ASSEMBLY BIOSCIENCES, INC. - ASMB

Detailed investor-level table based on 13F positions.

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
GILEAD SCIENCES, INC. History No change 4,505,391 153,228 7.92% 6.44% 1 0 0.0% Q4 2025 Feb 12, 2026
FARALLON CAPITAL MANAGEMENT LLC History No change 1,227,590 41,750 0.2% 0.13% 2 0 0.0% Q4 2025 Feb 17, 2026
RA CAPITAL MANAGEMENT, L.P. History No change 1,020,410 34,704 0.36% 0.32% 3 0 0.0% Q4 2025 Feb 17, 2026
Commodore Capital LP History No change 1,000,000 34,010 2.26% 1.25% 4 0 0.0% Q4 2025 Feb 17, 2026
JANUS HENDERSON GROUP PLC History Added to 837,925 28,539 0.01% 0.01% 5 +85,299 11.33% Q4 2025 Feb 17, 2026
Paradigm Biocapital Advisors LP History New 665,251 22,625 0.58% 6 +665,251 New Q4 2025 Feb 17, 2026
Point72 Asset Management, L.P. History Added to 600,609 20,426 0.02% 0.01% 7 +304,592 102.9% Q4 2025 Feb 17, 2026
VANGUARD GROUP INC History Added to 572,898 19,484 0.0% 0.0% 8 +70,786 14.1% Q4 2025 Jan 29, 2026
Blackstone Inc. History Reduced 318,754 10,840 0.04% 0.05% 9 -129,035 -28.82% Q4 2025 Feb 17, 2026
Parkman Healthcare Partners LLC History Reduced 249,357 8,480 0.81% 0.67% 10 -1,624 -0.65% Q4 2025 Feb 17, 2026
FRANKLIN RESOURCES INC History Reduced 210,528 7,160 0.0% 0.0% 11 -27,641 -11.61% Q4 2025 Feb 11, 2026
BlackRock, Inc. History Added to 192,296 6,539 0.0% 0.0% 12 +22,097 12.98% Q4 2025 Feb 12, 2026
B Group, Inc. History No change 175,706 5,975 4.41% 3.31% 13 0 0.0% Q4 2025 Feb 17, 2026
ADAGE CAPITAL PARTNERS GP, L.L.C. History New 161,000 5,475 0.01% 14 +161,000 New Q4 2025 Feb 17, 2026
Eversept Partners, LP History New 159,676 5,430 0.27% 15 +159,676 New Q4 2025 Feb 17, 2026
STEMPOINT CAPITAL LP History Added to 156,728 5,330 0.91% 0.34% 16 +90,598 137.0% Q4 2025 Feb 17, 2026
GEODE CAPITAL MANAGEMENT, LLC History Added to 131,307 4,467 0.0% 0.0% 17 +1,212 0.93% Q4 2025 Feb 09, 2026
MARSHALL WACE, LLP History Added to 129,075 4,389 0.0% 0.0% 18 +43,860 51.47% Q4 2025 Feb 13, 2026
Patient Square Capital LP History Reduced 127,000 4,319 0.92% 0.93% 19 -8,182 -6.05% Q4 2025 Feb 12, 2026
Caption Management, LLC History Reduced 106,591 3,625 0.02% 0.07% 20 -243,209 -69.53% Q4 2025 Feb 17, 2026
MILLENNIUM MANAGEMENT LLC History Added to 98,221 3,340 0.0% 0.0% 21 +76,613 354.56% Q4 2025 Feb 17, 2026
SUSQUEHANNA INTERNATIONAL GROUP, LLP History Reduced 80,394 2,734 0.0% 0.0% 22 -145,632 -64.43% Q4 2025 Feb 17, 2026
Seven Fleet Capital Management LP History New 73,762 2,508 1.7% 23 +73,762 New Q4 2025 Apr 02, 2026
SUPERSTRING CAPITAL MANAGEMENT LP History New 65,273 2,219 1.19% 24 +65,273 New Q4 2025 Feb 17, 2026
