DOSSIER · 13F Holders · Q1 2026
AGEN

AGENUS INC

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

CUSIP 00847G804·93 13F holders·last filed Mar 31, 2026
Market cap
13F value held
$27M
visible holders
Holders
93
filers reporting
Concentration
18.11%
VANGUARD CAPITAL MANAGEMENT LLC #1
top holder share
AI Holders Summary · Q1 2026

93 institutions reported AGEN in Q1 2026. VANGUARD CAPITAL MANAGEMENT LLC leads at 18.1% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$5M1.4M0.00%Q1 2026
02
Vanguard Portfolio Management
CIK 0002100121· Index
$4M1.2M0.00%Q1 2026
03
Siren, L.L.C.
CIK 0002005245
$4M1.1M0.10%Q1 2026
04
BlackRock, Inc.
CIK 0002012383
$2M546K0.00%Q1 2026
05
CITADEL ADVISORS LLC
CIK 0001423053
$2M522K0.00%Q4 2025
06
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$1M348K0.00%Q1 2026
07
MORGAN STANLEY
CIK 0000895421
$988K296K0.00%Q1 2026
08
RENAISSANCE TECHNOLOGIES LLC
CIK 0001037389
$954K286K0.00%Q1 2026
09
Man Group plc
CIK 0001637460
$932K279K0.00%Q1 2026
10
RAYMOND JAMES FINANCIAL INC
CIK 0000720005
$800K240K0.00%Q1 2026
11
UBS Group AG
CIK 0001610520
$783K234K0.00%Q1 2026
12
ACADIAN ASSET MANAGEMENT LLC
CIK 0000916542
$713K215K0.00%Q1 2026
13
VANGUARD FIDUCIARY TRUST CO
CIK 0000933478· Index
$670K200K0.00%Q1 2026
14
Connor, Clark & Lunn Investment Management Ltd.
CIK 0001596800
$663K199K0.00%Q1 2026
15
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
$571K171K0.00%Q1 2026
16
PANAGORA ASSET MANAGEMENT INC
CIK 0000883677
$545K163K0.00%Q1 2026
17
Jump Financial, LLC
CIK 0001831577
$525K157K0.01%Q1 2026
18
STATE STREET CORP
CIK 0000093751
$522K156K0.00%Q1 2026
19
MARSHALL WACE, LLP
CIK 0001318757
$461K147K0.00%Q4 2025
20
SUSQUEHANNA INTERNATIONAL GROUP, LLP
CIK 0001446194· Market maker
$450K135K0.00%Q1 2026
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Insiders at AGENUS INC
Armen Garo HWright TimothyHarrison Thomas LKlaskin Christine MO'Day Steven JCorvese BrianHirsch Susan BBuell Jennifer