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Celldex Therapeutics, Inc.

CLDX
Exchange
Nasdaq
Industry
In Vitro & In Vivo Diagnostic Substances
SEC CIK
0000744218

No open-market purchases or sales by Celldex Therapeutics, Inc. insiders were filed in the last 90 days; 253 institutions reported holding it in 13F filings for Q2 2026, worth $3.16B in total; no superinvestor holds it.

13F holders, Q3 2025

Institutional positions in Celldex Therapeutics, Inc. as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
184
+3 vs. Q2 2025
Shares held
70.7M
−1.58M (−2.2%) vs. Q2 2025
Total value
$1.83B
+$350.6M (+23.7%) vs. Q2 2025
New holders
29
60 more added
Sold out
26
57 more reduced

1 institution that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting CLDX on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ3 2025: 184 institutions
Q1 2021: 115 institutionsQ2 2021: 132 institutionsQ3 2021: 161 institutionsQ4 2021: 181 institutionsQ1 2022: 169 institutionsQ2 2022: 158 institutionsQ3 2022: 160 institutionsQ4 2022: 168 institutionsQ1 2023: 161 institutionsQ2 2023: 150 institutionsQ3 2023: 144 institutionsQ4 2023: 164 institutionsQ1 2024: 197 institutionsQ2 2024: 183 institutionsQ3 2024: 176 institutionsQ4 2024: 174 institutionsQ1 2025: 171 institutionsQ2 2025: 182 institutionsQ3 2025: 184 institutionsQ4 2025: 187 institutionsQ1 2026: 229 institutionsQ2 2026: 253 institutions
Value heldQ3 2025: $1.83B
Q1 2021: $709.5MQ2 2021: $1.19BQ3 2021: $2.33BQ4 2021: $1.79BQ1 2022: $1.69BQ2 2022: $1.30BQ3 2022: $1.39BQ4 2022: $2.17BQ1 2023: $1.78BQ2 2023: $1.70BQ3 2023: $1.39BQ4 2023: $2.42BQ1 2024: $2.91BQ2 2024: $2.58BQ3 2024: $2.44BQ4 2024: $1.86BQ1 2025: $1.34BQ2 2025: $1.48BQ3 2025: $1.83BQ4 2025: $1.99BQ1 2026: $2.31BQ2 2026: $3.16B
Institutions holding CLDX and their total value by quarter
QuarterHoldersValue
Q2 2026253$3.16B
Q1 2026229$2.31B
Q4 2025187$1.99B
Q3 2025184$1.83B
Q2 2025182$1.48B
Q1 2025171$1.34B
Q4 2024174$1.86B
Q3 2024176$2.44B
Q2 2024183$2.58B
Q1 2024197$2.91B
Q4 2023164$2.42B
Q3 2023144$1.39B
Q2 2023150$1.70B
Q1 2023161$1.78B
Q4 2022168$2.17B
Q3 2022160$1.39B
Q2 2022158$1.30B
Q1 2022169$1.69B
Q4 2021181$1.79B
Q3 2021161$2.33B
Q2 2021132$1.19B
Q1 2021115$709.5M

Institutions, Q3 2025

Shares, value and share of portfolio for each institution holding Celldex Therapeutics, Inc.; share changes are against Q2 2025.

