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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: 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 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 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, 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
Kynam Capital Management, LP6,100,729$157.8M11.75%00.0%Unchanged
Wellington Management Group LLP5,800,003$150.0M0.03%+567,677+10.8%Added
BlackRock, Inc.5,505,988$142.4M0.00%−44,028−0.8%Reduced
FMR LLC4,962,088$128.4M0.01%−477,030−8.8%Reduced
Vanguard Group Inc3,954,590$102.3M0.00%−2,532−0.1%Reduced
Point72 Asset Management, L.P.3,893,942$100.7M0.22%+1,092,221+39.0%Added
Bellevue Group AG3,557,669$92.0M1.91%+250,100+7.6%Added
Commodore Capital LP3,028,335$78.3M3.82%−421,665−12.2%Reduced
State Street Corp2,842,134$73.5M0.00%+436,639+18.2%Added
Price T Rowe Associates Inc2,382,518$61.6M0.01%−1,435,302−37.6%Reduced
Deep Track Capital, LP2,000,000$51.7M1.44%00.0%Unchanged
Eventide Asset Management, LLC1,859,095$48.1M0.79%+502,909+37.1%Added
Geode Capital Management, LLC1,647,136$42.6M0.00%−25,844−1.5%Reduced
Polar Capital Holdings Plc1,300,436$33.6M0.16%+72,001+5.9%Added
Pictet Asset Management Holding SA1,211,990$31.4M0.03%−88,339−6.8%Reduced
Vestal Point Capital, LP1,205,000$31.2M1.41%−545,000−31.1%Reduced
Novo Holdings A/S1,200,000$31.0M2.00%00.0%Unchanged
Eversept Partners, LP1,153,920$29.9M2.29%+315,184+37.6%Added
Goldman Sachs Group Inc1,029,460$26.6M0.00%+301,956+41.5%Added
Millennium Management LLC975,195$25.2M0.02%+497,968+104.3%Added
Fisher Asset Management, LLC927,157$24.0M0.01%+104,949+12.8%Added
American Century Companies Inc815,560$21.1M0.01%+35,575+4.6%Added
Rock Springs Capital Management LP721,538$18.7M1.09%−91,115−11.2%Reduced
Baker Bros. Advisors LP665,370$17.2M0.12%00.0%Unchanged
Northern Trust Corp595,385$15.4M0.00%+19,510+3.4%Added
Braidwell LP591,689$15.3M0.45%+591,689New
Charles Schwab Investment Management Inc553,873$14.3M0.00%+792+0.1%Added
Segall Bryant & Hamill, LLC528,597$13.7M0.18%+140,709+36.3%Added
5AM Venture Management, LLC497,270$12.9M4.71%00.0%Unchanged
UBS Group AG416,447$10.8M0.00%−424,799−50.5%Reduced
TSP Capital Management Group, LLC375,927$9.73M2.60%––
Silverarc Capital Management, LLC348,922$9.03M1.31%+150,481+75.8%Added
Bank of America Corp338,811$8.77M0.00%+62,627+22.7%Added
Redmile Group, LLC327,008$8.46M0.82%−16,018−4.7%Reduced
Citadel Advisors LLC319,332$8.26M0.01%−59,406−15.7%Reduced
Morgan Stanley311,919$8.07M0.00%−349,599−52.8%Reduced
Polygon Management Ltd.303,600$7.85M1.14%−12,550−4.0%Reduced
Affinity Asset Advisors, LLC300,000$7.76M0.72%+300,000New
D. E. Shaw & Co., Inc.257,332$6.66M0.01%−388,325−60.1%Reduced
Dimensional Fund Advisors LP257,083$6.65M0.00%+113,197+78.7%Added
Nuveen, LLC249,195$6.45M0.00%−16,360−6.2%Reduced
Barclays PLC244,825$6.33M0.00%−17,900−6.8%Reduced
CI Private Wealth, LLC239,606$6.21M0.01%+37,889+18.8%Added
Sphera Funds Management Ltd.207,764$5.37M1.27%−211,776−50.5%Reduced
Bank of New York Mellon Corp205,694$5.32M0.00%+11,593+6.0%Added
Woodline Partners LP199,291$5.16M0.02%−1,301,164−86.7%Reduced
Renaissance Technologies LLC194,588$5.03M0.01%+13,200+7.3%Added
JPMorgan Chase & Co184,775$4.78M0.00%−49,046−21.0%Reduced
