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Celldex Therapeutics (CLDX) Institutional Ownership

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$36.90 -1.20 (-3.15%)
Closing price 09/11/2026 04:00 PM Eastern
Extended Trading
$36.90 0.00 (-0.01%)
As of 09/11/2026 07:30 PM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more.

Institutional Ownership Changes (13F Filings) for Celldex Therapeutics (NASDAQ:CLDX)

Number of
Institutional Buyers
(last 12 months)
94
Total
Institutional Inflows
(last 12 months)
$587.33M
Number of
Institutional Sellers
(last 12 months)
55
Total
Institutional Outflows
(last 12 months)
$196.52M
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CLDX Institutional Buying and Selling by Quarter

Celldex Therapeutics Major Shareholders & Ownership History

Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
9/9/2026 Engineers Gate Manager LP33,842$1.26M0.0%N/A0.043%
9/8/2026 Arizona State Retirement System18,565$691K0.0%+13.0%0.024%
9/8/2026 Nykredit A S1,793$67K0.0%N/A0.002%
8/27/2026 Corient Private Wealth LP176,956$6.59M0.0%+1,109.0%0.225%
8/24/2026 California State Teachers Retirement System2,892,073$107.61M0.0%+3,531.9%3.683%
8/22/2026 Seven Fleet Capital Management LP86,664$3.23M0.5%+195.8%0.110%
8/22/2026 Odyssean LLC95,069$3.54M0.6%N/A0.121%
8/21/2026 Braidwell LP436,646$16.25M0.6%-67.8%0.556%
8/21/2026 Nykredit A S1,793$67K0.0%N/A0.002%
8/20/2026 Montanova Capital LLC121,297$4.51M0.1%N/A0.154%
8/19/2026 Wellington Management Group LLP9,543,671$355.12M0.1%+11.5%12.153%
8/6/2026 Bank of New York Mellon Corp224,176$8.34M0.0%N/A0.286%
7/10/2026 Handelsbanken Fonder AB27,200$1.01M0.0%+5.0%0.035%
7/9/2026 Hennion & Walsh Asset Management Inc.47,113$1.75M0.0%-0.9%0.060%
7/8/2026 Assenagon Asset Management S.A.788,696$29.35M0.0%+438.3%1.005%
7/8/2026 Apella Capital LLC26,658$1.06M0.0%+56.6%0.034%
7/7/2026 Mirador Capital Partners LP181,054$6.74M0.8%+1.7%0.231%
6/4/2026 Seven Fleet Capital Management LP29,300$929K0.3%N/A0.037%
5/26/2026 Glenmede Trust Co. NA11,267$357K0.0%N/A0.014%
5/22/2026 Segall Bryant & Hamill LLC346,919$11.00M0.1%-32.6%0.442%
5/19/2026 Bank of America Corp DE708,647$22.48M0.0%+70.8%0.903%
5/19/2026 Stempoint Capital LP254,267$8.07M1.5%N/A0.324%
5/18/2026 ADAR1 Capital Management LLC427,816$13.57M0.8%-33.9%0.545%
5/18/2026 Amundi9,351$297K0.0%N/A0.012%
5/18/2026 California State Teachers Retirement System79,630$2.53M0.0%+36.4%0.101%
5/18/2026 Redmile Group LLC261,508$8.30M0.5%-7.7%0.333%
5/18/2026 Rock Springs Capital Management LP650,270$20.63M1.2%-6.1%0.828%
5/18/2026 Eversept Partners LP1,788,016$56.72M3.0%+24.6%2.278%
5/16/2026 The Manufacturers Life Insurance Company77,772$2.47M0.0%+3.5%0.099%
5/16/2026 Quantinno Capital Management LP65,744$2.09M0.0%+178.7%0.084%
5/16/2026 SummitTX Capital L.P.236,637$7.51M0.2%+446.2%0.301%
5/15/2026 Commodore Capital LP2,696,616$85.54M4.9%+5.1%3.436%
5/15/2026 Affinity Asset Advisors LLC500,000$15.86M0.8%+42.9%0.637%
5/14/2026 Sei Investments Co.38,152$1.21M0.0%N/A0.049%
5/14/2026 Walleye Capital LLC8,147$258K0.0%N/A0.010%
5/13/2026 Cetera Investment Advisers7,196$228K0.0%-27.3%0.009%
5/13/2026 First Trust Advisors LP68,470$2.17M0.0%+78.7%0.087%
5/7/2026 Dimensional Fund Advisors LP1,059,534$33.60M0.0%+62.6%1.350%
5/7/2026 AlphaCentric Advisors LLC12,614$400K0.4%N/A0.016%
5/5/2026 Bank of New York Mellon Corp190,399$6.04M0.0%-2.1%0.286%
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5/1/2026 Candriam S.C.A.278,888$8.85M0.0%N/A0.419%
4/27/2026 Simplify Asset Management Inc.68,994$2.19M0.0%-18.8%0.104%
4/27/2026 Y Intercept Hong Kong Ltd45,192$1.43M0.0%N/A0.068%
4/22/2026 Pictet Asset Management Holding SA923,696$29.30M0.0%-4.6%1.388%
