Celldex Therapeutics, Inc.

CLDX

Exchange: Nasdaq
Industry: In Vitro & In Vivo Diagnostic Substances
SEC CIK: 0000744218

SEC filings (opens in a new tab)

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.

Q4 2021 vs. Q3 2021

How the institutions holding Celldex Therapeutics, Inc. changed between Q3 2021 and Q4 2021.

All holders in Q4 2021 All holders in Q3 2021

13F holders of CLDX: Q3 2021 compared with Q4 2021
Measure	Q3 2021	Of which not filed for Q4 2021	Q4 2021	Change
Holders	161	1	181	+21
Shares	43.0M	2.16K	46.1M	+3.10M (+7.2%)
Value	$2.33B	$117.0K	$1.79B	−$544.6M (−23.3%)

1 institution that held it in Q3 2021 haven't filed for Q4 2021 yet. Not filing isn't selling, so the changes leave them out.

New holders (42)

Institutions that held Celldex Therapeutics, Inc. at the end of Q4 2021 but not at the end of Q3 2021.

Institutions new to CLDX in Q4 2021
Institution	Shares	Value	% of portfolio
Eversept Partners, LP	592,478	$22.9M	1.91%
Woodline Partners LP	259,895	$10.0M	0.15%
Kynam Capital Management, LP	226,726	$8.76M	4.68%
Two Sigma Investments, LP	193,641	$7.48M	0.02%
American Century Companies Inc	184,431	$7.13M	0.00%
First Trust Advisors LP	101,783	$3.93M	0.00%
Cormorant Asset Management, LP	100,000	$3.86M	0.23%
Two Sigma Advisers, LP	60,300	$2.33M	0.01%
Verition Fund Management LLC	53,862	$2.08M	0.03%
Millennium Management LLC	39,671	$1.53M	0.00%
Kennedy Capital Management, Inc.	28,158	$1.09M	0.02%
Allspring Global Investments Holdings, LLC	23,299	$900.0K	0.00%
Old Mission Capital LLC	21,663	$837.0K	0.04%
HRT Financial LP	20,487	$791.0K	0.00%
Gsa Capital Partners LLP	18,726	$724.0K	0.09%
AlphaCrest Capital Management LLC	17,272	$667.0K	0.02%
Boulder Hill Capital Management LP	16,900	$653.0K	0.63%
PDT Partners, LLC	16,327	$631.0K	0.05%
Ergoteles LLC	16,161	$624.0K	0.02%
Alpine Global Management, LLC	15,880	$614.0K	0.09%
Walleye Capital LLC	14,227	$550.0K	0.02%
Atom Investors LP	10,781	$417.0K	0.12%
Ensign Peak Advisors, Inc	10,710	$414.0K	0.00%
Handelsbanken Fonder AB	8,900	$344.0K	0.00%
Jefferies Group LLC	7,500	$289.8K	0.01%
Balyasny Asset Management LLC	7,362	$284.0K	0.00%
Twinbeech Capital LP	7,144	$276.0K	0.02%
NTB Financial Corp	6,895	$266.0K	0.19%
Brown Advisory Inc	5,723	$221.0K	0.00%
High Net Worth Advisory Group LLC	2,000	$77.0K	0.03%
Signet Financial Management, LLC	1,933	$75.0K	0.01%
Denali Advisors LLC	1,100	$43.0K	0.02%
Leonteq Securities AG	500	$19.3K	0.00%
Fortitude Advisory Group L.L.C.	333	$13.0K	0.01%
Rise Advisors, LLC	83	$3.21K	0.00%
Byrne Asset Management LLC	86	$3.00K	0.00%
Meeder Asset Management Inc	33	$1.00K	0.00%
CoreCap Advisors, LLC	16	$1.00K	0.00%
National Bank of Canada	1	$0	0.00%
Umb Bank N A	2	$0	0.00%
Harvest Group Wealth Management, LLC	10	$0	0.00%
Covestor Ltd	10	$0	0.00%

Sold out (21)

Institutions that held Celldex Therapeutics, Inc. at the end of Q3 2021 and filed for Q4 2021 without it.

Institutions that sold out of CLDX in Q4 2021
Institution	Shares, Q3 2021	Value, Q3 2021
Commodore Capital LP	248,207	$13.4M
Renaissance Technologies LLC	161,276	$8.71M
EAM Global Investors LLC	96,528	$5.21M
EAM Investors, LLC	86,399	$4.67M
Arrowstreet Capital, Limited Partnership	44,356	$2.40M
Empowered Funds, LLC	34,836	$1.88M
Virtue Capital Management, LLC	22,304	$1.20M
Gotham Asset Management, LLC	12,946	$699.0K
Connor, Clark & Lunn Investment Management Ltd.	12,117	$654.0K
Bellwether Advisors, LLC	11,623	$627.0K
Belvedere Trading LLC	9,191	$416.0K
Truist Financial Corp	4,768	$257.0K
HighTower Advisors, LLC	4,147	$225.0K
Prudential Financial Inc	3,883	$210.0K
Walleye Trading LLC	3,518	$190.0K
O'Shaughnessy Asset Management, LLC	2,603	$141.0K
Hanseatic Management Services Inc	1,340	$72.0K
Lindbrook Capital, LLC	990	$53.0K
Optimum Investment Advisors	250	$13.0K
Federated Hermes, Inc.	121	$7.00K
Private Capital Group, LLC	16	$1.00K

Not filed for Q4 2021 yet (1)

Institutions that held Celldex Therapeutics, Inc. at the end of Q3 2021 and haven't filed a 13F for Q4 2021. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding CLDX in Q3 2021 that haven't filed for Q4 2021
Institution	Shares, Q3 2021	Value, Q3 2021
First Mercantile Trust Co	2,162	$117.0K