Schonfeld Strategic Advisors LLC History Reduced 54,235 1,844 0.01% 0.02% 25 -67,653 -55.5% Q4 2025 Feb 17, 2026
JANE STREET GROUP, LLC History Added to 53,702 1,826 0.0% 0.0% 26 +19,874 58.75% Q4 2025 Feb 12, 2026
STATE STREET CORP History Added to 52,989 1,802 0.0% 0.0% 27 +8,175 18.24% Q4 2025 Feb 13, 2026
JPMORGAN CHASE & CO History Added to 48,159 1,637 0.0% 28 +48,152 687885.71% Q4 2025 Feb 11, 2026
Qube Research & Technologies Ltd History Added to 42,185 1,434 0.0% 0.0% 29 +31,155 282.46% Q4 2025 Feb 17, 2026
NORTHERN TRUST CORP History Added to 41,227 1,402 0.0% 0.0% 30 +1,272 3.18% Q4 2025 Feb 17, 2026
MONIMUS CAPITAL MANAGEMENT, LP History Reduced 38,301 1,302 0.86% 0.66% 31 -3,766 -8.95% Q4 2025 Feb 17, 2026
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP History New 37,812 1,285 0.0% 32 +37,812 New Q4 2025 Feb 13, 2026
Palumbo Wealth Management LLC History Added to 37,305 1,268 0.31% 0.28% 33 +2,507 7.2% Q4 2025 Jan 21, 2026
GOLDMAN SACHS GROUP INC History Added to 34,794 1,183 0.0% 0.0% 34 +17,138 97.07% Q4 2025 Mar 25, 2026
CITADEL ADVISORS LLC History Reduced 32,866 1,117 0.0% 0.0% 35 -21,012 -39.0% Q4 2025 Feb 17, 2026
Informed Momentum Co LLC History Added to 29,523 1,004 0.11% 0.09% 36 +451 1.55% Q4 2025 Feb 12, 2026
Trexquant Investment LP History Added to 28,276 961 0.01% 0.0% 37 +15,750 125.74% Q4 2025 Feb 17, 2026
683 Capital Management, LLC History New 27,863 947 0.04% 38 +27,863 New Q4 2025 Feb 17, 2026
Ellsworth Advisors, LLC History Reduced 29,735 889 0.18% 0.18% 39 -215 -0.72% Q4 2025 Jan 16, 2026
FEDERATED HERMES, INC. History No change 25,394 863 0.0% 0.0% 40 0 0.0% Q4 2025 Feb 12, 2026
BARCLAYS PLC History Added to 24,741 841 0.0% 0.0% 41 +20,780 524.61% Q4 2025 Feb 13, 2026
MORGAN STANLEY History Added to 22,534 766 0.0% 0.0% 42 +19,007 538.9% Q4 2025 Feb 13, 2026
Connor, Clark & Lunn Investment Management Ltd. History Added to 20,802 707 0.0% 0.0% 43 +9,646 86.46% Q4 2025 Feb 10, 2026
ADAR1 Capital Management, LLC History Added to 19,747 671 0.05% 0.05% 44 +800 4.22% Q4 2025 Feb 18, 2026
SEI INVESTMENTS CO History New 17,745 603 0.0% 45 +17,745 New Q4 2025 Feb 13, 2026
OMERS ADMINISTRATION Corp History New 15,598 530 0.0% 46 +15,598 New Q4 2025 Feb 13, 2026
Hudson Bay Capital Management LP History New 15,050 511 0.0% 47 +15,050 New Q4 2025 Feb 13, 2026
Susquehanna Portfolio Strategies, LLC History New 13,903 472 0.01% 48 +13,903 New Q4 2025 Feb 17, 2026
RAYMOND JAMES FINANCIAL INC History New 13,082 444 0.0% 49 +13,082 New Q4 2025 Feb 18, 2026
