Stock Ownership/CLDX

Celldex Therapeutics, Inc. (CLDX): Ownership & Insider Activity

Hedge funds and institutional managers reporting a position in CLDX · Health Care. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.

Reported Holders
16
13F filers
Aggregate Value
$198.8M
Across holders
Last Price
$40.57
2026-08-24
Sector
Health Care
GICS
Quarterly fund activity8 increased8 reduced4 exited
Full exits: CITADEL ADVISORS LLC, ArrowMark Colorado Holdings LLC, TUDOR INVESTMENT CORP ET AL, Walleye Capital LLC
Institutional Holders of CLDX
↗
16 holders
Manager⇅Type⇅Shares⇅Market Value▼% of Total⇅% of Portfolio⇅Action⇅QoQ Change⇅Quarter⇅
BAKER BROS. ADVISORS LP
CIK 0001263508
Hedge Fund1.18M$44.0M22.1%0.2%Added+$19.2MQ2 2026
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
Hedge Fund1.17M$43.6M21.9%0.0%Reduced$-3.1MQ2 2026
Fisher Asset Management, LLC
CIK 0000850529
Institutional Manager986K$36.7M18.5%0.0%Reduced$-1.0MQ2 2026
Woodline Partners LP
CIK 0001784547
Hedge Fund701K$26.1M13.1%0.1%Added+$7.5MQ2 2026
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
Hedge Fund661K$24.6M12.4%0.0%Added+$19.5MQ2 2026
Tetragon Partners GP Ltd
CIK 0001515070
Hedge Fund290K$10.8M5.4%1.7%Reduced$-814KQ2 2026
Point72 Asset Management, L.P.
CIK 0001603466
Hedge Fund117K$4.4M2.2%0.0%Reduced$-115.8MQ2 2026
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
Hedge Fund87K$3.2M1.6%0.0%Added+$1.2MQ2 2026
Man Group plc
CIK 0001637460
Hedge Fund64K$2.4M1.2%0.0%Added—Q2 2026
BALYASNY ASSET MANAGEMENT LLC
CIK 0001218710
Hedge Fund26K$979K0.5%0.0%Reduced$-2.2MQ2 2026
BAKER BROS. ADVISORS LPAdded
Hedge Fund
$44.0M· 22.1% of total· 0.2% port· 1.18M sh· +$19.2M QoQ· Q2 2026
MILLENNIUM MANAGEMENT LLCReduced
Hedge Fund
$43.6M· 21.9% of total· 0.0% port· 1.17M sh· $-3.1M QoQ· Q2 2026
Fisher Asset Management, LLCReduced
Institutional Manager
$36.7M· 18.5% of total· 0.0% port· 986K sh· $-1.0M QoQ· Q2 2026
Woodline Partners LPAdded
Hedge Fund
$26.1M· 13.1% of total· 0.1% port· 701K sh· +$7.5M QoQ· Q2 2026
TWO SIGMA INVESTMENTS, LPAdded
Hedge Fund
$24.6M· 12.4% of total· 0.0% port· 661K sh· +$19.5M QoQ· Q2 2026
Tetragon Partners GP LtdReduced
Hedge Fund
$10.8M· 5.4% of total· 1.7% port· 290K sh· $-814K QoQ· Q2 2026
Point72 Asset Management, L.P.Reduced
Hedge Fund
$4.4M· 2.2% of total· 0.0% port· 117K sh· $-115.8M QoQ· Q2 2026
AQR CAPITAL MANAGEMENT LLCAdded
Hedge Fund
$3.2M· 1.6% of total· 0.0% port· 87K sh· +$1.2M QoQ· Q2 2026
Man Group plcAdded
Hedge Fund
$2.4M· 1.2% of total· 0.0% port· 64K sh· — QoQ· Q2 2026
BALYASNY ASSET MANAGEMENT LLCReduced
Hedge Fund
$979K· 0.5% of total· 0.0% port· 26K sh· $-2.2M QoQ· Q2 2026
SHAW D E & CO INCReduced
Hedge Fund
$663K· 0.3% of total· 0.0% port· 18K sh· $-233K QoQ· Q2 2026
CAPSTONE INVESTMENT ADVISORS, LLCAdded
Hedge Fund
$440K· 0.2% of total· 0.0% port· 12K sh· — QoQ· Q2 2026
FRED ALGER MANAGEMENT, LLCReduced
Hedge Fund
$352K· 0.2% of total· 0.0% port· 9K sh· $-335K QoQ· Q2 2026
Brevan Howard Capital Management LPReduced
Hedge Fund
$303K· 0.2% of total· 0.0% port· 8K sh· $-42K QoQ· Q2 2026
Magnetar Financial LLCAdded
Hedge Fund
$296K· 0.1% of total· 0.0% port· 8K sh· — QoQ· Q2 2026
Rockefeller Capital Management L.P.Added
Hedge Fund
$48K· 0.0% of total· 0.0% port· 1K sh· +$47K QoQ· Q2 2026
1–10 of 16
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