NASDAQ:CLDX | Historical Stock Price | Celldex Therapeutics, Inc.

Complete retained daily price history on its own workbook tab. Split-adjusted close keeps every historical share price on one comparable split basis. Cumulative dividend-reinvested close is the daily close of a rebased total-return index: it starts with one share at the earliest retained close, reinvests every distribution, and normalizes every forward and reverse split exactly once. Admitted exchange opening prices remain a distinct current-session series.

Available history
1986-05-15 to 2026-09-04
Data captured

Stock Price Chart

Blue: Split-adjusted close · Orange: Cumulative dividend-reinvested close

$1.70$7.29$31.23$133.81$573.38$2,457.001986-05-152026-08-27

Logarithmic scale. Both lines share the same starting value for the selected range.

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Historical Stock Price — 1999

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
1999-12-31$444.38$444.381,064
1999-12-30$382.50$382.50932
1999-12-29$343.13$343.13961
1999-12-28$354.38$354.381,018
1999-12-27$360.00$360.001,352
1999-12-23$360.00$360.00543
1999-12-22$348.75$348.751,256
1999-12-21$348.75$348.75352
1999-12-20$360.00$360.001,302
1999-12-17$315.00$315.00792
1999-12-16$323.44$323.44217
1999-12-15$320.63$320.63478
1999-12-14$337.50$337.50516
1999-12-13$360.00$360.00671
1999-12-10$337.50$337.50159
1999-12-09$337.50$337.50489
1999-12-08$360.00$360.00482
1999-12-07$360.00$360.00454
1999-12-06$360.00$360.001,162
1999-12-03$438.75$438.75357
1999-12-02$421.88$421.88181
1999-12-01$421.88$421.88631
1999-11-30$438.75$438.751,180
1999-11-29$438.75$438.75897
1999-11-26$427.50$427.50731
1999-11-24$382.50$382.50352
1999-11-23$371.25$371.25691
1999-11-22$365.63$365.63319
1999-11-19$371.25$371.25839
1999-11-18$393.75$393.75266
1999-11-17$382.50$382.50841
1999-11-16$354.38$354.38351
1999-11-15$348.75$348.75451
1999-11-12$365.63$365.63168
1999-11-11$371.25$371.25773
1999-11-10$326.25$326.251,185
1999-11-09$348.75$348.75251
1999-11-08$376.88$376.88456
1999-11-05$393.75$393.75211
1999-11-04$360.00$360.00408
1999-11-03$382.50$382.50794
1999-11-02$371.25$371.25216
1999-11-01$360.00$360.00236
1999-10-29$393.75$393.75267
1999-10-28$393.75$393.75668
1999-10-27$360.00$360.00559
1999-10-26$298.13$298.131,532
1999-10-25$292.50$292.50741
1999-10-22$275.63$275.63863
1999-10-21$270.00$270.001,268
1999-10-20$292.50$292.50559
1999-10-19$320.63$320.63311
1999-10-18$315.00$315.001,843
1999-10-15$315.00$315.001,132
1999-10-14$360.00$360.00189
1999-10-13$360.00$360.00449
1999-10-12$360.00$360.00560
1999-10-11$371.25$371.25210
1999-10-08$382.50$382.50204
1999-10-07$382.50$382.50514
1999-10-06$360.00$360.00359
1999-10-05$360.00$360.00584
1999-10-04$371.25$371.25388
1999-10-01$388.13$388.13164
1999-09-30$382.50$382.50259
1999-09-29$371.25$371.25202
1999-09-28$360.00$360.001,452
1999-09-27$365.63$365.63518
1999-09-24$382.50$382.50272
1999-09-23$371.25$371.25408
1999-09-22$382.50$382.50851
1999-09-21$348.75$348.75457
1999-09-20$393.75$393.751,067
1999-09-17$405.00$405.00976
1999-09-16$405.00$405.002,047
1999-09-15$405.00$405.00222
1999-09-14$410.63$410.63382
1999-09-13$405.00$405.00616
1999-09-10$405.00$405.001,167
1999-09-09$410.63$410.63778
1999-09-08$410.63$410.631,469
1999-09-07$421.88$421.88587
1999-09-03$427.50$427.50119
1999-09-02$433.13$433.13162
1999-09-01$450.00$450.00330
1999-08-31$450.00$450.002,028
1999-08-30$483.75$483.75698
1999-08-27$455.63$455.63408
1999-08-26$495.00$495.00956
1999-08-25$517.50$517.501,121
1999-08-24$511.88$511.882,302
1999-08-23$427.50$427.50509
1999-08-20$427.50$427.50650
1999-08-19$405.00$405.00243
1999-08-18$427.50$427.50627
1999-08-17$399.38$399.38708
1999-08-16$382.50$382.50363
1999-08-13$405.00$405.00397
1999-08-12$416.25$416.25628
1999-08-11$393.75$393.75286
1999-08-10$405.00$405.00557
1999-08-09$405.00$405.00510
1999-08-06$461.25$461.25588
1999-08-05$461.25$461.25762
1999-08-04$483.75$483.75667
1999-08-03$483.75$483.75747
1999-08-02$472.50$472.50905
1999-07-30$495.00$495.001,554
