13F Insight
DOSSIER · 13F Holders · Q1 2026Most-boughtAI cap-ex
COGT

Cogent Biosciences Inc Com

313 institutions still hold Cogent Biosciences Inc Com as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 19240q201·313 13F holders·last filed Mar 31, 2026
Market cap
—
▼ 7.5%
vs prior quarter
13F value held
$4.6B
46.0% inst. owned
of float
Holders
313
+11 QoQ
filers reporting
Activity
+67 / −88
+967 added · −884 reduced
this quarter
Concentration
19.41%
FMR LLC #1
top holder share
AI Holders Summary · Q1 2026

313 institutions reported COGT in Q1 2026. FMR LLC leads at 19.4% of the visible book. +11 net new institutions vs prior quarter — accumulation reading.

Top holders

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

#HolderValueShares% port.Quarter
01
FMR LLC
CIK 0000315066
$890M23.1M0.05%Q1 202602
BlackRock, Inc.
CIK 0002012383
$618M16.0M0.01%Q1 202603
DEERFIELD MANAGEMENT COMPANY, L.P.
CIK 0001009258
$321M9.0M4.10%Q4 202504
Vanguard Portfolio Management
CIK 0002100121· Index
$282M7.3M0.01%Q1 202605
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$265M6.9M0.01%Q1 202606
JANUS HENDERSON GROUP PLC
CIK 0001274173
$230M6.0M0.11%Q1 202607
STATE STREET CORP
CIK 0000093751
$218M5.7M0.01%Q1 202608
Fairmount Funds Management LLC
CIK 0001802528
$212M5.5M15.30%Q1 202609
RTW INVESTMENTS, LP
CIK 0001493215
$210M5.5M2.09%Q1 202610
TCG Crossover Management, LLC
CIK 0001839948
$190M4.9M5.45%Q1 202611
GOLDMAN SACHS GROUP INC
CIK 0000886982
$171M4.4M0.02%Q1 202612
Kynam Capital Management, LP
CIK 0001907884
$155M4.0M9.59%Q1 202613
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$142M3.7M0.01%Q1 202614
WELLINGTON MANAGEMENT GROUP LLP
CIK 0000902219
$138M3.6M0.03%Q1 202615
Commodore Capital LP
CIK 0001831942
$111M2.9M6.43%Q1 202616
Invesco Ltd.
CIK 0000914208
$94M2.4M0.01%Q1 202617
Octagon Capital Advisors LP
CIK 0001839435
$90M2.4M10.01%Q1 202618
Holocene Advisors, LP
CIK 0001700574
$87M2.3M0.21%Q1 202619
Sofinnova Investments, Inc.
CIK 0001631134
$81M2.1M3.09%Q1 202620
D. E. Shaw & Co., Inc.
CIK 0001009207
$80M2.2M0.04%Q4 2025
Page 1 of 16
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