Company · Ownership research

ASSEMBLY BIOSCIENCES, INC. ASMB

CIK 0001426800 · CUSIP 045396207

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 045396207 (ASMB), not CUSIP 045396108 (ASMB), and does not merge CUSIPs.

This page lists the top 20 of 34 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	GILEAD SCIENCES, INC. CIK 882095 · View history	$40.04M 2,209,471 shares	3.13%	0(0.00%)Unchanged	SEC filing ↗ Aug 14, 2025	▾
02	VANGUARD GROUP INC CIK 102909 · View history	$4.60M 253,825 shares	0.00%	+37.84K(+17.50%)Added	SEC filing ↗ Aug 11, 2025	▾
03	B Group, Inc. CIK 2043476 · View history	$3.43M 189,350 shares	2.96%	-10.65K(-5.30%)Reduced	SEC filing ↗ Aug 14, 2025	▾
04	RENAISSANCE TECHNOLOGIES LLC CIK 1037389 · View history	$1.95M 107,521 shares	0.00%	-5.79K(-5.10%)Reduced	SEC filing ↗ Aug 13, 2025	▾
05	BlackRock, Inc. CIK 2012383 · View history	$1.62M 89,672 shares	0.00%	+10.68K(+13.50%)Added	SEC filing ↗ Aug 12, 2025	▾
06	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$924.60K 51,015 shares	0.00%	+3.31K(+6.90%)Added	SEC filing ↗ Aug 8, 2025	▾
07	MONIMUS CAPITAL MANAGEMENT, LP CIK 1848831 · View history	$762.25K 42,067 shares	0.61%	0(0.00%)Unchanged	SEC filing ↗ Aug 15, 2025	▾
08	CITADEL ADVISORS LLC CIK 1423053 · View history	$647.34K 35,725 shares	0.00%	+23.47K(+191.40%)Added	SEC filing ↗ Aug 14, 2025	▾
09	NORTHERN TRUST CORP CIK 73124 · View history	$508.72K 28,075 shares	0.00%	-248(-0.90%)Reduced	SEC filing ↗ Aug 13, 2025	▾
10	FEDERATED HERMES, INC. CIK 1056288 · View history	$460.14K 25,394 shares	0.00%	0(0.00%)Unchanged	SEC filing ↗ Aug 13, 2025	▾
11	ACADIAN ASSET MANAGEMENT LLC CIK 916542 · View history	$369.00K 20,421 shares	0.00%	-2.61K(-11.30%)Reduced	SEC filing ↗ Aug 7, 2025	▾
12	Palumbo Wealth Management LLC CIK 1846310 · View history	$338.25K 18,667 shares	0.10%	+681(+3.80%)Added	SEC filing ↗ Jul 15, 2025	▾
13	BRIDGEWAY CAPITAL MANAGEMENT, LLC CIK 1107261 · View history	$275.88K 15,225 shares	0.01%	0(0.00%)Unchanged	SEC filing ↗ Aug 14, 2025	▾
14	GSA CAPITAL PARTNERS LLP CIK 1362033 · View history	$269.00K 14,840 shares	0.02%	+14.84KNew	SEC filing ↗ Jul 22, 2025	▾
15	STATE STREET CORP CIK 93751 · View history	$253.84K 14,009 shares	0.00%	0(0.00%)Unchanged	SEC filing ↗ Aug 14, 2025	▾
16	Man Group plc CIK 1637460 · View history	$239.67K 13,227 shares	0.00%	-4.72K(-26.30%)Reduced	SEC filing ↗ Aug 14, 2025	▾
17	Lynx1 Capital Management LP CIK 1910456 · View history	$187.83K 10,366 shares	0.05%	+10.37KNew	SEC filing ↗ Aug 14, 2025	▾
18	UBS Group AG CIK 1610520 · View history	$53.15K 2,933 shares	0.00%	+2.17K(+282.40%)Added	SEC filing ↗ Aug 14, 2025	▾
19	BARCLAYS PLC CIK 312069 · Amended · View history	$50.35K 2,779 shares	0.00%	-652(-19.00%)Reduced	SEC filing ↗ Feb 27, 2026	▾
20	MORGAN STANLEY CIK 895421 · View history	$38.94K 2,149 shares	0.00%	-151(-6.60%)Reduced	SEC filing ↗ Aug 14, 2025	▾

Showing 20 / 34 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

Cancelled or null records excluded

Disclosed shares

3,148,479

Not deduplicated across managers

Disclosed value

$57.05M

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

ASSEMBLY BIOSCIENCES, INC. · Q2 2025

Explore all 34 reporting institutions.

This page includes 20 of 34 reporting institutions. Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.