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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 $3.19B in total; no superinvestor holds it.

13F holders, Q2 2025

Institutional positions in Celldex Therapeutics, Inc. as of Jun 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
182
+12 vs. Q1 2025
Shares held
72.3M
−1.31M (−1.8%) vs. Q1 2025
Total value
$1.48B
+$142.7M (+10.7%) vs. Q1 2025
New holders
39
75 more added
Sold out
27
42 more reduced

1 institution that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 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 holdersQ2 2025: 182 institutions
Q1 2021: 115 institutionsQ2 2021: 132 institutionsQ3 2021: 161 institutionsQ4 2021: 181 institutionsQ1 2022: 169 institutionsQ2 2022: 158 institutionsQ3 2022: 161 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 2025: $1.48B
Q1 2021: $709.5MQ2 2021: $1.23BQ3 2021: $2.33BQ4 2021: $1.81BQ1 2022: $1.69BQ2 2022: $1.30BQ3 2022: $1.39BQ4 2022: $2.17BQ1 2023: $2.03BQ2 2023: $1.70BQ3 2023: $1.39BQ4 2023: $2.45BQ1 2024: $2.94BQ2 2024: $2.58BQ3 2024: $2.44BQ4 2024: $1.86BQ1 2025: $1.34BQ2 2025: $1.48BQ3 2025: $1.83BQ4 2025: $2.00BQ1 2026: $2.32BQ2 2026: $3.19B
Institutions holding CLDX and their total value by quarter
QuarterHoldersValue
Q2 2026253$3.19B
Q1 2026229$2.32B
Q4 2025187$2.00B
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$2.94B
Q4 2023164$2.45B
Q3 2023143$1.39B
Q2 2023150$1.70B
Q1 2023161$2.03B
Q4 2022168$2.17B
Q3 2022161$1.39B
Q2 2022158$1.30B
Q1 2022169$1.69B
Q4 2021181$1.81B
Q3 2021161$2.33B
Q2 2021132$1.23B
Q1 2021115$709.5M

Institutions, Q2 2025

Shares, value and share of portfolio for each institution holding Celldex Therapeutics, Inc.; share changes are against Q1 2025.

