NASDAQ:AGEN | Historical Stock Price | AGENUS 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
2000-02-08 to 2026-09-04
Data captured

Stock Price Chart

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

$1.52$7.89$40.93$212.38$1,102.09$5,718.842000-02-082026-08-27

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

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Historical Stock Price — 2009

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2009-12-31$75.37$75.375,154
2009-12-30$80.08$80.086,937
2009-12-29$78.90$78.906,468
2009-12-28$77.72$77.726,987
2009-12-24$83.61$83.611,941
2009-12-23$82.43$82.435,288
2009-12-22$78.90$78.902,648
2009-12-21$81.26$81.265,413
2009-12-18$77.72$77.729,357
2009-12-17$80.08$80.086,059
2009-12-16$83.61$83.613,709
2009-12-15$85.97$85.973,966
2009-12-14$89.50$89.504,467
2009-12-11$91.85$91.856,308
2009-12-10$82.43$82.431,451
2009-12-09$83.61$83.612,559
2009-12-08$84.79$84.792,728
2009-12-07$87.14$87.143,094
2009-12-04$91.85$91.852,829
2009-12-03$91.85$91.852,508
2009-12-02$88.32$88.322,958
2009-12-01$87.14$87.145,016
2009-11-30$83.61$83.618,457
2009-11-27$89.50$89.503,009
2009-11-25$89.50$89.503,377
2009-11-24$93.03$93.034,052
2009-11-23$89.50$89.5017,787
2009-11-20$105.99$105.998,147
2009-11-19$113.05$113.055,875
2009-11-18$114.23$114.234,993
2009-11-17$114.23$114.232,998
2009-11-16$116.58$116.585,109
2009-11-13$121.30$121.308,571
2009-11-12$127.18$127.185,620
2009-11-11$123.65$123.657,153
2009-11-10$129.54$129.546,606
2009-11-09$124.83$124.8310,153
2009-11-06$120.12$120.125,047
2009-11-05$114.23$114.234,978
2009-11-04$113.05$113.057,183
2009-11-03$114.23$114.237,018
2009-11-02$113.05$113.0521,651
2009-10-30$117.76$117.7615,114
2009-10-29$118.94$118.9417,607
2009-10-28$126.01$126.0114,647
2009-10-27$141.32$141.3214,363
2009-10-26$147.20$147.2015,089
2009-10-23$149.56$149.5630,097
2009-10-22$143.67$143.6737,483
2009-10-21$142.49$142.49165,491
2009-10-20$246.12$246.1210,626
2009-10-19$253.19$253.1915,738
2009-10-16$246.12$246.127,572
2009-10-15$253.19$253.1910,395
2009-10-14$246.12$246.1210,085
2009-10-13$242.59$242.5910,586
2009-10-12$240.24$240.247,329
2009-10-09$244.95$244.956,966
2009-10-08$241.41$241.4121,565
2009-10-07$249.66$249.6612,011
2009-10-06$235.53$235.5315,119
2009-10-05$239.06$239.0610,061
2009-10-02$240.24$240.2412,981
2009-10-01$243.77$243.7711,020
2009-09-30$243.77$243.779,704
2009-09-29$247.30$247.307,104
2009-09-28$249.66$249.667,751
2009-09-25$244.95$244.9513,052
2009-09-24$244.95$244.9529,296
2009-09-23$268.50$268.5037,203
2009-09-22$255.54$255.5410,000
2009-09-21$261.43$261.4346,345
2009-09-18$239.06$239.0613,624
2009-09-17$241.41$241.4118,053
2009-09-16$240.24$240.2426,806
2009-09-15$257.90$257.9011,562
2009-09-14$257.90$257.9010,680
2009-09-11$273.21$273.2130,898
2009-09-10$282.63$282.6329,681
2009-09-09$253.19$253.1921,595
2009-09-08$247.30$247.3028,353
2009-09-04$234.35$234.3511,667
2009-09-03$233.17$233.178,925
2009-09-02$236.70$236.7013,250
2009-09-01$235.53$235.5329,964
2009-08-31$243.77$243.7732,862
2009-08-28$252.01$252.019,125
2009-08-27$249.66$249.6611,769
2009-08-26$255.54$255.5443,509
2009-08-25$241.41$241.4111,783
2009-08-24$247.30$247.3019,870
2009-08-21$237.88$237.887,257
2009-08-20$244.95$244.956,838
2009-08-19$243.77$243.779,911
2009-08-18$237.88$237.888,088
2009-08-17$236.70$236.7017,340
2009-08-14$249.66$249.6624,803
2009-08-13$268.50$268.5021,617
2009-08-12$248.48$248.4813,499
2009-08-11$243.77$243.7721,264
2009-08-10$254.37$254.3713,673
2009-08-07$259.08$259.0817,184
2009-08-06$263.79$263.7923,692
2009-08-05$264.97$264.9730,738
2009-08-04$279.10$279.1050,581
2009-08-03$303.83$303.8367,360
2009-07-31$257.90$257.9036,913
2009-07-30$280.27$280.2742,794
2009-07-29$306.18$306.1876,784
2009-07-28$352.11$352.11129,897
2009-07-27$276.74$276.7423,954
2009-07-24$267.32$267.3222,953
2009-07-23$275.56$275.5673,254
