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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, Q1 2025

Institutional positions in Celldex Therapeutics, Inc. as of Mar 31, 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
171
−2 vs. Q4 2024
Shares held
73.6M
+230.0K (+0.3%) vs. Q4 2024
Total value
$1.34B
−$518.0M (−27.9%) vs. Q4 2024
New holders
29
63 more added
Sold out
31
53 more reduced

1 institution that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2024: 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 holdersQ1 2025: 171 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 heldQ1 2025: $1.34B
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, Q1 2025

Shares, value and share of portfolio for each institution holding Celldex Therapeutics, Inc.; share changes are against Q4 2024.

Institutions holding CLDX in Q1 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Mirae Asset Global ETFs Holdings Ltd.43,451$797.6K0.00%+680+1.6%Added
Atom Investors LP49,179$892.6K0.11%+9,976+25.4%Added
Alps Advisors Inc49,938$906.4K0.01%−3,712−6.9%Reduced
Invesco Ltd.52,443$951.8K0.00%+10,342+24.6%Added
Schroder Investment Management Group48,099$958.6K0.00%00.0%Unchanged
Jefferies Financial Group Inc.55,000$998.3K0.02%−2,335,398−97.7%Reduced
California State Teachers Retirement System56,170$1.02M0.00%00.0%Unchanged
Gsa Capital Partners LLP62,326$1.13M0.10%+62,326New
Legal & General Group Plc64,141$1.16M0.00%−193−0.3%Reduced
Alliancebernstein L.P.65,540$1.19M0.00%00.0%Unchanged
Trexquant Investment LP78,210$1.42M0.02%+78,210New
TD Asset Management Inc78,878$1.43M0.00%−65,000−45.2%Reduced
SummitTX Capital, L.P.86,070$1.56M0.07%+86,070New
Walleye Capital LLC93,327$1.69M0.02%+93,327New
Susquehanna International Group, LLP93,670$1.70M0.00%+27,636+41.9%Added
Manufacturers Life Insurance Company, The94,785$1.72M0.00%−9,591−9.2%Reduced
Rhumbline Advisers98,266$1.78M0.00%+6,327+6.9%Added
BNP Paribas Arbitrage, SA105,140$1.91M0.00%+42,509+67.9%Added
Rafferty Asset Management, LLC108,338$1.97M0.01%−44,116−28.9%Reduced
Swiss National Bank115,700$2.10M0.00%−1,600−1.4%Reduced
Barclays PLC116,566$2.12M0.00%−26,348−18.4%Reduced
Mirador Capital Partners LP127,874$2.32M0.41%+8,382+7.0%Added
Citigroup Inc130,688$2.37M0.00%+11,329+9.5%Added
UBS Asset Management Americas Inc131,296$2.38M0.00%+14,979+12.9%Added
Algert Global LLC133,597$2.42M0.06%+29,260+28.0%Added
Deutsche Bank AG138,289$2.51M0.00%+16,788+13.8%Added
Renaissance Technologies LLC146,588$2.66M0.00%+10,000+7.3%Added
Bank of New York Mellon Corp173,886$3.16M0.00%−7,724−4.3%Reduced
AXA S.A.184,803$3.35M0.01%−237−0.1%Reduced
Vestal Point Capital, LP198,646$3.61M0.26%−106,354−34.9%Reduced
Silverarc Capital Management, LLC205,962$3.74M0.78%−58,598−22.1%Reduced
Jane Street Group, LLC214,426$3.89M0.01%+128,844+150.6%Added
Natixis232,188$4.16M0.02%+216,388+1,369.5%Added
JPMorgan Chase & Co241,354$4.38M0.00%+155,809+182.1%Added
Bank of America Corp244,936$4.45M0.00%+202,088+471.6%Added
Baker Bros. Advisors LP247,644$4.49M0.05%00.0%Unchanged
Polygon Management Ltd.261,000$4.74M1.52%+69,000+35.9%Added
TSP Capital Management Group, LLC335,977$6.10M2.01%+112,634+50.4%Added
Millennium Management LLC399,932$7.26M0.01%+306,330+327.3%Added
D. E. Shaw & Co., Inc.406,161$7.37M0.01%−112,179−21.6%Reduced
Nuveen, LLC429,126$7.79M0.00%+429,126New
5AM Venture Management, LLC497,270$9.03M3.41%00.0%Unchanged