4/22/2026 Sterling Capital Management LLC2,170$69K0.0%-43.0%0.003%
4/20/2026 Assenagon Asset Management S.A.146,525$4.65M0.0%N/A0.220%
4/16/2026 SG Americas Securities LLC38,008$1.21M0.0%-19.7%0.057%
4/16/2026 Diversified Trust Co7,021$223K0.0%N/A0.011%
3/9/2026 Corient Private Wealth LLC234,698$6.21M0.0%-2.0%0.353%
2/19/2026 Invesco Ltd.90,144$2.45M0.0%+14.3%0.136%
2/19/2026 Corient Private Wealth LLC234,328$6.21M0.0%-2.2%0.353%
2/18/2026 ADAR1 Capital Management LLC646,767$17.57M1.3%+491.0%0.973%
2/18/2026 XTX Topco Ltd51,523$1.40M0.0%+552.7%0.078%
2/18/2026 Vestal Point Capital LP1,165,000$31.64M1.1%-3.3%1.753%
2/18/2026 Virtus Investment Advisers LLC9,671$263K0.1%+72.9%0.015%
2/18/2026 Wellington Management Group LLP8,079,608$219.44M0.1%+39.3%12.159%
2/18/2026 SummitTX Capital L.P.43,324$1.18M0.0%-54.9%0.065%
2/18/2026 Sphera Funds Management LTD.239,764$6.51M1.2%+15.4%0.361%
2/18/2026 Superstring Capital Management LP88,308$2.40M1.3%N/A0.133%
2/18/2026 Millennium Management LLC1,212,705$32.94M0.0%+24.4%1.825%
2/18/2026 Elmind Capital LP865,000$23.49M6.9%N/A1.302%
2/18/2026 Eversept Partners LP1,434,725$38.97M2.0%+24.3%2.159%
2/18/2026 Commodore Capital LP2,565,000$69.67M4.6%-15.3%3.860%
2/17/2026 Logos Global Management LP350,000$9.51M0.6%N/A0.527%
2/17/2026 ADAR1 Capital Management LLC646,767$17.57M1.3%+491.0%0.973%
2/17/2026 Braidwell LP1,858,109$50.47M1.6%+214.0%2.796%
2/17/2026 Jump Financial LLC145,164$3.94M0.0%+926.4%0.218%
2/17/2026 Price T Rowe Associates Inc. MD2,039,705$55.40M0.0%-14.4%3.070%
2/17/2026 Rock Springs Capital Management LP692,538$18.81M1.0%-4.0%1.042%
2/17/2026 California State Teachers Retirement System58,397$1.59M0.0%+5.2%0.088%
2/17/2026 State of Wisconsin Investment Board38,066$1.03M0.0%-15.0%0.057%
2/17/2026 Royal Bank of Canada2,292$62K0.0%-95.0%0.003%
2/17/2026 Polar Capital Holdings Plc1,008,163$27.38M0.1%-22.5%1.517%
2/16/2026 Panagora Asset Management Inc.21,856$594K0.0%+7.5%0.033%
2/16/2026 Eventide Asset Management LLC1,642,559$44.61M0.7%-11.6%2.472%
2/16/2026 Barclays PLC240,594$6.54M0.0%-1.7%0.362%
2/13/2026 Kestra Advisory Services LLC3,600$98K0.0%N/A0.005%
2/13/2026 The Manufacturers Life Insurance Company 75,130$2.01M0.0%-13.7%0.113%
2/13/2026 Segall Bryant & Hamill LLC514,531$13.98M0.2%-2.7%0.774%
2/13/2026 Affinity Asset Advisors LLC350,000$9.51M0.5%+16.7%0.527%
2/13/2026 Rafferty Asset Management LLC114,230$3.10M0.0%+17.2%0.172%
2/13/2026 First Trust Advisors LP38,313$1.04M0.0%+7.8%0.058%
2/13/2026 Charles Schwab Investment Management Inc.550,729$14.96M0.0%-0.6%0.829%
2/13/2026 Police & Firemen s Retirement System of New Jersey16,822$457K0.0%-7.3%0.025%
2/13/2026 State Street Corp3,397,713$92.28M0.0%+19.5%5.113%
2/13/2026 UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC117,589$3.19M0.0%+11.5%0.177%
2/13/2026 Wells Fargo & Company MN91,599$2.49M0.0%+35.2%0.138%
2/12/2026 HRT Financial LP77,640$2.11M0.0%+21.0%0.117%
2/12/2026 MetLife Investment Management LLC37,012$1.01M0.0%-5.1%0.056%
2/12/2026 Renaissance Technologies LLC118,488$3.22M0.0%-39.1%0.178%
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2/12/2026 Dimensional Fund Advisors LP651,716$17.70M0.0%+153.5%0.981%
2/12/2026 Ensign Peak Advisors Inc6,278$171K0.0%-60.5%0.009%
2/12/2026 Marex Group plc8,200$223K0.0%N/A0.012%
2/12/2026 Alps Advisors Inc.54,559$1.48M0.0%+70.9%0.082%
2/12/2026 Swiss National Bank117,900$3.20M0.0%+1.8%0.177%
2/12/2026 Nuveen LLC200,696$5.45M0.0%-19.5%0.302%
2/11/2026 Deutsche Bank AG136,485$3.71M0.0%+1.4%0.205%
2/11/2026 JPMorgan Chase & Co.173,677$4.72M0.0%-6.0%0.261%
2/11/2026 Propel Bio Management LLC154,300$4.19M3.6%-0.5%0.232%
2/10/2026 TD Asset Management Inc66,570$1.81M0.0%-28.0%0.100%