2009-07-22$249.66$249.66130,214
2009-07-21$214.33$214.3324,144
2009-07-20$194.31$194.3111,145
2009-07-17$188.42$188.429,061
2009-07-16$186.06$186.0611,928
2009-07-15$202.55$202.558,617
2009-07-14$217.86$217.8613,321
2009-07-13$200.20$200.207,246
2009-07-10$180.18$180.185,100
2009-07-09$184.89$184.895,526
2009-07-08$191.95$191.958,403
2009-07-07$200.20$200.208,526
2009-07-06$211.97$211.979,273
2009-07-02$227.28$227.288,034
2009-07-01$231.99$231.998,821
2009-06-30$246.12$246.1233,976
2009-06-29$216.68$216.6813,288
2009-06-26$220.22$220.228,588
2009-06-25$231.99$231.9912,569
2009-06-24$216.68$216.689,156
2009-06-23$213.15$213.1517,659
2009-06-22$222.57$222.5711,049
2009-06-19$235.53$235.5310,443
2009-06-18$237.88$237.8812,968
2009-06-17$242.59$242.5951,735
2009-06-16$228.46$228.4615,263
2009-06-15$242.59$242.5915,715
2009-06-12$253.19$253.1937,438
2009-06-11$252.01$252.0138,746
2009-06-10$274.39$274.39103,961
2009-06-09$243.77$243.7770,106
2009-06-08$242.59$242.5970,336
2009-06-05$262.61$262.6192,206
2009-06-04$314.43$314.43272,932
2009-06-03$312.07$312.07446,535
2009-06-02$180.18$180.18179,352
2009-06-01$104.81$104.8160,577
2009-05-29$85.97$85.9728,423
2009-05-28$81.26$81.2623,028
2009-05-27$69.48$69.489,354
2009-05-26$63.59$63.5913,873
2009-05-22$73.01$73.013,753
2009-05-21$73.01$73.013,106
2009-05-20$73.01$73.012,153
2009-05-19$76.55$76.552,193
2009-05-18$77.72$77.725,887
2009-05-15$77.72$77.72759
2009-05-14$78.90$78.901,693
2009-05-13$76.55$76.551,878
2009-05-12$80.08$80.081,639
2009-05-11$80.08$80.081,479
2009-05-08$81.26$81.263,447
2009-05-07$83.61$83.613,331
2009-05-06$82.43$82.433,780
2009-05-05$80.08$80.085,216
2009-05-04$81.26$81.263,394
2009-05-01$85.97$85.973,590
2009-04-30$83.61$83.616,560
2009-04-29$83.61$83.6126,903
2009-04-28$77.72$77.728,008
2009-04-27$82.43$82.433,524
2009-04-24$76.55$76.551,720
2009-04-23$80.08$80.084,673
2009-04-22$94.21$94.211,756
2009-04-21$96.57$96.576,861
2009-04-20$78.90$78.902,532
2009-04-17$76.55$76.552,418
2009-04-16$69.48$69.482,101
2009-04-15$74.19$74.193,794
2009-04-14$84.79$84.799,792
2009-04-13$55.35$55.35493
2009-04-09$52.99$52.99140
2009-04-08$51.82$51.82132
2009-04-07$51.82$51.82372
2009-04-06$52.99$52.99314
2009-04-03$54.17$54.17744
2009-04-02$54.17$54.171,433
2009-04-01$58.88$58.88285
2009-03-31$57.70$57.701,055
2009-03-30$58.88$58.88591
2009-03-27$57.70$57.703,501
2009-03-26$47.11$47.1110,947
2009-03-25$44.75$44.75264
2009-03-24$44.75$44.75294
2009-03-23$43.57$43.57204
2009-03-20$42.39$42.39175
2009-03-19$44.75$44.75251
2009-03-18$42.39$42.39205
2009-03-17$44.75$44.75317
2009-03-16$40.04$40.042,452
2009-03-13$42.39$42.392,939
2009-03-12$43.57$43.57949
2009-03-11$36.51$36.51409
2009-03-10$41.22$41.22242
2009-03-09$38.86$38.86340
2009-03-06$35.33$35.33363
2009-03-05$36.51$36.511,039
2009-03-04$38.86$38.86267
2009-03-03$36.51$36.511,009
2009-03-02$36.51$36.51326
2009-02-27$47.11$47.112,625
2009-02-26$36.51$36.51882
2009-02-25$37.68$37.681,094
2009-02-24$44.75$44.75828
2009-02-23$48.28$48.28258
2009-02-20$50.64$50.64270
2009-02-19$52.99$52.99367
2009-02-18$52.99$52.99129
2009-02-17$51.82$51.82377
2009-02-13$48.28$48.28226
2009-02-12$54.17$54.17541
2009-02-11$52.99$52.99414
2009-02-10$52.99$52.99331
2009-02-09$56.53$56.53228
2009-02-06$58.88$58.881,254
2009-02-05$50.64$50.64784
2009-02-04$50.64$50.64288
2009-02-03$48.28$48.28373
2009-02-02$48.28$48.28295
2009-01-30$44.75$44.75347
2009-01-29$50.64$50.64121
2009-01-28$49.46$49.465,446
2009-01-27$44.75$44.75396
2009-01-26$45.93$45.93538
2009-01-23$44.75$44.75224
2009-01-22$45.93$45.93470
2009-01-21$42.39$42.39533
2009-01-20$42.39$42.39960
2009-01-16$42.39$42.39376
2009-01-15$41.22$41.221,323
2009-01-14$43.57$43.574,918
2009-01-13$51.82$51.82214
2009-01-12$54.17$54.17267
2009-01-09$58.88$58.88280
2009-01-08$57.70$57.70251
2009-01-07$57.70$57.70248
2009-01-06$54.17$54.17221
2009-01-05$56.53$56.53255
2009-01-02$56.53$56.53191