1999-07-29$506.25$506.251,964
1999-07-28$489.38$489.381,252
1999-07-27$461.25$461.251,756
1999-07-26$506.25$506.254,844
1999-07-23$562.50$562.5026,052
1999-07-22$405.00$405.001,998
1999-07-21$360.00$360.00857
1999-07-20$405.00$405.003,919
1999-07-19$388.13$388.131,133
1999-07-16$348.75$348.75406
1999-07-15$337.50$337.50333
1999-07-14$303.75$303.75583
1999-07-13$315.00$315.00546
1999-07-12$343.13$343.131,358
1999-07-09$360.00$360.00732
1999-07-08$348.75$348.75606
1999-07-07$360.00$360.002,277
1999-07-06$348.75$348.751,639
1999-07-02$354.38$354.38355
1999-07-01$315.00$315.003,824
1999-06-30$382.50$382.501,561
1999-06-29$315.00$315.00655
1999-06-28$303.75$303.751,286
1999-06-25$303.75$303.751,508
1999-06-24$281.25$281.25874
1999-06-23$275.63$275.63680
1999-06-22$270.00$270.001,994
1999-06-21$247.50$247.501,693
1999-06-18$225.00$225.00147
1999-06-17$225.00$225.00197
1999-06-16$213.75$213.75274
1999-06-15$213.75$213.75261
1999-06-14$213.75$213.75478
1999-06-11$213.75$213.75819
1999-06-10$225.00$225.00200
1999-06-09$219.38$219.3884
1999-06-08$202.50$202.5033
1999-06-07$225.00$225.00155
1999-06-04$219.38$219.3893
1999-06-03$213.75$213.75508
1999-06-02$225.00$225.00164
1999-06-01$219.38$219.38123
1999-05-28$225.00$225.00663
1999-05-27$225.00$225.00134
1999-05-26$225.00$225.00213
1999-05-25$225.00$225.00526
1999-05-24$230.63$230.63173
1999-05-21$241.88$241.8851
1999-05-20$247.50$247.50182
1999-05-19$236.25$236.25118
1999-05-18$230.63$230.63159
1999-05-17$258.75$258.75253
1999-05-14$236.25$236.2582
1999-05-13$275.63$275.63402
1999-05-12$270.00$270.00744
1999-05-11$236.25$236.25159
1999-05-10$247.50$247.50208
1999-05-07$247.50$247.50175
1999-05-06$225.00$225.00190
1999-05-05$225.00$225.00748
1999-05-04$230.63$230.63134
1999-05-03$241.88$241.88264
1999-04-30$264.38$264.38362
1999-04-29$247.50$247.50271
1999-04-28$270.00$270.00578
1999-04-27$258.75$258.7582
1999-04-26$247.50$247.50119
1999-04-23$241.88$241.88104
1999-04-22$253.13$253.13378
1999-04-21$253.13$253.13780
1999-04-20$270.00$270.001,388
1999-04-19$202.50$202.50193
1999-04-16$202.50$202.50258
1999-04-15$208.13$208.13130
1999-04-14$213.75$213.75281
1999-04-13$213.75$213.75151
1999-04-12$208.13$208.13349
1999-04-09$225.00$225.00554
1999-04-08$213.75$213.75690
1999-04-07$225.00$225.00206
1999-04-06$225.00$225.00169
1999-04-05$230.63$230.63329
1999-04-01$258.75$258.75522
1999-03-31$281.25$281.25639
1999-03-30$225.00$225.00340
1999-03-29$230.63$230.63184
1999-03-26$225.00$225.00304
1999-03-25$230.63$230.63272
1999-03-24$258.75$258.75209
1999-03-23$230.63$230.63253
1999-03-22$236.25$236.25187
1999-03-19$225.00$225.00202
1999-03-18$241.88$241.88166
1999-03-17$247.50$247.50418
1999-03-16$258.75$258.7569
1999-03-15$236.25$236.2563
1999-03-12$236.25$236.25196
1999-03-11$264.38$264.38236
1999-03-10$225.00$225.00598
1999-03-09$236.25$236.25314
1999-03-08$264.38$264.38188
1999-03-05$258.75$258.75544
1999-03-04$247.50$247.50314
1999-03-03$247.50$247.50214
1999-03-02$247.50$247.50502
1999-03-01$270.00$270.00753
1999-02-26$270.00$270.001,372
1999-02-25$303.75$303.75659
1999-02-24$315.00$315.00850
1999-02-23$315.00$315.00460
1999-02-22$315.00$315.00418
1999-02-19$326.25$326.25392
1999-02-18$315.00$315.00448
1999-02-17$315.00$315.00604
1999-02-16$326.25$326.25506
1999-02-12$348.75$348.7591
1999-02-11$354.38$354.38428
1999-02-10$309.38$309.3879
1999-02-09$337.50$337.50255
1999-02-08$315.00$315.00200
1999-02-05$337.50$337.50384
1999-02-04$326.25$326.25373
1999-02-03$315.00$315.00815
1999-02-02$360.00$360.00231
1999-02-01$348.75$348.75393
1999-01-29$376.88$376.88389
1999-01-28$360.00$360.00683
1999-01-27$343.13$343.13783
1999-01-26$371.25$371.25323
1999-01-25$365.63$365.63481
1999-01-22$365.63$365.63246
1999-01-21$371.25$371.25549
1999-01-20$360.00$360.00631
1999-01-19$371.25$371.25630
1999-01-15$382.50$382.50460
1999-01-14$405.00$405.00404
1999-01-13$393.75$393.751,346
1999-01-12$393.75$393.75963
1999-01-11$360.00$360.00834
1999-01-08$388.13$388.13653
1999-01-07$433.13$433.13472
1999-01-06$427.50$427.50888
1999-01-05$360.00$360.00508
1999-01-04$348.75$348.75723