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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, Q2 2026

Institutional positions in Celldex Therapeutics, Inc. as of Jun 30, 2026. 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
253
+26 vs. Q1 2026
Shares held
85.0M
+12.5M (+17.2%) vs. Q1 2026
Total value
$3.16B
+$850.9M (+36.8%) vs. Q1 2026
New holders
47
106 more added
Sold out
21
57 more reduced

2 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2026: 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 holdersQ2 2026: 253 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: 143 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 heldQ2 2026: $3.16B
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 2023143$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, Q2 2026

Shares, value and share of portfolio for each institution holding Celldex Therapeutics, Inc.; share changes are against Q1 2026.

Institutions holding CLDX in Q2 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Great West Life Assurance Co11,726$435.0K0.00%+5,388+85.0%Added
Capstone Investment Advisors, LLC11,822$439.9K0.00%+11,822New
AlphaCentric Advisors LLC12,784$475.7K0.40%+170+1.3%Added
STRS Ohio12,800$476.3K0.00%+12,800New
PSP Research LLC13,000$483.7K0.26%00.0%Unchanged
State Board of Administration of Florida Retirement System14,537$540.9K0.00%00.0%Unchanged
Voya Investment Management LLC14,957$556.5K0.00%+3,238+27.6%Added
Barclays PLC15,087$561.4K0.00%+1,112+8.0%Added
KLP Kapitalforvaltning AS15,200$565.6K0.00%+2,400+18.8%Added
DV Equities, LLC16,500$614.0K0.09%+16,500New
SBI Okasan Asset Management Co.Ltd.16,400$614.0K0.02%00.0%Unchanged
Prudential Financial Inc16,698$621.3K0.00%+6,295+60.5%Added
Quadrature Capital Ltd16,846$626.8K0.01%−7,594−31.1%Reduced
Vanguard Investments Australia, Ltd.17,766$661.1K0.00%+3,421+23.8%Added
D. E. Shaw & Co., Inc.17,826$663.3K0.00%−35,034−66.3%Reduced
Arizona State Retirement System18,565$690.8K0.00%+2,139+13.0%Added
Susquehanna International Group, LLP19,080$710.0K0.00%−16,868−46.9%Reduced
Ghisallo Capital Management LLC20,000$744.2K0.01%+20,000New
Verdad Advisers, LP20,704$770.4K0.74%+20,704New
DekaBank Deutsche Girozentrale25,000$782.0K0.00%00.0%Unchanged
Intech Investment Management LLC21,411$796.7K0.01%+56+0.3%Added
State of New Jersey Common Pension Fund D21,755$809.5K0.00%+1,316+6.4%Added
Susquehanna Portfolio Strategies, LLC22,180$825.3K0.01%00.0%Unchanged
Police & Firemen's Retirement System of New Jersey23,053$857.8K0.01%+4,925+27.2%Added
Balyasny Asset Management LLC26,313$979.1K0.00%−58,713−69.1%Reduced
Handelsbanken Fonder AB27,200$1.01M0.00%+1,300+5.0%Added
SEI Investments Co27,780$1.03M0.00%−10,372−27.2%Reduced
Capital Fund Management S.A.28,417$1.06M0.01%+28,417New
New York State Common Retirement Fund28,437$1.06M0.00%+6,200+27.9%Added
Apella Capital, LLC26,658$1.06M0.02%+9,634+56.6%Added
Victory Capital Management Inc28,834$1.07M0.00%+1,412+5.1%Added
Profund Advisors LLC28,930$1.08M0.03%−596−2.0%Reduced
Vanguard Global Advisers, LLC29,453$1.10M0.00%+3,416+13.1%Added
Jupiter Topco LLC30,042$1.12M0.00%+30,042New
Zurcher Kantonalbank (Zurich Cantonalbank)30,677$1.14M0.00%00.0%Unchanged
BNP Paribas Arbitrage, SA31,191$1.16M0.00%−144,597−82.3%Reduced
Diversified Trust Co31,330$1.17M0.02%+24,309+346.2%Added
Y-Intercept (Hong Kong) Ltd32,257$1.20M0.02%−12,935−28.6%Reduced
Envestnet Asset Management Inc33,272$1.24M0.00%+219+0.7%Added
Engineers Gate Manager LP33,842$1.26M0.02%+33,842New
State of Wisconsin Investment Board35,569$1.32M0.00%+1,460+4.3%Added
Creative Planning35,670$1.33M0.00%+2,234+6.7%Added