CLDX Institutional Ownership - Frequently Asked Questions

During the previous two years, 181 institutional investors and hedge funds held shares of Celldex Therapeutics. The most heavily invested institutionals were Wellington Management Group LLP ($355.12M), FMR LLC ($122.75M), Vanguard Group Inc. ($109.38M), California State Teachers Retirement System ($107.61M), State Street Corp ($92.28M), Bellevue Group AG ($92.04M), and Commodore Capital LP ($85.54M).Learn more on Celldex Therapeutics' institutional investors.

Of the 158 institutional investors that purchased Celldex Therapeutics' stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Wellington Management Group LLP ($5.00M), California State Teachers Retirement System ($2.84M), Braidwell LP ($1.86M), Vestal Point Capital LP ($1.86M), Deep Track Capital LP ($1.54M), ADAR1 Capital Management LLC ($1.14M), and Millennium Management LLC ($1.04M).

Institutional investors have bought a total of 19,524,490 shares in the last 24 months. This purchase volume represents approximately $587.33M in transactions.

Of the 55 institutional investors that sold Celldex Therapeutics' stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Woodline Partners LP ($1.30M), Braidwell LP ($919.44K), Commodore Capital LP ($885K), Vestal Point Capital LP ($585K), UBS Group AG ($514.78K), Price T Rowe Associates Inc. MD ($342.81K), and Polar Capital Holdings Plc ($292.27K).

Institutional investors have sold a total of 6,970,626 shares in the last 24 months. This volume of shares sold represents approximately $196.52M in transactions.



Institutional ownership data for NASDAQ:CLDX is compiled from quarterly 13F filings submitted to the U.S. Securities and Exchange Commission (SEC), with the most recent received on 9/9/2026. New 13F filings are added each quarter as they're published.
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