.0% 0.0% 14 +15,607 6.73% Q4 2025 Feb 12, 2026
GEODE CAPITAL MANAGEMENT, LLC History Added to 187,734 1,381 0.0% 0.0% 15 +94,445 101.24% Q4 2025 Feb 09, 2026
GROUP ONE TRADING LLC History Added to 180,919 1,331 0.0% 0.0% 16 +78,683 76.96% Q4 2025 Feb 12, 2026
SIMPLEX TRADING, LLC History Added to 164,668 1,211 0.0% 0.0% 17 +110,606 204.59% Q4 2025 Feb 11, 2026
TWO SIGMA INVESTMENTS, LP History New 148,793 1,095 0.0% 18 +148,793 New Q4 2025 Feb 17, 2026
BOOTHBAY FUND MANAGEMENT, LLC History New 144,628 1,064 0.02% 19 +144,628 New Q4 2025 Feb 17, 2026
Catalio Capital Management, LP History No change 142,984 1,052 0.19% 0.17% 20 0 0.0% Q4 2025 Feb 17, 2026
CITADEL ADVISORS LLC History Added to 135,509 997 0.0% 0.0% 21 +43,509 47.29% Q4 2025 Feb 17, 2026
Avidity Partners Management LP History No change 134,566 990 0.29% 0.2% 22 0 0.0% Q4 2025 Feb 13, 2026
MARSHALL WACE, LLP History No change 128,451 945 0.0% 0.0% 23 0 0.0% Q4 2025 Feb 13, 2026
C WorldWide Group Holding A/S History No change 100,000 736 0.01% 0.01% 24 0 0.0% Q4 2025 Feb 04, 2026
Walleye Capital LLC History New 95,672 704 0.0% 25 +95,672 New Q4 2025 Feb 13, 2026
JANE STREET GROUP, LLC History Added to 91,333 672 0.0% 0.0% 26 +78,433 608.01% Q4 2025 Feb 12, 2026
TWO SIGMA ADVISERS, LP History New 89,729 660 0.0% 27 +89,729 New Q4 2025 Feb 17, 2026
UBS Group AG History Added to 88,455 651 0.0% 0.0% 28 +28,770 48.2% Q4 2025 Jan 29, 2026
BRIDGEWAY CAPITAL MANAGEMENT, LLC History Added to 65,873 484 0.01% 0.0% 29 +31,000 88.89% Q4 2025 Feb 17, 2026
Context Capital Management, LLC History New 62,995 463 0.01% 30 +62,995 New Q4 2025 Feb 13, 2026
RENAISSANCE TECHNOLOGIES LLC History Reduced 59,914 440 0.0% 0.0% 31 -4,800 -7.42% Q4 2025 Feb 12, 2026
Quadrature Capital Ltd History New 59,708 439 0.0% 32 +59,708 New Q4 2025 Feb 17, 2026
STATE STREET CORP History Added to 58,942 433 0.0% 0.0% 33 +12,600 27.19% Q4 2025 Feb 13, 2026
ROYAL BANK OF CANADA History New 58,000 427 0.0% 34 +58,000 New Q4 2025 Feb 17, 2026
Connor, Clark & Lunn Investment Management Ltd. History New 57,212 421 0.0% 35 +57,212 New Q4 2025 Feb 10, 2026
Jump Financial, LLC History New 53,816 396 0.0% 36 +53,816 New Q4 2025 Feb 17, 2026
DAFNA Capital Management LLC History New 51,000 375 0.09% 37 +51,000 New Q4 2025 Feb 17, 2026
ADAR1 Capital Management, LLC History Added to 50,000 368 0.03% 0.02% 38 +25,000 100.0% Q4 2025 Feb 18, 2026
BANK OF AMERICA CORP /DE/ History Added to 48,088 353 0.0% 39 +47,994 51057.45% Q4 2025 Feb 17, 2026
Trexquant Investment LP History New 41,733 307 0.0% 40 +41,733 New Q4 2025 Feb 17, 2026
SILVERBACK ASSET MANAGEMENT LLC History No change 40,000 294 0.04% 0.02% 41 0 0.0% Q4 2025 Feb 17, 2026
NORTHERN TRUST CORP History Added to 29,023 213 0.0% 0.0% 42 +10,147 53.76% Q4 2025 Feb 17, 2026
PRELUDE CAPITAL MANAGEMENT, LLC History New 28,723 211 0.02% 43 +28,723 New Q4 2025 Feb 17, 2026
Baird Financial Group, Inc. History Added to 27,993 206 0.0% 0.0% 44 +2,061 7.95% Q4 2025 Feb 13, 2026
Persistent Asset Partners Ltd History New 18,316 134 0.06% 45 +18,316 New Q4 2025 Feb 17, 2026
