OTC:CSCIF | Historical Stock Price | COSCIENS Biopharma 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
2000-05-10 to 2026-08-27
Data captured

Stock Price Chart

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

$0.81$11.06$151.57$2,076.53$28,449.18$389,763.772000-05-102026-08-27

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

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Historical Stock Price — 2018

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volume
2018-12-31$294.00$294.001,645
2018-12-28$297.00$297.003,172
2018-12-27$285.00$285.001,830
2018-12-26$272.00$272.001,366
2018-12-24$256.00$256.001,774
2018-12-21$259.00$259.002,556
2018-12-20$275.00$275.001,508
2018-12-19$283.00$283.001,777
2018-12-18$271.00$271.002,530
2018-12-17$290.00$290.004,113
2018-12-14$285.00$285.004,352
2018-12-13$305.00$305.004,469
2018-12-12$330.00$330.002,286
2018-12-11$330.00$330.003,265
2018-12-10$351.00$351.004,585
2018-12-07$367.00$367.002,029
2018-12-06$369.00$369.006,582
2018-12-04$366.00$366.006,738
2018-12-03$387.00$387.0013,918
2018-11-30$338.00$338.006,761
2018-11-29$314.00$314.004,191
2018-11-28$306.00$306.004,441
2018-11-27$304.00$304.002,399
2018-11-26$300.00$300.003,035
2018-11-23$292.00$292.003,480
2018-11-21$302.00$302.005,449
2018-11-20$302.00$302.008,977
2018-11-19$300.00$300.0013,744
2018-11-16$290.00$290.0037,290
2018-11-15$254.00$254.005,987
2018-11-14$243.00$243.001,661
2018-11-13$238.00$238.004,945
2018-11-12$241.00$241.004,827
2018-11-09$226.00$226.002,537
2018-11-08$213.00$213.001,989
2018-11-07$206.00$206.006,348
2018-11-06$237.00$237.004,897
2018-11-05$237.00$237.009,763
2018-11-02$223.00$223.008,891
2018-11-01$218.00$218.0026,311
2018-10-31$218.00$218.00171,783
2018-10-30$130.00$130.00267
2018-10-29$132.00$132.00544
2018-10-26$130.00$130.00683
2018-10-25$133.00$133.00809
2018-10-24$130.00$130.001,206
2018-10-23$142.00$142.00509
2018-10-22$145.00$145.00216
2018-10-19$146.00$146.00368
2018-10-18$139.00$139.001,169
2018-10-17$153.00$153.00195
2018-10-16$154.00$154.00438
2018-10-15$152.00$152.00461
2018-10-12$154.00$154.001,207
2018-10-11$162.00$162.001,295
2018-10-10$169.00$169.00505
2018-10-09$166.00$166.00469
2018-10-08$167.00$167.00516
2018-10-05$174.00$174.00459
2018-10-04$176.00$176.00747
2018-10-03$178.00$178.00518
2018-10-02$176.00$176.00498
2018-10-01$175.00$175.00381
2018-09-28$174.00$174.00173
2018-09-27$174.00$174.00475
2018-09-26$173.00$173.00174
2018-09-25$171.00$171.00329
2018-09-24$171.00$171.00569
2018-09-21$173.00$173.00331
2018-09-20$174.00$174.001,346
2018-09-19$163.00$163.00539
2018-09-18$165.00$165.00518
2018-09-17$164.00$164.00573
2018-09-14$160.00$160.00584
2018-09-13$164.00$164.00756
2018-09-12$168.00$168.00589
2018-09-11$168.00$168.00728
2018-09-10$170.00$170.00469
2018-09-07$175.00$175.00477
2018-09-06$176.00$176.00493
2018-09-05$178.00$178.00466
2018-09-04$180.00$180.00757
2018-08-31$182.00$182.00754
2018-08-30$184.00$184.00501
2018-08-29$180.00$180.00650
2018-08-28$180.00$180.00412
2018-08-27$176.00$176.00711
2018-08-24$179.00$179.00713
2018-08-23$186.00$186.00441
2018-08-22$183.00$183.00402
2018-08-21$177.00$177.00645
2018-08-20$182.00$182.00492
2018-08-17$182.00$182.00598
2018-08-16$182.00$182.00303
2018-08-15$188.00$188.00435
2018-08-14$186.00$186.00556
2018-08-13$185.00$185.00444
2018-08-10$194.00$194.001,855
2018-08-09$202.00$202.002,039
2018-08-08$199.00$199.00444
2018-08-07$193.00$193.00610
2018-08-06$194.00$194.00383
2018-08-03$197.00$197.001,097
2018-08-02$189.00$189.00485
2018-08-01$192.00$192.00473
2018-07-31$178.00$178.00337
2018-07-30$180.00$180.00268
2018-07-27$177.00$177.00464
2018-07-26$175.00$175.001,253
2018-07-25$186.00$186.00328
2018-07-24$188.00$188.00592
2018-07-23$188.00$188.00528
2018-07-20$192.00$192.00402
2018-07-19$194.00$194.00556
2018-07-18$192.00$192.00710
2018-07-17$194.00$194.00290
2018-07-16$192.00$192.00504
2018-07-13$196.00$196.00512