Sphera Funds Management Ltd.507,829$9.22M2.27%+33,726+7.1%Added
Charles Schwab Investment Management Inc535,844$9.73M0.00%−8,486−1.6%Reduced
Northern Trust Corp577,361$10.5M0.00%−20,244−3.4%Reduced
Redmile Group, LLC590,175$10.7M1.01%−25,600−4.2%Reduced
Citadel Advisors LLC603,401$11.0M0.01%−104,685−14.8%Reduced
American Century Companies Inc625,321$11.3M0.01%+16,864+2.8%Added
Goldman Sachs Group Inc696,007$12.6M0.00%−506,446−42.1%Reduced
Eversept Partners, LP696,499$12.6M1.43%−23,337−3.2%Reduced
Rock Springs Capital Management LP812,653$14.7M0.84%−409,529−33.5%Reduced
Fisher Asset Management, LLC871,628$15.8M0.01%+419,131+92.6%Added
Morgan Stanley902,882$16.4M0.00%−441,217−32.8%Reduced
Pictet Asset Management Holding SA957,794$17.4M0.02%−132,379−12.1%Reduced
Woodline Partners LP1,188,429$21.6M0.14%−825,586−41.0%Reduced
Novo Holdings A/S1,200,000$21.8M1.66%+200,000+20.0%Added
Polar Capital Holdings Plc1,403,435$25.5M0.16%−162,396−10.4%Reduced
UBS Group AG1,468,240$26.6M0.01%+1,078,443+276.7%Added
Geode Capital Management, LLC1,589,806$28.9M0.00%+54,890+3.6%Added
Deep Track Capital, LP2,000,000$36.3M1.18%+459,868+29.9%Added
Point72 Asset Management, L.P.2,621,175$47.6M0.13%+105,203+4.2%Added
State Street Corp2,806,359$50.9M0.00%−428,602−13.2%Reduced
Bellevue Group AG3,071,615$55.7M1.25%00.0%Unchanged
Commodore Capital LP3,200,000$58.1M4.28%+3,200,000New
Price T Rowe Associates Inc3,410,499$61.9M0.01%−146,637−4.1%Reduced
Eventide Asset Management, LLC3,754,793$68.2M1.36%+1,5330.0%Added
Vanguard Group Inc3,898,435$70.8M0.00%+16,440+0.4%Added
FMR LLC5,380,091$97.6M0.01%+522,423+10.8%Added
BlackRock, Inc.5,524,132$100.3M0.00%+43,462+0.8%Added
Kynam Capital Management, LP6,500,000$118.0M10.09%+1,435,793+28.4%Added
Wellington Management Group LLP8,354,151$151.6M0.03%−621,682−6.9%Reduced
T. Rowe Price Investment Management, Inc.0$00.00%−1,697,498−100.0%Sold out
Crestline Management, LP0$00.00%−295,354−100.0%Sold out
Cubist Systematic Strategies, LLC0$00.00%−154,512−100.0%Sold out
Readystate Asset Management LP0$00.00%−142,038−100.0%Sold out
Sovran Advisors, LLC0$00.00%−113,457−100.0%Sold out
Squarepoint Ops LLC0$00.00%−71,176−100.0%Sold out
Hudson Bay Capital Management LP0$00.00%−45,000−100.0%Sold out
Canada Pension Plan Investment Board0$00.00%−37,000−100.0%Sold out
Tema ETFs LLC0$00.00%−29,480−100.0%Sold out
AQR Capital Management LLC0$00.00%−21,724−100.0%Sold out
NEOS Investment Management LLC0$00.00%−20,261−100.0%Sold out
First Trust Advisors LP0$00.00%−18,372−100.0%Sold out
ExodusPoint Capital Management, LP0$00.00%−17,244−100.0%Sold out
Los Angeles Capital Management LLC0$00.00%−15,421−100.0%Sold out
Brevan Howard Capital Management LP0$00.00%−11,414−100.0%Sold out
XTX Topco Ltd0$00.00%−11,256−100.0%Sold out
Affinity Asset Advisors, LLC0$00.00%−9,992−100.0%Sold out
Ameriprise Financial Inc0$00.00%−9,944−100.0%Sold out
Phoenix Holdings Ltd.0$00.00%−9,615−100.0%Sold out
HSBC Holdings PLC0$00.00%−9,292−100.0%Sold out
Victory Capital Management Inc0$00.00%−8,003−100.0%Sold out
Aristides Capital LLC0$00.00%−8,000−100.0%Sold out
Caption Management, LLC0$00.00%−7,462−100.0%Sold out
Headlands Technologies LLC0$00.00%−3,212−100.0%Sold out
Virtus ETF Advisers LLC0$00.00%−2,688−100.0%Sold out
R Squared Ltd0$00.00%−880−100.0%Sold out
Bayforest Capital Ltd0$00.00%−865−100.0%Sold out
Smartleaf Asset Management LLC0$00.00%−303−100.0%Sold out
Skopos Labs, Inc.0$00.00%−98−100.0%Sold out