TUDOR INVESTMENT CORP ET AL History New 12,922 95 0.0% 46 +12,922 New Q4 2025 Feb 17, 2026
Belvedere Trading LLC History Reduced 12,300 90 0.0% 0.0% 47 -2,763 -18.34% Q4 2025 Feb 10, 2026
XTX Topco Ltd History Reduced 11,904 87 0.0% 0.0% 48 -2,498 -17.34% Q4 2025 Feb 17, 2026
Bank of New York Mellon Corp History Added to 11,087 81 0.0% 0.0% 50 +1 0.01% Q4 2025 Feb 10, 2026
PRICE T ROWE ASSOCIATES INC /MD/ History No change 10,886 81 0.0% 0.0% 49 0 0.0% Q4 2025 Feb 17, 2026
MORGAN STANLEY History Reduced 8,858 65 0.0% 0.0% 51 -16,908 -65.62% Q4 2025 Feb 13, 2026
BARCLAYS PLC History No change 4,109 30 0.0% 0.0% 52 0 0.0% Q4 2025 Feb 13, 2026
ACADIAN ASSET MANAGEMENT LLC History New 3,726 27 0.0% 53 +3,726 New Q4 2025 Feb 10, 2026
TD Waterhouse Canada Inc. History No change 3,203 23 0.0% 0.0% 54 0 0.0% Q4 2025 Jan 27, 2026
JPMORGAN CHASE & CO History Reduced 1,741 12 0.0% 0.0% 55 -763,409 -99.77% Q4 2025 Feb 11, 2026
Corient Private Wealth LLC History New 10,039 10 0.0% 56 +10,039 New Q4 2025 Mar 09, 2026
Rockefeller Capital Management L.P. History New 733 5 0.0% 57 +733 New Q4 2025 Mar 16, 2026
FMR LLC History No change 679 4 0.0% 0.0% 58 0 0.0% Q4 2025 Feb 17, 2026
Aspect Partners, LLC History New 391 2 0.0% 60 +391 New Q4 2025 Jan 23, 2026
OSAIC HOLDINGS, INC. History Reduced 282 2 0.0% 0.0% 59 -64 -18.5% Q4 2025 Feb 17, 2026
Quent Capital, LLC History Added to 235 1 0.0% 0.0% 61 +4 1.73% Q4 2025 Jan 29, 2026
Birchview Capital, LP History Closed out 0 0 0.14% -27,985 -100.0% Q3 2025 Nov 13, 2025
GOLDMAN SACHS GROUP INC History Closed out 0 0 0.0% -24,885 -100.0% Q3 2025 Nov 14, 2025
GSA CAPITAL PARTNERS LLP History Closed out 0 0 0.01% -14,076 -100.0% Q3 2025 Nov 07, 2025
NATIONAL BANK OF CANADA /FI/ History Closed out 0 0 0.0% -1,153 -100.0% Q3 2025 Nov 14, 2025
Tower Research Capital LLC (TRC) History Closed out 0 0 0.0% -1,089 -100.0% Q3 2025 Nov 14, 2025
CITIGROUP INC History Reduced 1 0 0.0% -512 -99.81% Q4 2025 Feb 13, 2026
Rise Advisors, LLC History Closed out 0 0 -131 -100.0% Q3 2025 Oct 08, 2025
Fortitude Family Office, LLC History Closed out 0 0 -81 -100.0% Q3 2025 Oct 17, 2025
Allworth Financial LP History New 26 0 +26 New Q4 2025 Feb 05, 2026
Bruce G. Allen Investments, LLC History Closed out 0 0 -22 -100.0% Q3 2025 Oct 30, 2025
Advisory Services Network, LLC History Closed out 0 0 -12 -100.0% Q3 2025 Nov 18, 2025
PITTENGER & ANDERSON INC History Closed out 0 0 -3 -100.0% Q3 2025 Nov 03, 2025
HARBOUR INVESTMENTS, INC. History No change 85 0 0 0.0% Q4 2025 Feb 09, 2026
BNP PARIBAS FINANCIAL MARKETS History No change 82 0 0 0.0% Q4 2025 Feb 10, 2026
CIBC Private Wealth Group LLC History No change 3 0 0 0.0% Q4 2025 Feb 12, 2026
West Branch Capital LLC History No change 3 0 0 0.0% Q4 2025 Jan 16, 2026
SBI Securities Co., Ltd. History No change 74 0 0 0.0% Q4 2025 Feb 03, 2026
Activest Wealth Management History No change 66 0 0 0.0% Q4 2025 Jan 30, 2026
MB, LEVIS & ASSOCIATES, LLC History No change 100 0 0 0.0% Q4 2025 Jan 14, 2026