GSA CAPITAL PARTNERS LLP History Added to 12,699 432 0.04% 0.03% 50 +279 2.25% Q4 2025 Feb 06, 2026
ACADIAN ASSET MANAGEMENT LLC History Reduced 12,446 422 0.0% 0.0% 51 -10,844 -46.56% Q4 2025 Feb 10, 2026
Engineers Gate Manager LP History New 10,375 352 0.0% 52 +10,375 New Q4 2025 Feb 17, 2026
UBS Group AG History Reduced 9,779 332 0.0% 0.0% 53 -5,984 -37.96% Q4 2025 Jan 29, 2026
RENAISSANCE TECHNOLOGIES LLC History Reduced 9,240 314 0.0% 0.01% 54 -144,371 -93.98% Q4 2025 Feb 12, 2026
Virtus Investment Advisers, LLC History New 7,369 250 0.07% 55 +7,369 New Q4 2025 Feb 17, 2026
CHARLES SCHWAB INVESTMENT MANAGEMENT INC History New 6,704 228 0.0% 56 +6,704 New Q4 2025 Feb 13, 2026
BANK OF AMERICA CORP /DE/ History Added to 5,110 173 0.0% 0.0% 57 +1,739 51.59% Q4 2025 Feb 17, 2026
CANADA PENSION PLAN INVESTMENT BOARD History New 3,500 119 0.0% 58 +3,500 New Q4 2025 Feb 17, 2026
CITIGROUP INC History New 2,201 74 0.0% 59 +2,201 New Q4 2025 Feb 13, 2026
Tower Research Capital LLC (TRC) History New 607 20 0.0% 60 +607 New Q4 2025 Feb 17, 2026
NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO History No change 260 8 0.0% 0.0% 61 0 0.0% Q4 2025 Feb 10, 2026
RHUMBLINE ADVISERS History No change 190 6 0.0% 0.0% 62 0 0.0% Q4 2025 Feb 13, 2026
Farther Finance Advisors, LLC History New 154 5 0.0% 63 +154 New Q4 2025 Jan 23, 2026
OSAIC HOLDINGS, INC. History No change 100 3 0.0% 0.0% 64 0 0.0% Q4 2025 Feb 17, 2026
US BANCORP \DE\ History New 59 2 0.0% 65 +59 New Q4 2025 Jan 30, 2026
Allworth Financial LP History New 32 1 0.0% 66 +32 New Q4 2025 Feb 05, 2026
EverSource Wealth Advisors, LLC History No change 55 1 0.0% 0.0% 67 0 0.0% Q4 2025 Feb 06, 2026
Frazier Life Sciences Management, L.P. History Closed out 0 0 0.35% -456,249 -100.0% Q3 2025 Nov 14, 2025
MPM BioImpact LLC History Closed out 0 0 0.17% -39,665 -100.0% Q3 2025 Nov 14, 2025
Walleye Capital LLC History Closed out 0 0 0.0% -24,501 -100.0% Q3 2025 Nov 14, 2025
Quadrature Capital Ltd History Closed out 0 0 0.01% -17,935 -100.0% Q3 2025 Nov 13, 2025
BRIDGEWAY CAPITAL MANAGEMENT, LLC History Closed out 0 0 0.01% -15,225 -100.0% Q3 2025 Nov 14, 2025
XTX Topco Ltd History Closed out 0 0 0.02% -12,806 -100.0% Q3 2025 Nov 14, 2025
WELLS FARGO & COMPANY/MN History Closed out 0 0 0.0% -145 -100.0% Q3 2025 Nov 13, 2025
SBI Securities Co., Ltd. History Closed out 0 0 0.0% -68 -100.0% Q3 2025 Nov 05, 2025
BNP PARIBAS FINANCIAL MARKETS History Reduced 2 0 0.0% -56 -96.55% Q4 2025 Feb 10, 2026
QUADRANT CAPITAL GROUP LLC History No change 22 0 0 0.0% Q4 2025 Feb 13, 2026