13F Insight
DOSSIER · 13F Holders · Q1 2026High-convictionMulti-bagger
CLDX

Celldex Therapeutics Inc

233 institutions still hold Celldex Therapeutics Inc as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 15117b202·233 13F holders·last filed Mar 31, 2026
Market cap
—
▼ 9.2%
vs prior quarter
13F value held
$1.7B
74.0% inst. owned
of float
Holders
233
-16 QoQ
filers reporting
Activity
+45 / −65
+745 added · −775 reduced
this quarter
Concentration
16.45%
WELLINGTON MANAGEMENT GROUP LLP #1
top holder share
AI Holders Summary · Q1 2026

233 institutions reported CLDX in Q1 2026. WELLINGTON MANAGEMENT GROUP LLP leads at 16.5% of the visible book. -16 net institutions QoQ — distribution reading.

Top holders

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

#HolderValueShares% port.Quarter
01
WELLINGTON MANAGEMENT GROUP LLP
CIK 0000902219
$272M8.6M0.05%Q1 202602
Kynam Capital Management, LP
CIK 0001907884
$185M5.8M11.43%Q1 202603
BlackRock, Inc.
CIK 0002012383
$170M5.4M0.00%Q1 202604
FMR LLC
CIK 0000315066
$119M3.7M0.01%Q1 202605
Point72 Asset Management, L.P.
CIK 0001603466
$102M3.2M0.13%Q1 202606
Bellevue Group AG
CIK 0001674546
$98M3.6M1.86%Q4 202507
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$94M3.0M0.00%Q1 202608
STATE STREET CORP
CIK 0000093751
$89M2.8M0.00%Q1 202609
Commodore Capital LP
CIK 0001831942
$86M2.7M4.95%Q1 202610
Eversept Partners, LP
CIK 0001697013
$57M1.8M2.99%Q1 202611
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$54M1.7M0.00%Q1 202612
BRAIDWELL LP
CIK 0001920938
$43M1.4M1.43%Q1 202613
Deep Track Capital, LP
CIK 0001856083
$41M1.3M0.67%Q1 202614
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
$40M1.3M0.02%Q1 202615
Vestal Point Capital, LP
CIK 0001974915
$39M1.2M1.09%Q1 202616
DIMENSIONAL FUND ADVISORS LP
CIK 0000354204· Quasi-passive
$34M1.1M0.01%Q1 202617
EVENTIDE ASSET MANAGEMENT, LLC
CIK 0001442891
$33M1.0M0.54%Q1 202618
Novo Holdings A/S
CIK 0001388325
$33M1.2M2.53%Q4 202519
Fisher Asset Management, LLC
CIK 0000850529
$32M1.0M0.01%Q1 202620
GOLDMAN SACHS GROUP INC
CIK 0000886982
$31M988K0.00%Q1 2026
Page 1 of 12
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