Institutions holding CLDX in Q3 2025
InstitutionSharesValue% of portfolioChange in sharesAction
FNY Investment Advisers, LLC14$00.00%−2,393−99.4%Reduced
Capital Advisors, Ltd. LLC1$00.00%00.0%Unchanged
Avion Wealth24$00.00%00.0%Unchanged
Covestor Ltd10$00.00%+5+100.0%Added
MTM Investment Management, LLC1$260.00%00.0%Unchanged
IFP Advisors, Inc5$1290.00%+5Added
Strategic Investment Solutions, Inc.5$1290.00%00.0%Unchanged
Scarborough Advisors, LLC6$1550.00%00.0%Unchanged
Concord Wealth Partners8$2070.00%00.0%Unchanged
True Wealth Design, LLC11$2850.00%00.0%Unchanged
Rockefeller Capital Management L.P.19$4920.00%+19New
Private Wealth Management Group, LLC28$7250.00%00.0%Unchanged
Comerica Bank31$7910.00%00.0%Unchanged
TSFG, LLC50$1.00K0.00%00.0%Unchanged
J.Safra Asset Management Corp40$1.03K0.00%−195−83.0%Reduced
SBI Securities Co., Ltd.49$1.27K0.00%+3+6.5%Added
Parkside Financial Bank & Trust51$1.32K0.00%+26+104.0%Added
Smartleaf Asset Management LLC52$1.36K0.00%+45+642.9%Added
Allworth Financial LP70$1.81K0.00%00.0%Unchanged
Larson Financial Group LLC73$1.89K0.00%+73New
Parallel Advisors, LLC74$1.91K0.00%00.0%Unchanged
Halbert Hargrove Global Advisors, LLC78$2.02K0.00%+78New
Rothschild Investment LLC90$2.33K0.00%−20−18.2%Reduced
Huntington National Bank109$2.82K0.00%00.0%Unchanged
Strategic Advocates LLC130$3.36K0.00%+130New
GAMMA Investing LLC141$3.65K0.00%+71+101.4%Added
Quadrant Capital Group LLC160$4.14K0.00%+160New
Farther Finance Advisors, LLC191$4.94K0.00%+10+5.5%Added
Versant Capital Management, Inc214$5.54K0.00%00.0%Unchanged
EverSource Wealth Advisors, LLC262$6.78K0.00%+91+53.2%Added
Optiver Holding B.V.264$6.83K0.00%+264New
National Bank of Canada367$9.49K0.00%+1+0.3%Added
Signaturefd, LLC415$10.7K0.00%+8+2.0%Added
CWM, LLC417$11.0K0.00%+54+14.9%Added
CIBC Private Wealth Group, LLC500$12.9K0.00%00.0%Unchanged
The PNC Financial Services Group, Inc.556$14.4K0.00%+292+110.6%Added
BNP PARIBAS ASSET MANAGEMENT Holding S.A.669$17.0K0.00%+54+8.8%Added
US Bancorp722$18.7K0.00%−15−2.0%Reduced
Advisor Group Holdings, Inc.748$18.9K0.00%+83+12.5%Added
Aster Capital Management (DIFC) Ltd1,014$26.2K0.01%+1,014New
Simplex Trading, LLC1,136$29.0K0.00%−27,135−96.0%Reduced
Federation des caisses Desjardins du Quebec1,340$34.7K0.00%−204−13.2%Reduced
Nisa Investment Advisors, LLC1,395$36.1K0.00%+1+0.1%Added
Bryn Mawr Trust Co1,633$42.2K0.00%+1,633New
Amalgamated Bank2,189$57.0K0.00%00.0%Unchanged
KBC Group NV2,411$62.0K0.00%00.0%Unchanged
Quantbot Technologies LP2,442$63.2K0.00%+2,442New
STRS Ohio2,900$75.0K0.00%+2,900New
Quest Partners LLC3,702$95.8K0.01%−9,254−71.4%Reduced
Tower Research Capital LLC (TRC)4,441$114.9K0.00%−2,806−38.7%Reduced
Sterling Capital Management LLC4,535$117.3K0.00%+2,767+156.5%Added
Advisory Services Network, LLC5,390$139.4K0.00%+5,390New
Ameritas Investment Partners, Inc.5,472$141.6K0.00%−1,072−16.4%Reduced
Virtus Investment Advisers, Inc.5,592$144.7K0.04%+971+21.0%Added
