Celldex Therapeutics, Inc. (CLDX) NASDAQ

Currency In USD

CLDX Historical Return

If you invested $1000 in Celldex Therapeutics, Inc. (CLDX) 10 years ago, it would be worth $663.07 as of September 12, 2026, based on a reinvested dividends scenario. Over the same period, a $1000 investment made 5 years ago would be worth $682.57, while $1000 invested 1 year ago would be worth $1,509.2. This corresponds to total returns of -33.69%, -31.74%, 50.92%, respectively, with annualized returns of -4.02%, -7.35%, 50.92%.

Custom investment amounts or purchase dates can also be explored using the Stoculator calculator. Past performance does not guarantee future results.

CLDX Historical Data

Date Range:

Date	Open	Close	Adj Close	High	Low	Volume
September 11, 2026	38.39	36.9	36.9	38.59	36.84	1.03M
September 10, 2026	38.78	38.1	38.1	38.86	37.75	949,009
September 09, 2026	38.95	38.78	38.78	40.03	38.67	588,406
September 08, 2026	38.78	39.12	39.12	39.87	38.5	833,635
September 04, 2026	38.96	39.68	39.68	39.81	38.9	414,529
September 03, 2026	39.5	39.37	39.37	39.89	38.95	416,545
September 02, 2026	39.43	39.48	39.48	40.55	39.01	476,382
September 01, 2026	39.13	39.24	39.24	39.9	38.94	542,481
August 31, 2026	38.86	39.63	39.63	39.84	38.74	696,906
August 28, 2026	40.33	39.12	39.12	40.57	39.04	424,938
August 27, 2026	40.44	40.46	40.46	41	40.02	450,002
August 26, 2026	41.18	40.57	40.57	42.12	40.06	540,651
August 25, 2026	41.02	41.22	41.22	41.92	40.63	550,918
August 24, 2026	40.16	40.57	40.57	40.98	39.53	416,888
August 21, 2026	40.38	40.38	40.38	41.24	40.12	837,684
August 20, 2026	41.4	39.94	39.94	42	39.45	1M
August 19, 2026	42.1	41.7	41.7	43.2	41.33	1.39M
August 18, 2026	41.29	41.79	41.79	42.36	41.03	998,961
August 17, 2026	41.54	41.92	41.92	42.81	41.07	629,803
August 14, 2026	42.23	41.95	41.95	42.35	40.88	849,360
August 13, 2026	45.13	42.61	42.61	45.13	42.56	670,858
August 12, 2026	44.4	44.87	44.87	45.14	43.8	1.59M
August 11, 2026	42.81	44.33	44.33	44.6	42.46	767,362
August 10, 2026	41.71	42.97	42.97	43.21	41.41	727,615
August 07, 2026	41.87	41.71	41.71	42.92	41.29	808,911
August 06, 2026	41.12	41.56	41.56	41.74	40.84	799,080
August 05, 2026	39.36	41.06	41.06	41.15	38.86	788,348
August 04, 2026	37.69	39.05	39.05	39.34	37.54	1.03M
August 03, 2026	38.09	37.69	37.69	38.59	37.05	1.64M
July 31, 2026	38.5	38.06	38.06	38.65	37.15	875,735
July 30, 2026	37.26	38.49	38.49	38.59	37.23	742,213
July 29, 2026	35.58	37.51	37.51	37.76	35.58	1.57M
July 28, 2026	35.93	35.58	35.58	36.05	35	565,503
July 27, 2026	35.68	35.65	35.65	36.4	35.12	1.04M
July 23, 2026	34.25	35.42	35.42	35.75	33.97	856,467
July 22, 2026	33.83	34.77	34.77	36.09	33.37	1.93M
July 21, 2026	35.58	35.66	35.66	36	34.57	1.37M
July 20, 2026	36.05	35.42	35.42	36.65	35.29	527,085
July 17, 2026	34.71	35.35	35.35	36.04	34.37	1.15M
July 16, 2026	37.49	35.4	35.4	37.94	34.97	954,814
July 15, 2026	38.13	38.31	38.31	38.69	37.51	534,001
July 14, 2026	38.7	38.17	38.17	39.22	38.08	702,067
July 13, 2026	38.61	38.53	38.53	38.66	37.53	578,773
July 10, 2026	38.9	39.11	39.11	39.19	37.81	694,010
July 09, 2026	39.3	38.98	38.98	39.59	38.56	612,506
July 08, 2026	39.48	38.96	38.96	40.19	38.68	1.62M
July 07, 2026	38.13	39.93	39.93	40.3	37.3	1.7M
July 06, 2026	38.2	37.95	37.95	38.5	37.26	470,282
July 02, 2026	36.95	38.37	38.37	38.42	36.17	876,721
July 01, 2026	37.15	36.78	36.78	37.64	36.57	679,546
June 30, 2026	37.42	37.21	37.21	39.16	36.96	2.47M
June 29, 2026	35.32	37.44	37.44	37.54	34.66	1.58M
June 26, 2026	34.06	35.26	35.26	35.47	33.77	4.79M
June 25, 2026	33.71	34.09	34.09	35.39	33.7	1.14M
June 24, 2026	32.95	33.78	33.78	34.15	32.63	1.23M
June 23, 2026	32.87	32.98	32.98	33.72	32.57	669,849
June 22, 2026	32.9	33.41	33.41	33.46	32.26	1.96M
June 18, 2026	33.69	32.43	32.43	34.14	32.35	2.38M
June 17, 2026	32.58	32.93	32.93	33.56	32.29	991,614
June 16, 2026	32.2	32.32	32.32	32.45	31.41	998,067