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.

View year

Historical Stock Price — 2026

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volume
2026-08-27$4.98$4.98500
2026-08-26$5.30$5.30100
2026-08-25$5.16$5.160
2026-08-24$5.16$5.16200
2026-08-21$5.50$5.500
2026-08-20$5.50$5.50200
2026-08-19$5.83$5.83500
2026-08-18$5.25$5.25600
2026-08-17$5.64$5.640
2026-08-14$5.64$5.640
2026-08-13$5.64$5.640
2026-08-12$5.64$5.64100
2026-08-11$5.30$5.300
2026-08-10$5.30$5.30800
2026-08-07$4.92$4.920
2026-08-06$4.92$4.92200
2026-08-05$5.10$5.10500
2026-08-04$5.30$5.301,800
2026-08-03$5.14$5.140
2026-07-31$5.14$5.14300
2026-07-30$5.00$5.000
2026-07-29$5.00$5.00800
2026-07-28$5.41$5.410
2026-07-27$5.41$5.418,700
2026-07-24$5.50$5.50100
2026-07-23$5.50$5.501,900
2026-07-22$5.40$5.40100
2026-07-21$5.40$5.400
2026-07-20$5.40$5.40500
2026-07-17$5.75$5.750
2026-07-16$5.75$5.754,900
2026-07-15$5.75$5.751,000
2026-07-14$6.00$6.00600
2026-07-13$6.00$6.003,200
2026-07-10$5.75$5.75800
2026-07-09$5.73$5.733,000
2026-07-08$6.83$6.833,600
2026-07-07$7.00$7.001,800
2026-07-06$2.35$2.352,400
2026-07-02$2.45$2.45400
2026-07-01$2.30$2.30300
2026-06-30$2.29$2.296,900
2026-06-29$2.15$2.155,000
2026-06-26$2.13$2.134,200
2026-06-25$2.05$2.05700
2026-06-24$1.99$1.99900
2026-06-23$2.10$2.10400
2026-06-22$2.13$2.134,300
2026-06-18$2.26$2.267,300
2026-06-17$2.30$2.302,500
2026-06-16$2.15$2.152,500
2026-06-15$2.16$2.1613,200
2026-06-12$2.05$2.052,700
2026-06-11$2.03$2.030
2026-06-10$2.03$2.03800
2026-06-09$1.97$1.971,600
2026-06-08$2.04$2.0411,500
2026-06-05$1.82$1.82300
2026-06-04$2.00$2.004,200
2026-06-03$2.00$2.0015,300
2026-06-02$1.85$1.857,600
2026-06-01$2.10$2.10500
2026-05-29$2.00$2.004,400
2026-05-28$2.10$2.103,500
2026-05-27$1.96$1.965,700
2026-05-26$1.85$1.852,700
2026-05-22$1.87$1.871,100
2026-05-21$1.76$1.761,400
2026-05-20$1.84$1.841,900
2026-05-19$1.87$1.870
2026-05-18$1.87$1.870
2026-05-15$1.87$1.870
2026-05-14$1.87$1.87300
2026-05-13$1.93$1.93900
2026-05-12$1.91$1.910
2026-05-11$1.91$1.910
2026-05-08$1.91$1.91700
2026-05-07$1.94$1.94400
2026-05-06$1.94$1.94800
2026-05-05$1.92$1.922,100
2026-05-04$1.96$1.96600
2026-05-01$1.94$1.941,200
2026-04-30$1.88$1.88300
2026-04-29$1.95$1.950
2026-04-28$1.95$1.950
2026-04-27$1.95$1.950
2026-04-24$1.95$1.950
2026-04-23$1.95$1.951,300
2026-04-22$1.96$1.961,800
2026-04-21$2.03$2.030
2026-04-20$2.03$2.031,400
2026-04-17$2.03$2.034,800
2026-04-16$2.00$2.00800
2026-04-15$1.84$1.842,200
2026-04-14$1.89$1.89400
2026-04-13$2.09$2.09400
2026-04-10$2.09$2.090
2026-04-09$2.09$2.094,600
2026-04-08$2.25$2.255,700
2026-04-07$2.87$2.8715,700
2026-04-06$2.65$2.6526,100
2026-04-02$1.73$1.7317,500
2026-04-01$1.15$1.157,300
2026-03-31$1.02$1.028,100
2026-03-30$1.05$1.058,300
2026-03-27$0.83$0.830
2026-03-26$0.83$0.8316,700
2026-03-25$0.84$0.841,000
2026-03-24$0.96$0.96500
2026-03-23$0.85$0.8510,100
2026-03-20$0.79$0.791,100
2026-03-19$0.86$0.8610,300
2026-03-18$1.06$1.0612,400
2026-03-17$1.17$1.1725,100
2026-03-16$1.39$1.390
2026-03-13$1.39$1.390
2026-03-12$1.39$1.39200
2026-03-11$1.50$1.50800
2026-03-10$1.59$1.590
2026-03-09$1.59$1.59500
2026-03-06$1.57$1.571,200
2026-03-05$1.60$1.60500
2026-03-04$1.71$1.71100
2026-03-03$1.67$1.670
2026-03-02$1.67$1.67700
2026-02-27$1.75$1.750
2026-02-26$1.75$1.75300
2026-02-25$1.88$1.883,000
2026-02-24$1.98$1.980
2026-02-23$1.98$1.980
2026-02-20$1.98$1.98100
2026-02-19$1.99$1.994,200
2026-02-18$2.03$2.030
2026-02-17$2.03$2.03400
2026-02-13$2.06$2.060
2026-02-12$2.06$2.06300
2026-02-11$1.88$1.882,700
2026-02-10$2.05$2.051,000
2026-02-09$2.05$2.050
2026-02-06$2.05$2.051,300
2026-02-05$2.05$2.05900
2026-02-04$2.05$2.050
2026-02-03$2.05$2.05500
2026-02-02$2.10$2.101,000
2026-01-30$2.05$2.050
2026-01-29$2.05$2.05200
2026-01-28$2.11$2.11300
2026-01-27$2.03$2.030
2026-01-26$2.03$2.035,300
2026-01-23$2.06$2.06200
2026-01-22$2.05$2.050
2026-01-21$2.05$2.05700
2026-01-20$2.15$2.150
2026-01-16$2.15$2.150
2026-01-15$2.15$2.15200
2026-01-14$2.16$2.161,600
2026-01-13$2.15$2.150
2026-01-12$2.15$2.151,800
2026-01-09$2.10$2.100
2026-01-08$2.10$2.10500
2026-01-07$2.10$2.10500
2026-01-06$2.16$2.160
2026-01-05$2.16$2.16400
2026-01-02$2.06$2.060