Great West Life Assurance Co6,338$166.0K0.00%00.0%Unchanged
Russell Investments Group, Ltd.7,362$190.5K0.00%+5,047+218.0%Added
Public Employees Retirement Association of Colorado7,787$201.0K0.00%00.0%Unchanged
XTX Topco Ltd7,894$204.2K0.01%−10,397−56.8%Reduced
HSBC Holdings PLC8,145$211.1K0.00%−9,434−53.7%Reduced
Argent Trust Co8,481$219.4K0.01%+8,481New
Overbrook Management Corp8,797$227.6K0.04%+8,797New
Prudential Financial Inc8,809$227.9K0.00%+8,809New
Transcend Wealth Collective, LLC9,237$239.0K0.02%+9,237New
Cetera Investment Advisers9,905$256.2K0.00%+9,905New
ProShare Advisors LLC11,200$289.7K0.00%−2,230−16.6%Reduced
Balyasny Asset Management LLC11,632$300.9K0.00%+11,632New
Voya Investment Management LLC11,987$310.1K0.00%−5,814−32.7%Reduced
KLP Kapitalforvaltning AS12,100$313.0K0.00%00.0%Unchanged
DnB Asset Management AS13,251$342.8K0.00%+951+7.7%Added
Jump Financial, LLC14,143$365.9K0.00%−15,360−52.1%Reduced
Brevan Howard Capital Management LP14,362$371.5K0.01%+14,362New
State Board of Administration of Florida Retirement System14,537$376.1K0.00%00.0%Unchanged
Teacher Retirement System of Texas14,698$380.2K0.00%−1,408−8.7%Reduced
Ensign Peak Advisors, Inc15,878$410.8K0.00%−8,200−34.1%Reduced
Apella Capital, LLC17,024$452.0K0.01%+24+0.1%Added
Arizona State Retirement System17,649$456.6K0.00%+230+1.3%Added
Police & Firemen's Retirement System of New Jersey18,143$469.4K0.00%+2,871+18.8%Added
Gsa Capital Partners LLP18,308$474.0K0.04%+18,308New
Universal- Beteiligungs- und Servicegesellschaft mbH19,297$499.2K0.00%+2,802+17.0%Added
SG Americas Securities, LLC19,468$504.0K0.00%+19,468New
Panagora Asset Management Inc20,334$526.0K0.00%00.0%Unchanged
Profund Advisors LLC21,305$551.2K0.02%+5,880+38.1%Added
Handelsbanken Fonder AB21,600$559.0K0.00%00.0%Unchanged
New York State Common Retirement Fund22,237$575.3K0.00%00.0%Unchanged
Citigroup Inc22,394$579.3K0.00%−76,806−77.4%Reduced
Guggenheim Capital LLC22,721$587.8K0.00%−3,274−12.6%Reduced
Zurcher Kantonalbank (Zurich Cantonalbank)22,800$589.8K0.00%+3,740+19.6%Added
DAFNA Capital Management LLC24,518$634.3K0.16%+24,518New
DekaBank Deutsche Girozentrale25,000$646.0K0.00%00.0%Unchanged
ArrowMark Colorado Holdings LLC25,000$646.8K0.01%00.0%Unchanged
Janus Henderson Group PLC25,642$663.1K0.00%00.0%Unchanged
Susquehanna International Group, LLP27,367$708.0K0.00%−84,032−75.4%Reduced
Victory Capital Management Inc27,390$708.6K0.00%−260−0.9%Reduced
Cubist Systematic Strategies, LLC30,446$787.6K0.01%+30,446New
Intech Investment Management LLC30,891$799.1K0.01%−11,009−26.3%Reduced
Tudor Investment Corp Et Al31,618$818.0K0.01%+31,618New
Alps Advisors Inc31,916$825.7K0.00%−3,896−10.9%Reduced
Teachers Retirement System of the State of Kentucky33,098$856.0K0.01%−3,601−9.8%Reduced
Creative Planning33,270$860.7K0.00%+3,368+11.3%Added
Mirae Asset Global ETFs Holdings Ltd.35,413$917.7K0.00%−3,975−10.1%Reduced