HRT Financial LP37,453$1.39M0.00%−9,292−19.9%Reduced
Mirae Asset Global ETFs Holdings Ltd.42,518$1.58M0.00%+7,179+20.3%Added
Aquatic Capital Management LLC43,743$1.63M0.06%+38,613+752.7%Added
MetLife Investment Management45,527$1.69M0.01%+8,864+24.2%Added
Hennion & Walsh Asset Management, Inc.47,113$1.75M0.05%−412−0.9%Reduced
Vanguard Asset Management, Ltd49,731$1.85M0.00%+8,640+21.0%Added
Burkehill Global Management, LP50,000$1.86M0.07%+50,000New
Seven Grand Managers, LLC50,000$1.86M0.07%+50,000New
Simplify Asset Management Inc.53,134$1.98M0.03%−15,860−23.0%Reduced
Caption Management, LLC55,700$2.07M0.07%+55,700New
Rafferty Asset Management, LLC56,157$2.09M0.00%−8,893−13.7%Reduced
Legal & General Group Plc59,551$2.22M0.00%+4,471+8.1%Added
Teachers Retirement System of the State of Kentucky59,732$2.22M0.02%+26,634+80.5%Added
Man Group plc63,504$2.36M0.00%+63,504New
DAFNA Capital Management LLC68,518$2.55M0.49%00.0%Unchanged
Quantinno Capital Management LP69,048$2.57M0.00%+3,304+5.0%Added
Birchview Capital, LP69,900$2.60M1.22%−195−0.3%Reduced
XTX Topco Ltd75,135$2.80M0.04%+63,061+522.3%Added
Alliancebernstein L.P.88,640$2.81M0.00%+23,100+35.2%Added
California State Teachers Retirement System77,723$2.89M0.00%−1,907−2.4%Reduced
Wells Fargo & Company78,176$2.91M0.00%+43,018+122.4%Added
Alps Advisors Inc79,165$2.95M0.01%+24,975+46.1%Added
TD Asset Management Inc79,326$2.95M0.00%+9,034+12.9%Added
PDT Partners, LLC80,899$3.01M0.16%−16,923−17.3%Reduced
Seven Fleet Capital Management LP86,664$3.22M0.53%+57,364+195.8%Added
AQR Capital Management LLC86,893$3.23M0.00%+79,116+1,017.3%Added
HighVista Strategies LLC86,964$3.24M0.74%−2,433−2.7%Reduced
Manufacturers Life Insurance Company, The89,338$3.32M0.00%+11,566+14.9%Added
Odyssean, LLC95,069$3.54M0.58%+95,069New
Integral Health Asset Management, LLC100,000$3.72M0.15%+100,000New
Russell Investments Group, Ltd.100,452$3.74M0.00%+91,961+1,083.0%Added
Invesco Ltd.103,131$3.84M0.00%+9,447+10.1%Added
Propel Bio Management, LLC103,695$3.86M2.02%−27,669−21.1%Reduced
Rhumbline Advisers104,963$3.91M0.00%+18,980+22.1%Added
Jump Financial, LLC116,293$4.33M0.04%+107,473+1,218.5%Added
BNP PARIBAS ASSET MANAGEMENT Holding S.A.117,045$4.36M0.00%−5,359−4.4%Reduced
Point72 Asset Management, L.P.117,217$4.36M0.01%−3,112,722−96.4%Reduced
Connor, Clark & Lunn Investment Management Ltd.120,428$4.48M0.01%−63,676−34.6%Reduced
Suvretta Capital Management, LLC121,297$4.51M0.09%+121,297New
UBS Asset Management Americas Inc134,958$5.02M0.00%+14,151+11.7%Added
Swiss National Bank135,000$5.02M0.00%+17,100+14.5%Added
First Trust Advisors LP138,682$5.16M0.00%+70,212+102.5%Added
Boothbay Fund Management, LLC140,064$5.21M0.10%+5,119+3.8%Added
Cinctive Capital Management LP145,637$5.42M0.22%+104,404+253.2%Added
JPMorgan Chase & Co157,241$6.00M0.00%−7,537−4.6%Reduced
Deutsche Bank AG176,592$6.57M0.00%+33,555+23.5%Added
CI Private Wealth, LLC176,956$6.58M0.01%+162,320+1,109.0%Added
StemPoint Capital LP178,412$6.64M1.15%−75,855−29.8%Reduced
Mirador Capital Partners LP181,054$6.74M0.83%+3,001+1.7%Added
Trexquant Investment LP184,524$6.87M0.04%+184,524New
Universal- Beteiligungs- und Servicegesellschaft mbH195,788$7.29M0.01%+125,735+179.5%Added
Morgan Stanley196,974$7.33M0.00%−20,575−9.5%Reduced
Rosalind Advisors, Inc.200,000$7.44M2.80%−130,000−39.4%Reduced
Bank of New York Mellon Corp224,176$8.34M0.00%+33,777+17.7%Added
Sphera Funds Management Ltd.240,868$8.96M1.28%−2,707−1.1%Reduced
SummitTX Capital, L.P.254,959$9.49M0.25%+18,322+7.7%Added
GordonMD Global Investments LP279,720$10.4M5.71%+109,413+64.2%Added
Superstring Capital Management LP287,583$10.7M6.76%+107,535+59.7%Added