13F

Stock

Assembly Biosciences, Inc.

ASMB · held by 75 managers

Reported value

$375.1M

Holders

75

+13 new · −10 exited

Holders’ est. mark

−$76.5M

Price effect on 58 books still in the name

Largest holder

$125M

GILEAD SCIENCES, INC.

Notable conviction

Share of each notable manager’s 13F book.

Holder count by quarter

Who holds it

Notable only
InvestorSharesValueEst. markChange
GILEAD SCIENCES, INC.4.51M$125M−$28.2MCut−$28.2M
FARALLON CAPITAL MANAGEMENT LLC1.23M$34.1M−$7.68MCut−$7.68M
RA CAPITAL MANAGEMENT, L.P.1.02M$28.3M−$6.39MCut−$6.39M
Commodore Capital LP1M$27.8M−$6.26MCut−$6.26M
JANUS HENDERSON GROUP PLC849.3K$23.5M−$5.38MCut−$5.06M
Paradigm Biocapital Advisors LP665.3K$18.5M−$4.16MCut−$4.16M
VANGUARD CAPITAL MANAGEMENT LLC490.4K$13.6MHeld
Parkman Healthcare Partners LLC411.2K$11.4M−$1.56MAdded$2.93M
Point72 Asset Management, L.P.344.1K$9.55M−$2.15MCut−$10.9M
Blackstone Inc.296.9K$8.24M−$1.86MCut−$2.6M
MILLENNIUM MANAGEMENT LLC233.7K$6.48M−$614.9KAdded$3.14M
BlackRock, Inc.202.7K$5.63M−$1.2MCut−$913.9K
STEMPOINT CAPITAL LP185.4K$5.15M−$981.1KCut−$184.5K
B Group, Inc.175.7K$4.88M−$1.1MCut−$1.1M
MARSHALL WACE, LLP163.4K$4.53M−$808KAdded$144.5K
ADAGE CAPITAL PARTNERS GP, L.L.C.161K$4.47M−$1.01MCut−$1.01M
Patient Square Capital LP136.3K$3.78M−$795KCut−$536.5K
GEODE CAPITAL MANAGEMENT, LLC133K$3.69M−$822.3KCut−$776.1K
Schonfeld Strategic Advisors LLC120.5K$3.34M−$339.5KAdded$1.5M
Caption Management, LLC81.8K$2.27M−$512.3KCut−$1.35M
HighVista Strategies LLC74.7K$2.07MNew
VANGUARD FIDUCIARY TRUST CO71.6K$1.99MHeld
Qube Research & Technologies Ltd69.3K$1.92M−$264.1KAdded$487.1K
State Street56.7K$1.57M−$331.7KCut−$229K
Seven Fleet Capital Management LP56.1K$1.56M−$351.5KCut−$950.6K
JPMORGAN CHASE & CO54K$1.44M−$354.9KCut−$200.3K
MONIMUS CAPITAL MANAGEMENT, LP48.4K$1.34M−$239.8KAdded$40.2K
NORTHERN TRUST CORP41K$1.14M−$256.7KCut−$264K
Eversept Partners, LP40.9K$1.13M−$256KCut−$4.3M
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP39.4K$1.09M−$236.7KCut−$191.4K
GOLDMAN SACHS GROUP INC36.2K$1M−$217.8KCut−$178.7K
JANE STREET GROUP, LLC34.5K$957.3K−$216KCut−$869.1K
MORGAN STANLEY33.1K$917.3K−$141.1KAdded$150.9K
SUSQUEHANNA INTERNATIONAL GROUP, LLP32.9K$914.3K−$206.3KCut−$1.82M
683 Capital Management, LLC27.9K$773.2K−$174.4KCut−$174.4K
BARCLAYS PLC27.1K$750.6K−$154.9KCut−$90.8K
WELLINGTON MANAGEMENT GROUP LLP26.5K$735.3KNew
Citadel25.4K$705.9K−$159.2KCut−$411.9K
Squarepoint Ops LLC23.8K$660.6KNew
Trexquant Investment LP22.7K$631.1K−$142.4KCut−$330.6K
Connor, Clark & Lunn Investment Management Ltd.21.8K$603.9K−$130.2KCut−$103.6K
TWO SIGMA INVESTMENTS, LP20.6K$570.3KNew
ADAR1 Capital Management, LLC19.9K$553.5K−$123.6KCut−$118.1K
Palumbo Wealth Management LLC19.6K$545.1K−$123KCut−$723.6K
FEDERATED HERMES, INC.18.9K$524.6K−$118.3KCut−$339.1K
VANGUARD PORTFOLIO MANAGEMENT LLC17.7K$491.8KHeld
Hudson Bay Capital Management LP16.8K$466.2K−$94.2KCut−$45.7K
Renaissance Technologies15.7K$434.3K−$57.8KAdded$120.1K
Susquehanna Portfolio Strategies, LLC14.1K$391.3K−$87KCut−$81.6K
EntryPoint Capital, LLC12.4K$343.7KNew
Brevan Howard Capital Management LP11.1K$308.4KNew
Jump Financial, LLC10.9K$302.9KNew
BANK OF AMERICA CORP /DE/10.9K$302.5K−$32KAdded$128.7K
XTX Topco Ltd10.8K$299.3KNew
Engineers Gate Manager LP9.42K$261.5K−$59KCut−$91.4K
AMERICAN CENTURY COMPANIES INC9.15K$254KNew
CANADA PENSION PLAN INVESTMENT BOARD8.5K$235.9K−$21.9KAdded$116.8K
OMERS ADMINISTRATION Corp8.1K$224.8K−$50.7KCut−$305.7K
Virtus Investment Advisers, LLC7.55K$209.6K−$46.1KCut−$41K
CITIGROUP INC6.48K$179.9K−$13.8KAdded$105K
Vanguard Global Advisers, LLC4.62K$128.1KHeld
Tower Research Capital LLC (TRC)544$15.1K−$3.41KCut−$5.55K
UBS Group AG364$10.1K−$2.28KCut−$322.5K
NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO260$7.21K−$1.63KCut−$1.63K
Aquatic Capital Management LLC220$6.11KNew
RHUMBLINE ADVISERS190$5.27K−$1.19KCut−$1.19K
BNP PARIBAS FINANCIAL MARKETS149$4.13K−$12Added$4.07K
Accent Capital Management, LLC142$3.94KNew
OSAIC HOLDINGS, INC.100$2.77K−$626Cut−$626
US BANCORP \DE\59$1.64K−$370Cut−$370
FIFTH THIRD BANCORP57$1.58KNew
EverSource Wealth Advisors, LLC55$1.53K−$345Cut−$345
GSA CAPITAL PARTNERS LLP45K$1.25K−$80Added$818
Allworth Financial LP29$805−$182Cut−$284
ROYAL BANK OF CANADA16$0New

Who left

Positions as of Q1 2026. 13F filings arrive up to 45 days after quarter-end and omit shorts. Values are quarter-end marks, as filed. Estimated mark is the price effect on shares still held — not realized P&L or investment advice.