13F Insight
DOSSIER · 13F Holders · Q1 2026CyclicalNet sold
ASMB

ASSEMBLY BIOSCIENCES INC

76 institutions still hold ASSEMBLY BIOSCIENCES INC as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 045396207·76 13F holders·last filed Mar 31, 2026
Market cap
—
▲ 5.0%
vs prior quarter
13F value held
$349M
60.0% inst. owned
of float
Holders
76
+59 QoQ
filers reporting
Activity
+58 / −30
+793 added · −720 reduced
this quarter
Concentration
35.81%
GILEAD SCIENCES, INC. #1
top holder share
AI Holders Summary · Q1 2026

76 institutions reported ASMB in Q1 2026. GILEAD SCIENCES, INC. leads at 35.8% of the visible book. +59 net new institutions vs prior quarter — accumulation reading.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
GILEAD SCIENCES, INC.
CIK 0000882095
$125M4.5M5.90%Q1 202602
FARALLON CAPITAL MANAGEMENT LLC
CIK 0000909661
$34M1.2M0.19%Q1 202603
RA CAPITAL MANAGEMENT, L.P.
CIK 0001346824
$28M1.0M0.30%Q1 202604
Commodore Capital LP
CIK 0001831942
$28M1.0M1.61%Q1 202605
JANUS HENDERSON GROUP PLC
CIK 0001274173
$23M849K0.01%Q1 202606
Paradigm Biocapital Advisors LP
CIK 0001855655
$18M665K0.38%Q1 202607
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$14M490K0.00%Q1 202608
Parkman Healthcare Partners LLC
CIK 0001777015
$11M411K1.18%Q1 202609
STEMPOINT CAPITAL LP
CIK 0001952142
$10M371K0.99%Q1 202610
Point72 Asset Management, L.P.
CIK 0001603466
$10M344K0.01%Q1 202611
Blackstone Inc.
CIK 0001393818
$8M297K0.03%Q1 202612
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
$6M234K0.00%Q1 202613
BlackRock, Inc.
CIK 0002012383
$6M203K0.00%Q1 202614
B Group, Inc.
CIK 0002043476
$5M176K3.61%Q1 202615
ADAGE CAPITAL PARTNERS GP, L.L.C.
CIK 0001165408
$4M161K0.01%Q1 202616
MARSHALL WACE, LLP
CIK 0001318757
$4M129K0.00%Q4 202517
Patient Square Capital LP
CIK 0001819257
$4M136K0.67%Q1 202618
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$4M133K0.00%Q1 202619
Schonfeld Strategic Advisors LLC
CIK 0001665241
$3M121K0.02%Q1 202620
Caption Management, LLC
CIK 0001706766
$2M82K0.01%Q1 2026
Page 1 of 4
56 more holders available. Log in →