NASDAQ:SMMT | Stock Price History | Summit 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
2015-03-05 to 2026-09-04
Data captured

Stock Price Chart

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

$0.76$1.67$3.65$8.01$17.57$38.542015-03-052026-08-27

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

Historical Stock Price

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2026-09-04$16.95342,147
2026-09-03$15.54967,578
2026-09-02$14.18174,168
2026-09-01$13.47275,875
2026-08-31$13.55140,476
2026-08-28$14.18204,204
2026-08-27$14.33$14.334,836,700$14.36321,880
2026-08-26$14.23$14.2311,625,800$14.75489,340
2026-08-25$13.36$13.366,333,700$13.28253,199
2026-08-24$12.73$12.734,389,300$13.09232,336
2026-08-21$13.16$13.167,072,900$12.70484,677
2026-08-20$12.43$12.436,568,700$13.00229,830
2026-08-19$13.11$13.115,431,200$13.34547,086
2026-08-18$12.82$12.824,603,900$12.56279,758
2026-08-17$12.78$12.789,878,600$13.07637,280
2026-08-14$13.35$13.359,748,900$13.61431,703
2026-08-13$14.00$14.006,562,500$15.15448,524
2026-08-12$15.10$15.103,676,400$15.48203,180
2026-08-11$15.12$15.124,960,100$15.05208,987
2026-08-10$14.87$14.873,491,600$14.17137,209
2026-08-07$13.96$13.962,182,600$13.9098,596
2026-08-06$13.54$13.542,487,300$13.60123,343
2026-08-05$13.53$13.533,154,600$13.94168,187
2026-08-04$13.76$13.763,999,900$13.24172,134
2026-08-03$13.05$13.053,451,600$13.08153,409
2026-07-31$13.02$13.023,995,100$13.45278,804
2026-07-30$13.44$13.443,815,400$12.76254,859
2026-07-29$12.80$12.803,777,900$12.67305,916
2026-07-28$12.55$12.555,017,500$13.05253,010
2026-07-27$13.11$13.114,231,500$13.86227,631
2026-07-24$13.66$13.668,153,700$13.79432,181
2026-07-23$14.98$14.983,283,500$14.66145,232
2026-07-22$14.74$14.744,255,900$15.40254,299
2026-07-21$14.63$14.633,925,500$13.63178,513
2026-07-20$13.50$13.502,706,500$13.76157,006
2026-07-17$13.81$13.812,841,100
2026-07-16$13.76$13.763,754,200
2026-07-15$15.07$15.072,302,900
2026-07-14$15.47$15.473,037,000
2026-07-13$15.30$15.303,391,200
2026-07-10$15.25$15.252,724,800
2026-07-09$15.48$15.482,366,000
2026-07-08$15.69$15.692,775,800
2026-07-07$15.88$15.882,798,500
2026-07-06$15.93$15.933,922,100
2026-07-02$15.42$15.427,100,400
2026-07-01$14.38$14.383,908,400
2026-06-30$14.57$14.575,320,500
2026-06-29$14.32$14.325,979,300
2026-06-26$14.01$14.014,183,400
2026-06-25$14.18$14.184,818,000
2026-06-24$14.25$14.256,770,000
2026-06-23$14.25$14.255,963,100
2026-06-22$14.28$14.287,392,700
2026-06-18$13.75$13.758,723,200
2026-06-17$14.07$14.075,961,600
2026-06-16$13.88$13.885,505,400
2026-06-15$14.13$14.138,529,400
2026-06-12$14.01$14.019,844,900
2026-06-11$13.08$13.089,289,800
2026-06-10$13.05$13.058,628,100
2026-06-09$14.29$14.295,034,900
2026-06-08$14.11$14.115,493,100
2026-06-05$14.77$14.776,516,700
2026-06-04$14.84$14.845,414,600
2026-06-03$15.07$15.074,371,800
2026-06-02$14.86$14.8610,043,900
2026-06-01$15.71$15.7119,587,400
2026-05-29$17.54$17.547,205,400
2026-05-28$17.41$17.414,361,300
2026-05-27$17.36$17.362,209,100
2026-05-26$17.00$17.005,257,400
2026-05-22$16.62$16.626,890,400
2026-05-21$17.47$17.473,373,900
2026-05-20$17.89$17.894,630,100
2026-05-19$15.85$15.852,644,200
2026-05-18$16.02$16.024,421,300
2026-05-15$16.87$16.872,673,100
2026-05-14$18.14$18.141,971,800
2026-05-13$18.79$18.792,207,600
2026-05-12$18.95$18.952,238,400
2026-05-11$18.66$18.664,233,600
2026-05-08$18.08$18.083,878,900
2026-05-07$17.15$17.152,732,400
2026-05-06$17.85$17.853,859,500
2026-05-05$17.54$17.544,487,000
2026-05-04$16.98$16.986,470,500
2026-05-01$16.12$16.1218,118,800
2026-04-30$21.46$21.465,658,200
2026-04-29$20.83$20.832,760,300
2026-04-28$21.26$21.262,950,100
2026-04-27$22.12$22.123,708,600
2026-04-24$22.08$22.085,254,000
2026-04-23$22.27$22.274,971,400
2026-04-22$24.58$24.588,248,900
2026-04-21$26.38$26.3810,194,500
2026-04-20$25.12$25.123,371,500
2026-04-17$25.15$25.154,899,800
2026-04-16$24.42$24.426,793,300
2026-04-15$21.12$21.123,537,500