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Disclosery

ASMB ASSEMBLY BIOSCIENCES INC

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COMMON STOCK (common), issuer CIK 1426800

90 managers (93 13F filers) reported a position in ASMB shares at 2026-06-30, 18,749,846 shares in all. 32 filers opened a position and 15 filers sold out during the quarter.

Managers
90
13F filers
93
New
32
Added
35
Reduced
17
Sold out
15
Shares held by filers
18,749,846

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q2 2026

Filers in the available 13F reports with a share position at 2026-06-30, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
GILEAD SCIENCES, INC.in group GILEAD SCIENCES, INC.4,977,089$137M8.3%+471,69813F-HRTimelineGroup
FARALLON CAPITAL MANAGEMENT, L.L.C.1,604,590$44.1M0.26%+377,00013F-HRTimeline
Paradigm Biocapital Advisors LPin group Paradigm Biocapital Advisors …1,553,748$42.7M0.8%+888,49713F-HRTimelineGroup
Commodore Capital LPin group Commodore Capital LP1,415,000$38.9M2.32%+415,00013F-HRTimelineGroup
RA CAPITAL MANAGEMENT, L.P.in group RA CAPITAL MANAGEMENT, L.P.1,020,410$28M0.24%013F-HRTimelineGroup
Jupiter Topco LLCin group Janus Henderson849,309$23.4M0.01%13F-HRTimelineGroup
BlackRock, Inc.in group BlackRock, Inc.766,819$21.1M<0.01%+564,07613F-HRTimelineGroup
VANGUARD GROUP INCgroup of 4 filers holding728,680$20M+144,289Timeline
Parkman Healthcare Partners LLC721,181$19.8M2.04%+309,95413F-HRTimeline
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.460,593$12.7M0.02%+116,48813F-HRTimelineGroup
Seven Fleet Capital Management LP433,147$11.9M1.96%+377,00013F-HRTimeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC298,807$8.21M0.01%+65,15713F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC280,424$7.71M<0.01%+147,45313F-HRTimelineGroup
Schonfeld Strategic Advisors LLC242,153$6.65M0.04%+121,65313F-HRTimeline
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC230,000$6.32M<0.01%new13F-HRTimelineGroup
DV EQUITIES, LLC226,415$6.22M0.9%13F-HRTimeline
Aberdeen Group plcin group Aberdeen Group plc207,047$5.69M0.01%new13F-HRTimelineGroup
Affinity Asset Advisors, LLC190,000$5.22M0.26%new13F-HRTimeline
B Group, Inc.175,706$4.83M2.74%013F-HRTimeline
STATE STREET CORPin group STATE STREET CORP171,931$4.72M<0.01%+115,24213F-HRTimelineGroup
STEMPOINT CAPITAL LP170,378$4.68M0.81%-15,05713F-HRTimeline
Squadron Capital Management LLC160,000$4.4M1.51%new13F-HRTimeline
Woodline Partners LP150,780$4.14M0.01%new13F-HRTimeline
Driehaus Capital Management LLC150,000$4.12M0.02%new13F-HRTimeline
Ally Bridge Group (NY) LLC140,000$3.85M4.96%new13F-HRTimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC137,833$3.79M<0.01%+101,62813F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP123,029$3.38M<0.01%+82,01513F-HRTimelineGroup
FRANKLIN RESOURCES INCin group Franklin Resources113,200$3.11M<0.01%new13F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC95,907$2.64M<0.01%+70,47013F-HRTimelineGroup
HighVista Strategies LLC73,405$2.02M0.46%-1,33013F-HRTimeline
Qube Research & Technologies Ltd51,488$1.41M<0.01%-17,76813F-HRTimeline
MONIMUS CAPITAL MANAGEMENT, LP47,580$1.31M0.33%-81013F-HRTimeline
Trexquant Investment LP45,661$1.25M0.01%+22,92013F-HRTimeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO46,385$1.25M<0.01%-7,57713F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY45,219$1.24M<0.01%+12,16413F-HRTimelineGroup
GSA CAPITAL PARTNERS LLP42,931$1.18M0.07%-2,11813F-HRTimeline
XTX Topco Ltdin group XTX Topco Ltd42,918$1.18M0.02%+32,13313F-HRTimelineGroup
UBS Group AGin group UBS Group AG41,806$1.15M<0.01%+41,44213F-HRTimelineGroup
RENAISSANCE TECHNOLOGIES LLC39,441$1.08M<0.01%+23,79013F-HRTimeline