Mirador Capital Partners LP165,921$4.29M0.61%+7,204+4.5%Added
Propel Bio Management, LLC155,000$4.01M4.01%+155,000New
HighVista Strategies LLC135,258$3.50M0.86%+28,705+26.9%Added
Deutsche Bank AG134,557$3.48M0.00%+5,976+4.6%Added
BNP Paribas Arbitrage, SA133,883$3.46M0.00%−77,377−36.6%Reduced
AXA Investment Managers S.A.121,326$3.14M0.01%+121,326New
Swiss National Bank115,800$3.00M0.00%+1,700+1.5%Added
ADAR1 Capital Management, LLC109,442$2.83M0.28%+51,976+90.4%Added
UBS Asset Management Americas Inc105,478$2.73M0.00%−108,368−50.7%Reduced
Algert Global LLC103,747$2.68M0.04%−77,218−42.7%Reduced
Rhumbline Advisers103,157$2.67M0.00%−3,442−3.2%Reduced
Voloridge Investment Management, LLC100,308$2.59M0.01%+79,335+378.3%Added
PDT Partners, LLC97,822$2.53M0.16%00.0%Unchanged
Rafferty Asset Management, LLC97,460$2.52M0.01%+25,902+36.2%Added
SummitTX Capital, L.P.96,070$2.49M0.10%00.0%Unchanged
TD Asset Management Inc92,450$2.39M0.00%−35,428−27.7%Reduced
Manufacturers Life Insurance Company, The87,074$2.25M0.00%−37,472−30.1%Reduced
Simplify Asset Management Inc.85,000$2.20M0.04%+85,000New
Invesco Ltd.78,886$2.04M0.00%+16,000+25.4%Added
Two Sigma Investments, LP73,401$1.90M0.00%−7,332−9.1%Reduced
Legal & General Group Plc69,579$1.80M0.00%−1,611−2.3%Reduced
Wells Fargo & Company67,756$1.75M0.00%+24,480+56.6%Added
Alliancebernstein L.P.65,540$1.70M0.00%00.0%Unchanged
HRT Financial LP64,169$1.66M0.01%+15,754+32.5%Added
Envestnet Asset Management Inc63,594$1.65M0.00%+21,307+50.4%Added
California State Teachers Retirement System55,511$1.44M0.00%+30.0%Added
Verition Fund Management LLC55,140$1.43M0.01%+21,269+62.8%Added
Jefferies Financial Group Inc.50,000$1.29M0.01%−7,000−12.3%Reduced
Y-Intercept (Hong Kong) Ltd48,906$1.27M0.03%−9,492−16.3%Reduced
Schroder Investment Management Group48,099$1.26M0.00%00.0%Unchanged
Readystate Asset Management LP46,520$1.20M0.06%−288,480−86.1%Reduced
Royal Bank of Canada45,401$1.17M0.00%−5,214−10.3%Reduced
State of Wisconsin Investment Board44,759$1.16M0.00%−39,967−47.2%Reduced
MetLife Investment Management39,004$1.01M0.00%00.0%Unchanged
Hennion & Walsh Asset Management, Inc.35,783$925.7K0.03%+14,729+70.0%Added
First Trust Advisors LP35,531$919.2K0.00%+35,531New
Mirae Asset Global ETFs Holdings Ltd.35,413$917.7K0.00%−3,975−10.1%Reduced
Creative Planning33,270$860.7K0.00%+3,368+11.3%Added
Teachers Retirement System of the State of Kentucky33,098$856.0K0.01%−3,601−9.8%Reduced
Alps Advisors Inc31,916$825.7K0.00%−3,896−10.9%Reduced
Tudor Investment Corp Et Al31,618$818.0K0.01%+31,618New
Intech Investment Management LLC30,891$799.1K0.01%−11,009−26.3%Reduced
Cubist Systematic Strategies, LLC30,446$787.6K0.01%+30,446New
Victory Capital Management Inc27,390$708.6K0.00%−260−0.9%Reduced
Susquehanna International Group, LLP27,367$708.0K0.00%−84,032−75.4%Reduced
Janus Henderson Group PLC25,642$663.1K0.00%00.0%Unchanged
ArrowMark Colorado Holdings LLC25,000$646.8K0.01%00.0%Unchanged
DekaBank Deutsche Girozentrale25,000$646.0K0.00%00.0%Unchanged
DAFNA Capital Management LLC24,518$634.3K0.16%+24,518New
Zurcher Kantonalbank (Zurich Cantonalbank)22,800$589.8K0.00%+3,740+19.6%Added
Guggenheim Capital LLC22,721$587.8K0.00%−3,274−12.6%Reduced
Citigroup Inc22,394$579.3K0.00%−76,806−77.4%Reduced