Institutions holding CLDX in Q2 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Kynam Capital Management, LP6,100,729$124.1M13.37%−399,271−6.1%Reduced
BlackRock, Inc.5,550,016$112.9M0.00%+25,884+0.5%Added
FMR LLC5,439,118$110.7M0.01%+59,027+1.1%Added
Wellington Management Group LLP5,232,326$106.5M0.02%−3,121,825−37.4%Reduced
Vanguard Group Inc3,957,122$80.5M0.00%+58,687+1.5%Added
Price T Rowe Associates Inc3,817,820$77.7M0.01%+407,321+11.9%Added
Commodore Capital LP3,450,000$70.2M4.96%+250,000+7.8%Added
Bellevue Group AG3,307,569$67.3M1.48%+235,954+7.7%Added
Point72 Asset Management, L.P.2,801,721$57.0M0.13%+180,546+6.9%Added
State Street Corp2,405,495$49.0M0.00%−400,864−14.3%Reduced
Deep Track Capital, LP2,000,000$40.7M1.31%00.0%Unchanged
Vestal Point Capital, LP1,750,000$35.6M1.87%+1,551,354+781.0%Added
Geode Capital Management, LLC1,672,980$34.0M0.00%+83,174+5.2%Added
Woodline Partners LP1,500,455$30.5M0.16%+312,026+26.3%Added
Eventide Asset Management, LLC1,356,186$27.6M0.48%−2,398,607−63.9%Reduced
Pictet Asset Management Holding SA1,300,329$26.5M0.03%+342,535+35.8%Added
Polar Capital Holdings Plc1,228,435$25.0M0.13%−175,000−12.5%Reduced
Novo Holdings A/S1,200,000$24.4M1.72%00.0%Unchanged
UBS Group AG841,246$17.1M0.00%−626,994−42.7%Reduced
Eversept Partners, LP838,736$17.1M1.72%+142,237+20.4%Added
Fisher Asset Management, LLC822,208$16.7M0.01%−49,420−5.7%Reduced
Rock Springs Capital Management LP812,653$16.5M1.03%00.0%Unchanged
American Century Companies Inc779,985$15.9M0.01%+154,664+24.7%Added
Goldman Sachs Group Inc727,504$14.8M0.00%+31,497+4.5%Added
Baker Bros. Advisors LP665,370$13.5M0.13%+417,726+168.7%Added
Morgan Stanley661,518$13.5M0.00%−241,364−26.7%Reduced
D. E. Shaw & Co., Inc.645,657$13.1M0.01%+239,496+59.0%Added
Logos Global Management LP600,000$12.2M1.63%+600,000New
Northern Trust Corp575,875$11.7M0.00%−1,486−0.3%Reduced
Charles Schwab Investment Management Inc553,081$11.3M0.00%+17,237+3.2%Added
5AM Venture Management, LLC497,270$10.1M3.89%00.0%Unchanged
Millennium Management LLC477,227$9.71M0.01%+77,295+19.3%Added
Sphera Funds Management Ltd.419,540$8.54M2.23%−88,289−17.4%Reduced
Segall Bryant & Hamill, LLC387,888$7.89M0.11%+387,888New
Citadel Advisors LLC378,738$7.71M0.01%−224,663−37.2%Reduced
TSP Capital Management Group, LLC–$7.56M2.37%––
Redmile Group, LLC343,026$6.98M0.74%−247,149−41.9%Reduced
Readystate Asset Management LP335,000$6.82M0.28%+335,000New
Polygon Management Ltd.316,150$6.43M1.16%+55,150+21.1%Added
Bank of America Corp276,184$5.62M0.00%+31,248+12.8%Added
Nuveen, LLC265,555$5.40M0.00%−163,571−38.1%Reduced
Barclays PLC262,725$5.35M0.00%+146,159+125.4%Added
JPMorgan Chase & Co233,821$4.76M0.00%−7,533−3.1%Reduced
UBS Asset Management Americas Inc213,846$4.35M0.00%+82,550+62.9%Added
BNP Paribas Arbitrage, SA211,260$4.30M0.00%+106,120+100.9%Added
CI Private Wealth, LLC201,717$4.10M0.01%+201,717New
Silverarc Capital Management, LLC198,441$4.04M0.83%−7,521−3.7%Reduced
Bank of New York Mellon Corp194,101$3.95M0.00%+20,215+11.6%Added
AXA S.A.185,100$3.77M0.01%+297+0.2%Added
Renaissance Technologies LLC181,388$3.69M0.00%+34,800+23.7%Added
Algert Global LLC180,965$3.68M0.08%+47,368+35.5%Added
Mirador Capital Partners LP158,717$3.23M0.52%+30,843+24.1%Added
Dimensional Fund Advisors LP143,886$2.93M0.00%+143,886New
Cinctive Capital Management LP138,040$2.81M0.16%+94,645+218.1%Added
Deutsche Bank AG128,581$2.62M0.00%−9,708−7.0%Reduced
TD Asset Management Inc127,878$2.60M0.00%+49,000+62.1%Added
Manufacturers Life Insurance Company, The124,546$2.53M0.00%+29,761+31.4%Added
Schonfeld Strategic Advisors LLC118,775$2.42M0.02%+118,775New
Swiss National Bank114,100$2.32M0.00%−1,600−1.4%Reduced
Trexquant Investment LP112,464$2.29M0.03%+34,254+43.8%Added
Susquehanna International Group, LLP111,399$2.27M0.00%+17,729+18.9%Added
Rhumbline Advisers106,599$2.17M0.00%+8,333+8.5%Added
HighVista Strategies LLC106,553$2.17M0.80%+106,553New
Citigroup Inc99,200$2.02M0.00%−31,488−24.1%Reduced
PDT Partners, LLC97,822$1.99M0.11%+76,923+368.1%Added
SummitTX Capital, L.P.96,070$1.96M0.09%+10,000+11.6%Added
State of Wisconsin Investment Board84,726$1.72M0.00%+49,871+143.1%Added
Two Sigma Investments, LP80,733$1.64M0.00%+52,077+181.7%Added
Exome Asset Management LLC73,000$1.49M1.22%+73,000New
Rafferty Asset Management, LLC71,558$1.46M0.00%−36,780−33.9%Reduced
Legal & General Group Plc71,190$1.45M0.00%+7,049+11.0%Added
Alliancebernstein L.P.65,540$1.33M0.00%00.0%Unchanged
Invesco Ltd.62,886$1.28M0.00%+10,443+19.9%Added
Y-Intercept (Hong Kong) Ltd58,398$1.19M0.03%+58,398New
ADAR1 Capital Management, LLC57,466$1.17M0.19%+42,866+293.6%Added
Jefferies Financial Group Inc.57,000$1.16M0.02%+2,000+3.6%Added
California State Teachers Retirement System55,508$1.13M0.00%−662−1.2%Reduced
Royal Bank of Canada50,615$1.03M0.00%+50,051+8,874.3%Added
HRT Financial LP48,415$985.0K0.00%+26,997+126.0%Added
Schroder Investment Management Group48,099$978.8K0.00%00.0%Unchanged
Wells Fargo & Company43,276$880.7K0.00%+9,898+29.7%Added
Envestnet Asset Management Inc42,287$860.5K0.00%+42,287New
Intech Investment Management LLC41,900$852.7K0.01%+7,679+22.4%Added
Sovran Advisors, LLC39,476$842.0K0.09%+39,476New
Two Sigma Advisers, LP40,600$826.2K0.00%+40,600New
Perbak Capital Partners LLP40,410$822.3K0.19%+40,410New
Mirae Asset Global ETFs Holdings Ltd.39,388$801.3K0.00%−4,063−9.4%Reduced
MetLife Investment Management39,004$793.7K0.00%00.0%Unchanged
Teachers Retirement System of the State of Kentucky36,699$747.0K0.01%−2,602−6.6%Reduced
Alps Advisors Inc35,812$728.8K0.00%−14,126−28.3%Reduced
Verition Fund Management LLC33,871$689.3K0.00%+15,475+84.1%Added
Prelude Capital Management, LLC31,066$632.2K0.06%+31,066New
Creative Planning29,902$608.5K0.00%+6,233+26.3%Added
Jump Financial, LLC29,503$600.4K0.01%+10,255+53.3%Added
Jane Street Group, LLC28,860$587.3K0.00%−185,566−86.5%Reduced
Simplex Trading, LLC28,271$575.0K0.02%+26,233+1,287.2%Added
Victory Capital Management Inc27,650$562.7K0.00%+27,650New
Guggenheim Capital LLC25,995$529.0K0.00%+1,212+4.9%Added
Janus Henderson Group PLC25,642$522.3K0.00%00.0%Unchanged
DekaBank Deutsche Girozentrale25,000$514.0K0.00%00.0%Unchanged