Squarepoint Ops LLCin group Squarepoint Ops LLC34,214$940K<0.01%+10,41013F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co29,128$800K<0.01%new13F-HRTimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS24,203$665K<0.01%+24,05413F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp24,015$660K<0.01%new13F-HRTimelineGroup
Connor, Clark & Lunn Investment Managem…23,765$653K<0.01%+2,00413F-HRTimeline
Caption Management, LLC22,829$627K0.02%-59,01213F-HRTimeline
ADAR1 Capital Management, LLCin group ADAR1 Capital Management, LLC20,447$562K0.03%+50013F-HRTimelineGroup
Palumbo Wealth Management LLC19,865$546K0.11%+22213F-HRTimeline
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP17,858$491K<0.01%-2,69213F-HRTimelineGroup
Engineers Gate Manager LP17,766$488K0.01%+8,34313F-HRTimeline
MARSHALL WACE, LLPin group MARSHALL WACE, LLP17,735$487K<0.01%-145,66513F-HRTimelineGroup
Nuveen, LLCin group TIAA16,875$464K<0.01%new13F-HRTimelineGroup
Eversept Partners, LP16,510$454K0.02%-24,37913F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPgroup of 2 filers holding15,129$416K-31,920Timeline
Virtus Investment Advisers, LLCin group Virtus Investment Advisers, L…14,251$392K0.09%+6,69813F-HRTimelineGroup
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC13,239$364K<0.01%+4,08513F-HRTimelineGroup
Invesco Ltd.in group Invesco Ltd.11,864$326K<0.01%new13F-HRTimelineGroup
RHUMBLINE ADVISERS11,590$318K<0.01%+11,40013F-HRTimeline
Integrated Quantitative Investments LLC10,078$277K0.05%new13F-HRTimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\9,615$264K<0.01%new13F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/9,567$263K<0.01%-1,33513F-HRTimelineGroup
CANADA PENSION PLAN INVESTMENT BOARD8,500$234K<0.01%013F-HRTimeline
EntryPoint Capital, LLC8,285$228K0.06%-4,09913F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN8,253$227K<0.01%new13F-HRTimelineGroup
PRICE T ROWE ASSOCIATES INC /MD/8,203$226K<0.01%new13F-HRTimeline
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…7,765$213K<0.01%-3,34713F-HRTimelineGroup
Persistent Asset Partners Ltd6,942$191K0.06%new13F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC6,133$169K<0.01%-20,91713F-HRTimelineGroup
MetLife Investment Management, LLCin group MetLife Investment Management…5,885$162K<0.01%new13F-HRTimelineGroup
CITIGROUP INCin group CITIGROUP INC4,554$125K<0.01%-1,92913F-HRTimelineGroup
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…4,519$124K<0.01%new13F-HRTimelineGroup
NEW YORK STATE COMMON RETIREMENT FUND4,200$115K<0.01%new13F-HRTimeline
Police & Firemen's Retirement System of…2,907$79.9K<0.01%new13F-HRTimeline
Legal & General Group Plcin group Legal & General Group Plc958$26.3K<0.01%new13F-HRTimelineGroup
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…895$24.6K<0.01%new13F-HRTimelineGroup
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…788$21.7K<0.01%new13F-HRTimelineGroup
HSBC HOLDINGS PLCin group HSBC HOLDINGS PLC16,935$17.1K<0.01%new13F-HRTimelineGroup
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…530$14.6K<0.01%-1413F-HRTimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA440$12K<0.01%+42413F-HRTimelineGroup
NORTHWESTERN MUTUAL WEALTH MANAGEMENT COin group NORTHWESTERN MUTUAL INVESTMEN…260$7.14K<0.01%013F-HRTimelineGroup
Accent Capital Management, LLC212$5.83K<0.01%+7013F-HRTimeline
Sterling Capital Management LLC199$5.47K<0.01%new13F-HRTimeline
Truvestments Capital LLC193$5.3K<0.01%new13F-HRTimeline
FMR LLCin group FMR LLC178$4.89K<0.01%new13F-HRTimelineGroup
CALIFORNIA STATE TEACHERS RETIREMENT SY…136$3.74K<0.01%new13F-HR/ATimeline
Integrated Wealth Concepts LLC108$2.97K<0.01%new13F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.100$2.75K<0.01%013F-HRTimelineGroup
Caitong International Asset Management …75$2.06K<0.01%new13F-HRTimeline
Quarry LP75$2.06K<0.01%new13F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…55$1.51K<0.01%013F-HRTimelineGroup
Allworth Financial LP10$275<0.01%-1913F-HRTimeline