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 57 rows by value; the complete set is available through the API.

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	$115.34M 4,505,391 shares	6.44%	+2.30M(+103.90%)Added	SEC filing ↗ Nov 13, 2025	▾
02	FARALLON CAPITAL MANAGEMENT LLC CIK 909661 · Amended · View history	$31.43M 1,227,590 shares	0.18%	+1.23MNew	SEC filing ↗ Feb 17, 2026	▾
03	RA CAPITAL MANAGEMENT, L.P. CIK 1346824 · View history	$26.12M 1,020,410 shares	0.32%	+1.02MNew	SEC filing ↗ Nov 14, 2025	▾
04	COMMODORE CAPITAL LP CIK 1831942 · View history	$25.60M 1,000,000 shares	1.25%	+1.00MNew	SEC filing ↗ Nov 14, 2025	▾
05	JANUS HENDERSON GROUP PLC CIK 1274173 · View history	$19.23M 752,626 shares	0.01%	+752.63KNew	SEC filing ↗ Nov 14, 2025	▾
06	VANGUARD GROUP INC CIK 102909 · View history	$12.85M 502,112 shares	0.00%	+248.29K(+97.80%)Added	SEC filing ↗ Nov 7, 2025	▾
07	Frazier Life Sciences Management, L.P. CIK 1892134 · View history	$11.68M 456,249 shares	0.35%	+456.25KNew	SEC filing ↗ Nov 14, 2025	▾
08	Blackstone Inc. CIK 1393818 · Amended · View history	$11.46M 447,789 shares	0.05%	+447.79KNew	SEC filing ↗ Nov 14, 2025	▾
09	FRANKLIN RESOURCES INC CIK 38777 · View history	$11.41M 238,169 shares	0.00%	+238.17KNew	SEC filing ↗ Nov 13, 2025	▾
10	Point72 Asset Management, L.P. CIK 1603466 · View history	$7.58M 296,017 shares	0.02%	+296.02KNew	SEC filing ↗ Nov 14, 2025	▾
11	Parkman Healthcare Partners LLC CIK 1777015 · View history	$6.43M 250,981 shares	0.71%	+250.98KNew	SEC filing ↗ Nov 14, 2025	▾
12	B Group, Inc. CIK 2043476 · View history	$4.50M 175,706 shares	4.30%	-13.64K(-7.20%)Reduced	SEC filing ↗ Nov 14, 2025	▾
13	BlackRock, Inc. CIK 2012383 · View history	$4.36M 170,199 shares	0.00%	+80.53K(+89.80%)Added	SEC filing ↗ Nov 12, 2025	▾
14	RENAISSANCE TECHNOLOGIES LLC CIK 1037389 · View history	$3.93M 153,611 shares	0.01%	+46.09K(+42.90%)Added	SEC filing ↗ Nov 13, 2025	▾
15	Patient Square Capital LP CIK 1819257 · View history	$3.46M 135,182 shares	0.93%	+135.18KNew	SEC filing ↗ Nov 10, 2025	▾
16	SUSQUEHANNA INTERNATIONAL GROUP, LLP CIK 1446194 · View history	$3.35M 131,026 shares	0.00%	+131.03KNew	SEC filing ↗ Nov 14, 2025	▾
17	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$3.33M 130,095 shares	0.00%	+79.08K(+155.00%)Added	SEC filing ↗ Nov 12, 2025	▾
18	Schonfeld Strategic Advisors LLC CIK 1665241 · View history	$3.12M 121,888 shares	0.02%	+121.89KNew	SEC filing ↗ Nov 14, 2025	▾
19	MARSHALL WACE, LLP CIK 1318757 · View history	$2.18M 85,215 shares	0.00%	+85.22KNew	SEC filing ↗ Nov 13, 2025	▾
20	STEMPOINT CAPITAL LP CIK 1952142 · View history	$1.69M 66,130 shares	0.34%	+66.13KNew	SEC filing ↗ Nov 14, 2025	▾

Showing 20 / 57 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

Cancelled or null records excluded

Disclosed shares

12,482,608

Not deduplicated across managers

Disclosed value

$324.91M

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. · Q3 2025

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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.