Celldex Therapeutics CLDX Institutional Ownership

NASDAQ CLDX

$39.67 +0.30 (+0.76%)

As of: Sep 4, 2026 · 3:59 PM EDT

Institutions by Trading Activity

255 Institutions

Increased 158 62.0%

Unchanged 40 15.7%

Reduced 57 22.4%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

110.09%

▲+0.60 pp QoQ

Shares Held by Institutions

85.69Mn

of 77.84Mn outstanding

▲+20.71% QoQ

Shares Outstanding

77.84Mn

-7.85Mn held outside 13F filers

Institutional Investors

255

filed 13F for Jun 2026

▲+26 vs prior quarter

Net Shares Added (QoQ)

+14.70Mn

accumulated since last quarter

Value of Holdings

$3.37Bn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Quarter ending 30 Jun, 2026

Celldex Therapeutics, Inc. (NASDAQ:CLDX) appears in 255 institutional 13F filings for the quarter ending June 2026.

Collectively, these holders controlled 110.1% of Celldex Therapeutics's outstanding shares in June 2026, up from 109.5% in March 2026.
Their total shares held in CLDX increased 20.71% from the prior quarter, while the number of investors in Celldex Therapeutics increased 43.26% year over year.
Activity in CLDX broke down as 158 buyers, 57 sellers, and 40 unchanged among 255 total holders.
The aggregate institutional position in Celldex Therapeutics amounted to 85.69Mn shares as of June 2026, up by 14.7Mn shares quarter on quarter, and up 13.52Mn shares year over year.
WELLINGTON MANAGEMENT GROUP LLP is the top holder of Celldex Therapeutics as of June 30, 2026, with 9.54Mn shares representing 12.26% of outstanding stock.
Leading buyers of Celldex Therapeutics shares for the quarter ending June 2026 were PRICE T ROWE ASSOCIATES INC /MD/ (2.6Mn), Deep Track Capital, LP (1.66Mn), Logos Global Management LP (1.65Mn), BlackRock, Inc. (1.63Mn), State Street Corp (1.1Mn).
Leading sellers of Celldex Therapeutics shares for the quarter ending June 2026 were Point72 Asset Management, L.P. (3.11Mn), Commodore Capital LP (1.35Mn), BRAIDWELL LP (919.44K), Kynam Capital Management, LP (517.66K), Novo Holdings A/S (175.0K).
According to Business Quant data, leading holders of CLDX for June 2026 are WELLINGTON MANAGEMENT GROUP LLP (9.54Mn), BlackRock, Inc. (7.0Mn), Kynam Capital Management, LP (5.32Mn), PRICE T ROWE ASSOCIATES INC /MD/ (4.69Mn), State Street Corp (3.9Mn), FMR LLC (3.72Mn), VANGUARD CAPITAL MANAGEMENT LLC (3.46Mn), Deep Track Capital, LP (2.94Mn), Logos Global Management LP (2.1Mn), GEODE CAPITAL MANAGEMENT, LLC (2.02Mn).

Form 13F Holdings

255 Institutional Holders

Report period 30 Jun, 2026

Total shares held 85.69Mn

Of outstanding 110.09%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	WELLINGTON MANAGEMENT GROUP LLP	0000902219	9,543,671	12.26%	▲983,195	+11.49%	$355.12Mn
2	BlackRock, Inc.	0002012383	7,002,530	9.00%	▲1,632,645	+30.40%	$260.56Mn
3	Kynam Capital Management, LP	0001907884	5,322,908	6.84%	▼517,659	-8.86%	$198.07Mn
4	PRICE T ROWE ASSOCIATES INC /MD/	0000080255	4,685,223	6.02%	▲2,598,891	+124.57%	$174.34K
5	State Street Corp	0000093751	3,900,427	5.01%	▲1,096,259	+39.09%	$145.13Mn
6	FMR LLC	0000315066	3,722,888	4.78%	▼26,160	-0.70%	$138.53Mn
7	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	3,464,831	4.45%	▲503,936	+17.02%	$128.93Mn
8	Deep Track Capital, LP	0001856083	2,939,151	3.78%	▲1,655,172	+128.91%	$109.37Mn
9	Logos Global Management LP	0001792126	2,100,000	2.70%	▲1,650,000	+366.67%	$78.14Mn
10	GEODE CAPITAL MANAGEMENT, LLC	0001214717	2,022,226	2.60%	▲334,152	+19.79%	$75.26Mn
11	Eversept Partners, LP	0001697013	1,785,941	2.29%	▼2,075	-0.12%	$66.45Mn
12	Goldman Sachs Group Inc	0000886982	1,615,343	2.08%	▲626,927	+63.43%	$60.11Mn
13	Commodore Capital LP	0001831942	1,350,000	1.73%	▼1,346,616	-49.94%	$50.23Mn
14	Bellevue Group AG	0001674546	1,200,000	1.54%	0	0.00%	$44.65Mn
15	BAKER BROS. ADVISORS LP	0001263508	1,182,611	1.52%	▲517,241	+77.74%	$44.00Mn
16	MILLENNIUM MANAGEMENT LLC	0001273087	1,170,787	1.50%	▼82,745	-6.60%	$43.56Mn
17	DIMENSIONAL FUND ADVISORS LP	0000354204	1,073,985	1.38%	▲14,451	+1.36%	$39.96Mn
18	AMERICAN CENTURY COMPANIES INC	0000748054	1,042,395	1.34%	▲186,085	+21.73%	$38.79Mn
19	EVENTIDE ASSET MANAGEMENT, LLC	0001442891	1,037,000	1.33%	0	0.00%	$38.59Mn
20	Novo Holdings A/S	0001388325	1,025,000	1.32%	▼175,000	-14.58%	$38.14Mn

Showing 1 to 20 of 255 holders