Celldex Therapeutics, Inc. (CLDX) - 13D/13G Filings

Real time Form 13D and 13G transaction reports:

  • Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company's equity securities.
  • Due to inconsistent filing format, it is highly recommended that you read the orignal filing form.
  • Shares have beem adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
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Reported
DateTime
Transaction
Date
TypeCompany
Symbol
Filed By
Symbol
Shares Owned
% Owned
Shares Vs. Prev ReportView
2026-05-15
4:01 pm
Sale
2026-03-3113GCELLDEX THERAPEUTICS INC C
CLDX
Kynam Capital Management, LP5,840,567
8.770%
-659,433decrease
(-10.15%)
Filing
History
2026-05-15
2:37 pm
Sale
2026-03-3113GCELLDEX THERAPEUTICS INC C
CLDX
Bellevue Group AG1,200,000
1.500%
-2,417,669decrease
(-66.83%)
Filing
History
2026-05-12
10:18 am
Sale
2026-03-3113GCELLDEX THERAPEUTICS INC C
CLDX
STATE STREET CORP
STT
2,804,168
4.200%
-593,545decrease
(-17.47%)
Filing
History
2026-05-06
11:06 am
Sale
2026-03-3113GCELLDEX THERAPEUTICS INC C
CLDX
FMR LLC3,749,048
5.600%
-1,108,620decrease
(-22.82%)
Filing
History
2026-04-29
5:36 pm
Purchase
2026-03-3113GCELLDEX THERAPEUTICS INC C
CLDX
VANGUARD CAPITAL MANAGEMENT LLC3,446,795
5.170%
3,446,795increase
(New Position)
Filing
History
2026-03-26
5:16 pm
Sale
2026-03-1313GCELLDEX THERAPEUTICS INC C
CLDX
VANGUARD GROUP INC0
0.000%
-3,046,331decrease
(Position Closed)
Filing
History
2026-03-10
6:41 pm
Sale
2025-12-3113GCELLDEX THERAPEUTICS INC C
CLDX
Point72 Asset Management, L.P.1,758,357
2.600%
-2,706,043decrease
(-60.61%)
Filing
History
2026-02-10
11:21 am
Purchase
2025-12-3113GCELLDEX THERAPEUTICS INC C
CLDX
Wellington Management Group LLP8,079,608
12.200%
684,862increase
(+9.26%)
Filing
History
2026-02-09
06:26 am
Purchase
2025-12-3113GCELLDEX THERAPEUTICS INC C
CLDX
STATE STREET CORP
STT
3,397,713
5.100%
1,106,259increase
(+48.28%)
Filing
History
2025-11-14
7:58 pm
Purchase
2025-08-1813GCELLDEX THERAPEUTICS INC C
CLDX
Bellevue Group AG3,617,669
5.400%
3,617,669increase
(New Position)
Filing
History
2025-11-14
5:08 pm
Sale
2025-09-3013GCELLDEX THERAPEUTICS INC C
CLDX
Commodore Capital LP3,028,335
4.600%
-321,665decrease
(-9.60%)
Filing
History
2025-11-14
12:19 pm
Sale
2025-09-3013GCELLDEX THERAPEUTICS INC C
CLDX
T. Rowe Price Associates, Inc.2,382,701
3.600%
-1,174,435decrease
(-33.02%)
Filing
History
2025-11-07
08:18 am
Purchase
2025-10-3113GCELLDEX THERAPEUTICS INC C
CLDX
Wellington Management Group LLP7,394,746
11.100%
2,162,420increase
(+41.33%)
Filing
History
2025-08-14
2:59 pm
Sale
2025-06-3013GCELLDEX THERAPEUTICS INC C
CLDX
Eventide Asset Management, LLC1,356,186
2.000%
-1,975,819decrease
(-59.30%)
Filing
History
2025-08-12
10:34 am
Sale
2025-06-3013GCELLDEX THERAPEUTICS INC C
CLDX
Wellington Management Group LLP5,232,326
7.900%
-3,121,825decrease
(-37.37%)
Filing
History
2025-07-10
4:10 pm
Purchase
2025-07-0213GCELLDEX THERAPEUTICS INC C
CLDX
Point72 Asset Management, L.P.4,464,400
6.700%
2,780,368increase
(+165.10%)
Filing
History
2025-05-15
11:48 am
Purchase
2025-03-3113GCELLDEX THERAPEUTICS INC C
CLDX
Kynam Capital Management, LP6,500,000
9.790%
1,435,793increase
(+28.35%)
Filing
History
2025-05-12
10:44 am
Sale
2025-03-3113GCELLDEX THERAPEUTICS INC C
CLDX
Wellington Management Group LLP8,354,151
12.600%
-889,448decrease
(-9.62%)
Filing
History
2025-04-17
09:35 am
Sale
2025-03-3113GCELLDEX THERAPEUTICS INC C
CLDX
BlackRock, Inc.
BLK
4,819,293
7.300%
-661,377decrease
(-12.07%)
Filing
History
2025-04-10
4:05 pm
Purchase
2025-04-0313GCELLDEX THERAPEUTICS INC C
CLDX
Commodore Capital LP3,350,000
5.000%
3,350,000increase
(New Position)
Filing
History
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