2018-07-12$197.00$197.00982
2018-07-11$199.00$199.00328
2018-07-10$197.00$197.00446
2018-07-09$199.00$199.00730
2018-07-06$203.00$203.00331
2018-07-05$195.00$195.00716
2018-07-03$200.00$200.00276
2018-07-02$200.00$200.00310
2018-06-29$195.00$195.00914
2018-06-28$198.00$198.001,341
2018-06-27$188.00$188.001,838
2018-06-26$205.00$205.001,355
2018-06-25$206.00$206.001,336
2018-06-22$211.00$211.001,034
2018-06-21$213.00$213.001,408
2018-06-20$220.00$220.001,261
2018-06-19$215.00$215.00942
2018-06-18$219.00$219.001,118
2018-06-15$214.00$214.001,019
2018-06-14$212.00$212.00902
2018-06-13$215.00$215.001,296
2018-06-12$222.00$222.001,479
2018-06-11$221.00$221.002,109
2018-06-08$212.00$212.001,191
2018-06-07$204.00$204.002,299
2018-06-06$210.00$210.003,957
2018-06-05$220.00$220.002,660
2018-06-04$225.00$225.003,739
2018-06-01$237.00$237.002,149
2018-05-31$237.00$237.008,566
2018-05-30$262.00$262.009,123
2018-05-29$244.00$244.0011,946
2018-05-25$216.00$216.004,752
2018-05-24$203.00$203.002,045
2018-05-23$194.00$194.001,212
2018-05-22$192.00$192.001,463
2018-05-21$197.00$197.001,870
2018-05-18$188.00$188.001,176
2018-05-17$190.00$190.001,865
2018-05-16$183.00$183.002,486
2018-05-15$188.00$188.003,234
2018-05-14$186.00$186.001,808
2018-05-11$179.00$179.002,313
2018-05-10$168.00$168.00947
2018-05-09$171.00$171.002,322
2018-05-08$179.00$179.006,207
2018-05-07$190.00$190.001,929
2018-05-04$187.00$187.00896
2018-05-03$187.00$187.001,836
2018-05-02$176.00$176.00959
2018-05-01$168.00$168.00532
2018-04-30$166.00$166.00646
2018-04-27$167.00$167.00540
2018-04-26$162.00$162.00848
2018-04-25$165.00$165.00760
2018-04-24$155.00$155.001,100
2018-04-23$161.00$161.00726
2018-04-20$156.00$156.00331
2018-04-19$150.00$150.00794
2018-04-18$148.00$148.001,088
2018-04-17$143.00$143.00467
2018-04-16$149.00$149.00947
2018-04-13$144.00$144.00604
2018-04-12$141.00$141.00759
2018-04-11$133.00$133.00426
2018-04-10$131.00$131.001,025
2018-04-09$136.00$136.00586
2018-04-06$135.00$135.001,146
2018-04-05$131.00$131.001,261
2018-04-04$126.00$126.002,459
2018-04-03$119.00$119.002,955
2018-04-02$133.00$133.001,841
2018-03-29$146.00$146.001,363
2018-03-28$150.00$150.002,232
2018-03-27$162.00$162.001,603
2018-03-26$156.00$156.00760
2018-03-23$160.00$160.001,668
2018-03-22$166.00$166.00409
2018-03-21$167.00$167.00467
2018-03-20$165.00$165.00587
2018-03-19$165.00$165.00348
2018-03-16$169.00$169.00985
2018-03-15$168.00$168.001,069
2018-03-14$163.00$163.00337
2018-03-13$165.00$165.00928
2018-03-12$169.00$169.00708
2018-03-09$169.00$169.001,340
2018-03-08$164.00$164.001,157
2018-03-07$161.00$161.00655
2018-03-06$161.00$161.001,442
2018-03-05$163.00$163.004,175
2018-03-02$179.00$179.00709
2018-03-01$170.00$170.001,365
2018-02-28$179.00$179.001,266
2018-02-27$185.00$185.001,194
2018-02-26$189.00$189.00601
2018-02-23$188.00$188.00499
2018-02-22$189.00$189.001,265
2018-02-21$186.00$186.00632
2018-02-20$188.00$188.00493
2018-02-16$190.00$190.001,206
2018-02-15$195.00$195.001,553
2018-02-14$193.00$193.00929
2018-02-13$189.00$189.001,069
2018-02-12$188.00$188.00915
2018-02-09$191.00$191.005,208
2018-02-08$195.00$195.001,981
2018-02-07$203.00$203.002,004
2018-02-06$206.00$206.003,820
2018-02-05$203.00$203.002,501
2018-02-02$209.00$209.003,520
2018-02-01$218.00$218.001,933
2018-01-31$216.00$216.002,103
2018-01-30$223.00$223.002,172
2018-01-29$235.00$235.001,184
2018-01-26$239.00$239.002,270
2018-01-25$233.00$233.002,233
2018-01-24$235.00$235.002,838
2018-01-23$240.00$240.003,760
2018-01-22$240.00$240.006,349
2018-01-19$228.00$228.005,206
2018-01-18$228.00$228.008,630
2018-01-17$241.00$241.00162,673
2018-01-16$207.00$207.002,674
2018-01-12$217.00$217.002,860
2018-01-11$223.00$223.001,523
2018-01-10$225.00$225.001,806
2018-01-09$225.00$225.001,664
2018-01-08$230.00$230.001,627
2018-01-05$235.00$235.002,325
2018-01-04$232.00$232.003,510
2018-01-03$229.00$229.004,042
2018-01-02$237.00$237.003,469